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:
Jul. 07, 2020
Filed:
Mar. 13, 2019
Olympus Corporation, Hachioji-shi, Tokyo, JP;
Keiichiro Nakajima, Tokyo, JP;
Olympus Corporation, Tokyo, JP;
Abstract
The disclosed technology is directed to a light detecting apparatus used in an image acquiring apparatus. The image acquiring apparatus comprises a light receiving element that outputs a current according to a light amount of incident light. A current-voltage conversion circuit converts the current output from the light receiving element to a voltage signal. The current-voltage conversion circuit includes an operational amplifier and feedback resistance, feedback capacitance, and at least one diode that are connected in parallel between an inverting terminal and an output terminal of the operational amplifier. The diode is connected to have a forward direction from the inverting terminal toward the output terminal, and following conditional expressions are satisfied, G=RB=1/(2πR(C+C/n)) and V>n×V>G×I.