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Photopic vision.
CCTV glossary (глоссарий терминов по видеонаблюдению) |
The range of light intensities, from 105 lux down to nearly 10–2 lux, detectable
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Photopic, английский
Bright light conditions where only the cones are functional
Photopic vision, английский
- The range of light intensities, from 105 lux down to nearly 10-2 lux, detectable by the human eye.
- Vision which is adapted to bright light such as daylight, using the cones in the retina instead of the rods, which are used in scotopic vision. light adaptation
- Average spectral responsivity curve of the human eye when adapted to well lit conditions (greater than 0.034 cd·m–2). the photopic spectral luminous efficiency response curve is governed by an averaged retinal cone response with sensitivity peaks centered at about 555 nm. also known as foveal vision and light adapted vision. compare mesopic vision and scotopic vision.2,6
- Average spectral responsivity curve of the human eye when adapted to well lit conditions (greater than 0.034 cd/m2). the photopic spectral luminous efficiency response curve is governed by an averaged retinal cone response with sensitivity peaks centered at about 555 nm. also known as cie spectral sensitivity function of the human eye; foveal vision; and light adapted vision. compare mesopic vision; scotopic vision (iesna 1984).
- Average spectral responsivity curve of the human eye when adapted to well lit conditions (greater than 0.034 cd·m–2). the photopic spectral luminous efficiency response curve is governed by an averaged retinal cone response with sensitivity peaks centered at about 555nm.
Vis., английский
Vis. this page intentionally left blank w 1. abbr. for watt. 2. on drawings, abbr. for “west.” 3. on drawings, abbr. for “width.” w/ on drawings, abbr. for “with.” waf abbr. for “wiring around frame.”, английский
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Video gain., английский
The range of light-to-dark values of the image that are proportional to the voltage
Ccd aperture, английский
The proportion of the total area of a ccd chip that is photosensitive.
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