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:
Oct. 14, 2025
Filed:
Jan. 18, 2021
Sony Semiconductor Solutions Corporation, Kanagawa, JP;
Koya Tsuchimoto, Nagasaki, JP;
Shin Kitano, Kanagawa, JP;
Yusuke Murakawa, Nagasaki, JP;
Makoto Nakamura, Nagasaki, JP;
Takuya Hanada, Nagasaki, JP;
Yuki Noda, Nagasaki, JP;
Sony Semiconductor Solutions Corporation, Kanagawa, JP;
Abstract
A solid-state image sensor according to the present disclosure includes a photodiode, a conversion circuit (current-voltage conversion circuit), a luminance change detection circuit (comparator), and a light-shielding unit (light-shielding film). The photodiode photoelectrically converts incident light to generate a photocurrent. The conversion circuit (current-voltage conversion circuit) converts the photocurrent into a voltage signal. The luminance change detection circuit (comparator) detects a change in luminance of the incident light on the basis of the voltage signal. The light-shielding unit (light-shielding film) shields incidence of light on the impurity diffusion region included in a circuit that inputs the voltage signal to the luminance change detection circuit (comparator).