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:
Jul. 08, 2025
Filed:
Apr. 15, 2022
Applicant:
Young Optics Inc., Hsinchu, TW;
Inventors:
Pei-Ching Liu, Hsinchu, TW;
Kuo-Chuan Wang, Hsinchu, TW;
Assignee:
YOUNG OPTICS INC., Hsinchu Science Park, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 9/64 (2006.01); G02B 3/00 (2006.01); G02B 13/14 (2006.01);
U.S. Cl.
CPC ...
G02B 9/64 (2013.01); G02B 3/005 (2013.01); G02B 13/143 (2013.01);
Abstract
A fixed-focus lens includes an anti-radiation first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens arranged in order in a direction. An aperture stop is disposed between the first lens and the fourth lens. A ratio of a lens diameter of the first lens to an overall length is within a range of 0.4 to 0.5, where the overall length is an axial distance between an outer surface of the first lens and an outer surface of the seventh lens. Each of the first lens to the seventh lens is a spherical glass lens.