IP Library Granted Patent US 8,398,250
Granted Patent B2
US 8,398,250 · App. 12/872,515 · Granted Mar 19, 2013

Projection display device

Inventors: Takaharu Adachi (Gifu, JP); So Suzuki (Osaka, JP); Taichi Yoshimura (Osaka, JP); Yufeng Yang (Guangdong, CN); Xianglin Zhang (Guangdong, CN)
Assignees: SANYO Electric Co., Ltd.; SANYO Technology Center (Shenzhen) Co., Ltd.
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Quick Facts
Patent No.
US 8,398,250
App. No.
12/872,515
Granted
Mar 19, 2013
Kind
B2
Abstract

A projection display device includes a light source; an optical system which modulates light from the light source, and emits the modulated light; a projecting portion which enlarges and projects the light emitted from the optical system; a cabinet which houses the light source, the optical system, and the projecting portion; an opening which is formed in one surface of the cabinet to allow mounting or dismounting of an optical component constituting the optical system, or the light source; a cover which covers the opening; and a holding portion which holds the cover in such a manner that the cover is allowed to slide in a direction along the one surface.

Claims (21)

1. A projection display device comprising:

a light source;

an optical system which modulates light from the light source, and emits the modulated light;

a projecting portion which enlarges and projects the light emitted from the optical system;

a cabinet which houses the light source, the optical system, and the projecting portion;

an opening which is formed in one surface of the cabinet to allow mounting or dismounting of an optical component constituting the optical system, or the light source;

a cover which covers the opening; and

a holding portion which holds the cover in such a manner that the cover is allowed to slide in a direction along the one surface of the cabinet,

wherein the opening includes a first opening through which one of the optical component and the light source is mounted or dismounted, and a second opening through which the other of the optical component and the light source is mounted or dismounted,

the cover includes a first cover which covers the first opening, and a second cover, separate from the first cover, which covers the second opening, and

the holding portion includes a first holding portion which holds the first cover, and a second holding portion which holds the second cover, and

further wherein the first cover and the second cover are arranged side by side on the one surface,

the first holding portion holds the first cover in such a manner that the first cover is slidably moved from a closing position at which the first cover closes the first opening in a direction different from a direction in which the second cover is disposed, and

the second holding portion holds the second cover in such a manner that the second cover is slidably moved from a closing position at which the second cover covers the second opening to the closing position of the first cover.

2. The projection display device according to claim 1 , wherein

the holding portion holds the cover in such a manner that the cover is pivotally moved in a direction away from the one surface when the cover is opened to a predetermined position.

3. The projection display device according to claim 1 , wherein

the first opening is an opening through which the light source is mounted or dismounted, and

the second opening is an opening through which the optical component is mounted or dismounted.

4. The projection display device according to claim 2 , wherein the first opening is an opening through which the light source is mounted or dismounted, and

the second opening is an opening through which the optical component is mounted or dismounted.

Assignments (5)
CHANGE OF ADDRESS Recorded Feb 24, 2026
From: SANYO ELECTRIC CO., LTD.
To: SANYO ELECTRIC CO., LTD.
Reel/Frame 074982/0479 →
CHANGE OF ADDRESS Recorded Feb 24, 2026
From: SANYO ELECTRIC CO., LTD.
To: SANYO ELECTRIC CO., LTD.
Reel/Frame 074983/0494 →
NUNC PRO TUNC ASSIGNMENT Recorded Feb 24, 2026
From: SANYO ELECTRIC CO., LTD.
To: PANASONIC PROJECTOR & DISPLAY CORPORATION
Reel/Frame 074983/0875 →
CHANGE OF NAME Recorded Jan 28, 2011
From: SHENZHEN HUAQIANG SANYO TECHNOLOGY DESIGN CO., LTD.
To: SANYO TECHNOLOGY CENTER (SHENZHEN) CO., LTD.
Reel/Frame 025713/0832 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 1, 2010
From: ADACHI, TAKAHARU; SUZUKI, SO; YOSHIMURA, TAICHI; YANG, YUFENG; ZHANG, XIANGLIN
To: SANYO ELECTRIC CO., LTD.; SHENZHEN HUAQIANG SANYO TECHNOLOGY DESIGN CO., LTD.
Reel/Frame 024924/0774 →
Priority Claims (1)
JP 2009-225593 · Sep 29, 2009 · national
Continuity (1)
Related Publication 20110075117A1 · Mar 31, 2011