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. 16, 2020
Filed:
Mar. 14, 2017
Applicant:
Ability Enterprise Co., Ltd., New Taipei, TW;
Inventors:
Assignee:
ABILITY ENTERPRISE CO., LTD., New Taipei, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 3/02 (2006.01); G02B 13/00 (2006.01); G02B 13/04 (2006.01); G02B 9/64 (2006.01);
U.S. Cl.
CPC ...
G02B 13/006 (2013.01); G02B 9/64 (2013.01); G02B 13/0045 (2013.01); G02B 13/04 (2013.01);
Abstract
An optical lens is provided. The optical lens includes, in order from an object side to an image-forming side, a first lens having negative refractive power, a second lens having negative refractive power, a third lens having refractive power and having an Abbe number Vd3, a cemented lens having refractive power, and a fourth lens having refractive power and having an Abbe number Vd4, wherein 15≤Vd3 and/or Vd3≤30, and 60≤Vd4 and/or Vd4≤85.