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, 2016
Filed:
Jul. 09, 2012
Dayong LI, Saitama, JP;
Dayong Li, Saitama, JP;
TAMRON CO., LTD., Saitama-shi, JP;
Abstract
A zoom lens includes sequentially from an object side, a first lens section Ghaving a negative refractive power and a second lens section Ghaving a positive refractive power. The first lens section Gincludes sequentially from the object side, a negative lens L, a negative lens L, and a positive lens L. Both surface of the negative lens Lare aspheric. The second lens section Gincludes sequentially from the object side, a front group Ghaving a positive refractive power and a rear group Ghaving a positive refractive power. Both surfaces of a negative lens Lincluded in the rear group Gare aspheric. The zoom lens can maintain high imaging performance while achieving size reductions and wide angle views by satisfying given conditions.