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. 26, 2007
Filed:
Sep. 30, 2005
Chun-hong Chen, Taichung, TW;
Shu-hung Lin, Taichung, TW;
Chun-Hong Chen, Taichung, TW;
Shu-Hung Lin, Taichung, TW;
Asia Optical Co., Inc., Taichung, TW;
Abstract
A compact lens system includes a first positive lens element () on the object side and a second negative lens element () on the image side. The first positive lens element is a meniscus lens having a convex surface () facing the object side. The second negative lens element is also a meniscus lens having a convex surface () facing the image side. Both of the first and second lens elements are aspheric lenses each having at least one aspheric surface. The first and second lens elements are made of different plastic materials and are symmetrically arranged with respect to each other along the optical axis.