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:
Sep. 07, 2010
Filed:
Jan. 03, 2006
Applicant:
Kye-hoon Lee, Suwon-si, KR;
Inventor:
Kye-hoon Lee, Suwon-si, KR;
Assignee:
Samsung Electronics Co., Ltd, Suwon-si, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/26 (2006.01); H01J 1/62 (2006.01); H01J 63/04 (2006.01); H04N 5/74 (2006.01);
U.S. Cl.
CPC ...
Abstract
An LED package having improved light efficiency, and an illumination system and a projection system employing the LED package. An LED package to provide light to a display panel having a plurality of rotatable micromirrors to form images, the LED package includes a substrate and a plurality of LED chips. The plurality of LED chips are slanted with respect to the substrate at a predetermined angle. The LED package improves the light efficiency by arranging the plurality of LED chips so as to correspond to a shape of effective light having an asymmetric distribution with respect to a stop of a projection lens unit.