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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.:

US 9778440 B1

PDFFull Text
Date of Patent:
Oct. 03, 2017

Filed:

Dec. 08, 2015

Optical system having small perspective distortion and ultra-wide viewing angle

Applicant:

Union Optech Co., Ltd., Zhongshan, CN;

Inventor:

Junqiang Gong, Zhongshan, CN;

Assignee:

UNION OPTECH CO., LTD., Zhongshan, CN;

Attorneys:

Matthias Scholl, PC

Matthias Scholl

Primary Examiner:

Bumsuk Won

Assistant Examiner:

Ephrem Mebrahtu

Int. Cl.
CPC ...
G02B 13/00 (2006.01); G02B 27/00 (2006.01); G02B 9/64 (2006.01); G02B 3/04 (2006.01); G02B 13/18 (2006.01);
U.S. Cl.
CPC ...
G02B 13/0045 (2013.01); G02B 9/64 (2013.01); G02B 27/0025 (2013.01); G02B 3/04 (2013.01); G02B 13/002 (2013.01); G02B 13/18 (2013.01);
Abstract

An optical system, including, sequentially from an object side to an image side: a first lens; a second lens; a third lens; an aperture; a fourth lens; a fifth lens; a sixth lens; a seventh lens; an optical filter; and a photosensitive chip. The first lens is a meniscus aspherical lens. The second lens is a meniscus aspherical lens. The third lens is a biconvex aspherical lens. The fourth lens is a meniscus aspherical lens. The fifth lens is a meniscus spherical lens. The sixth lens is a meniscus spherical lens. The seventh lens is a biconvex aspherical lens.

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Gong, Junqiang. (2017). Optical system having small perspective distortion and ultra-wide viewing angle (U.S. Patent No. 9778440). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9778440

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