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:
May. 16, 2023

Filed:

Nov. 13, 2019
Applicant:

Rays Optics Inc., Hsinchu County, TW;

Inventors:

Chen-Cheng Lee, Hsinchu County, TW;

Yu-Chia Lu, Hsinchu County, TW;

Ju-Hsin Yang, Hsinchu County, TW;

Assignee:

Rays Optics Inc., Hsinchu County, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 9/34 (2006.01); G02B 3/04 (2006.01); G02B 27/00 (2006.01); G02B 13/18 (2006.01); G02B 3/02 (2006.01); G02B 9/62 (2006.01); G02B 9/42 (2006.01); G02B 9/64 (2006.01);
U.S. Cl.
CPC ...
G02B 9/34 (2013.01); G02B 3/04 (2013.01); G02B 3/02 (2013.01); G02B 9/42 (2013.01); G02B 9/62 (2013.01); G02B 9/64 (2013.01); G02B 13/18 (2013.01); G02B 27/0025 (2013.01);
Abstract

A fixed focal imaging lens includes two lens sets and an aperture stop. One of the two lens sets is disposed between a magnified side and the aperture stop. The other one of the two lens sets is disposed between the aperture stop and a minified side. The lens set disposed between the magnified side and the aperture stop includes an aspheric lens and a compound lens, wherein the aspheric lens is a lens closest to the magnified side in the lens set, and the compound lens includes a plurality of lenses combined together. The lens set disposed between the aperture stop and the minified side includes a compound lens and an aspheric lens, wherein the compound lens includes a plurality of lenses combined together, and the aspheric lens is a lens closest to the minified side in the lens set.


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