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.

Date of Patent:
Jun. 25, 2024

Filed:

Mar. 16, 2021
Applicant:

Hon Hai Precision Industry Co., Ltd., New Taipei, TW;

Inventors:

Ya-Lan Feng, New Taipei, TW;

Chun-Cheng Ko, New Taipei, TW;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 9/64 (2006.01); G02B 1/04 (2006.01); G02B 13/00 (2006.01);
U.S. Cl.
CPC ...
G02B 13/0045 (2013.01); G02B 1/041 (2013.01); G02B 9/64 (2013.01);
Abstract

An optical lens utilizing individual lenses which are, all but one, made from plastic materials but with an optical clarity unaffected by temperature swings, includes first to sixth lenses. The first to sixth lenses of the optical lens meets conditions of composite formula 4.55<|EFL2|/|EFL1|<4.95, 1.91<(N1−N3)/(N2−N3)<1.93, 0.16<(V1−V3)/(V2−V3)<0.20, 0.95<(N4−N6)/(N5−N6)<1.05 and 0.95<(V4−V6)/(V5−V6)<1.05. EFL1 is a focal length of the first to third lenses, and EFL2 is a focal length of the fourth to sixth lenses. N1, N2, N3, N4, N5, and N6 are respective refractive indexes of the first to sixth lenses, and V1, V2, V3, V4, V5, and V6 are their respective Abbe numbers.


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