SCANNING LASER Russian patent published in 2010 - IPC H01S3/101 G02B26/10 

FIELD: physics.

SUBSTANCE: laser has two plane mirrors, one of which completely reflects and the other partially transmits laser radiation, two converging lenses, a polariser, an active element and a spatial light modulator. The active element is symmetrically placed between the lenses. The lenses are confocally placed between the mirrors. The reflecting surfaces of the mirrors coincide with focal planes of the lenses. The laser also has a heat exchanger. The active element is in form of a disc or plate. On one side of the disc or plate there is an antireflection coating and on the other there is a total reflecting coating on the wavelength of the laser radiation. The element is fitted on the heat exchanger by the side with the total reflecting coating.

EFFECT: larger angle of vision and dimensions of the processing zone when using the scanning laser in location systems and industrial process installations respectively, and faster operation and higher efficiency.

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