04170028 is referenced by 27 patents and cites 9 patents.

Method and apparatus for improving the efficiency of laser scanning systems using a multi-faceted rotating polygon as the scanner device. In particular, an acousto-optic Bragg cell is utilized as an active optical element to both modulate and deflect an incident laser beam so that the modulated beam is caused to follow one facet of the scanner during a complete scan and to shift to the adjacent facet for the following scan.

Title
Facet tracking in laser scanning
Application Number
5/785258
Publication Number
4170028
Application Date
April 6, 1977
Publication Date
October 2, 1979
Inventor
Richard V Johnson
Pasadena
CA, US
Leonard C DeBenedictis
Los Angeles
CA, US
Agent
Franklyn C Weiss
Irving Keschner
Assignee
Xerox Corporation
CT, US
IPC
H04N 3/10
H04N 3/08
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