Title:
光検出装置
Document Type and Number:
Japanese Patent JP4473425
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide such a photodetector for extracting the contour of a moving object in an inputted optical image, that an area to be occupied by a circuit part per pixel is reduced. SOLUTION: This device is provided with N units 1001-100N and a contour extracting circuit 40. Each unit 100n has a mutually similar configuration and is provided with M photodetecting cells 101,n-10M,n, integration circuit 20n, A/D converting circuit 30n, switch element SWn01, switch element SWn02 and switch element SWn03. M×N photodetecting cells 101,1-10M,N are two-dimensionally arranged over M rows and N columns and the photodetecting cell 10m,n is positioned on the m-th row and the n-th column. The capacitance value of the integration capacitor part of the integration circuit 20n is equal with the capacitance value of the cell capacitor part of the photodetecting cell 10m,n.
Inventors:
Hiroshi Tanaka
Naohisa Kousaka
Kazuki Fujita
Hiroo Yamamoto
Seiichiro Mizuno
Naohisa Kousaka
Kazuki Fujita
Hiroo Yamamoto
Seiichiro Mizuno
Application Number:
JP2000232006A
Publication Date:
June 02, 2010
Filing Date:
July 31, 2000
Export Citation:
Assignee:
Hamamatsu Photonics Co., Ltd.
International Classes:
G01B11/24; G01B11/245; G01J1/02; G01J1/44; H01L27/146; H01L31/10; H04N5/335; H04N5/369; H04N5/374; H04N5/378
Domestic Patent References:
| JP58070133A | ||||
| JP9051476A | ||||
| JP62283773A | ||||
| JP62202684A | ||||
| JP9021879A | ||||
| JP9131337A | ||||
| JP6235658A | ||||
| JP5322650A |
Attorney, Agent or Firm:
Yoshiki Hasegawa
Tatsuya Shioda
Shiro Terasaki
Masatoshi Shibata
Tatsuya Shioda
Shiro Terasaki
Masatoshi Shibata