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7 terms
Photonics Dictionary: S
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reflectors x
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Schmidt correction plate
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Schmidt plate
An aspheric plate placed at, or near, the center of curvature of a spherical reflector and used to correct for spherical aberration.
Schmidt plate
An aspheric plate placed at, or near, the center of curvature of a spherical reflector and used to correct for spherical aberration.
silver-disc pyrheliometer
An instrument that uses a blackened silver-disc reflector with a shutter to create temperature fluctuations that are proportional to the intensity of the solar radiation incident upon it. Using the...
simultaneous location and mapping
Technology that uses data from an array of sensors, one of which is commonly lidar, to solve the problem of creating a map of an unknown environment while simultaneously maintaining a location within...
specular reflector
A reflector that exhibits specular reflectance, producing a direct image of its source. Also known as regular reflectance.
strioscopy
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zero-order filtering
The removal of the zero-order component of the Fourier spectrum distribution of an object with a small, opaque absorber or reflector in the Fourier plane, to produce images that appear bright on a...
superreflector
A reflector having a surface that has been superpolished to reduce residual sleeks and scratches and microroughness so that its scatter coefficient is low. Its surface is said to have a low-scatter...
Photonics Dictionary
S
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