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:
Jan. 05, 2010
Filed:
Mar. 07, 2008
Jung-yao Chen, Hsinchu, TW;
Yu-hung Chou, Hsinchu, TW;
Chien-hsiung Tseng, Hsinchu, TW;
Kuo-chuan Wang, Hsinchu, TW;
Fu-ming Chuang, Hsinchu, TW;
Jung-Yao Chen, Hsinchu, TW;
Yu-Hung Chou, Hsinchu, TW;
Chien-Hsiung Tseng, Hsinchu, TW;
Kuo-Chuan Wang, Hsinchu, TW;
Fu-Ming Chuang, Hsinchu, TW;
Young Optics Inc., Hsinchu, TW;
Abstract
A zoom lens including a first lens group with a negative refractive power and a second lens group with a positive refractive power is provided. The first lens group includes a first lens, a second lens, and a third lens arranged from an object side to an image side in sequence. The refractive powers of the first, second, and third lenses are negative, negative, and positive sequentially. The second lens group includes a fourth lens, a fifth lens, a sixth lens, and a seventh lens arranged from the object side to the image side in sequence. The refractive powers of the fourth, fifth, sixth, and seventh lenses are positive, positive, negative, and positive sequentially. The first lens group and the second lens group are capable of moving between the object side and the image side.