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. 12, 1994
Filed:
May. 10, 1991
Tsutomu Nakamura, Ina, JP;
Olympus Optical Co., Ltd., Tokyo, JP;
Abstract
A photoelectric conversion device comprises a control circuit for applying a control signal to a control electrode of a photoelectric transducer, an operating point detection circuit for receiving an output signal from the photoelectric transducer and inverting an output state thereof depending on a level of the output signal, and a sample/hold circuit controlled by an output of the operating point detection circuit to hold a signal level corresponding to the control signal as developed when the output state of the operating point detection circuit is inverted, the signal held by the sample/hold circuit being read as a photoelectrically converted output. Photoelectric conversion characteristics thereby exhibits good linearity.