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:
Jun. 03, 2025
Filed:
Oct. 19, 2022
Kyocera Soc Corporation, Kanagawa, JP;
Takao Tanabe, Kanagawa, JP;
KYOCERA SOC Corporation, Yokohama, JP;
Abstract
An objective lens includes first to ninth lenses arranged in this order from a magnification side and includes no cemented lens. The first lens consists of a meniscus lens having a negative refractive power, the second lens consists of a biconcave lens, the third lens consists of a meniscus lens having a positive refractive power, the fourth lens consists of a biconvex lens, the fifth lens consists of a meniscus lens having a negative refractive power, the sixth lens consists of a biconvex lens, the seventh lens consists of a lens that has an arbitrary shape and has a positive refractive power, the eighth lens consists of a meniscus lens having a positive refractive power; and the ninth lens consists of a meniscus lens having a positive refractive power. The ninth lens has a thickness 1.5 times to 3 times a focal length of the objective lens.