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 7581840 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 01, 2009

Filed:

Oct. 27, 2005
Applicant:

Min-chul Kim, Suwon-si, KR;

Inventor:

Min-Chul Kim, Suwon-si, KR;

Assignee:

Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/14 (2006.01); G02B 7/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

A focus regulator is provided for simplifying and minimizing the structure of an image projector. The focus regulator includes a controller rotatably formed on a main body to be limitedly movable in the direction of the optical axis. A focus lens unit is affixed to the projection lens unit of the main body to be movable in the direction of the optical axis (OX) by being rotated with the controller.


Find Patent Forward Citations

Kim, Min-Chul. (2009). Focus regulator and projection apparatus having same (U.S. Patent No. 7581840). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7581840

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

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