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:
Apr. 06, 2010
Filed:
Dec. 28, 2007
Applicants:
Kyung Joon Lee, Seoul, KR;
Seung Man Chio, Bucheon-si, KR;
Jee Hyun Yang, Seoul, KR;
Jin Hyuk Kwon, Daegu, KR;
Inventors:
Kyung Joon Lee, Seoul, KR;
Seung Man Chio, Bucheon-si, KR;
Jee Hyun Yang, Seoul, KR;
Jin Hyuk Kwon, Daegu, KR;
Assignee:
Cheil Industries, Inc., Gumi-si, Gyeongsangbuk-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 5/00 (2006.01); F21V 7/04 (2006.01); G02B 6/32 (2006.01); G02B 6/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
An optical sheet includes a substrate having rear and front surfaces, a micro-lens-array on the front surface of the substrate, the micro-lens-array including a plurality of micro-lenses, a plurality of protrusions spaced apart from each other on the rear surface of the substrate, and an intercepting reflector layer on the protrusions.