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Definitions for "Optical density"
Keywords:  logarithm, transmittance, density, turbidity, mpe
Related Terms: Densitometry, Optical depth, Densitometer, Beam splitter, Numerical aperture, Density, Beamsplitter, Attenuation coefficient, Optical waveguide, Chromatic dispersion, Fiber bragg grating, Bragg grating, Optical thickness, Optical, Absorbance, Monochromatic, Interferometer, Birefringence, Optical cavity, Emitter, Source, Dispersion, Neutral density filter, Graded index fiber, Laser, Absorption, Absorption coefficient, Maximum density, Optoelectronics, Density, Laser diode, Transmittance, Spectrometer, Light meter, Fluorometer, Photonics, Refractive index, Particle count, Spectrophotometer, Exposure meter, Visible transmittance, Molar volume, Diffraction grating, Nd filter, Optical fiber, Ray, Mode, Refractometer, Optical time domain reflectometer
is the logarithm to the base ten of the reciprocal of the transmittance: OD = log10(Ei/Et), where OD = optical density, Ei = incident beam irradiance (W/cm2) worst case exposure, and Et = transmitted beam irradiance (MPE limit in W/cm2).
scripps.edu
The ability of a material to absorb light. The darker the material, the higher the density. Density is usually expressed on a logarithmic scale of Optical Density (O.D.) units.
creativepro.com
The logarithm to base 10 of the inverse of the transmittance.
envisat.esa.int
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Keywords:  nbsplightness, densitometer, darkness, measured
nbspLightness or darkness measured with a densitometer.
ap.fasson.com
Keywords:  densichron, hatch, opacity, log, retards
A measurement of the transmission of light through the cross-hatch area (Densichron).
knfcorporation.com
the degree to which a refractive medium retards transmitted rays of light.
ippstar.com
(OD): Units measuring transmission usually in blocking regions. Conversion: -log10(T) = OD. Example: 1% transmission is 0.1 absolute, so -log10 (0.01) = OD 2.0.
janostech.com
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Keywords:  absorbing, capacity, image, light, area
Light-absorbing capacity of an image area.
craftprint.com
Keywords:  intensity, printed, image, color
the intensity of color or the printed image
wlinpco.com