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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 7360906 B1

PDFFull Text
Date of Patent:
Apr. 22, 2008

Filed:

Oct. 06, 2005

Projection optical system unit and projection-type image display apparatus using the same

Applicants:

Satoshi Onishi, Amagasaki, JP;

Atsushi Matsuura, Sakai, JP;

Kohei Wataru, Sakai, JP;

Inventors:

Satoshi Onishi, Amagasaki, JP;

Atsushi Matsuura, Sakai, JP;

Kohei Wataru, Sakai, JP;

Assignee:

Konica Minolta Opto, Inc., Hachioji-Shi, JP;

Attorney:

Sidley Austin LLP

Primary Examiner:

Diane I Lee

Assistant Examiner:

Magda Cruz

Int. Cl.
CPC ...
G03B 21/14 (2006.01); G03B 21/22 (2006.01); G03B 21/28 (2006.01); G03B 21/18 (2006.01); G03B 21/26 (2006.01); G03B 21/56 (2006.01); G02B 27/14 (2006.01); G02B 5/10 (2006.01);
U.S. Cl.
CPC ...
Abstract

A projection optical system unit has a lower pedestal. The lower pedestal has first and second tubular portions opened to each other. An image formation device holding plate for a DMD is mounted on the first tubular portion at a side where one opening is formed. A mirror holder for a convex mirror is fixed on the second tubular portion at a side where the other opening is formed. A linear heat expansion coefficient in a specific direction of the lower pedestal component is set between 0.8×10(1/K) and 3.0×10(1/K).

Find Patent Forward Citations

Onishi, Satoshi. (2008). Projection optical system unit and projection-type image display apparatus using the same (U.S. Patent No. 7360906). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7360906

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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