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Filter |
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Filter |
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Absorption,
and particularly wavelength selective absorption
is an important factor in the function of the
filters. The two most commonly used absorbers
are thin metallic films which are particularly
insensitive to wavelength for absorption, and
colored glasses which absorb wavelengths varied
by as much as several orders of magnitudes in
only tens of nanometers. Interference filters
are multilayer dielectric thin film devices.
Metallic films, colored glasses and thin
dielectric films are used in
CNI filters. |
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Band Pass
Filters
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Applications:
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 Emission
filters in fluorescence |
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Sorting filters in photometry |
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Stray light
or trim filters |
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Eliminate
unwanted near band radiation |
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◆Filter
for 671 nm laser (Filter-671) |
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λ (nm) |
Transmittance |
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1060 |
0.01 |
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0.37 |
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670 |
0.77 |
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660 |
0.82 |
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0.82 |
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0.87 |
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560 |
0.97 |
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0.95 |
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370 |
0.94 |
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280 |
0.01 |
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◆Filter
for 473 nm and 532 nm laser(Filter-473/532) |
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λ (nm) |
Transmittance |
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700 |
0.01 |
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0.06 |
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0.82 |
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0.97 |
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470 |
0.97 |
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0.90 |
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350 |
0.65 |
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320 |
0.04 |
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◆Filter
for 1064 nm laser(Filter-1064) |
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λ (nm) |
Transmittance |
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800 |
5*10-4 |
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0.25 |
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0.75 |
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0.97 |
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980 |
0.97 |
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0.98 |
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1300 |
0.98 |
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1900 |
0.98 |
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2700 |
0.83 |
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Note:
Different dimensions are available upon request. |
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Addr: No.888 Jinhu Road High-tech Zone,Changchun 130103, P.R.China |
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