transmittance
to pass light through a substrate.
transmittance scale
a measure of light passing through a material, interpreted on a percentage scale of 0 to100, reading the reverse of percentage dot area.
transmittance:
The fraction of the incident light that passes through an object.
tritone: ...
Transmittance
The fraction of the light that passes through an object.
Transparency scanner
An optical input system for digitizing images from small format positive or negative transparency film.
Transmittance (T) is defined as the ratio of transmitted light over incident light. It is usually expressed as a percent. So 1% transmittance means that 1/100th of the light got through a piece of film or a lens or whatever.
is a factor depending on the transmittance T of the lens, the vignetting factor v(θ), and the angle θ relative to the axis of the lens. A typical value is q = 0.65, based on θ = 10°, T = 0.9, and v = 0.98.
According to Westfall, CMOS improvements from the top down include larger microlenses positioned above each photodiode and closer to the sensor surface to improve light-gathering efficiency; improved Bayer filters with higher transmittance; ...
In addition, most of the materials do not have enough transmittance in VUV region, so we have poor choice of available materials.
As for increasing the N.A. of the projection lens, in general, the larger the N.A.
Opacity = 100/Transmittance in percent. OPAQUING-All handwork on a negative to remove spots or unwanted images. OPEN FLASH-A method of taking photoflash pictures in which the camera shutter is held open during the flash and then closed.
 See also: Light, Image, Film, Camera, Photograph
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