Title:
PYROELECTRIC TYPE INFRARED-RAY DETECTOR
Document Type and Number:
Japanese Patent JP3206446
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a pyroelectric type infrared-ray detector with high sensitivity, stability and detecting ability by excluding high-frequency interference.
SOLUTION: The detector is provided with a stem 6, a cap 1 where an opening window 11 is formed cylindrically on a ceiling surface, and an infrared-ray filter 2 which is provided in the opening window 11 and selectively transmits only the infrared-ray with prescribed wave length. A pyroelectric element 3 and a substrate 5 on which an electric field effective transistor 52 is mounted are provided on the stem 6. A capacitor 521 is connected between the drain and the source of the electric field effective transistor 52 in parallel.
Inventors:
Kenichi Goto
Southeast Guangmei
Xin Hua
Southeast Guangmei
Xin Hua
Application Number:
JP22344096A
Publication Date:
September 10, 2001
Filing Date:
August 26, 1996
Export Citation:
Assignee:
Great Vacuum Co., Ltd.
International Classes:
G01J1/02; G01J1/42; G01J1/44; (IPC1-7): G01J1/42; G01J1/02; G01J1/44
Domestic Patent References:
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| JP9236486A | ||||
| JP9196755A | ||||
| JP8271333A | ||||
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Attorney, Agent or Firm:
Yoshiro Kurauchi