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:
Nov. 22, 2022
Filed:
Feb. 07, 2020
Kaneka Corporation, Osaka, JP;
Kunta Yoshikawa, Settsu, JP;
Takashi KuchIyama, Settsu, JP;
KANEKA CORPORATION, Osaka, JP;
Abstract
A photoelectric conversion element for detecting the spot size of incident light. The photoelectric conversion element includes a photoelectric conversion substrate having two principal surfaces, and comprises a first sensitive part and a second sensitive part that have mutually different photoelectric conversion characteristics. When a sensitive region appearing in the principal surface of the first sensitive part is defined as a first sensitive region, and a sensitive region appearing in the principal surface of the second sensitive part is defined as a second sensitive region, the first sensitive region is configured to receive at least a portion of light incident on a light-receiving surface and to decrease, proportionally to enlargement in an irradiation region of the principal surface irradiated with the incident light, the ratio of the first sensitive region to the second sensitive region in the irradiation region.