Patent US2963765A successfully refreshed from Google Patents.
Patent US4960995A successfully refreshed from Google Patents.
US4960995A
Expired / Lapsed
US
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Radiation detector
Assignee: ABB AG
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Filing: 1988-12-27
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Granted: 1990-10-02
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Expires: 2008-12-27
Abstract
Abstract A radiation detector, serving as an infrared movement monitor, which is reactive to thermal radiation includes a housing having a window admitting the radiation and optics. The window having a size being coordinated with the angle of coverage of the optics disposed behind it. The optics focussing the radiation onto an optical sensor, preferably through a Fresnel lens. The window having a frame for accepting and guiding at least one masking element formed of a strip-shaped plastic film diminishing the infrared radiation and being slideably displaced in a guide channel along the window for covering the optics in a variable sub-region thereof.
Inventors
- 👤 Adalbert Neumann
- 👤 Heinrich Stumpf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:52
CPC Classifications
G; G08; G08B; G08B13/00; G08B13/18; G08B13/189; G08B13/19; Y; Y10; Y10S; Y10S250/00; Y10S250/01
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
100 words
Radiation detector, serving as an infrared movement monitor, which is reactive to thermal radiation, comprising a housing having a window admitting the radiation, optics, the window having a size being coordinated with the angle of coverage of the optics disposed behind it, the optics focussing the radiation onto an optical sensor, preferably through a Fresnel lens, the window having a frame for accepting and guiding at least one masking element formed of a strip-shaped plastic film diminishing the infrared radiation and being slideably displaceable in a guide channel along the window for covering the optics in a variable sub-region thereof.
Claim 2
Dependent Claim
100 words
Radiation detector, serving as an infrared movement monitor, which is reactive to thermal radiation, comprising a housing having a window admitting the radiation, optics, the window having a size being coordinated with the angle of coverage of the optics disposed behind it, the optics focussing the radiation onto an optical sensor, preferably through a Fresnel lens, the window having a frame for accepting and guiding at least one masking element formed of a strip-shaped plastic film diminishing the infrared radiation and being slideably displaceable in a guide channel along the window for covering the optics in a variable sub-region thereof.
Claim 3
Dependent Claim
39 words
Detector according to claim 1, wherein the guide channel reaches beyond the region of the window lying at the front face of the housing and is continued further on both side at the adjoining side face of the housing.
Claim 4
Dependent Claim
57 words
Detector according to claim 2, wherein on at least one side, the guide channel has a first opening through which the masking element can be pushed, including at least one second opening which facilitates grasping of the masking element, and by means of which it is brought into the desired position before a sub-region of the optics.
Claim 5
Dependent Claim
45 words
Detector according to claim 1, wherein the masking element, designed as a strip, limits the angle of coverage of the optics with a first end, and at its second end, which protrudes from the opening, can be grasped by hand, and be varied in position.
Claim 6
Dependent Claim
45 words
Detector according to claim 1, wherein, in a line extending the guide channel a pocket lying in the same direction is formed, for receiving, after adjustment, an end of the flexible masking element that can be grasped by hand, and taken out again as required.
Claim 7
Dependent Claim
77 words
Detector according to claim 1, Including a manipulator, wherein the end of the strip-shaped masking element, not protruding into the region of the window is attached to the manipulator, with a stem projecting at approximately a right angle to the masking element, which protrudes from the guide channel and wherein, when the masking element is displaced, the manipulator moves in a slot opening the guide channel outwards, the guide channel being narrower than the strip-shaped masking element.
Claim 8
Dependent Claim
21 words
Detector according to claim 1, wherein the masking element limits the angle of coverage, and is disposed in a horizontal plane.
Claim 9
Dependent Claim
15 words
Detector according to claim 1, wherein the frame includes the housing with the guide channel.
Claim 10
Dependent Claim
144 words
Radiation detector, serving as an infrared movement monitor, which is reactive to thermal radiation, comprising a housing having a window admitting the radiation, optics, the window having a size being coordinated with the angle of coverage of the optics disposed behind it, the optics focussing the radiation onto an optical sensor, preferably through a Fresnel lens, the window having a frame for accepting and guiding at least one masking element formed of a strip-shaped plastic film diminishing the infrared radiation and being slidably displaceable in a guide channel along the window for covering the optics in a variable sub-region thereof, wherein the frame forms together with the guide channel a separate part, which can be mounted on the housing so that it does not affect the region of the window, including mounting elements provided at the housing, and feed lines lying outside the housing.
Claim 11
Dependent Claim
144 words
Radiation detector, serving as an infrared movement monitor, which is reactive to thermal radiation, comprising a housing having a window admitting the radiation, optics, the window having a size being coordinated with the angle of coverage of the optics disposed behind it, the optics focussing the radiation onto an optical sensor, preferably through a Fresnel lens, the window having a frame for accepting and guiding at least one masking element formed of a strip-shaped plastic film diminishing the infrared radiation and being slidably displaceable in a guide channel along the window for covering the optics in a variable sub-region thereof, wherein the frame forms together with the guide channel a separate part, which can be mounted on the housing so that it does not affect the region of the window, including mounting elements provided at the housing, and feed lines lying outside the housing.
Claim 12
Dependent Claim
25 words
Detector according to claim 1, including flexible clamping elements on the frame embracing the housing, with which it may be mounted self-adhesively on the housing.
Claim 13
Dependent Claim
30 words
Detector according to claim 1, wherein the frame encloses all six sides of an essentially cuboid housing, at and least two faces of the housing remain accessible thereby via cutouts.
Claim 14
Dependent Claim
22 words
Detector according to claim 1, including at least one of an infrared-transparent and an infrared-attenuating material for forming the strip-shaped masking element..
Claim 15
Dependent Claim
53 words
Detector according to claim 1, wherein the guide channel is dimensioned in relation to the masking element so that it is possible to lay a plurality of infrared-attenuating films one above the other, the laying of the films one above the other, the layers of the films one above the other are flush.
Claim 16
Dependent Claim
140 words
Radiation detector, serving as an infrared movement monitor, which is reactive to thermal radiation, comprising a housing having a window admitting the radiation, optics, the window having a size being coordinated with the angle of coverage of the optics disposed behind it, the optics focussing the radiation onto an optical sensor, preferably through a Fresnel lens, the window having a frame for accepting and guiding at least one masking element formed of a strip-shaped plastic film diminishing the infrared radiation and being slidably displaceable in a guide channel along the window for covering the optics in a variable sub-region thereof, wherein the guide channel is dimensioned in relation to the masking element, so that it is possible to lay a plurality of infrared-attenuating films one above the other, the layers of the films one above the other being mutually offset.
Claim 17
Dependent Claim
140 words
Radiation detector, serving as an infrared movement monitor, which is reactive to thermal radiation, comprising a housing having a window admitting the radiation, optics, the window having a size being coordinated with the angle of coverage of the optics disposed behind it, the optics focussing the radiation onto an optical sensor, preferably through a Fresnel lens, the window having a frame for accepting and guiding at least one masking element formed of a strip-shaped plastic film diminishing the infrared radiation and being slidably displaceable in a guide channel along the window for covering the optics in a variable sub-region thereof, wherein the guide channel is dimensioned in relation to the masking element, so that it is possible to lay a plurality of infrared-attenuating films one above the other, the layers of the films one above the other being mutually offset.
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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) | 1993-10-01 | 1994-04-02 | 1994-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-10-01 | 1998-04-02 | 1998-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-10-01 | 2002-04-02 | 2002-10-02 | $7700.00 | Window Closed / Lapsed |