What do you mean by optical density?
Asked by
| 14th Sep, 2008,
01:10: PM
Expert Answer:
In optics, density is a unitless measure of the transmittance of an optical element for a given length at a given wavelength λ:
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O = the per-unit opacity T = the per-unit transmittance I0 = the intensity of the incident light beam I = the intensity of the transmitted light beam
The higher the optical density, the lower the transmittance.
Answered by
| 15th Sep, 2008,
07:32: AM
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