System and method for using multiple beams to respectively scan multiple regions of an image

  • US 20020181097A1
  • Filed: 05/15/2001
  • Published: 12/05/2002
  • Est. Priority Date: 05/15/2001
  • Status: Active Grant
First Claim
Patent Images

1. An image system, comprising:

  • a screen having spatially discrete first and second regions with adjustable brightness levels; and

    a beam generator operable to direct first and second electromagnetic off beams and first and second electromagnetic on beams onto the first and second regions, respectively, the first and second off beams respectively operable to change the brightness levels of the first and second regions according to a first polarity, and the first and second on beams operable to change the brightness levels of the first and second regions according to a second polarity.

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