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.:
Date of Patent:
Mar. 22, 1994
Filed:
Nov. 25, 1992
Applicant:
Inventors:
Hong C Park, Seoul, KR;
Hee S Koo, Seoul, KR;
Assignee:
GoldStar Co. Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
353 87 ; 359 48 ; 362254 ;
Abstract
A lamp changing system is an LCD projector, comprising a reflective facet, a rotary plate having a plurality of arc-tubes and blocks disposed thereon, and a cam member having an upper cam and a lower cam, whereby upon rotating the cam member, an old arc-tube is separated from and new arc-tube is replaced for the old arc-tube as a light source for the LCD projector.