US4029521A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoelectric detector
Assignee: Yeda Research and Development Co Ltd
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Filing: 1975-10-03
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Granted: 1977-06-14
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Expires: 1995-10-03
Abstract
Abstract A fast thermoelectric detector comprising a plurality of thermocouple junctions deposited on an inert supporting surface, said thermocouples being connected in series, the arrangement being such that an equal number of hot junctions and of cold junctions are distributed in a substantially uniform manner per unit area of the entire active area of the detector covered with thermocouple junctions. The thermocouples are advantageously arranged in a meandering path in a plurality of rows.
Inventors
- 👤 Uzi Korn
- 👤 Shmuel Shtrickman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:39
CPC Classifications
G; G01; G01K; G01K7/00; G01K7/02; G01J; G01J5/00; G01J5/10; G01J5/12; H; H10; H10N; H10N10/00; H10N10/80; H10N10/81; H10N10/817
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
137 words
A fast thermoelectric detector comprising, in combination: a plurality of thermocouple junctions connected in series in a meandering path consisting of a plurality of rows, each row including a plurality of substantially reactangular deposits of two different thermoelectrically active materials having overlap between deposits of said different materials which define said junctions; a thin support structure, said deposits being located on said thin inert support structure; and a tunnel structure on a thermally conducting base and defining a plurality of tunnels, said support structure being above said tunnel structure and said tunnels being substantially perpendicular to said rows of said meandering path of said junctions, said tunnels being located beneath those of said junctions which are hot junctions and material of said base being in good thermal contact beneath those of said junctions which are cold junctions.
Claim 2
Dependent Claim
137 words
A fast thermoelectric detector comprising, in combination: a plurality of thermocouple junctions connected in series in a meandering path consisting of a plurality of rows, each row including a plurality of substantially reactangular deposits of two different thermoelectrically active materials having overlap between deposits of said different materials which define said junctions; a thin support structure, said deposits being located on said thin inert support structure; and a tunnel structure on a thermally conducting base and defining a plurality of tunnels, said support structure being above said tunnel structure and said tunnels being substantially perpendicular to said rows of said meandering path of said junctions, said tunnels being located beneath those of said junctions which are hot junctions and material of said base being in good thermal contact beneath those of said junctions which are cold junctions.
Claim 3
Dependent Claim
103 words
A thermoelectric detector according to claim 1, wherein one of said active materials has a higher electrical resistivity than the other of said actibe materials, said material of higher electrical resistivity being in the form of a continuous meandering path whereas the other active material is in the form of spaced rectangular deposits on said first material, centers of said spaced rectangular deposits being located respective to each other in a pattern, both ends of each of said spaced rectangular deposits defining said hot and cold junctions respectively, said hot junctions being located above respective said tunnels in said material of said base.
Claim 4
Dependent Claim
93 words
A detector according to claim 2, including focusing means provided for selective intensification of effects of incoming radiation and for focusing same on said hot junctions and for decreasing effect of radiation on said cold junctions, said focusing means being in form of plurality of miniature lenses of elongated shape and cylindrical form, said lenses being located above said thermoelectric materials with the cylindrical axis of each lens being parallel to said tunnels in said material of said base and located directly above the center line of each respective one of said tunnels.
Claim 5
Dependent Claim
27 words
A detection device according to claim 1, combined with means constituting parts of a heterodyne receiver, said detection device being the mixing element in said heterodyne receiver.
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) | 1980-06-13 | 1980-12-13 | 1981-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-13 | 1984-12-13 | 1985-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-13 | 1988-12-13 | 1989-06-14 | $7700.00 | Window Closed / Lapsed |