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7 terms
Photonics Dictionary: B
Clear All Filters x
brightness x
B x
brightness
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luminance
Luminous flux emitted from a surface per unit solid angle per unit of area, projected onto a plane normal to the direction of propagation. Also known as brightness and luminous sterance.
brightness control
The manual shifting bias control of a cathode-ray tube that determines both the average brightness and the contrast of a picture.
brightness meter
An instrument for measuring the brightness (luminance) of a scene. It may be a spot meter, covering an area of a degree or less, or an averaging meter, covering a broad area of the scene. Brightness...
brightness resolution
The degree to which a pixel in a digital image represents the analog brightness of the corresponding point in the original image. It is dependent largely on the number of bits devoted to representing...
brightness scale
A graduated range of stimuli perceived as having equivalent differences of brightness.
binary image
A digitized image consisting of just two brightness levels, as black and white, represented in memory as zeros and ones.
blooming
The loss of focus of a camera sensor because of excessive brightness, characterized by the enlargement of spot size and halation on a cathode-ray tube.
Photonics Dictionary
B
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