Optical system for projection television

Details Optical system for projection television Optical system for projection television

2007-09-04

2007-09-04

Natnael, Paulos M. (Department: 2622)

Television

Video display

Projection device

Reexamination Certificate

active

10461406

ABSTRACT:
An optical system includes a lens assembly fixed to a base for projecting an image light onto a surface; a DMD assembly movably disposed at one side of the lens assembly for reflecting the light irradiated from a light source onto the lens assembly; supporting members disposed at the one side of the lens assembly for supporting the DMD assembly; and an adjuster for moving the DMD assembly to adjust a tilt. The adjuster includes a guide member having a screw hole and fixed to the base; an adjusting screw driven into the screw hole for moving the DMD assembly along a lengthwise direction of the guide member; and a push rod having an end connected to the DMD assembly and another end connected to the adjusting screw. The DMD assembly is movable by adjusting the adjusting screw so that a tilt angle can be easily and precisely adjusted.

REFERENCES:
patent: 5633755 (1997-05-01), Manabe et al.
patent: 6072443 (2000-06-01), Nasserbakht et al.
patent: 6391245 (2002-05-01), Smith
patent: 6500378 (2002-12-01), Smith
patent: 6758579 (2004-07-01), Ishikawa et al.
patent: 2002/0008676 (2002-01-01), Miyazaki et al.

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