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:
Apr. 14, 2025
Filed:
Dec. 09, 2021
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Satoshi Ito, Tochigi, JP;
Mikio Kobayashi, Tochigi, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 9/12 (2005.12); G02B 5/00 (2005.12); G02B 13/00 (2005.12); H04N 23/50 (2022.12); H04M 1/02 (2005.12);
U.S. Cl.
CPC ...
G02B 9/12 (2012.12); G02B 5/005 (2012.12); G02B 13/0085 (2012.12); H04N 23/50 (2022.12); H04M 1/0202 (2012.12); H04N 23/555 (2022.12);
Abstract
An optical system includes, in order from an object side to an image side, a first unit, a second unit, and a third unit. The first unit includes a first substrate, and a first lens having a negative refractive power and disposed on the image side of the first substrate. The second unit includes a second substrate, and a second lens having a positive refractive power and disposed on the object side of the second substrate. The third unit includes a third substrate, and a third lens having a positive refractive power and disposed on the object side of the third substrate.