Projector apparatus

Details Projector apparatus Projector apparatus

2005-08-11

2008-12-02

Dowling, William C. (Department: 2851)

Optics: image projectors

Lens support

Lens position adjustable

C353S046000

Reexamination Certificate

active

07458692

ABSTRACT:
A projector apparatus, comprising a light converging unit (14) for converging image light for formation of a predetermined image; a lens unit (4) for passing through the image light from the light converging unit (14) so that an image of a predetermined magnification is displayed on a screen; a moving unit (5) for changing a relative distance between the light converging unit (14) and the lens unit (4) to adjust a position of the image displayed on the screen by the lens unit (4); and a control unit (6) for determining whether or not the relative distance changed by the moving unit exceeds a predetermined amount.

REFERENCES:
patent: 7322701 (2008-01-01), Kamimura et al.
patent: 2004/0080836 (2004-04-01), Miyashita et al.
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patent: 2004-317988 (2004-11-01), None

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