Patent US4456919A successfully refreshed from Google Patents.
US4456919A
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Thermopile type detector with temperature sensor for cold junction
Assignee: Horiba Ltd
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Filing: 1981-12-16
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Granted: 1984-06-26
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Expires: 2001-12-16
Abstract
Abstract A thermopile type detector which is constituted by an electrically insulating film, a thermopile supported on the film, a semiconductor substrate supporting the film, and a temperature sensing element on the surface of the substrate on which the film is supported and in the neighborhood of a cold junction of the thermopile. The temperature on the substrate immediately adjacent a cold junction of the thermopile can be measured for use in compensating the output of the thermopile for the changes in temperature of the cold junction. The temperature sensing element can be a semiconductor material such as a diode or a transistor forming a semiconductor with the substrate.
Inventors
- 👤 Katsuhiko Tomita
- 👤 Tetsuo Shimizu
- 👤 Masaichi Bandoh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:32
CPC Classifications
H; H10; H10N; H10N10/00; H10N10/10; H10N10/17; G; G01; G01J; G01J5/00; G01J5/10; G01J5/12; G01K; G01K7/00; G01K7/01; G01K7/02; G01K7/10; G01K7/12
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
101 words
In a thermopile type detector having an electrically insulating film, a thermopile supported on said film, a substrate supporting said film, and a temperature sensing element for sensing the temperature of said substrate on which said film is supported in the neighborhood of a cold junction of said thermopile for use in compensating the output of said thermopile, the improvement in which said substrate is made of a semiconductor material and a semiconductive temperature response element is mounted on said semiconductor substrate with a semiconductor junction therebetween and the semiconductor temperature response element and said substrate constituting the temperature sensing element.
Claim 2
Dependent Claim
101 words
In a thermopile type detector having an electrically insulating film, a thermopile supported on said film, a substrate supporting said film, and a temperature sensing element for sensing the temperature of said substrate on which said film is supported in the neighborhood of a cold junction of said thermopile for use in compensating the output of said thermopile, the improvement in which said substrate is made of a semiconductor material and a semiconductive temperature response element is mounted on said semiconductor substrate with a semiconductor junction therebetween and the semiconductor temperature response element and said substrate constituting the temperature sensing element.
Claim 3
Dependent Claim
16 words
A detector as claimed in claim 1 in which said temperature response element is a diode.
Claim 4
Dependent Claim
16 words
A detector as claimed in claim 1 in which said temperature response element is a transistor.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-06-26 | 1987-12-26 | 1988-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-26 | 1991-12-26 | 1992-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-26 | 1995-12-26 | 1996-06-26 | $7700.00 | Window Closed / Lapsed |