US4027159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined use of visible and near-IR imaging systems with far-IR detector system
Assignee: United States Department of the Navy
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Filing: 1971-10-20
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Granted: 1977-05-31
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Expires: 1991-10-20
Abstract
Abstract A light-weight, night vision system which combines a reflected-light, imag device with an audio-monitored, far infrared detection device (HANSAM) for detecting long wavelength infrared radiation from warm bodies. The imaging device may be a near-infrared image converter or a visible image intensifier such as a "starlight scope". The Hansam is attached to the imager so that the center of its field of view coincides with the center of the field of view of the imager.
Inventors
- 👤 Stephen G. Bishop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:52
CPC Classifications
G; G02; G02B; G02B23/00; G02B23/12
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
61 words
The combination of a visual imaging device and a HANSAM as a simultaneously operated integral unit, the unit being formed so that the field of view of said Hansam lies at the center of the field of view of said imaging device, with a visual image formed by said visual imaging device, and an audio output signal produced by said HANSAM.
Claim 2
Dependent Claim
61 words
The combination of a visual imaging device and a HANSAM as a simultaneously operated integral unit, the unit being formed so that the field of view of said Hansam lies at the center of the field of view of said imaging device, with a visual image formed by said visual imaging device, and an audio output signal produced by said HANSAM.
Claim 3
Dependent Claim
18 words
The combination of claim 1, wherein said two devices are separate devices which are attached to each other.
Claim 4
Dependent Claim
18 words
The combination of claim 1, wherein said visual imaging device is a device which detects reflected visible light.
Claim 5
Dependent Claim
17 words
The combination of claim 1, wherein said visual imaging device is a device which detects near-IR radiation.
Claim 6
Dependent Claim
103 words
A detecting device comprising the combination of: first detecting means for providing a visual image of the surroundings, said means having a field of view; second detecting means for passively detecting far-IR radiation emitted from objects having temperatures at or near room temperature, said second detecting means providing an audio output signal and having a field of view, said second detecting means having a chalcogenide-glass, IR detector element, said two detecting means being attached to each other so that the centers of their fields of view substantially coincide within the effective range of the device, and said two detecting devices being simultaneously operated.
Claim 7
Dependent Claim
103 words
A detecting device comprising the combination of: first detecting means for providing a visual image of the surroundings, said means having a field of view; second detecting means for passively detecting far-IR radiation emitted from objects having temperatures at or near room temperature, said second detecting means providing an audio output signal and having a field of view, said second detecting means having a chalcogenide-glass, IR detector element, said two detecting means being attached to each other so that the centers of their fields of view substantially coincide within the effective range of the device, and said two detecting devices being simultaneously operated.
Claim 8
Dependent Claim
15 words
A device as in claim 5, wherein said first detecting means detects reflected visible light.
Claim 9
Dependent Claim
14 words
A device as in claim 5, wherein said first detecting means detects near-IR radiation.
Claim 10
Dependent Claim
48 words
The combination of a visual imaging device and a far-IR, passive detecting device, the combination being a hand-held, integral, simultaneously operated unit, the unit being formed so that the centers of the fields of view of the two devices substantially coincide within the effective range of the unit.
Claim 11
Dependent Claim
48 words
The combination of a visual imaging device and a far-IR, passive detecting device, the combination being a hand-held, integral, simultaneously operated unit, the unit being formed so that the centers of the fields of view of the two devices substantially coincide within the effective range of the unit.
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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) | 1980-05-30 | 1980-11-29 | 1981-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-30 | 1984-11-29 | 1985-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-30 | 1988-11-29 | 1989-05-31 | $7700.00 | Window Closed / Lapsed |