EP0014825A2 - Dispositif optique pour la détection passive à rayonnement infrarouge de mouvement - Google Patents

Dispositif optique pour la détection passive à rayonnement infrarouge de mouvement Download PDF

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Publication number
EP0014825A2
EP0014825A2 EP80100101A EP80100101A EP0014825A2 EP 0014825 A2 EP0014825 A2 EP 0014825A2 EP 80100101 A EP80100101 A EP 80100101A EP 80100101 A EP80100101 A EP 80100101A EP 0014825 A2 EP0014825 A2 EP 0014825A2
Authority
EP
European Patent Office
Prior art keywords
mirror
detector
directional
arrangement according
view
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP80100101A
Other languages
German (de)
English (en)
Other versions
EP0014825A3 (fr
Inventor
Thomas Dipl.-Phys. Herwig
Gerhard Dipl.-Ing. Dönges
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Heimann GmbH
Original Assignee
Heimann GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Heimann GmbH filed Critical Heimann GmbH
Publication of EP0014825A2 publication Critical patent/EP0014825A2/fr
Publication of EP0014825A3 publication Critical patent/EP0014825A3/fr
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/19—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using infrared-radiation detection systems
    • G08B13/193—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using infrared-radiation detection systems using focusing means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S250/00—Radiant energy
    • Y10S250/01—Passive intrusion detectors

Definitions

  • the invention relates to an arrangement for a passive infrared motion detector, in which a plurality of reflecting surfaces are arranged in such a way that they direct the infrared radiation coming from a plurality of fields of view onto a detector.
  • the infrared motion detector registers a person entering the room monitored by him or an object moving in it due to the interference caused by the infrared radiation in the background.
  • An electronic device evaluates the characteristic change in the infrared radiation detected by the detector for alarm purposes.
  • the room is divided into several fields of view, so that fields of view and dark fields, i.e. Alternate solid angles not detected by the detector.
  • the change in the movement of the object to be registered from a field of view to a dark field and vice versa causes the evaluable change in the infrared radiation falling on the detector.
  • the present invention is based on the object of designing the beam guidance for a motion detector in such a way that the disadvantages of facet optics described are avoided.
  • the entirety of the fields of vision should be able to cover a larger solid angle than the opening angle of the detector.
  • the individual fields of vision should not overlap each other.
  • a large focal length should be possible without increasing the overall length of the device.
  • the functional separation of beam splitting and beam - focusing results in a high degree of freedom, a partly arbitrarily to be arranged pointing mirror rays from fields of view under any meridional and azimuthal angles in a small solid angle p ro field of view to the focusing system for directing and arbitrarily with respect to the other part of this single focusing system according to the requirements of sensitivity and design focal length.
  • the individual fields of view can be kept completely free of intersections.
  • the focusing system increases the focal length with the folded beam path via a mirror object system without having to enlarge the housing.
  • the detector is only irradiated at relatively small angles. In commercial detectors with a limited field of view, this leads to a high degree of utilization of the incident radiation.
  • the folded beam path enables the detector to be accommodated outside the optical axis at an electrically and thermally well-shielded point.
  • a special embodiment of such a separation of beam splitting and beam focusing has already been proposed by the applicant itself (patent application P 27 34 157.7) and is known in connection with the coating of the focusing mirror from Belgian patent No. 869 369, which is parallel to this. The fundamental importance of functional separation is not emphasized there.
  • the focusing system contains a concave mirror, onto which plane directional mirrors arranged in the manner of a blind project the associated fields of view. So that the same sensitivity applies to all fields of view, the same proportion of the area of the concave mirror should be available for each partial beam.
  • the surfaces of the directional mirrors projected onto a plane perpendicular to the optical axis should be the same for all fields of view.
  • an area with the same area between the individual straightening mirrors must be provided for a beam perpendicular to the optical axis.
  • the leveling mirror and thus the position of individual fields of view can be adjustable.
  • the arrangement according to the invention offers the possibility of covering individual directional mirrors and rendering the corresponding fields of vision ineffective.
  • the monitoring areas of the device can be optimally adjusted to the special conditions of the room to be monitored.
  • the straightening pie Gel placed so that a monitoring area asymmetrical to the optical axis arises and the motion detector can be installed in a corner of the room to be monitored.
  • a special embodiment of the directional mirrors consists in that they run parallel to one another in a direction perpendicular to the optical axis.
  • the focusing system contains a concave mirror, onto which a mirror arrangement with flat mirror facets projects the associated fields of view. This mirror arrangement is then inside a housing which has openings corresponding to the individual fields of vision.
  • a deflecting mirror is located between the concave mirror and the detector. Such an arrangement can advantageously be used with a vertical optical axis if a total vertical angle of less than 45 ° is to be monitored.
  • 1 denotes an infrared detector
  • 2 a planar deflection mirror
  • 3 a concave mirror.
  • 4 to 9 plane directional mirrors are designated, which are arranged like a blind and run parallel to the plane of the figure parallel.
  • the individual mirror surfaces are rectangles, those of the deflection mirror 2 are trapezoidal.
  • the deflecting mirror 2 and the concave mirror 3 form a Newtonian mirror object with which the rays coming from the directional mirrors 4 to 9 are focused on the detector 1.
  • the beam splitting takes place with the directional mirrors 4 to 9. Beams of rays from five directions, seen in the horizontal plane of the figure, over a total angle of 170 ° are converted by the directional mirrors 4 to 9 into beam bundles parallel to the axis and as such directed onto the concave mirror 3.
  • the leveling mirrors 7 and 8 are parallel to one another - accordingly the leveling mirrors 5 and 6 - and complement one another for the angular range of 40 ° to the optical axis to form a sufficient field of view. Rays from the field of view around the optical axis fall directly on the concave mirror 3.
  • the directional mirror 9 detects rays from the field of view through the angle 85 ° to the optical axis.
  • the leveling mirror 4 is symmetrical.
  • the leveling mirrors 4 to 9 are arranged through sufficient gaps so that each beam of rays to be detected can fall on the associated leveling mirror in sufficient width through a separate housing window. Individual windows can be opened easily be covered if the respective application requires it.
  • the vertical opening angles of the individual fields of view are determined by the vertical position of the directional mirrors 4 to 9 and by their optical distance from the detector 1 or by the distances of the entire optical parts from one another.
  • the position of the detector 1 can be seen in the side view via the deflecting mirror 2 to the concave mirror 3.
  • the deflecting mirror bends the optical axis lying horizontally to the concave mirror 3 perpendicularly downward to the detector 1.
  • FIG. 3 shows a side view of an optical arrangement for a motion detector which has a facet beam distribution instead of the blind beam division. This is suitable for vertical solid angles up to 45 °.
  • 1 again means an infrared detector, 1 a flat deflecting mirror and 3 a concave mirror.
  • 10 denotes a facet arrangement of flat mirrors.
  • 11 is a housing attached to a room wall. On the front of the housing 11 are two openings, each of which is either a horizontal slot or a horizontal row of holes with the horizontal solid angle of, for example, 180 °. The facet arrangement.
  • the housing 11 is arranged in the upper rear part of the housing 10 and contains two rows of planar mirrors standing one above the other and convex to one another, each of which adjoins in a convex manner.
  • the rows of mirrors each capture a horizontal solid angle of 180 °.
  • the upper individual mirrors are trapezoidal, the lower triangular. Rays from fields of view with a solid angle pass through the two slots or rows of holes from a total of 180 ° horizontally and vertically according to the height of the rows of slots or holes in the horizontal direction and 45 ° down to the two rows of mirrors. These throw the rays vertically downwards onto the concave mirror 3.
  • the concave mirror focuses the rays via the deflecting mirror 2 onto the detector 1, which is attached to the rear wall of the housing 11.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Radiation Pyrometers (AREA)
  • Burglar Alarm Systems (AREA)
EP19800100101 1979-02-07 1980-01-09 Dispositif optique pour la détection passive à rayonnement infrarouge de mouvement Ceased EP0014825A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19792904654 DE2904654A1 (de) 1979-02-07 1979-02-07 Optische anordnung fuer einen passiven infrarot-bewegungsmelder
DE2904654 1979-02-07

Publications (2)

Publication Number Publication Date
EP0014825A2 true EP0014825A2 (fr) 1980-09-03
EP0014825A3 EP0014825A3 (fr) 1981-01-07

Family

ID=6062380

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19800100101 Ceased EP0014825A3 (fr) 1979-02-07 1980-01-09 Dispositif optique pour la détection passive à rayonnement infrarouge de mouvement

Country Status (6)

Country Link
US (1) US4268752A (fr)
EP (1) EP0014825A3 (fr)
BR (1) BR8000724A (fr)
DE (1) DE2904654A1 (fr)
DK (1) DK51380A (fr)
NO (1) NO794145L (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0020917B1 (fr) * 1979-04-25 1983-03-23 Heimann GmbH Arrangement optique pour détecteur de mouvement infrarouge passif
EP0113468A2 (fr) * 1983-01-05 1984-07-18 Marcel Dipl.-Ing. ETH Züblin Dispositif de déflexion des rayons optiques
EP0050751B1 (fr) * 1980-10-24 1987-01-07 Cerberus Ag Arrangement optique pour un détecteur d'intrusion à infrarouge
FR2614984A1 (fr) * 1987-05-05 1988-11-10 Argamakoff Aleksy Detecteur automatique d'incendies de foret
GB2233470A (en) * 1989-06-23 1991-01-09 Marconi Gec Ltd Passive infra-red beacon having a reflector array
AU610202B2 (en) * 1987-05-29 1991-05-16 Saab Missiles Aktiebolag Device for selective detection of objects
FR2672144A1 (fr) * 1991-01-30 1992-07-31 Angenieux P Ets Dispositif pour le controle de vehicules a l'endroit d'un poste de controle ou similaire.
GB2302598B (en) * 1988-09-02 1997-08-13 Marconi Gec Ltd Reflective scatter detector
EP1336944A1 (fr) * 2002-02-14 2003-08-20 Steinel GmbH & Co. KG Miroir optique pour un détecteur de mouvement

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1156427B (de) * 1953-05-11 1963-10-31 Oluf Gudmund Hoyer Maschine zum Herstellen von festen Formkoerpern aus Speiseeis, insbesondere Stieleis
US2791890A (en) * 1953-05-11 1957-05-14 Hoyer Oluf Gudmund Machine for producing solid moulded bodies, especially ice-cream bricks
DE3039819A1 (de) * 1980-10-22 1982-05-27 EMS Elektronische Meldesysteme GmbH, 8912 Kaufering Alarmgeber
DE3119720C2 (de) * 1981-05-18 1985-07-11 Richard Hirschmann Radiotechnisches Werk, 7300 Esslingen Auf elektromagnetische Strahlung ansprechender Bewegungsmelder
US4442359A (en) * 1982-03-01 1984-04-10 Detection Systems, Inc. Multiple field-of-view optical system
JPS6047977A (ja) * 1983-08-26 1985-03-15 Matsushita Electric Works Ltd 赤外線人体検知装置
US4642454A (en) * 1984-08-27 1987-02-10 Raytek, Inc. Infrared intrusion detector with field of view locator
DE3447131A1 (de) * 1984-12-22 1986-06-26 Telenot Electronic GmbH, 7080 Aalen Raumschutzanlage
US4644164A (en) * 1985-01-04 1987-02-17 Cerberus Ag Compact passive infrared intrusion sensor
US4707604A (en) * 1985-10-23 1987-11-17 Adt, Inc. Ceiling mountable passive infrared intrusion detection system
US5266807A (en) * 1986-10-10 1993-11-30 Leviton Manufacturing Co., Inc. Passive infrared detection system
US4873469A (en) * 1987-05-21 1989-10-10 Pittway Corporation Infrared actuated control switch assembly
US4876445A (en) * 1988-05-16 1989-10-24 Nvtek Security Products, Inc. Intrusion detection device with extended field of view
US5103346A (en) * 1989-10-23 1992-04-07 Everspring Industry Detector with 180 detecting range
US5200624A (en) * 1991-09-09 1993-04-06 Pittway Corporation Wide-angle radiant energy detector
US5308985A (en) * 1991-10-31 1994-05-03 Intelectron Products Company Wide-angle passive infrared radiation detector
US5453622A (en) * 1993-10-05 1995-09-26 Larry C. Y. Lee Wide-angle motion detector with close-in, prismoidal reflector
EP0722571A1 (fr) * 1993-10-05 1996-07-24 Intelectron Products Company Detecteur de mouvement a grand angle comprenant un reflecteur a courte distance
US5626417A (en) * 1996-04-16 1997-05-06 Heath Company Motion detector assembly for use with a decorative coach lamp
FR2770650A1 (fr) * 1997-10-30 1999-05-07 Aerospatiale Systeme optique a plusieurs lignes de visee
US6037594A (en) * 1998-03-05 2000-03-14 Fresnel Technologies, Inc. Motion detector with non-diverging insensitive zones
NL1010088C2 (nl) * 1998-09-14 2000-03-15 Scantech Bv Inrichting voor het lezen van streepjescodes.
US6346705B1 (en) 1999-03-02 2002-02-12 Cordelia Lighting, Inc. Hidden PIR motion detector with mirrored optics
US7187505B2 (en) * 2002-10-07 2007-03-06 Fresnel Technologies, Inc. Imaging lens for infrared cameras
US20070030148A1 (en) * 2005-08-04 2007-02-08 Gekkotek, Llc Motion-activated switch finder
US8211871B2 (en) 2005-10-31 2012-07-03 Coloplast A/S Topical skin barriers and methods of evaluation thereof
NL2000616C2 (nl) * 2007-04-26 2008-10-28 Gen Electric Bewakingsinrichting.
US20100077528A1 (en) * 2008-05-12 2010-04-01 Howard Lind Clothing and apparel integrated with flexible silicone encased cable systems
CN117191199B (zh) * 2023-11-07 2024-01-23 四川中久大光科技有限公司 光束指向监测系统和方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1927131A1 (de) * 1968-05-29 1969-12-04 Pilkington Perkin Elmer Ltd Geraet zur Feststellung des Vorhandenseins eines Fremdkoerpers oder Einschlusses in einem bestimmten Raum
US3988726A (en) * 1973-09-04 1976-10-26 Gulf & Western Manufacturing Company Infrared intrusion detection apparatus
DE2103909B2 (de) * 1970-02-06 1976-11-25 Optical Coating Laboratory Inc., Santa Rosa, Calif. (V.StA.) Ueberwachungseinrichtung zur feststellung eines eindringlings, z.b. eines einbrechers
US4052616A (en) * 1976-06-30 1977-10-04 Cerberus Ag Infrared radiation-burglary detector
DE2734157A1 (de) * 1958-02-22 1979-02-01 Heimann Gmbh Passiver infrarot-alarmgeber
DE2855322A1 (de) * 1977-12-22 1979-07-05 Carbocraft Ltd Verbesserte infrarot-ueberwachungssysteme

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3703718A (en) * 1971-01-07 1972-11-21 Optical Coating Laboratory Inc Infrared intrusion detector system
GB1569879A (en) * 1975-12-13 1980-06-25 Barr & Stroud Ltd Radiation scanning system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2734157A1 (de) * 1958-02-22 1979-02-01 Heimann Gmbh Passiver infrarot-alarmgeber
DE1927131A1 (de) * 1968-05-29 1969-12-04 Pilkington Perkin Elmer Ltd Geraet zur Feststellung des Vorhandenseins eines Fremdkoerpers oder Einschlusses in einem bestimmten Raum
DE2103909B2 (de) * 1970-02-06 1976-11-25 Optical Coating Laboratory Inc., Santa Rosa, Calif. (V.StA.) Ueberwachungseinrichtung zur feststellung eines eindringlings, z.b. eines einbrechers
US3988726A (en) * 1973-09-04 1976-10-26 Gulf & Western Manufacturing Company Infrared intrusion detection apparatus
US4052616A (en) * 1976-06-30 1977-10-04 Cerberus Ag Infrared radiation-burglary detector
DE2855322A1 (de) * 1977-12-22 1979-07-05 Carbocraft Ltd Verbesserte infrarot-ueberwachungssysteme
GB2012045A (en) * 1977-12-22 1979-07-18 Carbocraft Ltd Infrared surveillance systems

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0020917B1 (fr) * 1979-04-25 1983-03-23 Heimann GmbH Arrangement optique pour détecteur de mouvement infrarouge passif
EP0050751B1 (fr) * 1980-10-24 1987-01-07 Cerberus Ag Arrangement optique pour un détecteur d'intrusion à infrarouge
EP0113468A2 (fr) * 1983-01-05 1984-07-18 Marcel Dipl.-Ing. ETH Züblin Dispositif de déflexion des rayons optiques
EP0113468A3 (en) * 1983-01-05 1987-09-30 Marcel Zueblin Method of deflecting optical rays, and optical device therefor
FR2614984A1 (fr) * 1987-05-05 1988-11-10 Argamakoff Aleksy Detecteur automatique d'incendies de foret
AU610202B2 (en) * 1987-05-29 1991-05-16 Saab Missiles Aktiebolag Device for selective detection of objects
GB2302598B (en) * 1988-09-02 1997-08-13 Marconi Gec Ltd Reflective scatter detector
GB2233470A (en) * 1989-06-23 1991-01-09 Marconi Gec Ltd Passive infra-red beacon having a reflector array
GB2233470B (en) * 1989-06-23 1993-03-24 Marconi Gec Ltd Infra-red beacon
FR2672144A1 (fr) * 1991-01-30 1992-07-31 Angenieux P Ets Dispositif pour le controle de vehicules a l'endroit d'un poste de controle ou similaire.
EP1336944A1 (fr) * 2002-02-14 2003-08-20 Steinel GmbH & Co. KG Miroir optique pour un détecteur de mouvement

Also Published As

Publication number Publication date
DE2904654A1 (de) 1980-08-14
BR8000724A (pt) 1980-10-21
US4268752A (en) 1981-05-19
NO794145L (no) 1980-08-08
DK51380A (da) 1980-08-08
EP0014825A3 (fr) 1981-01-07

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Inventor name: HERWIG, THOMAS, DIPL.-PHYS.