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Glossary

lens A lens is a transparent optical device that focuses or diverges light, allowing it to pass through and form an image. Lenses are commonly used in optical systems, such as cameras, telescopes, microscopes, eyeglasses, and other vision-correcting...
scanning The successive analysis or synthesizing of the light values or other similar characteristics of the components of a picture area, following a given method.
laser pattern generation Production of a repeated image of a transmitted beam through a diffractive optical element such as a holographic card or component disk. Creating moving or stationary optical designs via a system of rapidly fluctuating mirrors (laser show).
flat-field lens A lens that focuses on a flat plane because its field of curvature is close to zero.
telecentric lens There are three types of telecentric lenses: -Image-space telecentric lenses are those in which the aperture stop is located at the front focus, resulting in the chief rays being parallel to the optical axis in image space; i.e., the exit pupil...