light beam scanning

基本解释

The optical scanning device includes: an optical deflector that scans and deflects a light beam emitted by an optical source component;
以及成像光学系统，其被配置为将所述光学偏转器的偏转表面扫描偏转的光束成像在扫描表面上；
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The optical scanning device includes an oscillating mirror which has a pair of electrodes and a mirror oscillator, and which deflects a light beam;
该光学扫描装置包括振动反射镜，该振动反射镜具有一对电极和反射镜振动器，且该振动反射镜使光束偏转；
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Electonic plate scanning: A process that uses a light beam to scan the offset plate for the purpose of recording the position of image areas on the plate and to evaluate the amount of ink required .
电子印版扫描：用光束扫描柯式印版的过程中，记录印版上的印纹位置，用以计算需用墨量。

It works by scanning a laser beam across an object and manipulating the reflected light to produce an extremely narrow focal plane.
ECONOMIST: The Archimedes palimpsest: Eureka! The