Rotary Laser with Mechanical Mask

Abstract: various laser level designs including the ability to physically/mechanically mask light emitted from the laser level are shown. in one example, the laser level includes physical barriers that can be moved between open and closed positions to selectively block or mask a desired portion of the projected laser plane.

Inventor(s): John Norbert Winkler, Max D. Mutza, Christopher Frederick Boehme, Gregory R. Strommen, Jacob D. Hadfield

CPC Classification: G01C15/006 (Surveying instruments or accessories not provided for in groups - )

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