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US4302068A
Expired / Lapsed
US
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Infrared reflex device
Assignee: United States Department of the Army
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Filing: 1980-03-24
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Granted: 1981-11-24
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Expires: 2000-03-24
Abstract
Abstract An infrared reflex device can simulate an infrared image. The device has a latticed panel which has a first and second plurality of exposed elements. The first plurality of elements has over a predetermined infrared spectrum a spectral emissivity substantially less than soil. This first plurality is also a reflector of infrared radiation. The second plurality has greater spectral emissivity and less reflectivity than the first plurality over the predetermined infrared spectrum.
Inventors
- 👤 Jesse F. Tyroler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:50
CPC Classifications
F; F41; F41J; F41J2/00; F41G; F41G3/00; F41G3/26; F41G3/2616; F41G3/2694; Y; Y10; Y10S; Y10S428/00; Y10S428/919
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
95 words
An infrared reflex device for stimulating infrared images comprising: a latticed panel having a first and second plurality of exposed elements, said first plurality of elements having over a predetermined infrared spectrum a spectral emissivity substantially less than soil, said first plurality being a reflector of infrared radiation, said second plurality having a greater spectral emissivity and lesser reflectivity than said first plurality over said predetermined infrared spectrum said second plurality includes: an open pattern whereby an instrument having resolution insufficient to distinguish the details of said pattern would perceive it as a uniform surface.
Claim 2
Dependent Claim
95 words
An infrared reflex device for stimulating infrared images comprising: a latticed panel having a first and second plurality of exposed elements, said first plurality of elements having over a predetermined infrared spectrum a spectral emissivity substantially less than soil, said first plurality being a reflector of infrared radiation, said second plurality having a greater spectral emissivity and lesser reflectivity than said first plurality over said predetermined infrared spectrum said second plurality includes: an open pattern whereby an instrument having resolution insufficient to distinguish the details of said pattern would perceive it as a uniform surface.
Claim 3
Dependent Claim
17 words
An infrared reflex device according to claim 1 further comprising: mounting means for tiltedly setting said panel.
Claim 4
Dependent Claim
23 words
An infrared reflex device according to claim 2 wherein said panel is canted upwardly to reflect downrange infrared radiation descending from the sky.
Claim 5
Dependent Claim
26 words
An infrared reflex device according to claim 1 wherein said first plurality comprises a reflective substrate and said second plurality comprises a mask overlaying said substrate.
Claim 6
Dependent Claim
41 words
An infrared reflex device according to claim 1 further comprising: an infrared reflective plate mounted below and tilted in a direction opposite to said panel, said panel and plate being arranged to reflect downrange light from the sky and earth, respectively.
Claim 7
Dependent Claim
20 words
An infrared reflex device according to claim 5 further comprising: means for mounting said panel and plate on a vehicle.
Claim 8
Dependent Claim
40 words
An infrared reflex device according to claim 1 wherein said device is operable to simulate an infrared image of a given vehicle and wherein said panel is sized and set to appear as high and as wide as said vehicle.
Claim 9
Dependent Claim
38 words
An infrared reflex device according to claim 1 wherein said second plurality has an open pattern which is partitioned into at least two zones, each of said two zones being open a different percentage over its respective area.
Claim 10
Dependent Claim
38 words
An infrared reflex device according to claim 8 wherein said device is operable to simulate an infrared image of a given object and wherein said pattern is partitioned along boundaries equivalent to equithermal lines perceivable on said object.
Claim 11
Dependent Claim
13 words
An infrared reflex device according to claim 9 wherein said pattern is checkered.
Claim 12
Dependent Claim
24 words
An infrared reflex device according to claim 8 wherein said panel is elliptical and wherein said partitioning is a series of concentric elliptical boundaries.
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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) | 1984-11-23 | 1985-05-25 | 1985-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-23 | 1989-05-25 | 1989-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-23 | 1993-05-25 | 1993-11-24 | $7700.00 | Window Closed / Lapsed |