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:
Nov. 03, 2009
Filed:
Feb. 27, 2007
Applicants:
Young Ho Lee, Yongin-si, KR;
Kwang Yun Choi, Uiwang-si, KR;
Jin Su Seok, Suwon-si, KR;
Inventors:
Assignee:
Samsung Electro-Mechanics Co., Ltd., Gyunggi-Do, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 13/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
An aspheric plastic lens comprises a spherical surface portion having upper and lower portions at the center thereof, the upper and lower portions having curved surfaces with a different curvature, respectively; a rib formed in a circular plate shape so as to extend from the peripheral edge of the spherical surface portion to the outside, the rib having burrs formed to project on the edges of the upper and lower surfaces thereof; and a pair of two-stage step portions formed on the upper and lower surfaces of the rib, the two-stage step portions being formed symmetrically with each other.