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:
Jun. 29, 2010
Filed:
Oct. 22, 2008
Jung-wook Paek, Suwon-si, KR;
Jin-soo Kim, Seoul, KR;
Eun-jeong Kang, Asan-si, KR;
Jin-sung Choi, Cheonan-si, KR;
Sang-hoon Lee, Yongin-si, KR;
Si-joon Song, Yongin-si, KR;
Jung-Wook Paek, Suwon-si, KR;
Jin-Soo Kim, Seoul, KR;
Eun-Jeong Kang, Asan-si, KR;
Jin-Sung Choi, Cheonan-si, KR;
Sang-Hoon Lee, Yongin-si, KR;
Si-Joon Song, Yongin-si, KR;
Abstract
An optical lens includes a recessed part and a refracting part. The recessed part has a substantially circular plan view and a substantially V shaped cross-section. The recessed part forms an angle of no more than an angle of about 20° with respect to a vertical line. The recessed part has a plurality of curved surfaces including different radii so that a light incident into the recessed part is totally reflected from the curved surfaces. The refracting part has a substantially circular plan view extended from the recessed part. A light incident into the refracting part and the reflected light from the recessed part are refracted from the refracting part. Therefore, a luminance uniformity and a color uniformity are improved.