EP0825574B1 - Movement detector with at least a convergent lens - Google Patents
Movement detector with at least a convergent lens Download PDFInfo
- Publication number
- EP0825574B1 EP0825574B1 EP97113619A EP97113619A EP0825574B1 EP 0825574 B1 EP0825574 B1 EP 0825574B1 EP 97113619 A EP97113619 A EP 97113619A EP 97113619 A EP97113619 A EP 97113619A EP 0825574 B1 EP0825574 B1 EP 0825574B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- infrared sensor
- circuit board
- motion detector
- sensor
- detector according
- 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.)
- Expired - Lifetime
Links
- 230000033001 locomotion Effects 0.000 title claims description 25
- 230000005855 radiation Effects 0.000 claims abstract description 15
- 241000219739 Lens Species 0.000 description 20
- 238000010276 construction Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 235000014647 Lens culinaris subsp culinaris Nutrition 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Images
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
Definitions
- the invention relates to a motion detector according to the preamble of claim 1.
- Motion detectors are usually designed as passive IR motion detectors.
- at least one converging lens focuses the incident, moving objects, in particular from people, emitted heat radiation on an infrared sensor. This generates electrical signals from this, from which a message to be monitored in a Space detected movements can be derived.
- electrical Components, especially the infrared sensor are used parallel to the receiving plane of the infrared sensor in the housing of the motion detector.
- the constructive design of motion detectors with pyroelectric infrared sensors is essentially from the design of the sensor and the geometry of the used Lentils determined. With a given detection characteristic and range of the motion detector are changes to the dimensions and position the lens and the distance to the sensor. With an arrangement like this e.g. B. is known from EP 01 13 468 B1, a motion detector with a detection angle of 180 degrees. With such a structure shown in Fig. 1 the overall height of the device results from the components lens, sensor, housing of the motion detector and position of the circuit board. The sensor becomes direct or in combination with carrier elements on the side of the circuit board facing the lens mounted so that the sensor elements for heat radiation are easily accessible the circuit board.
- the object of the invention is a motion detector according to the preamble of the claim 1 to create, despite its relative by the physical circumstances Rigid structure is reduced in height, without this one significant change in the optical determining the detection characteristic System needs.
- a reduction in the overall height is advantageously achieved in that the Infrared sensor is arranged in one plane, seen from the converging lens lies behind the circuit board.
- the circuit board must have an opening in this area be seen that is designed so that the focused heat radiation the Infrared sensor can reach.
- the opening in the printed circuit board is so large that it is direct incident heat radiation reaches the infrared sensor unhindered.
- the mirrors can thus arranged in front of the circuit board on its side facing the converging lens become. The deflecting effect also causes the laterally incident heat radiation through the same opening to the infrared sensor.
- bracket part To attach the bracket part to the circuit board between the support part for the mirror and the sensor holder are provided with a clamping device with latches, which enables the bracket to be clamped to the edge of the opening.
- the infrared sensor is equipped with a flat pack sensor housing.
- This housing is, as its name suggests, much flatter than conventional housings, so that the necessary distance between the circuit board and the bottom of the housing is reduced.
- the infrared sensor 3 with its sensor elements 6 mounted on the side of the printed circuit board 4 facing the converging lens 2. According to Fig. 2 the overall height of the arrangement can be significantly reduced. This is in the circuit board 4, an opening 8 is cut out, which is the heat radiation focused by the converging lens 2 allowed to penetrate freely into the area behind the circuit board 4.
- the infrared sensor 3 is now arranged here, with its two sensor elements 6 is approximately at the focal point of the converging lens 2, clearly behind the printed circuit board 4.
- the Housing structure of the infrared sensor 3 with a flat pack sensor housing 7 facilitated additionally a particularly flat design of the motion detector.
- a specially designed mounting part is particularly advantageous for the overall structure 11, 12, which receives the infrared sensor 3 with a flat-pack sensor housing 7 Sensor bracket 12 and a support member 11 for mirror 10 is made.
- This Bracket part 11, 12 is designed in the area of the sensor bracket 12 so that the infrared sensor 3 can be used comfortably and its location is precisely defined. there one will endeavor to minimize the distance 9 to the device housing 5 without the assignment of the holder part 11, 12 to the circuit board 4 and their assignment to Negative lens 2 affect.
- the mirrors 10 fastened to the carrier part 11 lie on those assigned to the converging lens 2 Side of the circuit board 4 and are arranged so that the lateral to be detected incident heat radiation as well as the direct incident heat radiation through the opening 8 can reach the infrared sensor 3 unhindered.
- Locking device with locking lugs 13 allows an exact positioning of the mounting part 11, 12 in the edge region of the opening 8 on the printed circuit board 4. This is an exact Alignment of all optically effective parts to each other guaranteed.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Geophysics And Detection Of Objects (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Radiation Pyrometers (AREA)
- Optical Couplings Of Light Guides (AREA)
- Helmets And Other Head Coverings (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Burglar Alarm Systems (AREA)
- Push-Button Switches (AREA)
- Vehicle Body Suspensions (AREA)
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
- Fire-Detection Mechanisms (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
Abstract
Description
Die Erfindung betrifft einen Bewegungsmelder nach dem Oberbegriff des Anspruchs 1.The invention relates to a motion detector according to the preamble of
Bewegungsmelder sind gewöhnlich als passive IR-Bewegungsmelder aufgebaut. Hierbei fokussiert mindestens eine Sammellinse die einfallende, von beweglichen Objekten, insbesondere von Personen, emittierte Wärmestrahlung auf einen Infrarotsensor. Dieser erzeugt hieraus elektrische Signale, aus denen eine Meldung der in einem zu überwachenden Raum erfaßten Bewegungen ableitbar ist. Zur Aufnahme von elektrischen Bauelementen, insbesondere des Infrarotsensors, dient eine parallel zur Empfangsebene des Infrarotsensors im Gehäuse des Bewegungsmelders positionierte Leiterplatte.Motion detectors are usually designed as passive IR motion detectors. Here at least one converging lens focuses the incident, moving objects, in particular from people, emitted heat radiation on an infrared sensor. This generates electrical signals from this, from which a message to be monitored in a Space detected movements can be derived. To accommodate electrical Components, especially the infrared sensor, are used parallel to the receiving plane of the infrared sensor in the housing of the motion detector.
Die konstruktive Gestaltung von Bewegungsmeldern mit pyroelektrischen Infrarotsensoren wird im wesentlichen von der Bauform des Sensors und von der Geometrie der verwendeten Linsen bestimmt. Bei vorgegebener Erfassungscharakteristik und Reichweite des Bewegungsmelders sind Veränderungen an den Abmessungen und der Position der Linse sowie am Abstand zum Sensor nicht möglich. Bei einer Anordnung, wie sie z. B. aus der EP 01 13 468 B1 bekannt ist, wird ein Bewegungsmelder mit einem Erfassungswinkel von 180 Grad beschrieben. Bei einem solchen in Fig. 1 dargestellten Aufbau ergibt sich die Bauhöhe des Gerätes aus den Komponenten Linse, Sensor, Gehäuse des Bewegungsmelders und Lage der Leiterplatte. Der Sensor wird hierbei direkt oder in Kombination mit Trägerelementen auf der zur Linse zeigenden Seite der Leiterplatte montiert, so daß die Sensorelemente für die Wärmestrahlung gut erreichbar vor der Leiterplatte liegen.The constructive design of motion detectors with pyroelectric infrared sensors is essentially from the design of the sensor and the geometry of the used Lentils determined. With a given detection characteristic and range of the motion detector are changes to the dimensions and position the lens and the distance to the sensor. With an arrangement like this e.g. B. is known from EP 01 13 468 B1, a motion detector with a detection angle of 180 degrees. With such a structure shown in Fig. 1 the overall height of the device results from the components lens, sensor, housing of the motion detector and position of the circuit board. The sensor becomes direct or in combination with carrier elements on the side of the circuit board facing the lens mounted so that the sensor elements for heat radiation are easily accessible the circuit board.
Aufgabe der Erfindung ist es, einen Bewegungsmelder nach dem Oberbegriff des Anspruchs
1 zu schaffen, der trotz seines durch die physikalischen Gegebenheiten relativ
starr festgelegten Aufbaus in seiner Bauhöhe vermindert ist, ohne daß es hierzu einer
wesentlichen Änderung an dem die Erfassungscharakteristik bestimmenden optischen
System bedarf.The object of the invention is a motion detector according to the preamble of the
Diese Aufgabe wird durch die im Anspruch 1 gekennzeichneten Merkmale gelöst.
Zweckmäßige Ausgestaltungen und Weiterbildungen des Erfindungsgegenstandes sind
in den Unteransprüchen genannt.This object is achieved by the features characterized in
Eine Herabsetzung der Bauhöhe wird in vorteilhafter Weise dadurch erreicht, daß der Infrarotsensor in einer Ebene angeordnet ist, die von der Sammellinse aus gesehen hinter der Leiterplatte liegt. Die Leiterplatte muß dazu in diesem Bereich mit einer Öffnung vesehen werden, die so ausgebildet ist, daß die fokussierte Wärmestrahlung den Infrarotsensor erreichen kann. Obwohl der Abstand des Brennpunktes zur Sammellinse des Bewegungsmelders unverändert ist, gelingt es durch diesen Aufbau den Brennpunkt weiter nach hinten in das Gerätegehäuse hinein zu verlagern und dadurch die Bauhöhe zu verringern.A reduction in the overall height is advantageously achieved in that the Infrared sensor is arranged in one plane, seen from the converging lens lies behind the circuit board. The circuit board must have an opening in this area be seen that is designed so that the focused heat radiation the Infrared sensor can reach. Although the distance from the focal point to the converging lens of the motion detector is unchanged, the focus is achieved through this construction to move further back into the device housing and thereby the Reduce overall height.
Geht man davon aus, daß die Sammellinse exakt zur Lage der Leiterplatte positioniert ist, so wird durch eine geeignete Positionierung des Infrarotsensors zur Leiterplatte auch seine Lage zu der Sammellinse festgelegt. Eine zweckmäßige Weiterbildung des Erfindungsgegenstandes sieht deshalb vor, daß der Infrarotsensor an einer Sensorhalterung befestigt ist, die sich im Randbereich der Öffnung verankert und eine hinter der Leiterplatte liegende Aufnahme für den Infrarotsensor bildet. Assuming that the converging lens is positioned exactly to the position of the circuit board is, by appropriate positioning of the infrared sensor to the circuit board also fixed its location to the converging lens. A useful training of Subject of the invention therefore provides that the infrared sensor on a sensor holder is attached, which is anchored in the edge region of the opening and one behind the Printed circuit board lying recording for the infrared sensor forms.
Außer der direkt einfallenden Wärmestrahlung, die von den Sammellinsen unmittelbar auf den Infrarotsensor fokussiert wird, ist auch eine Umlenkung lateral einfallender Wärmestrahlung mit Hilfe von Spiegeln vorgesehen. Es ist vorteilhaft, das zur Aufnahme der Spiegel benötigte Trägerteil mit der Sensorhalterung zu einem Halterungsteil zu vereinigen.Except for the direct heat radiation that comes from the converging lenses directly is focused on the infrared sensor, a deflection is laterally incident Heat radiation provided by means of mirrors. It is advantageous to take that the mirror required support part with the sensor holder to a holder part unite.
Es genügt, wenn die in der Leiterplatte ausgesparte Öffnung so groß ist, daß die direkt einfallende Wärmestrahlung den Infrarotsensor unbehindert erreicht. Die Spiegel können somit vor der Leiterplatte auf ihrer der Sammellinse zugewandten Seite angeordnet werden. Durch ihre Umlenkwirkung gelangt auch die lateral einfallende Wärmestrahlung durch dieselbe Öffnung zum Infrarotsensor.It is sufficient if the opening in the printed circuit board is so large that it is direct incident heat radiation reaches the infrared sensor unhindered. The mirrors can thus arranged in front of the circuit board on its side facing the converging lens become. The deflecting effect also causes the laterally incident heat radiation through the same opening to the infrared sensor.
Zur Befestigung des Halterungsteils an der Leiterplatte ist zwischen dem Trägerteil für die Spiegel und der Sensorhalterung eine Klemmvorrichtung mit Rastnasen vorgesehen, die eine Klemmbefestigung des Halterungsteils am Rand der Öffnung ermöglicht.To attach the bracket part to the circuit board between the support part for the mirror and the sensor holder are provided with a clamping device with latches, which enables the bracket to be clamped to the edge of the opening.
Eine zusätzliche Verminderung der Bauhöhe des Gerätes läßt sich dadurch erreichen, daß der Infrarotsensor mit einem flat-pack-Sensorgehäuse ausgestattet ist. Dieses Gehäuse ist, wie sein Name sagt, wesentlich flacher als herkömmliche Gehäuse, so daß sich der notwendige Abstand zwischen Leiterplatte und Boden des Gehäuses verringert.An additional reduction in the overall height of the device can be achieved by that the infrared sensor is equipped with a flat pack sensor housing. This housing is, as its name suggests, much flatter than conventional housings, so that the necessary distance between the circuit board and the bottom of the housing is reduced.
Weiterhin ist es zweckmäßig, zur Erreichung einer geringen Bauhöhe dafür zu sorgen, daß der Infrarotsensor in einem entsprechend den konstruktiven Vorgaben minimierten Abstand vom Boden des Gehäuses montiert ist.Furthermore, to achieve a low overall height, it is advisable to ensure that that the infrared sensor was minimized in accordance with the design specifications Distance from the bottom of the housing is mounted.
Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und werden im folgenden näher beschrieben. Es zeigen:
- Fig. 1
- den Aufbau eines herkömmichen Bewegungsmelders mit dem Infrarotsensor auf der der Sammellinse zugewandten Seite der Leiterplatte,
- Fig. 2
- den Aufbau des erfindungsgemäßen Bewegungsmelders mit dem Infrarotsensor auf der von der Sammellinse abgewandten Seite der Leiterplatte.
- Fig. 1
- the construction of a conventional motion detector with the infrared sensor on the side of the circuit board facing the converging lens,
- Fig. 2
- the structure of the motion detector according to the invention with the infrared sensor on the side of the circuit board facing away from the collecting lens.
Bei dem in Fig. 1 dargestellten ursprünglichen Aufbau eines Bewegungsmelders wird
dessen Bauhöhe 1 ebenso wie bei der erfindungsgemäßen Ausführung nach Fig. 2 vom
Abstand zwischen der Mantelfläche der aus Fresnellinsen bestehenden Sammellinse 2
einerseits und der äußeren Bodenfläche des Gerätegehäuses 5 andererseits bestimmt.In the original construction of a motion detector shown in FIG
whose
Bei der herkömmlichen Ausführung ist der Infrarotsensor 3 mit seinen Sensorelementen
6 auf der der Sammellinse 2 zugewandten Seite der Leiterplatte 4 montiert. Nach Fig. 2
läßt sich die Bauhöhe der Anordnung deutlich herabsetzen. Hierzu ist in der Leiterplatte
4 eine Öffnung 8 ausgespart, die es der von der Sammellinse 2 fokussierten Wärmestrahlung
gestattet, ungehindert bis in den Bereich hinter der Leiterplatte 4 vorzudringen.
Hier ist nun der Infrarotsensor 3 angeordnet, der mit seinen beiden Sensorelementen
6 etwa im Brennpunkt der Sammellinse 2 deutlich hinter der Leiterplatte 4 liegt. Der
Gehäuseaufbau des Infrarotsensors 3 mit einem flat-pack-Sensorgehäuse 7 erleichtert
zusätzlich eine besonders flache Bauweise des Bewegungsmelders.In the conventional embodiment, the
Für den Gesamtaufbau von besonderem Vorteil ist ein speziell gestaltetes Halterungsteil
11, 12, das aus einer den Infrarotsensor 3 mit flat-pack-Sensorgehäuse 7 aufnehmenden
Sensorhalterung 12 und einem Trägerteil 11 für Spiegel 10 besteht. Dieses
Halterungsteil 11, 12 ist im Bereich der Sensorhalterung 12 so gestaltet, daß der Infrarotsensor
3 bequem eingesetzt werden kann und seine Lage genau definiert ist. Dabei
wird man bemüht sein, den Abstand 9 zum Gerätegehäuse 5 hin zu minimieren, ohne
die Zuordnung des Halterungsteils 11, 12 zur Leiterplatte 4 und deren Zuordnung zur
Sammellinse 2 zu beeinträchtigen. A specially designed mounting part is particularly advantageous for the
Die am Trägerteil 11 befestigten Spiegel 10 liegen auf der der Sammellinse 2 zugeordneten
Seite der Leiterplatte 4 und sind so angeordnet, daß die zu erfassende lateral
einfallende Wärmestrahlung ebenso wie die direkt einfallende Wärmestrahlung durch
die Öffnung 8 ungehindert den Infrarotsensor 3 erreichen kann.The
Eine im Bereich zwischen dem Trägerteil 11 und der Sensorhalterung 12 vorgesehene
Rastvorrichtung mit Rastnasen 13 erlaubt eine exakte Positionierung des Halterungsteils
11, 12 im Randbereich der Öffnung 8 an der Leiterplatte 4. Damit ist eine genaue
Ausrichtung aller optisch wirksamen Teile zueinander gewährleistet.One provided in the area between the
Claims (7)
- Motion detector having at least one converging lens (2) which focuses incident thermal radiation, emitted by moving objects, in particular by persons, onto at least one infrared sensor (3) which generates therefrom electric signals from which it is possible to derive an alarm for movements detected in a space to be monitored, and having a printed circuit board (4) which is suitable for holding electric components and positioned parallel to the receiving plane of the infrared sensor (3) in the housing of the motion detector, characterized in that the at least one infrared sensor (3) is arranged in a plane situated behind the printed circuit board (4) when seen from the converging lens (2), and the printed circuit board (4) has in this region an opening (8) which is designed such that the focused thermal radiation reaches the infrared sensor (3).
- Motion detector according to Claim 1, characterized in that the infrared sensor (3) is fastened on a sensor holder (12) which is anchored in the edge region of the opening (8) and forms a receptacle, situated behind the printed circuit board (4), for the infrared sensor (3).
- Motion detector according to Claim 2, characterized in that the sensor holder (12) is joined to a support part (11) which serves to accommodate mirrors (10).
- Motion detector according to Claim 3, characterized in that the mirrors are arranged in front of the printed circuit board (4) on its side facing the converging lens (2) and serve to deflect laterally incident thermal radiation.
- Motion detector according to one of the preceding Claims 3 to 4, characterized in that provided between the support part (11) for the mirrors (10) and the sensor holder (12) is a clamping device with latching tabs which permits the holder (11, 12) to be clamped at the edge of the opening (8).
- Motion detector according to one of the preceding claims, characterized in that the infrared sensor (3) is fitted with a flat-pack sensor housing (7).
- Motion detector according to one of the preceding claims, characterized in that the infrared sensor (3) is mounted at a spacing (9), minimised in accordance with the design stipulations, from the base of the device housing (5).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19632514A DE19632514A1 (en) | 1996-08-13 | 1996-08-13 | Motion detector with at least one converging lens |
DE19632514 | 1996-08-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0825574A1 EP0825574A1 (en) | 1998-02-25 |
EP0825574B1 true EP0825574B1 (en) | 2001-06-27 |
Family
ID=7802451
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97113619A Expired - Lifetime EP0825574B1 (en) | 1996-08-13 | 1997-08-07 | Movement detector with at least a convergent lens |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0825574B1 (en) |
AT (1) | ATE202649T1 (en) |
CZ (1) | CZ246197A3 (en) |
DE (2) | DE19632514A1 (en) |
ES (1) | ES2159073T3 (en) |
HU (1) | HUP9701384A2 (en) |
NO (1) | NO973708L (en) |
PL (1) | PL321562A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006016395B3 (en) * | 2006-04-07 | 2007-07-19 | Abb Patent Gmbh | Detector/lens arrangement for use in infrared motion detector, has dual-infrared sensor with two sensor units, where one sensor unit is charged with infrared radiation by extreme edge-sided lens and mirror |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19821302B4 (en) * | 1998-05-13 | 2005-12-15 | Abb Patent Gmbh | Passive infrared motion detectors |
PL71224Y1 (en) * | 2017-11-21 | 2020-02-28 | Wojciech Zawadzki | Automobile alarm sensor |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57142526A (en) * | 1981-02-27 | 1982-09-03 | Fujitsu Ltd | Infrared detector |
EP0113468B1 (en) * | 1983-01-05 | 1990-07-11 | Marcel Dipl.-Ing. ETH Züblin | Optical device for deflecting optical rays |
DE8816609U1 (en) * | 1988-02-04 | 1990-01-11 | B.E.G. Brueck Electronic Gmbh, 5253 Lindlar, De | |
US5026990A (en) * | 1989-08-28 | 1991-06-25 | Sentrol, Inc. | Method and apparatus for installing infrared sensors in intrusion detection systems |
DE3942830C2 (en) * | 1989-12-23 | 1999-03-04 | Asea Brown Boveri | Passive infrared motion detector |
DE4315183A1 (en) * | 1993-05-07 | 1994-11-10 | Merten Gmbh & Co Kg Geb | motion detector |
DE4333707C2 (en) * | 1993-10-02 | 1996-12-05 | Insta Elektro Gmbh & Co Kg | Passive infrared motion detector |
US5545896A (en) * | 1994-06-28 | 1996-08-13 | Santa Barbara Research Center | Optically immersed semiconductor photodetectors |
DE4426919B4 (en) * | 1994-07-29 | 2006-03-23 | Insta Elektro Gmbh | Passive infrared motion detector with adjustable detection range |
-
1996
- 1996-08-13 DE DE19632514A patent/DE19632514A1/en not_active Withdrawn
-
1997
- 1997-08-01 CZ CZ972461A patent/CZ246197A3/en unknown
- 1997-08-07 AT AT97113619T patent/ATE202649T1/en active
- 1997-08-07 DE DE59703893T patent/DE59703893D1/en not_active Expired - Lifetime
- 1997-08-07 ES ES97113619T patent/ES2159073T3/en not_active Expired - Lifetime
- 1997-08-07 EP EP97113619A patent/EP0825574B1/en not_active Expired - Lifetime
- 1997-08-11 PL PL97321562A patent/PL321562A1/en unknown
- 1997-08-12 HU HU9701384A patent/HUP9701384A2/en unknown
- 1997-08-12 NO NO973708A patent/NO973708L/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006016395B3 (en) * | 2006-04-07 | 2007-07-19 | Abb Patent Gmbh | Detector/lens arrangement for use in infrared motion detector, has dual-infrared sensor with two sensor units, where one sensor unit is charged with infrared radiation by extreme edge-sided lens and mirror |
Also Published As
Publication number | Publication date |
---|---|
DE19632514A1 (en) | 1998-02-19 |
CZ246197A3 (en) | 1999-01-13 |
EP0825574A1 (en) | 1998-02-25 |
HUP9701384A2 (en) | 1998-04-28 |
NO973708D0 (en) | 1997-08-12 |
NO973708L (en) | 1998-02-16 |
HU9701384D0 (en) | 1997-10-28 |
ES2159073T3 (en) | 2001-09-16 |
PL321562A1 (en) | 1998-02-16 |
ATE202649T1 (en) | 2001-07-15 |
DE59703893D1 (en) | 2001-08-02 |
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