Patent ID: 8669507
Filing Date: 2014-03-11
Classification: G02B

Abstract:
1. A laser scanning device, comprising: a laser output unit for outputting a laser beam; a light source for irradiating a visible light beam to an object, the object reflecting the visible light beam; a scanner comprising a scanning focusing unit for focusing the laser beam to scan the object, wherein the scanner receives the visible light beam from the object and outputs the visible light beam through the scanning focusing unit; a light splitting unit for letting the laser beam pass therethrough and reflecting the visible light beam output by the scanner; an imaging compensation unit for receiving the visible light beam reflected by the light splitting unit, wherein the visible light beam is focused for imaging after passing through the imaging compensation unit, and the imaging compensation unit compensates for an aberration caused when the visible light beam passes through the scanning focusing unit; a detection unit for receiving the visible light beam that passes through the imaging compensation unit and outputting a detection signal; and a control unit for receiving the detection signal and adjusting the detection signal according to a radius of curvature and a refractive index of the scanning focusing unit, a radius of curvature and a refractive index of the imaging compensation unit, and a wavelength of the visible light beam.