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DE2805423A1 - Photodetector system using parallel beams - has transmitter and receiver in single unit with reflector unit located at end of room - Google Patents

Photodetector system using parallel beams - has transmitter and receiver in single unit with reflector unit located at end of room

Info

Publication number
DE2805423A1
DE2805423A1 DE19782805423 DE2805423A DE2805423A1 DE 2805423 A1 DE2805423 A1 DE 2805423A1 DE 19782805423 DE19782805423 DE 19782805423 DE 2805423 A DE2805423 A DE 2805423A DE 2805423 A1 DE2805423 A1 DE 2805423A1
Authority
DE
Germany
Prior art keywords
receiver
transmitter
room
reflector
parallel beams
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
DE19782805423
Other languages
German (de)
Other versions
DE2805423B2 (en
Inventor
Friedrich Dipl Ing Preiser
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.)
RENZ PAUL
Original Assignee
RENZ PAUL
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 RENZ PAUL filed Critical RENZ PAUL
Priority to DE19782805423 priority Critical patent/DE2805423B2/en
Publication of DE2805423A1 publication Critical patent/DE2805423A1/en
Publication of DE2805423B2 publication Critical patent/DE2805423B2/en
Ceased legal-status Critical Current

Links

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
    • G08B13/181—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems
    • G08B13/183—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems by interruption of a radiation beam or barrier
    • G08B13/184—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems by interruption of a radiation beam or barrier using radiation reflectors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V8/00—Prospecting or detecting by optical means
    • G01V8/10—Detecting, e.g. by using light barriers
    • G01V8/12—Detecting, e.g. by using light barriers using one transmitter and one receiver
    • G01V8/14—Detecting, e.g. by using light barriers using one transmitter and one receiver using reflectors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Burglar Alarm Systems (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

A photodetector system is used. It is employed as a room security system. It uses a double beam to allow both transmitter and receiver to be located in the same unit. The transmitter (S) outputs a light beam that passes across the room to a reflector unit consisting of two angled mirrors (S1, S2). The return beam is directed parallel to the transmitted beam and is collected by the receiver (E). The beam is returned by a reflector system (S1, S2). A corner-cube reflector may be used.

Description

Beschreibung: Description:

Lichtschranke mit besonderem Reflektor zur Leitung des Lichtstrahls in zwei optischen Ebenen.Light barrier with a special reflector for guiding the light beam in two optical levels.

Die Erfindung betrifft eine Lichtschranke, mit welcher Objekte oder Räume iiberwacht werden sollen.The invention relates to a light barrier with which objects or Rooms are to be monitored.

Bei derartigen Lichtschranken ist die Leitung eines Lichtstrahls jeweils auf der Seite des Objektes bzw. Raumes notwendig, von der her eine Kontrolle oder Reaktion erfolgen soll.In such light barriers, the line of a light beam is in each case on the side of the object or room necessary from which a control or Reaction should take place.

Es ist bekannt, daß zur Erfüllung dieser Aufgabe Lichtschranken im Einweg - Prinzip angeordnet werden. Dort wird jeweils von einer Lichtquelle aus ein Strahl zum gegenüberliegenden Empfänger gesandt, so daß diese eine optische Ebene bedient werden kann.It is known that light barriers in the Disposable principle can be arranged. There is a light source in each case a beam is sent to the opposite receiver, so that this is an optical Level can be served.

Ferner sind Anlagen bekannt, bei denen der Strahl von einer Lichtquelle auf einen gegenüberliegenden Reflektor gesandt und auf derselben Ebene wieder zurückgeschickt wird, so daß ebenfalls nur eine Ebene bedient wird.Systems are also known in which the beam from a light source sent to an opposing reflector and sent back on the same plane so that only one level is served.

Der Erfindung liegt die Aufgabe zugrunde, mit einem System mehrere Ebenen zu bedienen und damit die Zahl der erforderlichen Bauteile zu vermindern, wenn eine Kontrolle vor und hinter einem Objekt bzw. Raum stattfinden soll, etwa bei Toren jeder Art.The object of the invention is to provide several with one system To operate levels and thus to reduce the number of required components, if a control is to take place in front of and behind an object or room, for example for gates of all kinds.

Diese Aufgabe wird dadurch erfindungsmEBig gelöst, daß in einem Bauteil auf der einen Seite der Lichtsender und der Empfänger zusammen montiert werden, und zwar an den beiden Knickpunkten eines U - förmigen Rohrs.This object is achieved according to the invention that in one component the light transmitter and the receiver are mounted together on one side, namely at the two kink points of a U-shaped tube.

Gegenüberliegend werden in einem Reflektorbauteil zwei Spiegel in den entsprechenden optischen Ebenen so angebracht, daß der vom Sender ankommende Lichtstrahl umgelenkt und auf der anderen Seite des zu überwachenden Objektes bzw. Raumes zum Empfänger zurückgesandt wird.Opposite are two mirrors in a reflector component the corresponding optical planes attached so that the incoming from the transmitter Light beam deflected and on the other side of the too monitoring Object or room is returned to the recipient.

Der Vorteil der Erfindung liegt darin, daß mit geringem Aufwand an Material und MOntageeinsatz die beidseiteige Kontrolle von Objekten bzw. Räumen ermöglicht wird.The advantage of the invention is that with little effort Material and assembly use the bilateral control of objects or rooms is made possible.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt.An embodiment of the invention is shown in the drawing.

Abbildung 1 zeigt die Gesamtfunktion der Anlage.Figure 1 shows the overall function of the system.

Abbildung 2 zeigt die Bauweise der beiden Bauteile und die optische Bewegung.Figure 2 shows the construction of the two components and the optical one Move.

LeerseiteBlank page

Claims (1)

Schutzanspruah: Lichtschrankenanlage, dadurch gekennzeichnet, daß der Hin- und Rücklauf des Lichts strahls auf getrennten wegen vor und hinter einem zu überwachenden Objekt oder Raum, also in zwei optischen Ebenen erfolgt, wobei Lichtquelle und Lichtempfänger in einem Gehäuse kombiniert sind. Protection claim: light barrier system, characterized in that the back and forth of the light beam on separate paths in front of and behind one object or space to be monitored, that is to say in two optical planes, whereby Light source and light receiver are combined in one housing.
DE19782805423 1978-02-09 1978-02-09 Light barrier arrangement Ceased DE2805423B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19782805423 DE2805423B2 (en) 1978-02-09 1978-02-09 Light barrier arrangement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782805423 DE2805423B2 (en) 1978-02-09 1978-02-09 Light barrier arrangement

Publications (2)

Publication Number Publication Date
DE2805423A1 true DE2805423A1 (en) 1979-08-16
DE2805423B2 DE2805423B2 (en) 1980-05-08

Family

ID=6031513

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19782805423 Ceased DE2805423B2 (en) 1978-02-09 1978-02-09 Light barrier arrangement

Country Status (1)

Country Link
DE (1) DE2805423B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0220361A2 (en) * 1985-08-28 1987-05-06 Telenot Electronic GmbH Surface protection
WO1998044365A1 (en) * 1997-03-31 1998-10-08 Lam Research Corporation Optical detector to detect the presence of a semiconductor wafer
FR2781576A1 (en) * 1998-07-27 2000-01-28 Valeo Systemes Dessuyage Optical attachment to vehicle windscreen for detecting dirt or stains on surface: comprises transmitter and receiver, parabolic lenses and reflector to produce parallel light paths with internal reflections
FR2781575A1 (en) * 1998-07-27 2000-01-28 Valeo Systemes Dessuyage Optical attachment to vehicle windscreen for detecting water on surface: comprises transmitter and receiver, parabolic lenses and reflector to produce parallel light rays with internal reflections
DE10151327A1 (en) * 2001-10-17 2003-04-30 Sick Ag Optoelectronic device, such as a light barrier, has a flexible optical fiber coupling unit that means the transmission and receiving units can be flexibly aligned
EP1522879A2 (en) 2003-10-06 2005-04-13 i f m electronic gmbh Opto-electronic sensor and method of detecting an object in a surveillance area
WO2010072200A1 (en) * 2008-12-24 2010-07-01 Pantron Instruments Gmbh Light barrier

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8709734U1 (en) * 1987-06-17 1987-09-24 Emil U. Adolf Becker Gmbh & Co Kg, 6349 Sinn Device for burglar protection of windows or doors
DE20000868U1 (en) 2000-01-19 2000-03-23 Sick AG, 79183 Waldkirch Optical position detection device

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0220361A2 (en) * 1985-08-28 1987-05-06 Telenot Electronic GmbH Surface protection
EP0220361A3 (en) * 1985-08-28 1988-04-20 Telenot Electronic Gmbh Surface protection
WO1998044365A1 (en) * 1997-03-31 1998-10-08 Lam Research Corporation Optical detector to detect the presence of a semiconductor wafer
FR2781576A1 (en) * 1998-07-27 2000-01-28 Valeo Systemes Dessuyage Optical attachment to vehicle windscreen for detecting dirt or stains on surface: comprises transmitter and receiver, parabolic lenses and reflector to produce parallel light paths with internal reflections
FR2781575A1 (en) * 1998-07-27 2000-01-28 Valeo Systemes Dessuyage Optical attachment to vehicle windscreen for detecting water on surface: comprises transmitter and receiver, parabolic lenses and reflector to produce parallel light rays with internal reflections
DE10151327A1 (en) * 2001-10-17 2003-04-30 Sick Ag Optoelectronic device, such as a light barrier, has a flexible optical fiber coupling unit that means the transmission and receiving units can be flexibly aligned
EP1522879A2 (en) 2003-10-06 2005-04-13 i f m electronic gmbh Opto-electronic sensor and method of detecting an object in a surveillance area
EP1522879A3 (en) * 2003-10-06 2007-01-24 i f m electronic gmbh Opto-electronic sensor and method of detecting an object in a surveillance area
WO2010072200A1 (en) * 2008-12-24 2010-07-01 Pantron Instruments Gmbh Light barrier
US8853612B2 (en) 2008-12-24 2014-10-07 Pantron Instruments Gmbh Light barrier

Also Published As

Publication number Publication date
DE2805423B2 (en) 1980-05-08

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Legal Events

Date Code Title Description
OAP Request for examination filed
OD Request for examination
8235 Patent refused