Radiant energy – Photocells; circuits and apparatus – Photocell controls its own optical systems
Patent
1996-10-22
1997-12-23
Le, Que
Radiant energy
Photocells; circuits and apparatus
Photocell controls its own optical systems
250234, 250566, 358475, G01J 132
Patent
active
057010030
ABSTRACT:
An intensity compensated scanning system includes laser means for providing a laser beam; scanner means for sweeping the laser beam in an arcuate path across a surface to be scanned; means for sensing the return laser beam reflected from the surface to be scanned; means for quantifying the decrease in the intensity of the return laser beam at the scan extremity portion relative to the intermediate scan portion; and means responsive to the means for quantifying for varying the power to the laser means at the scan extremity portion relative to that at the intermediate scan portion for balancing the intensity of the return laser beam reflected from the surface to the means for sensing.
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Chisholm Thomas J.
Richard Gary
Rysin Alexander
Computer Identics Corporation
Le Que
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