Projector

Details Projector Projector

2006-09-26

2006-09-26

Perkey, W. B. (Department: 2851)

Optics: image projectors

Lamp control

Lamp position adjustable

C348S794000, C348S745000, C353S119000

Reexamination Certificate

active

07111945

ABSTRACT:
A projector includes a resin-made lamp case in which a light source lamp is fitted and a metal-made optical part holder in which an optical part is fitted. Preferably, the lamp case includes a positioning boss, the optical part holder includes a resin-made lamp case holder which accommodates the lamp case, a tubular light tunnel which shapes a form of light, a cylindrically shaped portion having a guide hole into which the positioning boss is inserted, and a resiliently deformable detent member, a metal-made light-tunnel fixing member, the detent member is substantially U-shaped and is provided integrally on the light-tunnel fixing member, the cylindrically shaped portion has a slot portion into which the detent member is inserted and which extends from an outer peripheral surface to the guide hole, and the positioning boss has a concave engaging portion which is engaged with the detent member.

REFERENCES:
patent: 6056405 (2000-05-01), Heintz et al.
patent: 6969175 (2005-11-01), Takemi
patent: 7018082 (2006-03-01), Liu et al.
patent: 2002/0075687 (2002-06-01), Payne
patent: 2004/0223125 (2004-11-01), Tamaru et al.
patent: 2001-215618 (2001-08-01), None
Patent Abstracts of Japan, Publication No. 2001-215618, Date of Publication: Aug. 10, 2001 (1 page).

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