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Lambda Research Optics, Inc. - Mission
Photonics HandbookGeneral Reference

Density to Percent Transmission Conversion Table

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            Density – % Transmission
            (Opacity x % Transmission = 100)


Density
Opacity
 %T
 
0
1.0
 100
 
0.1
1.3
 80
 
0.2
1.6
 63
 
0.3
2.0
 50
 
0.4
2.5
 40
 
0.5
3.2
 32
 
0.6
4.0
 25
 
0.7
5.0
 20
 
0.8
6.3
 16
 
0.9
8.0
 13
 
1.0
10.0
 10
 
1.1
13
8.0
 
1.2
16
6.3
 
1.3
20
5.0
 
1.4
25
4.0
 
1.5
32
3.2
 
1.6
40
2.5
 
1.7
50
2.0
 
1.8
63
1.6
 
1.9
80
1.3
 
2.0
100
1.0
 
2.1
130
0.8
 
2.2
160
0.63
 
2.3
200
0.5
 
2.4
250
0.4
 
2.5
320
0.32
 
2.6
400
0.25
 
2.7
500
0.2
 
2.8
630
0.16
 
2.9
800
0.13
 
3.0
1000
0.1
 
D = log 1/T and T = 10-D

Spectrogon US - Optical Filters 2024 MR
where D = Density and T = Transmission



Glossary
opacity
A measure of a material's inability to transmit light, equal to the reciprocal of its transmittance.
densityopacitypercent transmissionGeneral Reference

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