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 7298556 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 20, 2007

Filed:

Sep. 04, 2003
Applicants:

Kun-ho Cho, Gyeonggi-do, KR;

Dae-sik Kim, Gyeonggi-do, KR;

Sung-ha Kim, Cyconggi-do, KR;

Hee-joong Lee, Cydonggi-do, KR;

Inventors:

Kun-ho Cho, Gyeonggi-do, KR;

Dae-sik Kim, Gyeonggi-do, KR;

Sung-ha Kim, Cyconggi-do, KR;

Hee-joong Lee, Cydonggi-do, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/10 (2006.01); G03B 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An illuminating optical system including a lamp light source and a reflecting mirror device. The lamp light source emits light. The reflecting mirror device having double reflecting mirror arrays formed in at least a portion thereof which at least partly adjust a divergent direction of light emitted from the lamp light source.


Find Patent Forward Citations

Cho, Kun-ho. (2007). Illuminating optical system, image display apparatus using same and image display method (U.S. Patent No. 7298556). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7298556

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