Laser sensing apparatus and method

Details Laser sensing apparatus and method Laser sensing apparatus and method

G - Physics

02

B

G02B 27/48 (2006.01) G01J 3/433 (2006.01) G01N 21/39 (2006.01)

Patent

CA 2553474

An apparatus for eliminating speckle noise from retro reflectors. A polyethylene film is introduced in an optical path between a retro reflector and a radiation receiver to reduce coherence length of collected light and eliminate sparkle noise.

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