Title:
INFRARED IMAGE PICKUP DEVICE
Document Type and Number:
Japanese Patent JPH04286477
Kind Code:
A
Abstract:
PURPOSE: To correct fluctuation of a detector output due to fluctuation of a cooling temperature more accurately and to attain high performance with respect to the infrared image pickup device.
CONSTITUTION: The image pickup device is provided with a storage means 11 storing in advance relation between a cooling temperature and a dark current component of each light receiving element of an infrared ray detector and an arithmetic control means 15 reading a dark current component for each light receiving element from the storage means 11 based on a cooling temperature detected by a temperature sensor and subtracting the dark current component of each light receiving element read as above from the infrared ray detector.
Inventors:
AWAMOTO KENJI
DOI SHOJI
TOFUKU ISAO
ISHIZAKI HIROYUKI
DOI SHOJI
TOFUKU ISAO
ISHIZAKI HIROYUKI
Application Number:
JP5169891A
Publication Date:
October 12, 1992
Filing Date:
March 15, 1991
Export Citation:
Assignee:
FUJITSU LTD
International Classes:
H04N5/243; G06T1/00; H01J5/48; H04N5/33; H04N7/18; (IPC1-7): G06F15/62; H01J5/48; H04N5/243; H04N5/33; H04N7/18
Attorney, Agent or Firm:
Tadahiko Ito (2 outside)