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. 04, 2019
Filed:
Feb. 09, 2015
Applicants:
Sintai Optical (Shenzhen) Co., Ltd., Shenzhen, Guandong Province, CN;
Asia Optical International Ltd., Tortola, GB;
Inventor:
Hsi-Ling Chang, Taichung, TW;
Assignees:
SINTAI OPTICAL (SHENZHEN) CO., LTD., Shenzhen, Guandong Province, CN;
ASIA OPTICAL INTERNATIONAL LTD., Tortola, VG;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 3/02 (2006.01); G02B 13/18 (2006.01); G02B 9/60 (2006.01); G02B 13/00 (2006.01);
U.S. Cl.
CPC ...
G02B 9/60 (2013.01); G02B 13/004 (2013.01); G02B 13/007 (2013.01); G02B 13/0045 (2013.01);
Abstract
A lens assembly includes a fifth lens, a first lens, a second lens, a third lens and a fourth lens, all of which are arranged in sequence from an object side to an image side along an optical axis. The second lens is a biconcave lens. The third lens is a biconvex lens and made of glass material. The fourth lens includes a concave surface facing the object side.