Optical Journalhttp://bjomejag.squarespace.com/journal/Tue, 19 Aug 2008 09:48:46 +0000en-USSquarespace Site Server v5.8.2 (http://www.squarespace.com/)Filters for Sub-Angstrom SolarscopeFilter ApplicationsRobert Johnson, D.Sc.Sat, 12 May 2007 11:37:33 +0000http://bjomejag.squarespace.com/journal/2007/5/12/filters-for-sub-angstrom-solarscope.html107475:952836:1051613The following is some additional information on building a Solarscope as designed by David Groski; for which he won recognition at the 2004 Stellafane competitiion. The filters used were provided through me from my BJOMEJAG EBUYER STORE. These filters are production seconds from a H alpha customer of Omega Optical, Inc., that have found a secondary use that may be more valuable than the primary use. The filter performance shortfall for the original use is that their passband is at a wavelength red or longer than the desired H alpha at 656.3 nm. Because these are interference filters the wavelength can be adjusted with a minor tilt of the film surface to the incidence beam. Secondly, by using two filters in series, it is possible to achieve a bandpass much purer than the single filter. 

The following link to David's site will take you to a well detailed description and set of directions for building the Solarscope.  My comments refer to the alignment of the filter elements. What I supply is a pair of filters that are both Fabry-Perot solid etalon with a nominal passband of .15 nm. One of the two has secondary elements to control the spectral region from the UV to about 1 micron, or 1,000 nm. Along with the secondary elements is a narrow passband filter with the defining band. All of this is laminated into a common assembly of 3 to 5 mm thickness. When viewed in transmission this filter will be a deep red. Along with this assembly is a single narrow band etalon ( cyan in color, when viewed in transmission ) with a similar passband of 0.15 nm, centered at H alpha. The trick is to use these together to achieve the very narrow pass region. David has determined from the performance achieved that the resulting passband is about 0.08 nm. Two filters used in this configuration can give exceptional performance.

Spectrophotometric measurements of this performance are not achievable without the highest resolution spectrophotometer. The limitation is to have adequate source brightness with long enough effective focal length to produce an absolutely parallel beam as it passes through the filter/etalon. Any deviation from parallel will result in reduced transmission and expanded bandwidth. My measurements will not show the full performance of the filters. The ultimate performance is best measured by the ability to produce structure with contrast. The limit of what I can confirm is that the band is achievable at Hydrogen Alpha. I provide a curve of the measured performance of each element, as well as a roughly aligned series transmission curve. 

The greatest care must be applied to optimizing the alignment. I would suggest aligning the red appearing filter to achieve the greatest brightness, as well as possible to see flares and some structure. Once this is achieved the second filter (cyan appearing) should be inserted and the angle adjusted to achieve the highest contrast. The angle sensitivity is quite great. I am selecting filters that will optimize at angles from 0 to 10 degrees from normal. In every case the filters should be inclined to one another, as this will prevent inter-interference. A final degree of refinement can be achieved by rotating the two filters in relation to one another. This refinement will optimize the exact coincidence of the two filters pass wavelength.

This and many other optical applications can be fulfilled with the excess inventory filters offered at by BJOMEJAG EBUYER STORE. If your needs are more specific, or if you need a quantity quote, a visit to Omega Optical's Rapid Custom application can result in a immediate response to your need. Thanks for looking.

An Important word of caution: Never view the Sun without consideration of the intensity created especially when a light gathering devise such as a telescope is included.

Bob

]]>http://bjomejag.squarespace.com/journal/rss-comments-entry-1051613.xmlNomenclature for Optical Coatings and FiltersGeneral InfoRobert Johnson, D.Sc.Sat, 05 May 2007 19:14:25 +0000http://bjomejag.squarespace.com/journal/2007/5/5/nomenclature-for-optical-coatings-and-filters.html107475:952836:1041966Over the years the various manufacturers of Optical Coatings and Optical Filters have developed concise nomenclature systems for describing product and services. Although these systems vary, many of the more recent manufacturers have adopted a system much like Omega Optical, Inc. has developed. The system allows a 7 to 10 character string to define much about the optical performance of the part, or to concisely describe what is needed. The general order of the character string is to start with a 3 to 5 character numeric that defines a principle wavelength. This is followed by a two letter descriptor, and that by a 2 to 3 character "conditional". The most significant components are as follows:

For Normal Incidence parts;

BP for band-pass ( a filter with a passband of a Gaussian transmission region against a relatively dark background )

   WB for wide-band ( a filter that has a "squared off" passband )

   DF for discriminating filter ( a filter with very abrupt transitions from pass region to rejection region ) ( .001 BW = 2 x HBW )

   RDF for Raman discriminating filter ( a filter with .001 BW = 1.7 x HBW, typically used to isolate Raman spectra )

   ABP for Alpha band-pass ( Alpha Design filters made from abrupt edges  with slopes from principle wavelength to 1 e-6 in 1-5% )

      (B)eta ( Alpha design edge filter with slope from OD 0.3 to OD 5.0 in < 5% )

      (G)amma ( Alpha design filters with slope from OD 0.3 to OD 5.0 in < 3% )

      (E)psilon ( Alpha design filters with slope from OD 0.3 to OD 5.0 in < 1% ) 

LP for long-pass ( a filter that transmits wavelength longer that the principle wavelength ) ( transmits lower frequencies )

SP for short-pass ( a filter that transmits wavelengths shorter than the principle wavelength ) ( transmits higher frequencies )

RB for rejection-band ( a filter that rejects by reflection the principle wavelength )

MB for Multi-band ( a filter with a multitude of principle bands ) ( covered by Omega patent # )

CF for cut-off ( a coating that isolates a region of transmission from reflection at normal incidence )

 

For  Non-Normal Incidence parts;

DC for dichroic ( a coating providing a wide region of reflection and transmission )

DR for dichroic reflector  ( a coating providing a relatively wide region of transmission but narrow region of reflection )

DM for dichroic mirror  ( a coating providing a relatively wide region of reflection but a narrow region of transmission )

note:  DR & DM  design parts have less of a performance impact depending on the polarization of the incidence light. Whenever light traverses an interface of dielectric materials there is an interaction depending on the component of the electric field in the plane defined by the incident and reflected direction. When the energy is in this plane it is considered P or parallel . Whatever energy is orthogonal to the plane is considered S or perpendicular. The S plane light sees an increased refractive index, while the P sees a reduced refractive index. These index changes cause a wavelength shift of the spectral performance. This effect must be considered carefully in a system designs.

Following notes will deal in more details with the effects of Polarization as well as the related wavelength shifts. These are significant except in a well collininated system.

To find out more of what specific products as well as capabilities are available, please visit the Omega Optical, Inc. web site. An application to the Rapid custom program can result in a quote within a couple days, and a product within two weeks. For immediate delivery of custom items a visit to my BJOMEJAG EBUYER STORE can have existing product delivered in a few days. 

 

]]>http://bjomejag.squarespace.com/journal/rss-comments-entry-1041966.xmlWhich Nebula Filter is BestFilter ApplicationsRobert Johnson, D.Sc.Sat, 24 Mar 2007 10:41:47 +0000http://bjomejag.squarespace.com/journal/2007/3/24/which-nebula-filter-is-best.html107475:952836:976629The choice of the best Nebula Filter, or deep sky viewing filter depends on the details of your situation. If you were viewing from Newfundland Canada, in the winter, I would suggest that no filter is the best solution. In this case there are few photons of light emitted from the earth that could be scattered by particles in space, so as to distort the viewing image. Drastically different is the observation from New York in the summertime, when the intensity of the radiation of space by the earth is very bright.

The radiation from the earth fortunately, is concentrated at several very specific spectral lines. These lines are the emission of atomic transitions of the heavy metals, used in outdoor lighting fixtures. Most prominant are the lines of Mercury and Sodium, at 436, 546, 577, 589nm.

Also facilitationg the enhancement of collecting an image is the fact that the emission of the distant stars and their components, is made up of a small number of prominant emission lines. The primary elements being imaged are Hydrogen and Oxygen, as well as Nitrogen. Fortunately, these lines are distinguishable from the earth glow. The ideal filter will isolate the prior set from the latter set.

Optical interference filters are passive optical elements that by carefully organizing a multitude of precise layers of different elemental matter, create distructive interference of some light wavelengths, while haveing no distructive effect on other wavelengths. Typically the desired (Transmitted) wavelengths are congrugated and the undesired are displaced significantly. The more complicated the mix of wavelengths, the more complicated the solution. Many interference filters employ over 200 distint layers, each controlled to a tollerance measured in single atoms.

The Best Filter is the one with the fewest layers that passes the most of the desired light, while interfering with the most of the undesired light. In a typical solution the ratio of transmission to attenuation can be many orders of magnitude. For viewing purposes this ratio in optimal at ratios of >10 and <100 to 1.

Following is a listing of the filters offered for astronomers conducting earth bound observation of deep sky objects such as Nebula and Galaxies, along with a list of features:  

Nebula (Wide) Hb & OIII

Nebula Wide.jpgThis filter has a relatively wide region in the Blue/Green that catches the H (beta) and O+++ lines while attenuating the 436, 546, 577, and 589nm lines of Hg and Na. This filter has the highest Signal/Noise for visual observation, but has the limitation that the image will be Cyan in Hue. The eBay auction umber for this filter is 170054373181 and the description  

Filter 486 Astronomy Hb & OIII Nebula II 28mm 1.25"

 

 

 

Link: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&sspagename=STRK%3AMESE%3AIT&viewitem=&item=170054373181&rd=1&rd=1

 

 

Nebula (Narrow) Hb & OIII

Nebula Narrow.jpg

 

 

This filter is a relatively narrow Nebula Filter. The filter just catches the 486nm H Bbeta) and the O+++ lines at 501nm, and deeply attenuates the Hg 436, 546, and 577nm lines, as well as the 589nm Sodium lines. The filter has the feature that there is a balanced transmission of the Red including >50% of the H (alpha) light, as well as varios N+ lines. The result is a more neutral Hue to the image.

The eBay auction number is 170092874223 and the description:

Optical Filter Astronomy Hb & OIII Nebula EBAY

Link: http://cgi.ebay.com/Optical-Filter-Astronomy-Hb-OIII-Nebula-EBAY_W0QQitemZ170092874223QQcategoryZ31745QQtcZphotoQQcmdZViewItem

 

Nebula Filter (Rejection)

As an alternative, a filter can be made to specifically reject undesired wavelengths.

Nebula (rejection)

Nebula Rejection.jpg

 

 

 

In this example the filter specifically attenautes the 436 and 577 nm light of Mercury, as well as the 589 nm sodium emission. The remaining visible light is passed, with conentration on the regions of Hb and OIII, as well as N+ and Ha. The result is a filter with the best chance to get adequate exposure while limiting the background gow. The eBay number is 170023320247 and the description:

Optical Filter Astronomy Na & Hg Skylight Reject 28mm

link:http://cgi.ebay.com/Optical-Filter-Astronomy-Na-Hg-Skylight-Reject-28mm_W0QQitemZ170023320247QQcategoryZ31745QQtcZphotoQQcmdZViewItem

Watch for a following Journal entry with comparison pictures showing the effect of a Sky Light, or Light Polution FIlter, or UHC filter. There are many minor variations on this common theme.

A general note of significance is that all of these filters are designed with the eye as the detector. Film is generally more red sensitive that the eye, so this consideration should be folded into the choice. When one uses a digital camera the spectral sensitivity can be wildly varied. Unfiltered CCD and other digital detectors are very high in red and IR sensitivity, and none of these filters deal with this aspect. My store does offer solutions, and future notes will address this detail

Thanks again for looking.

Bob

]]>http://bjomejag.squarespace.com/journal/rss-comments-entry-976629.xmlFilters for Eliminating Earth Glow or Sky LightFilter ApplicationsRobert Johnson, D.Sc.Thu, 22 Mar 2007 11:14:56 +0000http://bjomejag.squarespace.com/journal/2007/3/22/filters-for-eliminating-earth-glow-or-sky-light.html107475:952836:972819A very effective use of interference filters is to sharpen the image of an astronomic field of view. A common example of such a view is a Nebula or distend Galaxy. Limiting clear visibility is the superimposed image of background dust and debris. Although this image is out of focus, it does produce a "background" that reduces the contrast of the primary image. The great distance and size of the primary image makes it also very diffuse, and not that different from the background. To enhance the quality of the primary image, it is desired to eliminate the background.

One argument is that the background is also visible light, of the same wavelength regions as the image it self. Fortunately, the background produced from Earth Glow is primarily of some specific emission lines. For most outdoor lighting that is the source of Earth Glow or Sky Light the lamps used are low pressure Metallic Vapor lamps. The most common metals are Mercury and Sodium; and these have very characteristic spectrums. Mercury emits at 436, 546, and 577 nm, and Sodium at 589 nm. It is therefore possible to make a filter that rejects these lines and passes most of the remaining continuum.

On the part of the source, there also are specific line that are emitted by the most common elements in the universe. Building a filter that isolates these lines will give a higher signal to noise image, or a more distinct view. The gases common to emission of stars are Oxygen and Hydrogen, as well as nitrogen. Filters are built to give some combination of these lines, with high throughput, and low transmission of the background spectrum, and especially that coming from the previously mentioned man made lamps.

At my eBay store http://stores.ebay.com/BJOMEJAG-EBUYER-STORE I offer several options of filters for Nebula and other deep sky viewing.   

Do check out my eBay store at http://stores.ebay.com/BJOMEJAG-EBUYER-STORE for very good values in NOS interference filters. These are either old inventory or cosmetic seconds that are made available at very attractive cost. The cosmetic seconds are all functional, and are provided with actual spectral data. The (N)ew (O)ld (S)tock is fully inspected and accompanied with final performance data. Most often these are custom items made in excess of program demand. As such it is possible to get top line filters for pennies on the OEMs original cost.

Thanks for looking.

]]>http://bjomejag.squarespace.com/journal/rss-comments-entry-972819.xmlExpanded list of Available Optical Filters (Vis to NIR)Filter ListsRobert Johnson, D.Sc.Mon, 19 Mar 2007 14:07:57 +0000http://bjomejag.squarespace.com/journal/2007/3/19/expanded-list-of-available-optical-filters-vis-to-nir.html107475:952836:967255The following list is first quality over-run parts for OEM manufacturers in the life science area. Parts are available for immediate delivery by purchase through EBAY. Simply go to www.ebay.com and search for BJOMEJAG EBUYER STORE . At the EBAY store you can purchase a coupon and on check out attach a list of items from this list. Shipment is typically in three days. Thanks!

400ALP25.0 +0/-0.1mm>/= OD5 UV-403nm>/= 50% avg 410-430nm; >/= 80% avg 430-650nm73004900
400BP10 12.7 +0/-0.25mmOD4 avg. UV-1200nm, >/= OD3 190-210 nmT @ CWL: >/= 30%202001835
400CFLP 25.0 +0/-0.5mmT </= 1% avg, </= 5% absolute 320-378nm>/= 80% avg 440-1320nm192007563
400DCLP 36.0 x 25.7 +/-0.25mm >/= 80% avg, 65% min. 481-483nm102006121
400DCLP 25.7 x 36.0 +/-0.25mm >/= 80% avg, 65% min 415-700nm102006859
400DF1570.0 +0/-0.2mm>/= OD4 430-IR>/= 35% peak33006777
404DF14 25.0 +0/-0.25mm>/= OD5 avg, OD4 min. UV-1150nm>/= 50% peak32007222
405BP1015.0 ±0.05mmOD4 300-1100 nm448/FWHM < T peak < 672/FWHM42001657
405BP1018.9 +0/-0.2mmOD4Peak transmission: >/= 30%;
Transmission uniformity: +/- 5% variation		22001700
405BP10 12.5 ±0.2mm>/= OD4 UV-1800nm28-36%532007716
405BP11 15.0 +0/-0.2mm>/= OD4 UV-1200nm>/= 40% peak332007442
405BP125.0 x 20.0 +0/-0.5mm>/= OD4.7 @ 254nm & out of band to 1200nm;
>/= OD3.7 @ 365nm & @ 436nm		>/= 20% @ 405nm152002638
405BP712.5 +0/-0.2mm>/= OD5 200-375nm & 445-1200nm>/= 40% peak123003187
410BP1015.0mm nominalOD4 300-1100 nm 12001675
410BP80 25.0 +0/-0.1mm>/= OD4 UV-1150nm>/= 45% peak172005478
415/750/900
20.0 +0/-0.25mm>/= OD4, out of band, UV to 1000 nm
TRIPLE BAND		CWL = 415 +/- 10 nm, FWHM = 50 +/- 20 nm,
%T >/= 20% @ peak; 750 CWL band: CWL = 750 +/- 10 nm,
FWHM = 30 +/- 10 nm, %T >/= 70% @ peak; 900 CWL band:
CWL = 900 +/- 10 nm, FWHM = 50 +/- 10 nm,
%T >/= 65% @ peak		303007557
415BP45 52MM Camera Ring>/= OD3 out of band UV-1150nm>/= 45% peak (typical)22005455
415DCSP18.0 x 26.0 +/-0.25mm >/= 80% avg, 65% min 351-364nm152007839
415WB25 25.0 +0/-0.2mm>/= OD4 out of band UV-750nm>/= 50% peak142006988
420BP510.0 +0/-0.2mm>/= OD4 UV-1150nm>/= 40% peak63006945
425AF3025.0 +0/-0.2mm>/= OD5 UV-390nm & 450-1050nm>/= 65% in passband33006136
430AF3012.5 +0/-0.15mm>/= OD6 UV-403nm; >/= OD6 avg 480-1050nm>/= 55% avg 415-445nm93002015
435.8BP7.425.4 ±0.5mm>/= OD4 avg UV-1100nm>/= 75% peak182003023
435LP02EXTR60.0 ±0.4mm >/= 80% absolute, 85% avg 460-700nm12008966
440/532/633 TBDR25.7 x 36.0 +/-0.1mm >/= 60% avg 475-510nm; >/= 60% avg 560-590nm;
 >/= 60% avg 670-700nm		103004099
440DF4025.4 +0/-0.15mm>/= OD5 avg UV-1150nm; OD slope </= 1.5% >/= 60% peak83001734
445BP2038.0mm nominal>/= OD6 to 900nm>/= 65% peak73005678
450AF20 25.0 +0/-0.2mm>/= OD4 out of band UV-750nm>/= 60% peak172006990
450AF58 18.0 +0/-0.25mm>/= OD5 avg out of band UV-1150nm>/= 65% avg in passband32007862
450BP1012.7 +0/-0.13mm>/= OD4 out of band UV-FIR>/= 45% peak772004170
450BP1018.9 +0/-0.2mmOD4Peak transmission: >/= 35%;
Transmission uniformity: +/- 5% variation		212001653
450BP8 15.0 +0/-0.5mm>/= OD5 @ 400 & 500nm; OD 4 Integrated Blocking>/= 30% peak152005033
450CFSP 25.0 +0/-0.15mmT </= 1% avg 470-530 nm>/= 85% avg 310-440nm182003397
450DCLP0.625" +0/-0.005" >/= 80% avg 515-600; nm422006317
455AF7036.0 +0/-0.25mm>/= OD5 UV-405nm; >/= OD5 500-900nm>/= 70% peak53002802
460AF6026.5 +0/-0.2mm>/= OD2.4 @ 500nm;
>/= OD3 X-RAY-400nm & @ 505nm;
>/= OD4 510-710nm; >/= OD1.5 710-750nm		>/= 70% avg 440-480nm12009454
460BP30 12.5 +0/-0.25mm>/= OD4 UV-FIRns72004449
460BP30 12.7 +0/-0.1mm>/= OD5 UV-1200nmavg: 70±5% from CWL ± 10nm732002411
460DF1012.7 +0/-0.3mm>/= OD6 out of band 250-925nm>/= 50% peak23002770
465AF3050.0 ±0.25mm>/= OD4 avg UV-850nm>/= 75% peak13007666
465DF20 15.0 +0/-0.1mm>/= OD6 avg, OD5 min UV-1150nm>/= 60% peak22007677
470AF20 25.0 +0/-0.2mm>/= OD4 out of band UV-750nm>/= 70% peak212006991
470DF3025.0 +0/-0.2mm>/= OD6 499-750nm; >/= OD3 200-440nm & 750-1200nm>/=70% avg CWL± 13nm102009643
475AF406.35 +0/-0.2mm>/= OD5 avg, OD4 min 502-1100nm>/= 60% peak73006320
475AF40 12.7 +0/-0.1mm>/= OD4 UV-430nm; >/= OD5 avg 504-1070nm>/= 70% peak typical2192006499
475AF40 25.0 +0/-0.25mm>/=OD4 UV-430nm, >/=OD5 avg 504-1070nm70%</=Tpeak</=80%212004955
475AF40 6.35 x 36.0 +0/-0.2mm>/= OD4 UV-430nm; >/= OD5 avg 504-1070nm>/= 70% peak102007021
475DCLP 0.625" +0/-0.050" >/= 80% avg 490-530nm572007725
480BP70 62MM Camera Ring>/= OD5 250-435nm & 525-1100nm>/= 55% peak62008832
481AF306.0 +0/-0.1mmOD5 501-650nm;
>/= OD4 avg 651-1000nm; >/= OD4 UV-439nm		>/= 65% peak452006662
482ASPG 50.0 +0/-0.25mm>/= OD3 488-711nm>/= 80% 465-470nm; >/= 70% 471-479nm22004868
483/620CA1019.0 ±0.1mmOD5 300-1100 nmPeak transmission: >/= 40%82001269
485-555-650TBDR 36.0 x 25.7 +/-0.25mm  292003758
485-560
12.5 +0/-0.2mm>/= OD4 UV-450nm, 505-540nm & 585-700nm
DUALBAND EXCITATION		>/= 70% peak in 485nm band;
>/= 75% peak in 560nm band		42009494
485AF2025.0 +0/-0.15mm>/= OD5 out of band UV-1150nm; >/= OD5 @ 504nm>/= 75% peak72009663
485DRLP19.0 x 13.0 +/-0.1mm >/= 85% @ 488nm, P polarization;
T: >/= 75% @ 488nm, S polarization		32005059
488/568/647
20.0 +0/-0.2mm>/= OD6 @ 488nm, 568nm & 647nm
TRIPLE BAND EMISSION		>/= 70% avg, 55% min 510-520nm
>/= 75% avg, 65% min 595-610nm
>/= 75% avg, 65% min 705-745nm		233001828
488DCLP 25.0 ±0.1mm >/= 85% @ 488nm **12001790
488NB125.4 +0/-0.1mm>/= OD4 X-RAY-390nm & 585-FIR>/= 30% peak52009081
488NB10 25.0 ±0.1mm  62001624
490-575NM 35.0 +0/-0.5mmDUAL REJECTION BAND>/= 85% avg 32009432
490BP1018.9 +0/-0.2mmOD5 300-1100Peak transmission: >/= 40%;
Transmission uniformity: +/- 5% variation		52001508
490DF58 >/= OD3 UV-453 & 540-650 nm>/= 80% @ 488 & 514 nm82001408
492DF10 15.0 +0/-0.25mm>/= OD5 out of band UV-1100nm>/= 40% peak262009193
495ASP 25.0 ±0.2mm>/= OD5 503-640 nm>/= 80% avg 450-490 nm*52002748
495DF52 25.0 +0/-0.1mm>/= OD6 avg cut-off to 780nm>/= 75% peak142006719
500AELP25.0 ±0.1mm>/= OD8 @ 488 nm>/= 85% min, >/= 90% avg 510-850 nm102002737
500AF2060.0 +0/-0.15mm>/= OD3 UV-480nm & 520-1100nm>/= 75% in passband *13002117
500AF2512.7 +0/-0.1mm>/= OD5 525-1100nm>/= 75% peak33005218
500AF3050.0 +0/-0.1mm>/= OD5 UV-1200nm>/= 70% peak12007626
500AF50 50.0 +0/-0.1mm>/= OD5 avg UV-1200nm>/= 70% peak12007627
500BP10 1.000" +0/-0.020">/= OD5 out of band>/= 35%, </= 60% peak152007673
500DCLP 50.8 +0/-0.25mm >/= 70% 510-550nm; >/= 90% 650-750nm22009025
500DRLP 20.0 x 20.0 +/-0.2mm >/= 80% avg 505-750nm233002450
505AELP78.0 x 6.0 +0/-0.25mmOD5  UV-488nm @ 0° AOI;
>/= OD4 @ 488nm in s-polarization @ 30° AOI		>/= 85% avg Cut-on to 900nm42008837
505AF50 25.0 +0/-0.2mm>/= OD4 out of band UV-750nm>/= 75% peak162006992
505AF602.000" +0/-0.010"OD5 min @ 465 +6/-0nm;
>/= OD5 avg out of band UV-1200nm		>/= 75% peak53004860
505DRLP26.0 x 38.0 +0/-0.25mm >/= 80% avg, 65% min 513-558nm32007595
505DRSP 36.0 x 25.7 +0.1/-0.25mmEXTENDED REFLECTIVITY>/= 80% avg. 65% min, 445-490 nm192002493
505NB0.525.0 +0/-0.1mm>/= OD4 UV-1200nm>/= 35% peak93004675
508AELP14.0 +0/-0.1mm>/= OD6 300-497nm; >/= OD3 497-501nm>/= 80% avg 510-750nm53002499
508RDF1018.0 +0/-0.2mm >/= OD4 UV-1000nm>/= 60% peak182007176
510AELP6.0 x 78.0 +0/-0.25mmOD5  UV-488nm at 0° AOI;
>/= OD4 at 488nm in s polarization at 30° AOI		>/= 85% avg Cut-on to 800nm163007828
510ALP12.5 +0/-0.5mm>/= OD5, OD4 min UV-Cut-on>/= 80% peak13001309
510DF10IM25.0 +0/-0.15mm>/= OD5, out of band, 390 to 780 nm>/= 80% @ peak163004808
510DF201.000" ±0.010">/= OD5 UV-490nm; >/= OD4 530-650nm>/= 75% peak92009723
510LP12.5mm nominal>/= OD4 avg UV to Cut-on>/= 75% peak103007146
510RDF23 25.0 +0/-0.25mm>/= OD5 avg. UV-1150 nm>/= 70% avg in passband182003472
515AF2536.0 +0/-0.2mm>/= OD5 UV-492nm & 537-900nm;
>/= OD6 @ 405, 488, 561, 567, 635, & 785nm		>/= 73% peak43006631
515DF30 25.0 +0/-0.01mm>/= OD4 UV-1150nm>/= 70% peak82005479
515DRLP 12.7 +0/-0.25mm >/= 95% avg 525-800nm in p-polarization932009357
520AELP 25.0 +0/-0.1mm>/= OD5, UV-510; >/= OD3 @ 513nm>/= 80% avg 522-700nm22005863
520AF186.35 +0/-0.2mm>/= OD5 avg, OD4 min UV-480nm & 537-1100>/= 70% peak93006322
520AF2060.0 +0/-0.15mm>/= OD3 UV-500nm & 540-1100nm>/= 75% in passband *43002118
520AF4050.0 x 50.0 +/-0.3mm>/= OD4 avg UV-470nm & avg 570-1150nm>/= 75% peak22009530
520DF2025.0 +0/-0.2mm>/= OD6 400-495nm & 542-750nm;
>/= OD3 200-400nm & 750-1200nm		>/= 70% avg CWL ± 8nm142009673
520DF3018.0 +0/-2.0mm> OD6 449-487nm; > OD3 200-449,543-1200nm>/= 70% avg CWL ± 13nm62009669
520EFLP  25.0mm nominal>/= OD5 from UV to band>/= 80% average from 520-670 nm92001909
522AF336.0 +0/-0.1mm>/= OD8 in theory 546-610nm; >/= OD5 543-650nm;
>/= OD4 avg 651-1000nm; >/= OD4 UV-477nm		>/= 55% peak182008755
525AF50 49.0 x 50.0 +0/-0.2mm>/= OD5 out of band UV-1050nm>/= 75% avg in passband22008109
525DF40 25.0 ±0.1mm>/= OD4.4 568-630nm>/= 70% @ 525nm;
>/= 60% 515-535nm; >/= 50% 510-540nm		112007953
526BP15 12.7 ±0.2mm>/= OD3 UV-1000nm>/= 50% peak92002923
526DCLP0.625" +0/-0.005" >/= 80% avg 535-565nm962009724
528-633NM25.0 +0/-0.1mm>/= OD4 UV-505 & 555-595nm
DUAL BAND EMISSION		75% </= T Peak </=87% for each band392006095
528AF320.354" x 0.354" +0"/-0.010">/= OD4 560-1000nm>/= 75% peak652008671
528BP326.35 +0/-0.25mm>/= OD5 avg cut-off to 750nm;
>/= OD5.5 UV-700nm; >/= OD3 avg 750-1000nm		>/= 70% peak102008125
530ABP30 25.0 ±0.2mm>/= OD5 UV to 503 and 580 to 745 nm;
>/= OD3 @ 503 nm AOI 24° 		>/= 75% peak172002757
530AF2025.0 +0/-0.15mm>/= OD5 out of band UV-1150nm; >/= OD5 @ 549nm>/= 75% peak92009664
530AF50 25.0 +0/-0.2mm>/= OD4 out of band UV-750nm>/= 80% peak42006993
530BP1019.1 +0/-0.2mmOD4Peak transmission >/= 40%;
Transmission uniformity: +/- 5% variation		222001507
530BP30 0.500" x 0.500" +0"/-0.010"OD5 @ 500 & 565nm> 70% avg CWL +/- HBW/4212006770
530DF2025.4 +0/-0.25mm>/= OD5 avg UV-1200 nmT peak: >/= 70%32001448
530DF28 25.0 +0/-0.1mmOD5 avg, OD4 min UV to 504nm; OD4 min 560-825nm>/= 80% CWL +/- 10nm42006914
530DF30 10.0 +0/-0.1mm>/= OD6 @ 488 nm, >/= OD4 average from UV to 900 nm>/= 70% average from 520 to 540 nm1302001820
530DF30 12.7 x 12.7 +/-0.25mmOD5 UV to 500 and 565 to 750 nm 652001411
530DF30 25.4 +0/-0.25mmOD5 from UV to 500 and 565 to 750 nm>/= 70% avg CWL +/- HBW/412001412
530DF40 50.0 +0/-0.25mm>/= OD8 452-462nm, 483-493, 628-638 & 971-981; >/= OD4 UV-1150nm>/= 60% peak22007416
530NB0.6 25.0 +0/-0.1mm>/= OD4 UV-1200nm>/= 30% peak22001706
531DF25 15.0 +0/-0.5mm>/= OD6 avg UV-900nm>/= 60% peak62005163
532/561/659NM15.0 +0/-0.25mmREJECTION BAND 353005830
532/561/659NM15.0 +0/-0.25mm>/= OD2.5 @ 532nm; >/= OD2.0 @ 561nm; >/= OD2.0 @ 659nm
REJECTION BAND		 143005836
532-1064RB 25.0 +0/-0.3mm>/= OD5 @ 532nm; >/= OD4 @ 1064nm; >/= OD1.3 @ 355nm 142003860
532BP10 5.0 ±0.1mm>/= OD3 out of band 450-640nm>/= 80% peak202008612
532BP10 52MM Camera Ring>/= OD5 avg 200-1150 nm>/= 60% peak22002049
532BP3 12.7 +0/-0.1mm>/= OD1.7 537-620nm>/= 85% @ 532nm32008088
532RB15.0 +0/-0.25mm  243005837
532RB 11.8 +0/-0.2mm>/= OD4 @ 532nm; >/= 70% @ 635nm; Luminosity: >/= 65%452007316
532RB 12.5 +0/-0.2mm>/= OD4.5 @ 349-355nm; >/= OD3 @ 523-532nm & 1047-1064nm>/= 80% avg 450-480nm; >/= 70% avg 560-640nm412006905
532RB3025.0 +0/-0.25mm>/= OD3 at 532 nm>/= 60% avg., 350 to 510 nm;
>/= 80% avg., 560 to 900 nm		253005316
534AF406.0 +0/-0.1mm>/= OD5 UV-507nm; >/= OD4 avg 593-765nm>/= 70% peak22006663
535AF3018.0 +0/-0.25mm>/= OD5 avg, OD4 min UV-1100nm>/= 70% peak422007208
535AF4525.0 +0/-0.25mm>/= OD5 avg, OD4 min UV-504 nm.; >/= OD4 avg, OD3 min 585-1100 nm80% </= T peak </= 88%12002575
535AF45 12.7 +0/-0.1mm>/= OD5 avg, OD4 min UV-503nm; >/= OD4 avg, OD3 min 585-750nm>/= 76% peak1562006500
535AF6036.0 +0/-0.25mm>/= OD5 UV-490nm and 600-900nm>/= 70% peak43004646
535BP5046MM Camera Ring>/= OD4 avg UV-540nm & 650-900nm>/= 75% Tpeak222005953
535DF10055MM Camera Ring>/= OD5 avg, OD4 min UV-1050nm; >/= OD3 1050-1100nm>/= 70% peak32009084
535DF35 25.0 +0/-0.1mm>/= OD4 570-FIR45% </=Tpeak </=65%212006651
535DF5050.0 x 50.0 +/-0.3mm>/= OD4 avg UV-510 & 650-1150 nm>/= 75% Tpeak82003080
535DF5063.5 +0/-0.25mm>/= OD4 avg UV-510nm & 650-1150nm>/= 75% peak82009410
535DRLP 20.0 x 20.0 +/-0.2mm >/= 80% avg 540-750nm303002500
535WB35 69.5 +0/-0.25mm>/= OD4 UV-700nm; >/= OD1.3 avg 750-1150nm>/= 70% peak52006486
536AESP
25.0mm nominal>/= OD5 avg, OD3 min 540-1200nm
RAMAN CLEAN UP FILTER		>/= 75% @ 532nm62007712
538AF65 50.0 +0/-0.25mm>/= OD3 410-501nm & 582-711nm>/= 80% 511-559nm62004869
540AELP25.0 +0/-0.1mm>/= OD5, UV-531nm>/= 80% avg CUT-ON-700nm242005860
540BP1019.0mm nominalOD5 300-1100Peak transmission: >/= 40%72001443
540BP2525.0 +0.4/-0.2mm>/= OD5 510 & 570nm>/= 75% avg no dips below 60%12009702
540WB1018.2 +0/-0.4mm>/= OD5 300-1100nm>/= 40%262001444
545/760DB0.389" ±0.005"  12002340
545AF14012.0 +0/-0.25mm>/= OD4 avg., OD3 min., UV to 445 nm and 650 to 800 nm>/= 80% avg., 485 to 605 nnm503006511
545AF2525.0 +0/-0.1mm>/= OD5 @ 515nm; >/= OD4 380-525 & 592-750 nm>/= 75% peak62003902
545AF35 12.5 +0/-0.1mm>/= OD5 UV-522nm; >/= OD4 580-1100nm>/= 70% peak332006111
546BP12 12.5 +0.1/-0.25mmOD 4.7 @ 254 nm ; < OD 4.7 @ 436 nm;
< 0.02% @ 578 nm (OD 3.7); out of band		>/= 40% @ 546nm22002341
546BP30 32.0 +0/-0.25mm>/= OD5 avg., out of band, UV to 1150 nm>/= 70% @ peak42005108
546BP712.5 +0/-0.2mm>/= OD5 200-530nm, 570-1150nm>/= 60% peak173003188
549DF8 25.0 +0/-0.25mm>/= OD4 UV-1100nm>/= 75% peak202004195
550/650DBDR15.0 +0/-0.25mm >/= 80% avg., 560 to 590 nm and 650 to 800 nm13002855
550AF32 25.0 +0/-0.1mm>/= OD6 avg cut-off to 780nm>/= 75% peak42006722
550BP1012.5 +0/-0.25mm>/= OD4 out of band 180-1150nm>/= 70% peak42004336
550BP40 50.0 +0/-0.5mm>/= OD4 avg UV-1150nm>/= 65% peak12005302
550DF2025.0 +0/-0.2mm>/= OD6 400-526nm & 572-750nm;
>/= OD3 200-400nm & 750-1200nm		>/= 65% avg 542-558nm272009675
550DF4018.0 +0/-0.25mm>/= OD4 out of band UV-1100nm>/= 75% peak12008476
550DF80 18.0 +0/-0.25mm>/= OD4 out of band UV-1100nm>/= 75% peak52008475
551DCSP6.500" x 6.500" +/-0.015"  12002463
552BP186.5 x 6.5 +/-0.1mm>/= OD4 out of band UV-900nm>/= 75% peak102009488
555AELP 78.0 x 6.0 +0/-0.25mmOD5 measured UV-532nm @ 0° AOI;
>/= OD4 @ 532nm in s-polarization @ 30° AOI		>/= 85% avg Cut-on to 900nm112008838
555DF10  12.5 +0/-0.1mm>/= OD4 avg UV-1150nm>/= 75% peak382004444
555DF3815.0 +0/-0.5mm>/= OD5 UV-520nm; >/= OD6 avg 595-1150nm>/= 60% peak242008572
555DRLP1.000" +0.000/-0.010" >/= 75% min. 570-579nm; >/=90% min. 580-620nm;
>/=0.6% at 532 & 543.5nm		152007072
557.5DF2318.0 +0/-0.2mm> OD6 505-532nm; > OD3 200-505nm & 576-1200nm>/=74% avg CWL ± 9.5nm42009672
558DRLP 20.0 x 20.0 +/-0.2mm >/= 80% avg 563-750nm363002501
560AF202.990" +0/-0.005">/= OD3 UV-540 nm & 580-1100nm>/= 80% in passband13003174
560AF7049MM Camera Ring>/= OD5 200-504nm; >/= OD4 630-1050nm>/= 75% avg in transmission band32006877
560DF1012.5 +0/-0.25mm>/= OD5 out of band UV-1150nm>/= 75% peak73004942
560NB0.6 25.0 +0/-0.1mm>/= OD4 UV-1200nm>/= 30% peak42001705
562BP10  25.4 +0/-0.5mmOD5 outside passband>/= 35% to </= 60%32001898
564WB250 60.0 +0/-0.5mm  72004627
565AF23050.0 +0/-0.2mm>/= OD5 avg UV-1100nm>/= 65% avg 465-675nm63005364
565AF5036.0 +0/-0.2mm>/= OD5 UV-528nm & 602-900nm;
>/= OD6 @ 405,488,635, & 785nm		>/= 73% peak73007156
565ALP25.0 +0/-0.1mm>/= OD5 UV-559nm>/= 80% avg cut-on to 850nm253002689
565BP10 1.000" +0/-0.020"OD5 outside passband>/= 35% to </= 60%92008844
565DCSPEXTR 8.0 x 6.5 +/-0.2mm >/= 80% avg 430-550nm1462007833
565WB2050.0 ±0.25mm>/= OD4 avg UV-900nm>/= 80% peak23007667
568 NM25.0 ±0.2mm>/= OD5 @ 488nm & @ 647nm
LASER EXCITATION		>/= 80% @ 568nm113001824
570ABP10050.0 x 50.0 +/-0.3mm>/= OD4 avg UV-450 & 650-1150 nm>/= 75% Tpeak62003081
570BP1019.1 +0/-0.2mmOD5 300-1100Peak Transmission: >/= 40%;
Transmission Uniformity: +/- 5% variation		142001721
570DF10012.7 +0/-0.5mm>/= OD6 @ 675 nm 82001389
570DRLP 50.8 +0/-0.25mm >/= 90% 650-750nm22009024
570DRSPEXTR25.7 x 36.0 +/-0.1mm >/= 80% avg., 510 to 560 nm33007481
570WB35  69.5 +0/-0.25mm>/= OD4 UV-700nm; >/= OD1.3 avg 750-1150nm>/= 70% peak52006488
573BP350.495" +0/-0.010">/= OD4 UV-500nm & 600-1000nm>/= 60% peak32007938
575DCLPEXTR 0.625" +0/-0.050" >/= 80% avg 577-592nm152007727
575DF10  25.4 +0/-0.25mm>/= OD5 avg UV-1150nm>/= 70% peak32003808
575DF25 25.0 +0/-0.1mm>/= OD5 UV-550nm; >/= OD5 600-1200nm70% </=Tpeak </=92%152006654
575DF2625.4 +0/-0.25mm>/= OD5 UV-545nm and 610-750nm>/= 70% avg CWL +/-HBW/4112001239
575DRLP 36.0 x 25.7 +0.1/-0.25mm >/= 80% avg, 70% min, 590-750 nm82001566
575RDF30 25.0 ±0.1mm>/= OD4.4 598-602nm>/= 70% @ 575nm; >/= 60% 565-585nm;
>/= 50% 563-587nm		162007952
578BP11.541.0 +0.0/-0.5mm>/= OD4 out of band UV-1100nm>/= 70% peak73004995
580AF115 25.0 ±0.2mm>/= OD4 X-RAY-499nm; >/= OD2 @ 500nm; >/= OD3 670-750nm>/= 75% avg 540-630nm162009455
580AF2018.0 +0/-0.1mm>/= OD5 UV-536nm & 602-900nm>/= 75% peak603002549
580BP12.548.0 x 48.0 +/-0.25mm>/= OD4, out of band, 300 to 4000 nm>/= 50% @ peak73004826
580DF106.35 +0/-0.2mm>/= OD5 avg, OD4 min UV-560nm & 595-1100nm>/= 70% peak323006324
580DF19 25.0 +0/-0.2mm>/= OD6 400-556nm & 602-750nm; >/= OD3 200-400nm & 750-1200nm>/= 70% avg CWL ± 7.5nm122009642
580DF30 10.0 +0/-0.1mm>/= OD6 @ 488 nm, >/= OD4 average from UV to 900 nm>/= 70% average from 570 to 590 nm122003232
580DF30 54.0 x 49.0 +0/-0.5mm>/= OD5 out of band high side to 1100nm; >/= OD4 UV to low side>/= 75% peak22005069
583DF10 12.5 +0/-0.1mm>/= OD4 avg UV-1150nm>/= 75% peak202006386
585BP42 0.500" x 0.500" +0"/-0.010"OD5 @ 540 & 640nm> 70% avg lambda

 lower HBW + HBW/4		12006769
585DF10  12.5 +0/-0.1mm>/= OD4 avg UV-1150 nm>/= 75% peak152004445
585DF40  25.4 +0/-0.25mm>/= OD5 avg UV-1150nm>/= 70% peak12003809
585DF42 25.4 +0/-0.25mmOD5 from UV-540 and 640-750nm>/= 70% avg CWL +/- FWHM/422001366
586DF2018.0 +0/-0.2mm> OD6 535-562nm; > OD3 200-535nm & 603-1200nm>/= 70% avg CWL ± 8nm22009674
589.8NB1.525.4 +0/-0.2mm>/= OD4 500-700nm, Out of band>/= 60% peak33007680
590BP100.500" ±0.005">/= OD4 200-3000nm>/= 50% peak983007662
590BP1019.0 ±0.1mmOD5: 300-1100Peak transmission: >/= 40%72002264
590DF2015.0 +0/-0.25mm>/= OD5 avg, OD4 min UV-1150nm>/= 70% peak603006423
590DF35 25.0 +0/-0.1mm>/= OD5 UV-555nm & >/=OD4 625-720nm79% </=Tpeak </=92%282006652
590DF5020.0 +0/-0.25mm>/= OD5 UV-1150 nm>/= 75% @ peak12002336
595AESP 0.354" x 0.354" +/-0.010">/= OD4 602-800nm>/= 80% peak1782008638
595AF6018.0 +0/-0.2mm>/= OD5 avg UV-559nm & >/= OD4 665-835nm>/= 75% peak in passband32004469
595BP10 25.4 +0/-0.5mmOD5 outside passband>/= 35% to </= 60%22002246
595DCSP25.7 x 36.0 +/-0.25mm >/= 80% avg 290-370nm223001386
595DF10  25.4 +0/-0.25mm>/= OD5 avg UV-1150nm>/= 70% peak62003807
595NB0.725.0 +0/-0.1mm>/= OD4 UV-1200nm>/= 30% peak82001704
600-850DB86mm Tiffen Ring.0>/= OD3 avg out of band UV-1200nm>/= 65% avg in both passbands23006528
600AF100-ETBR 49.0 x 50.0 +0/-0.2mm>/= OD5 out of band UV-1050nm>/= 75% avg in passband52007037
600AF4036.0 +0/-0.25mm>/= OD5 UV-571nm; >/= OD5 630-900nm>/= 78% peak13002801
600AF40 36.0 +0/-0.2mm>/= OD5 @ 780nm; >/= OD5 UV-900nm>/= 78% peak22008924
600BP1025.4 +0/-0.5mmOD5 outside pass band>/= 35% & </= 60% peak72003639
600BP40 50.0 +0/-0.5mm>/= OD4 avg UV-1150nm>/= 65% peak12005303
600CFSP25.0 +0/-0.15mmT </= 1% avg 620-790 nm>/= 85% avg 400-585 nm152003398
600DCLP15.0 +0/-0.25mm >/= 80% avg., 635 to 800 nm23002856
600DCLP 12.7 +0/-0.25mm >/= 95% avg 625-800nm in p-polarization862009356
602.5AF3560.0 +0/-0.15mm>/= OD3 UV-575nm & 630-1050nm>/= 80% in passband23002822
605AELP 50.0 +0/-0.25mm>/= OD3 410-599nm>/= 80% 613-711nm22004870
605AF4036.0 +0/-0.2mm>/= OD5 UV-574nm & 637-900nm;
>/= OD6 @ 405, 488, 532, 561, & 785nm		>/= 78% peak63006628
605AF9049MM Camera Ring>/= OD5 200-538nm; >/= OD4 690-1050nm>/= 75% avg in transmission band22006878
605BP5050.0 x 50.0 +/-0.3mm>/= OD4 avg UV-510 & 650-1150 nm>/= 75% Tpeak132003082
605BP5063.5 +0/-0.25mm>/= OD4 avg UV-510nm & 650-1150nm>/= 75% peak62009409
605DF3025.0 +0/-0.1mm>/= OD6 avg UV-1150nm>/= 75% peak53007562
605DRLP 20.0 x 20.0 +/-0.2mm >/= 80% avg 611-750nm273002502
607.5DRLP17.0 ±0.1mm >/= 80% 615-625nm203001794
610ALP12.5 +0/-0.5mm>/= OD5, OD4 min UV-Cut-on>/=75% peak13001312
610DCSP25.0 +0.0/-0.25mm >/= 75% avg 400-600nm103003391
610DF106.35 +0/-0.2mm>/= OD5 avg, OD4 min UV-595nm & 630-1100nm>/= 70% peak53006325
610DF12 25.0 ±0.2mm>/= 4.4 OD >/= 45% avg 605-615 nm;
 >/= 70% @ 610 nm		182001858
610DF20 25.4 +0/-0.25mmOD5 from 330-570 and 633-700 nm 172001367
610DMSP 1.000" +0/-0.015"  62002646
610WB1018.0mm nominal>/= OD5 300-1100 nm>/= 30%53007744
612AF75 75.0 +0/-0.2mm> OD5 UV-555nm & 680-1100nm> 60% in passband12006163
612BP10 12.7 +0/-0.3mm>/= OD6 out of band 250-925nm>/= 65% peak352007088
612DF10 12.5 +0/-0.1mm>/= OD4 avg UV-1150nm>/= 75% peak62006388
612NB312.7 +0/-0.2mm>/= OD5 avg, OD3 min UV-1150nm>/= 60% peak43007148
613AF5560.0 +0/-0.5mm>/= OD2 avg 200-400nm;
>/= OD3 avg 400-545nm, 660-750nm & 1100-1200nm;
>/= OD5 avg 750-1100nm		>/= 90% avg 585-640nm 22005081
614DF10 12.5 +0/-0.1mm>/= OD4 avg UV-1150nm>/= 75% peak72006684
614RDF1018.0 +0/-0.2mm>/= OD4, UV-1000 nm>/= 60% at peak22001457
615-65512.7 +0/-0.2mmPOLARIZING BEAMSPLITTER>/=90% avg., 80% min., in P-Plane, 615-655 nm12008209
616-48 EM45.0 ±0.15mmAOI 0 ± 10°; >/= OD6 441-505nm;
>/= OD4 200-440nm, 506-579nm & 658-800nm		AOI 0° >/= 70% avg, >/= 50% absolute 597-635nm72009231
620AF4015.0 +0/-0.5mm>/= OD6 avg, OD5 min 200-580nm & 655-1100nm>/= 70% 604-636nm73003346
620DF3025.0 ±0.1mm>/= OD5 300-590 and 650-850 nm>/= 75% avg. 60% min. 610-630 nm62001793
620DRLP6.7 x 11.0 +0/-0.2mm>/= OD5 UV-570nm>/= 80% avg 660-1200nm702009639
622AF45 12.5 +0/-0.2mm>/= OD6 avg, OD5 min UV-580nm & 658-820nm>/= 75% cut-on +2nm to cut-off -2nm162009383
623DF2818.0 +0/-0.2mm> OD6 566-593nm; > OD3 200-566nm & 645-1200nm>/= 75% avg CWL ±12nm32009676
625AF3018.0 +0/-0.25mm>/= OD5 avg, OD4 min UV-1100nm>/= 70% peak22007206
625BP901.000" x 2.000" +/-0.030"  142005351
625DF2012.5mm nominal>/= OD4 avg UV-1150nm>/= 75% peak33007826
625DF90 0.900" x 3.340" +/-0.030"  22005838
630BP1019.0 ±0.1mmOD5 300-1100nm>/= 40% peak;
Tranmission uniformity: ± 5% variation		342001722
630BP3032.0 +0/-0.25mm>/= OD4 avg UV-1100nm>/= 70% peak53006257
630CFSP12.7 +0/-0.25mmOD4 avg 675-700nm> 65% avg 420-575nm212004794
630DCLPEXTR 0.625" +0/-0.050" >/= 80% avg 651-659nm1192007730
630DCSP 1.000" +0/-0.010" 50% @ 630nm nominal; > 80% 530-610nm72006767
630DF3025.0 +0/-0.1mm>/= OD5 UV-600nm & 670-850nm>/= 75% peak223002687
630WB12518.0 +0/-0.25mm>/= OD4 avg., OD3 min., out of band, 350 to 800 nm>/= 80% avg., 600 to 670 nm43004536
632DF45 15.0 +0/-0.5mm>/= OD6 avg UV-595nm; >/= OD5 675-1150nm>/= 60% peak32008272
632NB0.8 25.0 +0/-0.1mm>/= OD4 UV-1200nm>/= 30% peak172001703
633-976-1074RB 12.7 ±0.2mm>/= OD3 @ 633nm & @ 976nm & @ 1064nmOptimized for most neutral color222009266
633BP1010.0 ±0.13mm> OD4 350-900nm>/= 75% 631-635nm642006981
633BP10 12.5 x 50.0 +0/-0.25mm>/= OD4 UV-1200nm>/= 70% peak222002139
635BP2012.7 +0/-0.25mm>/= OD4 544-596nm & 679-770nm>/= 85% peak,
with </= 4% variation from 630 to 640nm		43004812
635BP4910.0 +0/-0.25mm>/= OD4 avg, OD3 min 670-700nm>/= 80% 630-645nm;
T Slope: < 1%/nm over the transmission range		202006949
635DCLP 0.625" ±0.004" >/= 80% avg 663nm to 677nm192006314
635DF15 15.0 +0/-0.1mm>/= OD5 min, OD6 avg UV-1150nm>/= 65% peak22007867
640AF50 25.0 +0/-0.2mm>/= OD5, UV-590 nm & 680-1100 nm 112006177
640BP11.325.4 ±0.5mm>/= OD4 avg UV-1100nm>/= 75% peak32003021
640DF19 25.0 +0/-0.2mm>/= OD6 400-615nm & 662-750nm;
>/= OD3 200-400nm & 750-1200nm		>/= 75% avg ± 7.5mm222009629
640DF2025.4 +0/-0.25mm>/= OD5, UV-1200 nm*T peak: >/= 70%42001441
640DF3525.0 +0/-0.1mm>/= OD5 avg, OD4 min UV-610nm;
>/= OD4 680-775nm		>/= 75% avg CWL +/- 12nm32001355
640DRLPEXTR 1.0 ±0.01mm </= 1% @ 488nm; </= 2% 510-595nm;
</= 1% @ 605nm; >/= 80% avg 670-730nm		12003997
640EFSP 20.0 +0/-0.25mm>/= OD5 670-1150nm>/= 65% avg 480-630nm; >/= 72% 590-600nm32007362
645AF7575.79 +0/-0.25mm>/= OD5 UV-1150nm; >/= OD5 @ 599nm>/= 80% peak33007135
645BP506.0 x 32.0 +0/-0.25mm>/= OD4 avg., UV to 560 and 760 to 1100 nm>/= 0.7% avg., </= 2 % avg., 635 to 655 nm123002279
645BP50 W/AR6.0 x 32.0 +0/-0.25mm>/= OD4 avg., UV to 560 and 760 to 1100 nm>/= 0.7% avg., </= 2% avg., 635 to 655 nm103003466
647 LASER EXCITATION25.0 ±0.2mm>/= OD5 @ 488nm & @ 568nm>/= 80% @ 647nm123001825
647/740DBDRSPP25.0 x 36.0 +0/-0.25mm >/= 80% avg., 485 to 495, 530 to 550,
590 to 620, and 670 to 705 nm in P-Plane		43005955
650BP1019.0 ±0.1mmOD5 300-1100Peak transmission: >/= 40%112001256
650BP15050.0 +0.02/-0.2mmOD5 UV-1150nm>/= 75% avg no dips below 60%32009711
650CFSP  50.0 x 50.0 +/-0.25mm</= 1% avg., 675-850 nm>/= 85% avg. 400-64022003402
650DRLP 26.0 x 38.0 +0/-0.25mm >/= 80% avg 668-723nm32007597
650LP 0.445" +0/-0.005">/= OD3 avg 625-635nm; >/= OD2 635-640nm> 85% avg 670-730nm;
> 85% avg 730-850nm; > 75% avg 653-670nm		272006282
650SP6.0 +0/-0.25mm>/= OD4 avg 675-800nm>/= 85% avg 400-635nm193002522
652DF1515.0 x 17.5 +/-0.25mm>/= OD5 675-900nm>/= 75% peak73001193
652EFLP 18.0 ±0.13mm> OD7 @ 632.8nm> 50% @ 655nm; >/= 75% 665-850nm72006983
655AF825.4 +0/-0.2mm>/= OD5 UV-629nm; >/= OD4 avg 680-900nm>/= 70% peak52009632
655DF30 25.0 +0/-0.1mm>/= OD4 UV-1150nm70% </=Tpeak </=92%232006657
656.3BP11.51.000" +0/-0.005">/= OD4 UV-FIR>/= 50% peak172007226
656NB325.0mm nominal>/= OD4 UV-1150nm>/= 60% peak103005776
658AF3018.0 +0/-0.25mm>/= OD4 380-800nm>/= 80% peak453001361
660AF15036.0 +0/-0.2mm>/= OD5 UV-574nm & 747-900nm;
>/= OD6 @ 405, 488, 532, 561, 567, & 785nm		>/= 78% peak23006633
660AF202.990" +0/-0.005">/= OD3 UV-640 nm & 680-1100nm>/= 80% in passband23003179
660AF759.2 x 12.7 +/-0.13mm>/= OD5 UV-615nm; >/= OD4 745-1100nm>/= 75% avg, in passband22008865
660WB406.0 x 32.0 +0/-0.25mm>/= OD5 out of band UV-1100nm>/= 0.7% avg, </= 1.0% 645-665nm132009187
661DF16 0.500" +0/-0.010">/= OD6 530-640nm; >/= OD4 676-830nm>/= 70% 657-665nm; 50%T: 653 +/- 2nm & 669 +/- 4nm162007831
661DF16 6.35 +/-0.1 x 20.0 +/-0.2mmOD5.7 490-640 nm (up from OD5), OD4 676-730 nm>/= 70% from 659 to 663 nm112001365
665-720 12.7 +0/-0.2mmPOLARIZING BEAMSPLITTER>/= 90% avg in p-polarization 665-720nm203002983
665DRLP25.4 +0/-0.7mm >/= 85% avg., 675 to 800 nm113003224
669.3BP225.4 +0/-0.2mm>/= OD4 UV-1150nm>/= 60% peak33007806
670BP1062MM Camera Ring>/= OD5 avg, OD4 min UV-1150nm>/= 70% peak13003238
670DF30 10.0 x 56.0 +0/-0.2mm>/= OD5 @ 635 to >/=OD4 @ 642nm;
>/= OD4 700-1100nm; >/= OD3 1100-1125nm		Peak T: >/= 80% avg over a 20 nm region of the passband
no dips in the passband to </=60% absolute 		112006065
670DF4018.0 +0/-0.1mm>/= OD5avg, OD4 min 200-572nm,; >/= OD5 573-638nmTpeak >/= 80%103001113
670DF40 25.0 +0/-0.25mm>/= OD5 lowside, UV-630 nm>/= 80% at peak122001372
670DF850.354" x 0.354" +/-0.010">/= OD4 (subject to WR92l) UV-595nm; >/= OD4 avg 760-1000nm>/= 60% peak82008116
670DF85 0.495" +0/-0.010">/= OD4 (WR92l) UV-595nm; >/= OD4 avg 760-1000nm>/= 60% peak82008117
670DRLP22.0 x 14.0 +0/-0.5mm >/= 85% avg 675-695 nm132001924
670DRLP 36.0 x 25.7 +0.1/-0.25mm >/= 80% avg, 75% min 680-750 nm152001564
670EFLP 6.35 +/-0.10 x 20.0 +/-0.2mmOD4.5 480-640 nm>/= 70% from 673-730nm592002779
670RB35 12.5 ±0.2mm  492006040
670WB35 69.5 +0/-0.25mm>/= OD4 UV-700nm>/= 75% peak102006487
671NB0.9 25.0 +0/-0.1mm>/= OD4 UV-1200nm>/= 40% peak42001702
672WB3525.0 +0/-0.25mm>/= OD4 out of band, UV-1150 nm>/= 70% @ peak82001869
675DF1028.25 x 10.75 +/-0.25mm>/= OD5 out of band UV-900nm>/= 75% peak232009015
675DF158.5 x 8.0 +0/-0.25mm>/= OD5  UV-655nm & 700-900nm>/= 37% peak22006384
675DRLP0.625" +0/-0.050" >/= 80% avg 675-700nm92009630
675LP 1.000" +0/-0.004">/= OD5 325-650nm>/= 50% @ 675nm; >/= 50% avg 680-1000nm162008181
678AESP25.4 +0/-0.1mm>/= OD5 691-880nmT: 35%-45% avg 635-678nm53006761
678AESP15.0 x 55.0 +0/-0.2mm>/= OD5 691-880nm>/= 85% avg 635-675nm33007250
678DF2012.5 +0/-0.5mm>/= OD4 avg., out of band, UV to 2200 nm>/= 35% @ peak53006867
680AF202.990" +0/-0.005">/= OD3 UV-660 nm & 700-1100nm>/= 80% in passband23003180
680AF4025.0 +0/-0.25mm>/= OD5 UV-650nm>/= 80% peak82004455
680BP3050.0 +0.02/-0.2mm>/= OD5 644 & 716nm>/= 75% avg no dips below 60%22009712
682DF2818.0 +0/-0.2mm> OD6 625-652nm; > OD3 200-625nm & 706-1200nm>/= 75% avg CWL ± 12nm262009677
682DF3018.0 ±0.1mm> OD6 625-652nm; > OD3 200-625nm & 706-1200nm>/= 75% avg CWL ± 12nm52006937
685DCLP 1.000" +0/-0.010" 50% @ 685nm nominal; > 80% 700-830nm42006768
685DF2210.0 +0/-0.25mm>/= OD4 avg 300-1150nm>/= 75% avg 677-693nm; > 50% @ 693nm122006950
685DF30  25.4 +0/-0.25mm>/= OD4 UV-1150nm>/= 70% peak12001646
685DF50 0.366" +0/-0.010">/= OD4 UV-1100nm >/= 70% peak402007277
685DMLP15.0 x 120.0 +0/-0.2mm >/= 80% avg 690-730nm22006066
690AF120 6.35 +0/-0.25mm>/= OD5 UV-620nm; >/= OD4 790-1150nm>/= 75% avg in passband932007878
690BP20 6.5 x 6.5 +/-0.2mm>/= OD4 out of band UV-860nm>/= 70% peak72007834
690WB1018.0 ±0.2mm>/= OD5, 300-1100 nm; >/= 40%72001725
691.1NB150.0 +0/-0.15mm>/= OD4 out of band UV-1150nm>/= 40% peak22008501
695AF55 25.0 +0/-0.1mm>/= OD5 avg UV-660nm OD4770-964nm>/= 75% avg in passband (minimal dips on lowside)42005005
695DF40 1.000" ±0.010">/= OD5 5 330-650nm & 5 740-900nm>/= 80% avg CWL ± 0.25HBW102005162
695RDF5525.0 +0/-0.1mm>/= OD5 out of band UV-1000nm>/= 75% avg in passband32001844
697AF4069.5 +0/-0.25mm>/= OD5 avgerage>/= 75% peak22007302
700AF2060.0 +0/-0.15mm>/= OD3 UV-680nm & 720-1100nm>/= 80% in passband13002121
700BP30 32.0 +0/-0.25mm>/= OD4 avg UV to 1100nm>/= 70% peak62006617
700BP40 50.0 +0/-0.5mm>/= OD4 avg UV-1150nm>/= 75% peak42005304
700CFLP25.0 +0/-0.5mm>/= 1% avg, 5% absolute 560-662nm>/= 80% avg 770-2200nm232008428
700CFSP25.0 +0/-0.1mm >/= 85% avg, 75% min 450-675nm162005889
700CFSP 15.0 +0/-0.1mm >/= 85% avg 450-675nm12004695
700DCLP12.5 +0/-0.15mm ns% 760-1600nm (Target 85% avg random)152009229
700DCSP25.0 +0/-0.15mm ns % 450-650nm (Target 85% avg random)172009414
700RDF10050.8 +0/-0.25mm>/= OD8 483-493nm, 628-638nm & 971-981nm70% min Cut-on to 700nm;
>/= 75% avg Cut-on to Cut-off		32009023
703BP10 1.000" +0/-0.005">/= OD4 UV to FIRPeak transmission: >/= 45%92001474
704BP101.000" ±0.010">/= OD5 avg 200-2500nm>/= 50% peak222001302
704WB401.000" ±0.010">/= OD5 avg. 200-2500 nmPeak transmission: >/= 50%392001837
705DF30 10.0 x 56.0 +0/-0.2mm>/= OD5 635-642nm; >/= OD4 735-1150nmPeak T: >/= 80% avg over a 20 nm region of the passband,
no dips in the passband to </=60% absolute		92006064
707DRLPEXTR 6.5 x 8.0 +/-0.2mm >/= 80% avg 720-900nm902007384
708BP40 12.7 +0/-0.25mm>/= OD4 out of band UV-FIR>/= 50% +/- 5% peak;
0.04-0.10% to occur in the range 670 +/-2nm		22007668
710AF3050.8 +0/-0.15mm>/= OD5 from UV to 0.985 x cut-on;
>/= OD6 @ 680nm; >/= OD4 763-1150nm		>/= 75% peak22009278
710DF40 25.4 +0/-0.25mm>/= OD5 UV-1200 nmT peak: >/= 70%52002495
710DRLP 25.0 ±0.1mm >/= 80% avg 740-800nm (see notes)122005043
712NB1.025.0 +0/-0.1mm>/= OD4 UV-1200nm>/= 40% peak52003898
720BP407.0 x 82.0 +0/-0.2mm>/= OD4 avg out of band UV-1050nm>/= 80% peak153007720
725DCLP50.0 +0/-0.15mm ns % 760-1600nm (Target 85% avg random)92008409
730AF3038.0mm nominal>/= OD6 avg UV-900nmns83004522
730BP30 6.5 x 6.5 +/-0.2mm>/= OD4 avg out of band UV-1000nm>/= 70% peak2782007835
735AF5025.0 +0/-0.2mm>/= OD5 UV-685nm & 775-1100nm>/= 60% in passband62006705
740AGSP12.5 +0/-0.25mm>/= OD5, 755 to 1000 nm>/= 75% @ 735 nm13004379
740AGSP10.0 +0/-0.25mm>/= OD5, 755 to 1000 nm>/= 75% @ 735 nm23004380
740ASPG25.0 x 32.0 +0/-0.25mm>/= OD5 755-1000nm>/= 75% @ 735nm12007779
740CA1019.0 ±0.1mmOD5 300-1100nmPeak transmission: >/= 40%32005674
750BP70 50.0 +0/-0.5mm>/= OD4 avg UV-1150nm>/= 75% peak12005305
750DF8 15.0 +0/-0.5mm>/= OD6 avg, OD5 min 250-1150nm>/= 60% peak82008271
753AESP25.4 +0/-0.15mm>/= OD5 769-965nm>/= 85% avg 735-750nm173002225
753AESP15.0 x 55.0 +0/-0.2mm>/= OD5 769-965nm>/= 85% avg 735-750nm103007251
755NB1.1 25.0 +0/-1.0mm>/= OD4 UV-1200nm>/= 40% peak32003979
766NB0.3 25.4 +0/-0.25mm>/= OD4 UV-1000nmns12004122
780BP1012.5 +0/-0.5mm>/= OD4 avg., out of band, UV to 2200 nm>/= 35% @ peak113006868
780DF60 1.000" ±0.010">/= OD4, 840-1000 nm, >/= OD4.7 minimum 330-650 nm>/= 80% average CWL +/- 0.25 HBW122003514
780RB10025.4 +0/-0.15mm>/= OD6 730 ±10nm to 830 ±10nm>/= 60% avg typical 445-480nm
>/= 80% avg typical 590-680nm
>/= 75% avg typical 880-1300nm		123003011
781DF625.0 +0/-0.1mm>/= OD3 UV-1100nm;
>/= OD4 @ 690nm, 800nm, 815nm & 830nm		>/= 75% 780-782nm32009592
784DF1612.5 +0/-0.1mm>/= OD5 UV-765nm; >/= OD5 avg 805-1100nm>/= 82% peak62007749
785AF3050.0 +0/-0.1mm>/= OD5 600-759nm & 844-1000nm>/= 80% avg in passband23002222
785BP1512.5 +0/-0.15mm>/= OD4, out of band, UV to 1150 nm>/= 75% @ peak253004170
790AF4069.5 +0/-0.5mm>/= OD5 UV-750nm; >/= OD5 avg, OD4 min 850-900nm>/= 75% peak52009190
800BP206.5 x 6.5 +/-0.1mm>/= OD4 out of band UV-945nm>/= 75% peak1352009489
800BP70 50.0 +0/-0.5mm>/= OD4 avg UV-1150nm>/= 75% peak12005306
800CFSP25.0 +0/-0.15mm%T </= 1% avg 830-1030 nm>/= 85% avg 400-785 nm, >/= 70% on first dip (near edge)442003401
801NB1.3 25.0 +0/-1.0mm>/= OD4 UV-1200nm>/= 40% peak22003978
806BP939.5 ±0.1mm>/= OD4 avg, OD2 min OD 300-1260nm>/= 65% peak12009513
808DF207.4 +0/-0.1mm>/= OD5 avg, OD4 min UV-1150nm>/= 75% peak42006441
810AGLP20.0 +0/-0.25mm>/= OD5 avg, OD4 min UV-780nm>/= 80% avg Cut-on to 1200nm123006276
810BP30 32.0 +0/-0.25mm>/= OD4 avg UV to 1100nm>/= 70% peak22006618
810WB100 25.4 ±0.4mm>/= OD3 350-1150nmAOI 0 to 15°; >/= 70% 790-830nm, T variation </= 5%32008872
812DF2050.0 +0/-0.25mm>/= OD4, out of band, UV to 1150 nm>/= 75% @ peak33005801
812DF20 25.0 +0/-0.20mm>/= OD4, out of band, UV to 1150 nm>/= 75% @ peak132009485
815ALP 25.4 +0/-0.15mm>/= OD4 avg. OD2 min. from 350 to 0.95 x Cut-on wavelength>/= 85% avg 830-930nm82007047
818BP4138.1 +0/-0.5mm>/= OD4 out of band 350-1150nm>/= 70% 805-811nm @ 0° to 22.5° AOI53001816
818BP41 30.0 +0/-0.25mm>/= OD4 out of band 350-1150nm>/= 70% 805-811nm @ 0° to 22.5° AOI222007696
820DRLP12.5 x 12.5 +0/-0.25mm >/= 80% avg., 830 to 1000 nm53006731
827NB1.325.0 +0/-0.1mm>/= OD4 UV-1200nm>/= 40% peak62007999
830AF4069.5 +0/-0.25mm>/= OD5 out of band UV-900nm>/= 70% peak12009019
830ASP6.3 ±0.2mm>/= OD5 876-1100nm>/= 80% avg 650-810nm; >/= 70% avg 600-650nm93006985
835LP 20.0 +0/-0.25mm>/= OD3 200-825nm>/= 80% 850-2100nm182009127
842AF6560.0 +0/-0.15mm>/= OD5 UV-800nm & 905-1100nm>/= 60% peak22007099
850CFSP 25.0 +0/-0.15mm%T </= 1% avg 880-1100 nm>/= 85% avg 425-835 nm, >/= 70% on first dip (near edge)152005991
850NB1.425.0 +0/-1.0mm>/= OD4 UV-1200nm>/= 40% peak92003897
873NB1.5 25.0 +0/-0.1mm>/= OD4 UV-1200nm>/= 40% peak22008099
875DRLPEXTR6.5 x 8.0 +0/-0.2mm >/= 80% avg 900-1000nm1412009490
880BP12.548.0 x 48.0 +/-0.25mm>/= OD4, out of band, 300 to 4000 nm>/= 50% @ peak23004830
883.5NB7.0 20.0 +0/-0.2mm>/= OD4 avg UV-1300nm>/= 70% peak122009055
900ALP7.8 ±0.2mm>/= OD5 UV-850nm>/= 80% avg 930-1200nm243006984
900CFSP  50.0 x 50.0 +/-0.25mm</=1%T avg 940-1150nm>/= 85% avg 425-885nm; >/=70% on 1st dip (near edge)72003412
904BP35 7.0 x 7.0 +/-0.2mmOD3 from UV-1100 nmPeak transmission >/= 79%102002348
905BP24 25.4 +0/-0.1mmOD4 x-ray to 1200nm>/= 75% peak32009194
905BP30 56.0 +0/-0.25mm>/= OD4 UV-1500nm>/= 75% peak32002316
905BP50 9.9 +0/-0.1mm>/= OD3 UV-1200 nm & @ 850 nm>/= 70%1012001979
921NB1.7 25.0 +0/-1.0mm>/= OD4 UV-1200nm>/= 40% peak62007856
950CFSP    50.0 x 50.0 +/-0.25mm</=1%T avg 980-1200nm>/= 85% avg 450-930nm; >/=70% on 1st dip (near edge)12003655
972NB1.925.0 +0/-0.1mm>/= OD4 UV-1200nm>/= 40% peak72004034
977DF2712.0 x 12.0 +0/-0.25mm>/= OD4 200-945nm & 1010-1570nmns73005117
980DF512.0 x 12.0 +0/-0.25mm>/= OD4 UV-962nm & 978-1550nm>/= 80% peak73004528
AMBER FILTER43MM Camera Ring>/= OD4 absolute 250-520nm;
>/= OD4 absolute 730-755nm;
 >/= OD5 absolute 755-1100nm		40 to 65% nominal to occur 570 ± 5nm63002074
AR WINDOW 12.5 +0/-0.25mm  2492002214
AR WINDOW25.0 ±0.25mm  52006694
AR/BG3/AR 25.4 +0/-0.2mm >/= 93% peak @ 355nm; </= 1% @ 532nm182008257
ARWINDOW257NM 0.2900" ±0.005" >/= 98.5% @ 257nm542005871
BC-02(530DCLP)15.0 +0/-0.2mm  202001622
BC-04 (APPROX 614DCLP)15.0 +0/-0.2mm 80% min @ 632.8 nm262003252
BG25 12.7 +0/-0.2mm  722002250
BG350.0 x 50.0 +0/-0.25mm3MM THICK 53004006
BK7 12.0 x 18.2 +0/-0.3mm  182002435
BP0450.0,030.0,025.00,000.00SB25.0 +0/-0.1mm>/= OD6 UV-400 nm & 480-1150 nm; >/= OD5 @ 410 nm & 477 nm>/= 65% peak102008911
BP0450.0,058.0,025.00,000.00OB25.0 +0/-0.1mm>/= OD4 UV-420 nm & >/= OD3 510-650nm70% </= Tpeak </= 80%12006120
BP0550.0,010.0,019.00,000.00SB19.0 ±0.1mmOD5 300-1100 nmPeak transmission: >/= 40%222001454
BP0565.0,050.0,050.80,000.00SB50.8 +0/-0.25mm>/= OD5 avg UV-1200nm; >/= OD6 @ 488nm & 514.5nm>/= 75% peak12004052
BP0568.0,020.0,025.00,000.00PB25.0 +0/-0.1mm>/= OD6 UV-535 nm & 601-700 nm;
>/= OD5 @ 541 nm & 595 nm; >/= OD4 @ 750 nm		>/= 85% peak102008905
BP0610.0,020.0,025.00,000.00PB25.0 +0/-0.1mm>/= OD6 UV-576 nm & 645-700 nm;
>/= OD5 @ 582 nm & 639 nm; >/= OD4 @ 750 nm		>/= 85% peak62008906
DAPI/FITC DICHROIC 36.000 x 25.700 +/-0.250mm >/= 80% avg, no dips below 65% 510-600 nm162002574
DLP0599-0611,0420-0592,015.240.625" +0/-0.050" >/= 80% avg 599-611nm292007728
DLP0650-0800,0505-0620,025.0025.0 ±0.1mm  32005042
EXCITATION ASSEMBLY, 420SP0mm nominal  13003105
FRONT SURFACE
DIELECTRIC MIRROR		7.0 x 11.0 +/-0.25mm  362006860
FRONT SURFACE MIRROR 12.7 x 25.4 +/-0.1mm  62002388
GG42012.7 +0/-0.2mm  1293002914
GG435 0.500" +0/-0.008"3MM THICK 722003158
GG49521.0 +0.5/-0mm>/= OD5 350-460nm>/= 90% avg, 85% min 515-750nm53001516
GREEN ATTENUATOR25.4 +0/-0.2mm >/= 85% avg 400-490nm;
</= 10% avg 500-565nm; >/= 85% avg 580-700nm		63007017
HALF MIRROR 0.500" x 0.500" +0"/-0.010"  62007830
HOT MIRROR35.0 +0/-0.25mm >/= 92% avg 425-675nm82007018
HOT MIRROR25.0 +0/-0.1mm >/= 90% avg 425-675nm33004275
HOT MIRROR 10.0 x 10.0 +/-0.1mmSQUARE= 50% @ 730nm (nominal); >/= 92% avg 425-675nm1432005353
KG232.0 +0/-0.25mm  123001394
KG2 10.0 +0/-0.25mm4MM THICK 342005777
KG3 15.0 ±0.2mm2MM THICK 882003140
KRRB/V3 15.0 +0/-0.25mm>/= OD2.5 @ 520.8nm & @ 530.9nm;
>/= OD2 @ 568.2nm & @ 647.1nm		>/= 30% peak273006229










]]>http://bjomejag.squarespace.com/journal/rss-comments-entry-967255.xmlUsing Nebula filters to Elliminate SkyglowRobert Johnson, D.Sc.Mon, 19 Mar 2007 11:38:30 +0000http://bjomejag.squarespace.com/journal/2007/3/19/using-nebula-filters-to-elliminate-skyglow.html107475:952836:966629For astronomers viewing distant objects from the earth, the common problem is the light emitted by the earth. In the visible, most of this light is a result of technology. The biggest offender is the outside lighting of roads and parking areas.

The common light for these outside lighting situations is the low pressure Mercury and Sodium lamps. Fortunately, these lamps concentrate most of their energy at specific emission lines. The most problematic lines are at 436,546, 577, 589nm. Omega Optical, Inc. and others have designed filters that selectively attenuate these lines, while passing most of the remaining visible spectrum.

The light from these earth bound sources is radiated off into space. It is the particles of dust and debria, as well as the residual atmospheric contaminants that scatters this light back into telescopes, and thereby lowers the contrast with the objects being viewed.

A secondary feature of a skylight or contrast enhancing filter is that the light of greatest throughput and lowest chromatic aberrations is passed by the filter, and light of lesser performance is attenuated.

Various configurations have been produced of skylight or contrast enhancing filters. A future note will go more into the details of different offers.

 

]]>http://bjomejag.squarespace.com/journal/rss-comments-entry-966629.xmlMeasuring Optical Density of Interference CoatingsGeneral InfoRobert Johnson, D.Sc.Sat, 17 Mar 2007 20:15:47 +0000http://bjomejag.squarespace.com/journal/2007/3/17/measuring-optical-density-of-interference-coatings.html107475:952836:964680Optical interference coatings can produce extremely high levels of signal to noise. This is the requirement to detect a weak optical signal in the presence of a strong background. Fluorescence detection is an example where the excitation signal can be a billion times as bright as the weak signal that is desired.

 

The following is a certification note that Omega supplies with it's demanding product, explaining some of the limitations of measuring the performance, and steps that should be taken to better determine the specific performance delivered.

Spectrophotometry_High_OD V2.jpg

]]>http://bjomejag.squarespace.com/journal/rss-comments-entry-964680.xmlDual Magnetron Reactive Sputtering at Omega OpticalRobert Johnson, D.Sc.Sat, 17 Mar 2007 16:14:10 +0000http://bjomejag.squarespace.com/journal/2007/3/17/dual-magnetron-reactive-sputtering-at-omega-optical.html107475:952836:964481Omega Optical has commissioned Leybold Optical Gmb to build the first commercially available Dual Magnetron Reactive Sputtering production line for it's Labs operating unit. This load locked machine will be used to transition many of Omega's customers to surface coating technology. Although not ideal for all applications, the depositing of optical coatings on outer surfaces of optics has the feature of increasing transmission from the 90% level to nearly 100% efficiency, due to the ease of matching the optical environment. With the features of the Helios process, durable and long life coatings can be designed to "leap frog" the many existing optical trains using Omega High Phase Thickness Coating,  to a significantly higher level of performance, and with very little cost impact. The following introductory flyer is currently going out to our customers.

DMRS V2.jpg



]]>http://bjomejag.squarespace.com/journal/rss-comments-entry-964481.xmlNice Article on Omega and Green ProductionGeneral InfoSustainable Living and WorkingRobert Johnson, D.Sc.Mon, 01 Jan 2007 16:31:16 +0000http://bjomejag.squarespace.com/journal/2007/1/1/nice-article-on-omega-and-green-production.html107475:952836:845407It seems Photonics.com is publishing a nice articel on Omega Optical, Inc and it's Green Facility and Manufacturing Practices located at the Delta Industris Campus. The article addresses many of the Green Building features, from the LED parkinging lot lights, to the Bio-Diesel (B40) fuel, to the sustainability promoted by recycled use of building materials, and even the worker friendly features of window views.

Check it out!

http://www.photonics.com/content/companyProfiles/2006/December/29/85341.aspx

 

]]>http://bjomejag.squarespace.com/journal/rss-comments-entry-845407.xmlProtected V Hard Surface Coating TechnologiesRobert Johnson, D.Sc.Sat, 09 Dec 2006 15:33:40 +0000http://bjomejag.squarespace.com/journal/2006/12/9/protected-v-hard-surface-coating-technologies.html107475:952836:807527

20050192554 Omega Optical, Inc., Brattleboro, VT, USA

The Pros and Cons of Protected and Surface Coatings for High-Phase-Thickness Applications

Johnson, Robert L., Jr.; Hardee, Chris; Photonics; July 2005; ISSN 0731-1230; Volume 39, Issue 7, pp. 60-65; In English;

Original contains color illustrations; Copyright; Avail: Other Sources ( See Omega Optical Technical )

Meta1 salt compounds, or dielectrics, produce thin-film coatings with precise spectral control. Because they are soft and

require glass coverslips laminated to the coating substrate to protect them from damage, they are called protected coatings.

Refractory metal-oxide materials, although hard and not in need of a protective glass layer, produce coatings that can

demonstrate spectral shift over time, called durable surface coatings. When examining the pros and cons of coating technology,

it becomes obvious that neither type is ideal for every application. World-class filter manufacturers typically use both

technologies for complicated, high- phase-thickness applications and know their attributes and limitations. Understanding

these pros and cons leads to a ‘best fit’ between customer needs and filter technology. The bottom line is that filter solutions

should be based on a careful and balanced consideration of all requirements, including spectral performance, filter life and

cost.

Derived from text

Coatings; Protective Coatings; Thickness

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