[go: up one dir, main page]

DE19821112C1 - Light reflection sensor for object detection - Google Patents

Light reflection sensor for object detection

Info

Publication number
DE19821112C1
DE19821112C1 DE1998121112 DE19821112A DE19821112C1 DE 19821112 C1 DE19821112 C1 DE 19821112C1 DE 1998121112 DE1998121112 DE 1998121112 DE 19821112 A DE19821112 A DE 19821112A DE 19821112 C1 DE19821112 C1 DE 19821112C1
Authority
DE
Germany
Prior art keywords
light
rack
lens
transmitter
light source
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
Application number
DE1998121112
Other languages
German (de)
Inventor
Karl Nutz
Christian Bahr
Mustafa Oezkan
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.)
Visolux Elektronik GmbH
Original Assignee
Visolux Elektronik 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 Visolux Elektronik GmbH filed Critical Visolux Elektronik GmbH
Priority to DE29824455U priority Critical patent/DE29824455U1/en
Priority to DE1998121112 priority patent/DE19821112C1/en
Application granted granted Critical
Publication of DE19821112C1 publication Critical patent/DE19821112C1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/481—Constructional features, e.g. arrangements of optical elements
    • G01S7/4811—Constructional features, e.g. arrangements of optical elements common to transmitter and receiver
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/28—Systems for automatic generation of focusing signals
    • G02B7/30—Systems for automatic generation of focusing signals using parallactic triangle with a base line
    • G02B7/32—Systems for automatic generation of focusing signals using parallactic triangle with a base line using active means, e.g. light emitter

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Optics & Photonics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Optical Radar Systems And Details Thereof (AREA)

Abstract

The sensor incorporates a sensor width adjustment (2) using the triangulation principle. A light source (3), light detector (10) and associated lenses (5,8) are positioned side-by-side in a common casing. The light source lens (5) is displaced with respect to the light source using a device (4) coupled to the sensor width adjustment, for focusing the light source.

Description

Die Erfindung geht aus von einem Lichttaster mit Tastweitenverstellung nach dem Triangulationsverfahren, bei dem Lichtsender und Empfänger einschließlich ihrer jeweiligen Optik bzw. Linse in einem gemeinsamen Gehäuse nebeneinander angeordnet sind.The invention is based on a light scanner with scanning range adjustment according to the Triangulation process in which the light transmitter and receiver including their respective Optics or lenses are arranged side by side in a common housing.

Ein derartiger Lichttaster ist beispielsweise aus der DE 29 24 685 A1 bekannt. Bei Tastern dieser Art ist der Lichtsender auf eine bestimmte Entfernung focussiert.Such a light sensor is known for example from DE 29 24 685 A1. With buttons of this type, the light transmitter is focused at a certain distance.

Der Erfindung liegt die Aufgabe zugrunde, einen Lichttaster so auszubilden, daß eine laufende Focussierung des Lichtsenders erreicht wird.The invention has for its object to design a light sensor so that a ongoing focusing of the light transmitter is achieved.

Diese Aufgabe wird mit einem Lichttaster gemäß Patentanspruch 1 gelöst.This object is achieved with a light scanner according to claim 1.

Vorteilhafte Ausgestaltungen sind in den Unteransprüchen angegeben.Advantageous refinements are specified in the subclaims.

Die mit der Erfindung erzielten Vorteile bestehen darin, daß
The advantages achieved with the invention are that

  • 1. kleinere Objekte erkannt werden können,1. smaller objects can be recognized,
  • 2. ein Messobjekt in seiner Entfernung genauer bestimmt werden kann und2. a measurement object can be determined more precisely in its distance and
  • 3. ein seitliches Eintauchen eines Messobjektes in der Nähe des Sendesfocus exakter anerkannt wird.3. a lateral immersion of a measurement object in the vicinity of the transmission focus more precisely is recognized.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird nachstehend anhand einer einzigen Figur beschrieben.An embodiment of the invention is shown in the drawing and will described below with reference to a single figure.

Bei dem hier dargestellten Lichttaster 1 mit Tastweitenverstellung 2 sind Lichtsender 3 und Empfänger 10 einschließlich ihrer jeweiligen Optik bzw. Linse 5 bzw. 8 in einem gemeinsamen Gehäuse nebeneinander angeordnet. Der Lichtsender 3 ist mittels einer mit der Tastweiteneinstellung 2 gekoppelten Vorrichtung 4, mit der die Sendelinse 5 relativ zum Sender 3 verschiebbar ist, focussierbar, wobei die Vorrichtung 4 aus einem Zahnrad-Zahnstangengetriebe 6 besteht, bei dem eine erste Zahnstange 7 zur Verschwenkung der Empfängerlinse 8 und eine zweite Zahnstange 9 zur Verschiebung der Sendelinse 5 vorgesehen ist.In the light scanner 1 shown here with scanning range adjustment 2 , the light transmitter 3 and receiver 10 including their respective optics or lens 5 or 8 are arranged side by side in a common housing. The light transmitter 3 can be focused by means of a device 4 coupled to the scanning range setting 2 , with which the transmission lens 5 can be displaced relative to the transmitter 3 , the device 4 consisting of a rack and pinion gear 6 , in which a first rack 7 for pivoting the receiver lens 8 and a second rack 9 for shifting the transmission lens 5 is provided.

Claims (3)

1. Lichttaster mit Tastweitenverstellung nach dem Triangulationsverfahren, bei dem Lichtsender und Empfänger einschließlich ihrer jeweiligen Optik bzw. Linse in einem gemeinsamen Gehäuse nebeneinander angeordnet sind und bei dem der Lichtsender (3) mittels einer mit der Tastweiteneinstellung (2) gekoppelten Vorrichtung (4), mit der die Sendelinse (5) relativ zum Sender (3) verschiebbar ist, focussierbar ist.1. light scanner with scanning range adjustment according to the triangulation method, in which the light transmitter and receiver, including their respective optics or lenses, are arranged next to one another in a common housing and in which the light transmitter ( 3 ) is connected by means of a device ( 4 ) coupled to the scanning range setting ( 2 ), with which the transmission lens ( 5 ) can be moved relative to the transmitter ( 3 ), can be focused. 2. Lichttaster nach Anspruch 1, bei dem die Vorrichtung (4) aus einem Zahnrad- Zahnstangengetriebe (6) besteht, bei dem eine erste Zahnstange (7) zur Verschwenkung der Empfängerlinse (8) und eine zweite Zahnstange (9) zur Verschiebung der Sendelinse (5) vorgesehen ist.2. Light sensor according to claim 1, wherein the device ( 4 ) consists of a rack and pinion gear ( 6 ), in which a first rack ( 7 ) for pivoting the receiver lens ( 8 ) and a second rack ( 9 ) for shifting the transmission lens ( 5 ) is provided. 3. Lichttaster nach Anspruch 1, bei dem als Vorrichtung (4) ein Kurvenscheiben­ getriebe oder eine Hebelübersetzung vorgesehen ist.3. Light sensor according to claim 1, in which a cam gear or a lever transmission is provided as the device ( 4 ).
DE1998121112 1998-05-06 1998-05-06 Light reflection sensor for object detection Expired - Lifetime DE19821112C1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE29824455U DE29824455U1 (en) 1998-05-06 1998-05-06 Light sensor with key width adjustment according to the triangulation process
DE1998121112 DE19821112C1 (en) 1998-05-06 1998-05-06 Light reflection sensor for object detection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1998121112 DE19821112C1 (en) 1998-05-06 1998-05-06 Light reflection sensor for object detection

Publications (1)

Publication Number Publication Date
DE19821112C1 true DE19821112C1 (en) 1999-11-18

Family

ID=7867443

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1998121112 Expired - Lifetime DE19821112C1 (en) 1998-05-06 1998-05-06 Light reflection sensor for object detection

Country Status (1)

Country Link
DE (1) DE19821112C1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10006321A1 (en) * 2000-02-12 2001-08-23 Daimler Chrysler Ag Optical monitoring equipment production, involves shifting axis of at least one of the transmitter and receiver optics, and fixing position of transmitter or receiver optics
DE102015009619A1 (en) * 2015-07-29 2017-02-02 Wenglor sensoric elektronische Geräte GmbH Optical proximity switch
DE102022124438B3 (en) 2022-09-22 2023-11-16 Sick Ag OPTOELECTRONIC SENSOR

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2852153A1 (en) * 1977-12-06 1979-06-07 Lasag Ag PHOTOELECTRIC BARRIER
DE2924685A1 (en) * 1978-06-19 1979-12-20 Omron Tateisi Electronics Co REFLECTIVE TYPE PHOTOELECTRIC SWITCHING DEVICE

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2852153A1 (en) * 1977-12-06 1979-06-07 Lasag Ag PHOTOELECTRIC BARRIER
DE2924685A1 (en) * 1978-06-19 1979-12-20 Omron Tateisi Electronics Co REFLECTIVE TYPE PHOTOELECTRIC SWITCHING DEVICE

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10006321A1 (en) * 2000-02-12 2001-08-23 Daimler Chrysler Ag Optical monitoring equipment production, involves shifting axis of at least one of the transmitter and receiver optics, and fixing position of transmitter or receiver optics
DE102015009619A1 (en) * 2015-07-29 2017-02-02 Wenglor sensoric elektronische Geräte GmbH Optical proximity switch
DE102015009619B4 (en) 2015-07-29 2018-06-28 Wenglor sensoric elektronische Geräte GmbH Optical proximity switch
DE102022124438B3 (en) 2022-09-22 2023-11-16 Sick Ag OPTOELECTRONIC SENSOR
EP4343382A1 (en) 2022-09-22 2024-03-27 Sick Ag Optoelectronic sensor

Similar Documents

Publication Publication Date Title
DE2513027C2 (en) Distance measuring device
DE69323532T2 (en) Optical information reader
EP0947802B1 (en) Measurement arrangement for test pieces dimensions detection,preferably hollow bodies,in particular for bores in workpieces,as well as measurement method for such dimensions
EP1927014B1 (en) Electro-optical measuring device
EP1953504A1 (en) Method for recording an object and optoelectronic device
DE4131737A1 (en) AUTOFOCUS ARRANGEMENT FOR A STEREOMICROSCOPE
EP2019281B1 (en) Method for operating a 3D sensor
DE69927367T2 (en) Optoelectronic shape detection by chromatic coding with lighting levels
EP2210124A1 (en) Device for optical distance measurement
DE3437145C2 (en) Automatic focusing device for photographic cameras
EP0887625B1 (en) Optical position measuring device
DE19821112C1 (en) Light reflection sensor for object detection
EP0735501B1 (en) Colour sensor arrangement for reading colour marks
EP2040097B1 (en) Optoelectronic sensor
DE10056329B4 (en) Optical distance measuring method and distance sensor
WO1999039232A1 (en) Device for optically scanning an object
EP1807790A1 (en) Method and device for acquiring biometric data
EP2147729B1 (en) Reshaping device
DE19619308A1 (en) Combination light scanner for detecting objects in monitoring field, e.g. on conveyor
DE29824455U1 (en) Light sensor with key width adjustment according to the triangulation process
DE102023205077A1 (en) Method and device for determining an object-dependent focus offset, method for measuring an object and coordinate measuring device
DE69805598T2 (en) Device for measuring the distance or angle of incidence of a light beam
DE4026956A1 (en) Video camera for work intensity image - has beam splitter between objective lens and image converter, and phototransmitter elements
DE19524725C1 (en) Photoelectric encoder for scanning optical structures, e.g. for angle measurement device,
EP0092504A2 (en) Fibre-optic measuring device with a sensor and measuring electronics to determine position

Legal Events

Date Code Title Description
8100 Publication of the examined application without publication of unexamined application
D1 Grant (no unexamined application published) patent law 81
8363 Opposition against the patent
8330 Complete disclaimer