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:
Feb. 18, 2003
Filed:
Oct. 10, 2000
Applicant:
Inventor:
Seung Gyu Lee, Kyounggi-do, KR;
Assignee:
LG Electronics Inc., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 2/114 ;
U.S. Cl.
CPC ...
G03B 2/114 ;
Abstract
A cylindrical color wheel that is adaptive for making a slim-type picture projector. In the cylindrical color wheel, a color drum is provided with a plurality of color filters for transmitting only a light beam having a wavelength corresponding to a different color being integrally formed in a cylinder shape. A coupler is attached to the color drum. A motor rotates the coupler to which the color drum is attached.