Optical scanning device, method of controlling optical...

Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix

Reexamination Certificate

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C345S204000, C345S207000

Reexamination Certificate

active

07619599

ABSTRACT:
An optical scanning device, which scans a plurality of color light components so as to display an image, includes a light source unit that supplies a plurality of light beams, and a scanning unit that repeatedly scans each light beam from the light source unit in a first direction and a second direction in a region to be irradiated. The scanning unit is driven such that a frequency for scanning the light beam in the first direction becomes higher than a frequency for scanning the light beam in the second direction, and such that different light beams of the same color light component are allocated to at least some pixels of the image whenever the light beam is scanned in the second direction in the region to be irradiated.

REFERENCES:
patent: 5894123 (1999-04-01), Ohtomo et al.
patent: 7230657 (2007-06-01), Childers et al.
patent: 2003/0215156 (2003-11-01), Rieger
patent: A 2003-21804 (2003-01-01), None
patent: A 2003-172900 (2003-06-01), None

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