US4178514A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for generating a dynamic far infrared image
Assignee: United States Department of the Army
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Filing: 1978-04-26
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Granted: 1979-12-11
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Expires: 1998-04-26
Abstract
Abstract A high-quality dynamic far infrared image is produced by projecting a higuality visible image onto a unique transducer. The transducer consists of a very thin insulating film (approximately 500 A) with a thin coating of a good visible light absorber-far infrared emitter such as some metallic blacks.
Inventors
- 👤 Vincent T. Bly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:59
CPC Classifications
G; G02; G02F; G02F2/00; G02F2/02; F; F41; F41J; F41J2/00; F41J2/02; G01; G01J; G01J5/00; G01J5/48
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
64 words
A system for converting a visible image to an infrared image including: a visible-to-infrared transducer comprised of a thin thermally insulating film coated with a thin black coating, and means for directing a visible image onto said transducer; wherein said film is chosen from one of the group comprising: cellulose nitrate, polyvinyl alcohol, paralene, polymethyl metharcylate, vinyl formal copolymer, polyvinyl chloride, and aluminum oxide.
Claim 2
Independent Claim
64 words
A system for converting a visible image to an infrared image including: a visible-to-infrared transducer comprised of a thin thermally insulating film coated with a thin black coating, and means for directing a visible image onto said transducer; wherein said film is chosen from one of the group comprising: cellulose nitrate, polyvinyl alcohol, paralene, polymethyl metharcylate, vinyl formal copolymer, polyvinyl chloride, and aluminum oxide.
Claim 3
Dependent Claim
20 words
The system as defined in claim 1 wherein said thin film has a thickness on the order of 500 A.
Claim 4
Dependent Claim
22 words
The system as defined in claim 1 wherein said coating has a density on the order of 80×10 -6 gm/cm 2 .
Claim 5
Dependent Claim
27 words
The system as defined in claim 3 wherein said coating is chosen from one of the group comprising: gold black, silver black, bismuth black, and platinum black.
Claim 6
Dependent Claim
22 words
The system as defined in claim 2 wherein said coating has a density on the order of 80×10 -6 gm/cm 2 .
Claim 7
Dependent Claim
27 words
The system as defined in claim 5 wherein said coating is chosen from one of the group comprising: gold black, silver black, bismuth black, and platinum black.
Claim 8
Dependent Claim
27 words
The system as defined in claim 1 wherein said coating is chosen from one of the group comprising: gold black, silver black, bismuth black, and platinum black.
Claim 9
Dependent Claim
62 words
A visible-to-far infrared transducer consisting of a thermally insulating film with a thickness on the order of 500 A coated with a black coating having a density on the order of 80×10 -6 gm/cm 2 ; wherein said film is chosen from one of the group comprising: cellulose nitrate, polyvinyl alcohol, paralene, polymethyl metharcylate, vinyl formal copolymer, polyvinyl chloride, and aluminum oxide.
Claim 10
Dependent Claim
62 words
A visible-to-far infrared transducer consisting of a thermally insulating film with a thickness on the order of 500 A coated with a black coating having a density on the order of 80×10 -6 gm/cm 2 ; wherein said film is chosen from one of the group comprising: cellulose nitrate, polyvinyl alcohol, paralene, polymethyl metharcylate, vinyl formal copolymer, polyvinyl chloride, and aluminum oxide.
Claim 11
Dependent Claim
27 words
The transducer as recited in claim 8 wherein said coating is chosen from one of the groups comprising: gold black, silver black, bismuth black, and platinum black.
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) | 1982-12-10 | 1983-06-11 | 1983-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-10 | 1987-06-11 | 1987-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-10 | 1991-06-11 | 1991-12-11 | $7700.00 | Window Closed / Lapsed |