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2 terms
Photonics Dictionary: F
Clear All Filters x
cone x
F x
foveal vision
->
photopic vision
Vision by means of retinal cones; color vision. Relatively high levels of luminance are required for photopic vision.
front operating aperture
The restricting aperture located at the front of the lens. It is usually defined as the maximum diameter of the entrance cone at the front vertex, for the specified field of view at infinity focus.
Photonics Dictionary
F
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