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:
Sep. 04, 2018
Filed:
Apr. 27, 2015
Sintai Optical (Shenzhen) Co., Ltd., Shenzhen, Guandong Province, CN;
AO Ether Corporation, Taichung, TW;
SINTAI OPTICAL (SHENZHEN) CO., LTD., Shenzhen, Guangdong Province, CN;
AO ETHER CORPORATION, Taichung, TW;
Abstract
A lens assembly includes a first lens, a second lens, a third lens, a fourth lens and a fifth lens, all of which are arranged in sequence from an object side to an image side along an optical axis. The first lens is with refractive power and includes a convex surface facing the object side. The second and third lenses are with refractive power. The fourth lens is with refractive power and includes a convex surface facing the image side. The fifth lens is with negative refractive power. The lens assembly satisfies: 0≤f/f≤6, (Vd+Vd)/2>40, Vd≥Vd, Vd≥Vd, Vd≥Vdwherein fis an effective focal length of the first lens, fis an effective focal length of the second lens and Vd, Vd, Vd, Vdare Abbe numbers of the first, second, third, fifth lenses.