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Common
Specifications for Standard-line Bandpass filters
Back
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Available sizes: |
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½” |
12.7 +0,
-0.25 mm diameter |
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1” |
25.4 +0,
-0.25 mm diameter |
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Min. clear aperture: |
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½” |
8.7 mm |
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1” |
21.4 mm |
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Maximum thickness: |
6.4 mm |
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Edge treatment: |
Hermetically
sealed in black anodized aluminum ring |
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Humidity resistance: |
Per
Mil-STD-810E |
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Optimum
temp: |
23°
C |
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Temperature limits: |
-50°C
to 80°C |
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Substrate material: |
Optical
quality glass |
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Surface quality: |
80/50 per
Mil-O-13830A |
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Certification: |
Spectrophotometric print of manufacturing lot sample |
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Common
Specifications for Short and Long-wave Pass filters
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Transmission: |
> 80%
average within specified range |
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Attenuation: |
> 99%
average within specified range |
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Slope: |
< 6%, where
slope = (λ80%Tpk
–
λ5%Tabs)
/
λ5%Tabs |
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Angle of incidence: |
0º ± 5º |
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Substrate material: |
Fused silica |
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Coating material: |
Refractory
oxide |
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Surface quality: |
80/50 per
Mil-O-13830B |
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Coating quality: |
40/20 per
Mil-O-13830B |
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Wedge: |
< 3 arc
minutes |
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Wavefront distortion: |
≤ 1 wave per
inch |
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Diameter: |
25.0 +0,
-.025 mm diameter |
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Min. clear aperture: |
21.0 mm |
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Thickness: |
1.5 +/-
0.5 mm |
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Humidity resistance: |
Per
Mil-C-675A |
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Abrasion resistance: |
Per
Mil-C-675A |
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Optimum temp: |
23°
C |
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Temperature limits: |
-50°C
to 100°C |
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Certification: |
Spectrophotometric print of lot sample |
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Common
Specifications for Color Process Filters
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Available sizes: |
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1” round |
25.4 +0,
-0.25 mm diameter |
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2" round |
50.8 +0,
-0.25 mm diameter |
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7.5” square |
190.5
±
0.25 mm square |
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Minimum clear aperture: |
95% of
outside dimension |
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Thickness: |
1.0
±
0.5 mm
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Substrate material: |
Borosilicate
glass |
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Coating material: |
Refractory
oxide |
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Surface quality: |
80/50 per
Mil-O-13830B |
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Coating quality: |
40/20 per
Mil-O-13830B |
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Flatness: |
3 to 5 waves
per inch |
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Parallelism: |
3 arc
minutes or better |
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Humidity resistance: |
Per
Mil-C-675A |
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Abrasion resistance: |
Per
Mil-C-675A |
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Temperature limits: |
-50°C
to 200°C |
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Certification: |
Spectrophotometric print of lot sample |
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Common
Specifications for Heat Control Filters
Back
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Available sizes: |
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1” round |
25.4 +0,
-0.25 mm diameter |
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2" round |
50.8 +0,
-0.25 mm diameter |
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7.5” square |
190.5
±
0.25 mm square |
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Minimum clear aperture: |
95% of
outside dimension |
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Thickness: |
1.0
±
0.5 mm
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Substrate material: |
Borosilicate
glass |
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Coating material: |
Refractory
oxide |
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Surface quality: |
80/50 per
Mil-O-13830B |
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Coating quality: |
40/20 per
Mil-O-13830B |
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Flatness: |
3 to 5 waves
per inch |
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Parallelism: |
3 arc
minutes or better |
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Humidity resistance: |
Per
Mil-C-675A |
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Abrasion resistance: |
Per
Mil-C-675A |
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Temperature limits: |
-50°C
to 200°C |
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Certification: |
Spectrophotometric print of lot sample |
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Common
Specifications for Standard-Line Neutral Density Filters
Back
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Available sizes: |
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½” |
12.7 +0,
-0.25 mm diameter |
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1” |
25.4 +0,
-0.25 mm diameter |
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2" round |
50.8 +0,
-0.25 mm diameter |
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Minimum clear aperture: |
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½” |
10.7 mm
diameter |
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1” |
23.4 mm
diameter |
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2" round |
48.8 mm
diameter |
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Maximum thickness: |
2.5 mm |
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Spectral range: |
400 to 700
nm |
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Humidity resistance: |
Per
Mil-STD-810E |
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Optimum temperature: |
23°
C |
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Temperature limits: |
-50°C
to 80°C |
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Substrate material: |
Optical
crown glass |
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Coating material: |
Protected
inconel |
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Surface quality: |
80/50 per
Mil-O-13830A |
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Coating quality: |
80/50 per
Mil-O-13830A |
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