| collimator |
A plano-convex lens or parabolic mirror used in holography to transform a spread light beam into a parallel beam.
출처: muse.jhu.edu/journals/leonardo/v034/34.4poissant.h...
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| collimator |
A device that renders divergent or convergent rays nearly parallel.
출처: www.pd-ld.com/Industry_glossary.htm
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| collimator |
An instument that focuses light into a nearly perfect parallel beam (only a laser can achieve a truly perfect collimated beam). When a reticle is incorporated into the design, a collimator can project an image focused on infininty. Such an image can be used to check the focus calibration of lenses, and the ground glass depth on reflex cameras.
출처: www.cinematechnic.com/resources/glossary.html
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