US3581092A
Expired / Lapsed
US
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Pyroelectric detector array
Assignee: Barnes Engineering Co
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Filing: 1969-04-09
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Granted: 1971-05-25
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Expires: 1989-04-09
Abstract
Abstract An array of thermal detectors for infrared radiation measurement is fabricated on a single piece of pyroelectric material. A common transparent electrode to the infrared radiation is applied thereto and positioned on one side of the layer of pyroelectric material facing the incident radiation, and a plurality of individual field-defining electrodes are mounted on the other side of the pyroelectric material. This structure is simpler and more reliable than an assembly of isolated detectors and is easier to fabricate by using vacuum-deposited leads on the mounting substrate.
Inventors
- 👤 Denton Pearsall
- 👤 Gerald Jankowitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:22
CPC Classifications
G; G01; G01J; G01J5/00; G01J5/10; G01J5/34; G01K; G01K7/00; G01K7/003; H; H10; H10N; H10N15/00; H10N15/10
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
134 words
An infrared pyroelectric detector array having a plurality of individual detector elements oN a common section of detector material for the detection of infrared radiation from a field of view comprising a. a common layer of pyroelectric material, b. a single, common, transparent electrode mounted on the side of said layer of pyroelectric material facing the direction in which infrared radiation is applied thereto, said single electrode being transparent to the infrared radiation applied thereto which is to be detected by said array, c. a plurality of separate, individual field-defining electrodes mounted on said layer of pyroelectric material opposite said common electrode forming therewith a plurality of individual detector elements, and d. an output lead connected to said common electrode and separate output leads connected to each of said plurality of individual field-defining electrodes.
Claim 2
Dependent Claim
134 words
An infrared pyroelectric detector array having a plurality of individual detector elements oN a common section of detector material for the detection of infrared radiation from a field of view comprising a. a common layer of pyroelectric material, b. a single, common, transparent electrode mounted on the side of said layer of pyroelectric material facing the direction in which infrared radiation is applied thereto, said single electrode being transparent to the infrared radiation applied thereto which is to be detected by said array, c. a plurality of separate, individual field-defining electrodes mounted on said layer of pyroelectric material opposite said common electrode forming therewith a plurality of individual detector elements, and d. an output lead connected to said common electrode and separate output leads connected to each of said plurality of individual field-defining electrodes.
Claim 3
Dependent Claim
40 words
An infrared pyroelectric detector array set forth in claim 1 including a substrate of insulating material having a lead pattern deposited thereon, said array mounted on said substrate with said separate output leads in conductive relation with said lead pattern.
Claim 4
Dependent Claim
56 words
An infrared pyroelectric array set forth in claim 1 including a substrate of insulating material having a depression therein, an insulating layer covering said depression, a lead pattern positioned on said substrate and said insulating layer, with said array mounted on said insulating layer with said separate output leads in conductive relation with said lead pattern.
Claim 5
Dependent Claim
33 words
An infrared pyroelectric array set forth in claim 3 wherein said lead pattern includes an electrical resistance element for each of said field-defining electrodes and a field-effect transistor connected to each resistance element.
Claim 6
Dependent Claim
36 words
An infrared pyroelectric detector array set forth in claim 2 wherein said layer of pyroelectric electric material and its associated electrodes are positioned centrally on said substrate with said lead pattern extending on both sides thereof.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |