Precise laser edge patrol sensor

Abstract

The utility model relates to a kind of precision laser edge patrol sensors, precision laser edge patrol sensor includes: sensor shell, laser emission head and laser receiving head and lens assembly.Laser emission head, laser receiving head and lens assembly are all arranged in sensor shell, the central axis of laser receiving head and the central axis of laser emission head intersect, laser emission head can emit laser along its central axis;Lens assembly is located at the luminous place of laser emission head, and lens assembly can move along the central axis of laser emission head.The utility model utilizes laser emission head to emit parallel light beam, then uses lens to condense light of parallel light beam, so that laser energy is concentrated to the surface of the object to be measured, forms small light spot, using the principle that different color of the surface of the object to be measured reflects light to different degree, different thickness black mark line can be identified, improve detection accuracy.And make the device not need to customize lens, so that manufacturing cost is greatly reduced.

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