Optical system of laser scanner and surveying instrument
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United States of America Patent
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Jul 14, 2020
Grant Date -
Feb 1, 2018
app pub date -
Jul 12, 2017
filing date -
Jul 27, 2016
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Abstract
An optical system of a laser scanner comprising: a light projecting system for projecting a distance measuring light, a scanning mirror for rotatably irradiating the distance measuring light from the light projecting system around a single axis and for making a reflected distance measuring light from an object to be measured enter a light receiving system, a transmission window for accommodating the scanning mirror and through which the distance measuring light and the reflected distance measuring light are transmitted, and a correction optical component for offsetting an optical action of the transmission window, which is provided at least in a middle of an irradiating optical path of the distance measuring light.
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