Video projection apparatus

Details Video projection apparatus Video projection apparatus

2006-10-10

2006-10-10

Dowling, William C. (Department: 2851)

Optics: image projectors

Housing

C353S069000, C353SDIG005, C349S006000

Reexamination Certificate

active

07118231

ABSTRACT:
An image projection apparatus includes a light modulation system, a projection optical system for projecting a two-dimensional image onto a surface to be projected with light from the light modulation system, and an image signal processing unit for supplying an image signal to the light modulation system. A power supplying portion supplies power to the light modulation system, a head portion contains the projection optical system, and a main body portion contains the power supplying portion. In addition, a drive connection portion connects the head portion with the main body portion, in which the head portion and the main body portion can be relatively driven.

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patent: 5876105 (1999-03-01), Rodriquez, Jr.
patent: 6712475 (2004-03-01), Davis et al.
patent: 6783243 (2004-08-01), Bellander
patent: 2005/0030494 (2005-02-01), Kumai
patent: 6-82765 (1994-03-01), None
patent: 10-260473 (1998-09-01), None
patent: 2003-29182 (2003-01-01), None

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