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:
May. 06, 2008
Filed:
Apr. 13, 2006
Applicant:
Hung-chih LI, Taichung, TW;
Inventor:
Hung-Chih Li, Taichung, TW;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 9/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
An image-forming lens set includes a first lens, a second lens, an aperture and a third lens arranged orderly from an objective side toward an image side in sequence. The first lens is made of plastic material and has a positive diopter and two opposite surfaces including a convex surface facing the image side. The second lens is made of plastic material and has a negative diopter and two opposite surfaces including a concave surface facing the image side. The third plastic lens is made of plastic material and has a positive diopter and two opposite surfaces including a convex surface facing the image side.