G - Physics – 06 – K
Patent
G - Physics
06
K
88/96.8
G06K 15/12 (2006.01) G02B 26/10 (2006.01)
Patent
CA 1318802
ABSTRACT OF THE DISCLOSURE A scanning optical apparatus comprises: a light source unit, optical system for converging a light beam from the light source unit at a predetermined position, moving device for moving the converged position of the light beam by the optical system; deflecting device for deflecting the light beam from the light source unit in a predetermined direction; light receiving device for receiving the light beam deflected by the deflecting device, processing device for processing a signal obtained by said light receiving device, and control device for controlling the moving device correspondingly to a signal from the processing device, the light beam emitted from said light source unit being scanned on said light receiving device a plurality of times through said optical system and said deflecting device while the converged position of the light beam is moved by the moving device, and the signal from the light receiving device during each of the plurality of times of scanning being compared or calculated by the processing device to thereby adjust and determine the converged position of the light beam by the optical system.
600155
Minoura Kazuo
Shimoda Isamu
Canon Kabushiki Kaisha
Ridout & Maybee Llp
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