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:
Dec. 24, 2024
Filed:
Mar. 30, 2022
Applicants:
Keiji Ikemori, Yokohama, JP;
Nalux Co., Ltd., Yokohama, JP;
Inventors:
Keiji Ikemori, Yokohama, JP;
Chang Shih-Yuan, Zhubei, TW;
Tetsuya Zenko, Osaka, JP;
Kenta Ishii, Osaka, JP;
Daisuke Seki, Osaka, JP;
Assignees:
[object Object];
NALUX CO., LTD., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 9/34 (2006.01); G02B 9/60 (2006.01); G02B 9/62 (2006.01); G02B 9/64 (2006.01); G02B 13/00 (2006.01);
U.S. Cl.
CPC ...
G02B 13/002 (2013.01); G02B 9/34 (2013.01); G02B 9/60 (2013.01); G02B 9/62 (2013.01); G02B 9/64 (2013.01);
Abstract
An imaging optical system wherein the number of lenses is three to seven, one to four lenses, each of which is an aspheric lens in which radius of curvature of each of both surfaces is infinity in the paraxial region and which has a power of the third-order aberration region in the peripheral area are provided, the first lens from the object side is a negative lens or the aspheric lens, the relationship