DE102005015500A1 - Optoelectronic sensor has multiple off axis receiver elements with focussing by electrically variable focal length fluid lenses - Google Patents
Optoelectronic sensor has multiple off axis receiver elements with focussing by electrically variable focal length fluid lenses Download PDFInfo
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- DE102005015500A1 DE102005015500A1 DE102005015500A DE102005015500A DE102005015500A1 DE 102005015500 A1 DE102005015500 A1 DE 102005015500A1 DE 102005015500 A DE102005015500 A DE 102005015500A DE 102005015500 A DE102005015500 A DE 102005015500A DE 102005015500 A1 DE102005015500 A1 DE 102005015500A1
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- optoelectronic sensor
- liquid lens
- sensor according
- light
- transmitter
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- 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
Abstract
Description
Die Erfindung betrifft einen optoelektronischer Sensor, insbesondere Lichtschranke oder Lichttaster, mit wenigstens einem Lichtsender und wenigstens einem Empfangselement.The The invention relates to an optoelectronic sensor, in particular Photocell or light scanner, with at least one light transmitter and at least one receiving element.
Optisch Sensoren haben üblicherweise feststehende Linsensysteme.optical Sensors usually have fixed lens systems.
Im Automatisierungsbereich werden zunehmend Bussysteme eingesetzt, die Sensorinformationen weiterleiten und eine Parametrierung aller Sensoren ermöglicht. Parametrierbare Sensoren ermöglichen flexible Produktions- und Erfassungssysteme. Die optischen Systeme wurden bisher bei Bedarf mit elektromechanischen Antrieben verstellt. Neben der Parametereinstellung über Bussysteme ist auch eine manuelle Einstellung über Potentiometer oder eine programmgesteuerte Einstellung über die Sensor-CPU möglich.in the Automation area increasingly bus systems are used, forward the sensor information and parameterize all Sensors possible. Allow parameterizable sensors flexible production and recording systems. The optical systems have been adjusted as required with electromechanical drives. In addition to the parameter setting via Bus systems is also a manual setting via potentiometer or a program-controlled Setting over the sensor CPU possible.
Aufgabe der Erfindung ist die Schaffung eines optoelektronischen Sensors, der ein elektrisch verstellbares Linsensysteme mit hoher Verstellgeschwindigkeit aufweist, einen minimierten mechanischen Verschleiß, sowie geringe mechanische Abmessungen besitzt und mit einer minimalen Steuerleistung auskommt.task the invention is the provision of an optoelectronic sensor, the electrically adjustable lens system with high adjustment speed has a minimized mechanical wear, as well has low mechanical dimensions and with a minimum Tax benefits.
Gelöst wird diese Aufgabe erfindungsgemäß bei einem optoelektronischer Sensor, insbesondere Lichtschranke oder Lichttaster, mit wenigstens einem Lichtsender und wenigstens einem Empfangselement durch die Verwendung wenigstens einer in ihrer Brennweite und/oder optischen Eigenschaft elektrisch veränderbaren Flüssigkeitslinse.Is solved this object according to the invention in a optoelectronic sensor, in particular light barrier or light scanner, with at least one light emitter and at least one receiving element by the use of at least one in their focal length and / or optical property of electrically variable liquid lens.
Ein derartiger Sensor zeichnet sich durch eine wesentlich vereinfachte Handhabung und Bedienfreundlichkeit aus. Von besonderem Vorteil ist dabei, dass die Beeinflussung des Linsensystems problemlos von Außen, also beispielsweise ferngesteuert erfolgen kann.One Such a sensor is characterized by a much simplified Handling and ease of use. Of particular advantage is that the influence of the lens system easily from Outside, so for example, can be done remotely.
Möglich ist dabei, dass die in ihrer Brennweite elektrisch veränderbare Flüssigkeitslinse zur gezielten Formung hinsichtlich Scharfstellung und Lichtfleckdurchmesser des Senderlichtstrahls vor dem Lichtsender angeordnet ist.Is possible in that the in their focal length electrically changeable liquid lens for targeted shaping with regard to focusing and light spot diameter the transmitter light beam is arranged in front of the light emitter.
Sie kann auch zur gezielten Formung hinsichtlich Lage auf dem Empfangselement, Scharfstellung, Intensität oder Lichtfleckdurchmesser des empfangenen Lichtbündels zur Anpassung der Empfangsanordnung an einen bestimmten Detektionsbereich vor dem Empfangselement angeordnet sein.she can also be used for specific shaping with regard to position on the receiving element, Focus, intensity or spot diameter of the received light beam for Adaptation of the receiving arrangement to a specific detection area be arranged in front of the receiving element.
Es ist auch möglich und von Vorteil, wenn sowohl vor dem Lichtsender wie auch dem Empfangselement eine Flüssigkeitslinse angeordnet ist.It is possible, too and advantageous if both in front of the light emitter as well as the receiving element a liquid lens is arranged.
Nach einer weiteren Ausgestaltung ist die Flüssigkeitslinse durch einen asymmetrisch geformten Rahmen oder durch unterschiedliche elektrische Potentiale an separaten Elektroden des Linsenrahmens in ihren Strahlformungseigenschaften asymmetrisch veränderbar. Die so verstellbare Flüssigkeitslinse ist vor dem Empfangselement angeordnet.To In another embodiment, the liquid lens is a asymmetrically shaped frame or by different electrical potentials on separate electrodes of the lens frame in their beam shaping properties asymmetrically changeable. The so adjustable liquid lens is arranged in front of the receiving element.
Schließlich kann die Flüssigkeitslinse im Senderstrahlengang außerhalb der optischen Achse des Lichtsenders angeordnet sein, so dass der Senderstrahl gezielt in mehrere verschiedene Positionen ablenkbar ist.Finally, can the liquid lens in the transmitter beam outside be arranged on the optical axis of the light emitter, so that the Transmitter beam selectively deflected into several different positions is.
Möglich ist es auch, dass die Flüssigkeitslinse außerhalb der optischen Achse des Empfängerstrahlenganges des Empfängers angeordnet ist, so dass das Gesichtsfeld des Empfängers gezielt auf mehrere verschiedene Positionen ablenkbar ist.Is possible it too, that the liquid lens outside the optical axis of the receiver beam path Recipient is arranged so that the field of view of the recipient targeted can be deflected to several different positions.
Nach einer weiteren Ausgestaltung erfolgt durch korrelierte bzw. modulierte elektrische Ansteuerung der Flüssigkeitslinsen vor Sender bzw. Empfänger während des Betriebes ein Wechsel zwischen mehreren optischen Konfigurationen zur Detektion von Strahlung aus unterschiedlichen Richtungen/Raumbereichen, beispielsweise zur Überwachung einer Szene.To a further embodiment is carried out by correlated or modulated electrical control of the liquid lenses in front of transmitter or receiver while the operation a change between several optical configurations for the detection of radiation from different directions / spatial areas, for example for monitoring a scene.
Der optoelektronische Sensor soll nachfolgend am Beispiel einer in der Zeichnung dargestellten Ausführung erläutert werden.Of the Optoelectronic sensor will be described below using the example of in the Drawing illustrated embodiment explained become.
Der
optoelektronische Sensor besteht aus der Steuereinheit (
Diese
Flüssigkeitslinse
wird über
die Steuerleitungen (
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE102005015500A DE102005015500A1 (en) | 2004-04-06 | 2005-03-31 | Optoelectronic sensor has multiple off axis receiver elements with focussing by electrically variable focal length fluid lenses |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004017748.1 | 2004-04-06 | ||
DE102004017748 | 2004-04-06 | ||
DE102005015500A DE102005015500A1 (en) | 2004-04-06 | 2005-03-31 | Optoelectronic sensor has multiple off axis receiver elements with focussing by electrically variable focal length fluid lenses |
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DE102005015500A1 true DE102005015500A1 (en) | 2005-10-27 |
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DE102005015500A Withdrawn DE102005015500A1 (en) | 2004-04-06 | 2005-03-31 | Optoelectronic sensor has multiple off axis receiver elements with focussing by electrically variable focal length fluid lenses |
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Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
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EP2187242A1 (en) | 2008-11-17 | 2010-05-19 | Sick Ag | Optoelectronic sensor and method to focus |
DE102014104029B3 (en) * | 2014-03-24 | 2015-04-23 | Sick Ag | Optoelectronic device and method for taking sharp images |
DE102014119126B3 (en) * | 2014-12-19 | 2015-08-06 | Sick Ag | Strip projector to illuminate a scene with a variable stripe pattern |
DE102014104026B3 (en) * | 2014-03-24 | 2015-08-27 | Sick Ag | Opto-electronic device and method for taking an image |
DE102014104027A1 (en) | 2014-03-24 | 2015-09-24 | Sick Ag | Optoelectronic device and method for acquiring object information |
DE102014104028A1 (en) | 2014-03-24 | 2015-09-24 | Sick Ag | Optoelectronic device and method for adjusting |
DE102016122712B3 (en) * | 2016-11-24 | 2017-11-23 | Sick Ag | Optoelectronic sensor and method for acquiring object information |
DE202016106582U1 (en) | 2016-11-24 | 2018-02-27 | Sick Ag | Opto-electronic sensor for the acquisition of object information |
WO2018086813A1 (en) * | 2016-11-10 | 2018-05-17 | Osram Gmbh | Tof camera, motor vehicle, method for producing a tof camera and method for determining a distance to an object |
DE202021102641U1 (en) | 2021-05-17 | 2022-08-18 | Sick Ag | Sensor device for determining a kinematic variable of a relative movement |
DE102021112648A1 (en) | 2021-05-17 | 2022-11-17 | Sick Ag | Sensor device and method for determining a kinematic variable of a relative movement |
-
2005
- 2005-03-31 DE DE102005015500A patent/DE102005015500A1/en not_active Withdrawn
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2187242B2 (en) † | 2008-11-17 | 2015-08-26 | Sick Ag | Optoelectronic sensor and method to focus |
EP2187242A1 (en) | 2008-11-17 | 2010-05-19 | Sick Ag | Optoelectronic sensor and method to focus |
US9473691B2 (en) | 2014-03-24 | 2016-10-18 | Sick Ag | Optoelectronic apparatus and method for the recording of focused images |
DE102014104026B3 (en) * | 2014-03-24 | 2015-08-27 | Sick Ag | Opto-electronic device and method for taking an image |
CN104950405B (en) * | 2014-03-24 | 2017-06-30 | 西克股份公司 | Optoelectronic device and alignment method |
DE102014104027A1 (en) | 2014-03-24 | 2015-09-24 | Sick Ag | Optoelectronic device and method for acquiring object information |
DE102014104028A1 (en) | 2014-03-24 | 2015-09-24 | Sick Ag | Optoelectronic device and method for adjusting |
EP2924476A1 (en) | 2014-03-24 | 2015-09-30 | Sick Ag | Optoelectronic device and method for capturing an image |
EP2924477A1 (en) | 2014-03-24 | 2015-09-30 | Sick Ag | Optoelectronic device and method for recording object information |
EP2924973A2 (en) | 2014-03-24 | 2015-09-30 | Sick Ag | Opto-electronic device and method for its adjustment |
US9703115B2 (en) | 2014-03-24 | 2017-07-11 | Sick Ag | Optoelectronic apparatus and method of taking an image |
EP2924974A1 (en) | 2014-03-24 | 2015-09-30 | Sick Ag | Opto-electronic device and method for capturing sharp images |
DE102014104029B3 (en) * | 2014-03-24 | 2015-04-23 | Sick Ag | Optoelectronic device and method for taking sharp images |
DE102014104027B4 (en) * | 2014-03-24 | 2020-10-29 | Sick Ag | Optoelectronic device and method for capturing object information |
CN104950405A (en) * | 2014-03-24 | 2015-09-30 | 西克股份公司 | optoelectronic apparatus and method for alignment |
US9746691B2 (en) | 2014-03-24 | 2017-08-29 | Sick Ag | Optoelectronic apparatus and method for alignment |
US9880265B2 (en) | 2014-03-24 | 2018-01-30 | Sick Ag | Optoelectronic apparatus and method for the detection of object information |
DE102014119126B3 (en) * | 2014-12-19 | 2015-08-06 | Sick Ag | Strip projector to illuminate a scene with a variable stripe pattern |
WO2018086813A1 (en) * | 2016-11-10 | 2018-05-17 | Osram Gmbh | Tof camera, motor vehicle, method for producing a tof camera and method for determining a distance to an object |
DE102016122712B3 (en) * | 2016-11-24 | 2017-11-23 | Sick Ag | Optoelectronic sensor and method for acquiring object information |
DE202016106582U1 (en) | 2016-11-24 | 2018-02-27 | Sick Ag | Opto-electronic sensor for the acquisition of object information |
US10634785B2 (en) | 2016-11-24 | 2020-04-28 | Sick Ag | Optoelectronic sensor and method of detecting object information |
DE202021102641U1 (en) | 2021-05-17 | 2022-08-18 | Sick Ag | Sensor device for determining a kinematic variable of a relative movement |
DE102021112648A1 (en) | 2021-05-17 | 2022-11-17 | Sick Ag | Sensor device and method for determining a kinematic variable of a relative movement |
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OP8 | Request for examination as to paragraph 44 patent law | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20111001 |