Light scan device and image display device

Details Light scan device and image display device Light scan device and image display device

2006-08-09

2011-10-18

Awad, Amr (Department: 2629)

Computer graphics processing and selective visual display system

Display driving control circuitry

C345S081000, C345S084000, C345S085000

Reexamination Certificate

active

08040332

ABSTRACT:
A light scan device which forces a beam light depending on an image signal to scan, including: a light source part for supplying the beam light; and a scanning part for forcing the beam light from the light source part to scan an illumination-target region in a first direction and a second direction substantially orthogonal to the first direction, wherein the scanning part is driven so that a frequency with which the beam light is forced to scan in the first direction is higher than a frequency with which the beam light is forced to scan in the second direction, and a spot formed on the illumination-target region by the beam light has a form with a shorter size in the first direction than in the second direction.

REFERENCES:
patent: 5436644 (1995-07-01), Motoi et al.
patent: 2003/0107701 (2003-06-01), Shimoshikiryo et al.
patent: 2004/0105267 (2004-06-01), Cho et al.
patent: 2005/0140930 (2005-06-01), Dvorkis et al.
patent: A 01-245780 (1989-09-01), None
patent: 09-033836 (1997-02-01), None

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