US4052616A
Expired / Lapsed
US
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Infrared radiation-burglary detector
Assignee: Cerberus AG
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Filing: 1976-11-04
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Granted: 1977-10-04
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Expires: 1996-11-04
Abstract
Abstract An infrared radiation-burglary detector comprising radiation-focusing means and a radiation receiver. A bunch of radiation-conducting elements is provided, the radiation inlet openings of which are arranged at the focal surface of the radiation-focusing means and the radiation outlets of which are arranged in front of the radiation receiver.
Inventors
- 👤 Hansjurg Keller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:18
CPC Classifications
G; G01; G01J; G01J1/00; G01J1/02; G01J1/04; G01J1/0407; G01J1/0411; G01J1/0425; G08; G08B; G08B13/00; G08B13/18; G08B13/189; G08B13/19; G08B13/193; G01J1/0266; Y; Y10; Y10S; Y10S250/00; Y10S250/01
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
55 words
An infrared radiation-burglary detector comprising radiation-focusing means having a focal surface, a radiation receiver, a bundle of radiation-conducting elements having radiation inlet openings and radiation outlet openings, the radiation inlet openings being located substantially at the focal surface of the radiation-focusing means and the radiation outlet openings being located in front of the radiation receiver.
Claim 2
Dependent Claim
55 words
An infrared radiation-burglary detector comprising radiation-focusing means having a focal surface, a radiation receiver, a bundle of radiation-conducting elements having radiation inlet openings and radiation outlet openings, the radiation inlet openings being located substantially at the focal surface of the radiation-focusing means and the radiation outlet openings being located in front of the radiation receiver.
Claim 3
Dependent Claim
57 words
The detector as defined in claim 1, wherein the radiation-focusing means are defined by part of an internally reflecting spherical surface, the radiation inlet openings being arranged at the focal surface of the spherical surface, said focal surface comprising a spherical surface of approximately half the radius of said internally reflecting spherical surface of said radiation-focusing means.
Claim 4
Dependent Claim
33 words
The detector as defined in claim 2, wherein the radiation receiver is arranged approximately at the center of the internally reflecting spherical surface, the radiation-conducting elements each are of approximately the same length.
Claim 5
Dependent Claim
46 words
The detector as defined in claim 3, wherein the radiation receiver is arranged at the center of the sphere defined by at least part of the spherical surface, and the radiation-conducting elements possess a length which approximately corresponds to half of the radius of the sphere.
Claim 6
Dependent Claim
46 words
The detector as defined in claim 2, wherein the radiation receiver is arranged at the center of the sphere defined by at least part of the spherical surface, and the radiation-conducting elements possess a length which approximately corresponds to half of the radius of the sphere.
Claim 7
Dependent Claim
25 words
The detector as defined in claim 2, wherein the radiation-focusing means comprises a body having an internally reflecting cavity and constituting part of a sphere.
Claim 8
Dependent Claim
14 words
The detector as defined in claim 6, wherein the body is formed of plastic.
Claim 9
Dependent Claim
14 words
The detector as defined in claim 6, wherein the body is formed of glass.
Claim 10
Dependent Claim
18 words
The detector as defined in claim 2, further including diaphragm means arranged in front of the radiation-focusing means.
Claim 11
Dependent Claim
14 words
The detector as defined in claim 2, wherein the radiation-focusing means comprises a hemisphere.
Claim 12
Dependent Claim
18 words
The detector as defined in claim 10, further including diaphragm means arranged in front of the radiation-focusing means.
Claim 13
Dependent Claim
37 words
The detector as defined in claim 10, wherein the radiation receiver is arranged at the center of the hemisphere and the radiation-conducting elements possess a length which approximately corresponds to half of the radius of the hemisphere.
Claim 14
Dependent Claim
29 words
The detector as defined in claim 10, wherein the radiation-receiver is arranged approximately at the center of the hemisphere, the radiation-conducting elements each are of approximately the same length.
Claim 15
Dependent Claim
18 words
The detector as defined in claim 1, further including diaphragm means arranged in front of the radiation-focusing means.
Claim 16
Dependent Claim
15 words
The detector as defined in claim 1, wherein the radiation-focusing means comprises a collecting lens.
Claim 17
Dependent Claim
15 words
The detector as defined in claim 15, wherein the collecting lens is an echelon lens.
Claim 18
Dependent Claim
42 words
The detector as defined in claim 1, wherein the radiation-focusing means comprises a number of facet-shaped collecting lenses arranged at a substantially spherical surface, said collecting lenses having focal surfaces which at least approximately adjoin one another to form a spherical surface.
Claim 19
Dependent Claim
20 words
The detector as defined in claim 17, wherein the facet-shaped arranged collecting lenses assume the configuration of approximately a hemisphere.
Claim 20
Dependent Claim
31 words
The detector as defined in claim 17, wherein the radiation receiver is arranged approximately at the center of said spherical surface, the radiation-conducting elements each are of approximately the same length.
Claim 21
Dependent Claim
18 words
The detector as defined in claim 19, further including diaphragm means arranged in front of the radiation-focusing means.
Claim 22
Dependent Claim
30 words
The detector as defined in claim 18, wherein the radiation receiver is arranged approximately at the center of the hemisphere, the radiation-conducting elements each are of approximately the same length.
Claim 23
Dependent Claim
34 words
The detector as defined in claim 1, wherein the radiation-conducting elements comprise optical fibers of a radiation pervious material within which there occurs conductance of the radiation by means of an internal total reflection.
Claim 24
Dependent Claim
19 words
The detector as defined in claim 1, wherein the radiation-conducting elements are constructed as internally-reflecting tubes of predetermined cross-section.
Claim 25
Dependent Claim
17 words
The detector as defined in claim 1, wherein the radiation-conducting elements comprise waveguide means for electromagnetic waves.
Claim 26
Dependent Claim
18 words
The detector as defined in claim 1, wherein the radiation inlets of the radiation-conducting elements possess directional characteristic.
Claim 27
Dependent Claim
13 words
The detector as defined in claim 1, wherein the radiation-conducting elements are flexible.
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) | 1980-10-03 | 1981-04-04 | 1981-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-03 | 1985-04-04 | 1985-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-03 | 1989-04-04 | 1989-10-04 | $7700.00 | Window Closed / Lapsed |