DE20022728U1 - Optoelectronic device - Google Patents

Optoelectronic device

Info

Publication number
DE20022728U1
DE20022728U1 DE20022728U DE20022728U DE20022728U1 DE 20022728 U1 DE20022728 U1 DE 20022728U1 DE 20022728 U DE20022728 U DE 20022728U DE 20022728 U DE20022728 U DE 20022728U DE 20022728 U1 DE20022728 U1 DE 20022728U1
Authority
DE
Germany
Prior art keywords
optoelectronic device
marks
receiver
transmitter
light 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.)
Expired - Lifetime
Application number
DE20022728U
Other languages
German (de)
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.)
Leuze Electronic GmbH and Co KG
Original Assignee
Leuze Electronic GmbH and Co KG
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 Leuze Electronic GmbH and Co KG filed Critical Leuze Electronic GmbH and Co KG
Priority to DE20022728U priority Critical patent/DE20022728U1/en
Publication of DE20022728U1 publication Critical patent/DE20022728U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/12—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using a selected wavelength, e.g. to sense red marks and ignore blue marks
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10554—Moving beam scanning
    • G06K7/10564—Light sources

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (9)

1. Optoelektronische Vorrichtung zum Erkennen von mit definierten Kon­ trastmustern versehenen Marken mit einem Sendelichtstrahlen emittie­ renden Sender, einer dem Sender nachgeordneten Sendeoptik, einem Empfangslichtstrahlen empfangenden Empfänger, einer dem Empfänger nachgeordneten Empfangsoptik und mit einer Auswerteeinheit, wobei die Sendelichtstrahlen über die Marken geführt sind, an diesen reflektiert werden und als Empfangslichtstrahlen zum Empfänger geführt sind und wobei die dabei am Ausgang des Empfängers generierten Empfangssig­ nale zum Erkennen der Marken in der Auswerteeinheit ausgewertet wer­ den, dadurch gekennzeichnet, dass die Wellenlängen λ der vom Sender (6) emittierten Sendelichtstrahlen (8) im Bereich 350 nm ≦ λ ≦ 450 nm liegen, und dass die Fläche Ae der Empfangsoptik (15) kleiner oder gleich 5 cm2 ist.1. Optoelectronic device for recognizing marks provided with defined contrast patterns with a transmitter emitting transmission light rays, a transmission optics downstream of the transmitter, a receiver receiving reception light rays, a reception optics downstream of the receiver and with an evaluation unit, the transmission light rays being guided over the marks, are reflected on these and are guided as reception light beams to the receiver and the reception signals generated at the output of the receiver are evaluated in order to recognize the marks in the evaluation unit, characterized in that the wavelengths λ of the transmission light beams ( 8 ) emitted by the transmitter ( 6 ) ) lie in the range 350 nm ≦ λ ≦ 450 nm, and that the area A e of the receiving optics ( 15 ) is less than or equal to 5 cm 2 . 2. Optoelektronische Vorrichtung nach Anspruch 1, dadurch gekennzeich­ net, dass die Marken von Barcodes (2) gebildet sind, die aus einer alter­ nierenden Folge von hellen und dunklen Linienelementen (2a, 2b) mit Modulbreiten B im Bereich 0,1 mm ≦ B ≦ 0,4 mm bestehen.2. Optoelectronic device according to claim 1, characterized in that the marks of bar codes ( 2 ) are formed from an alternating sequence of light and dark line elements ( 2 a, 2 b) with module widths B in the range 0.1 mm ≦ B ≦ 0.4 mm. 3. Optoelektronische Vorrichtung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass mit dieser Marken bis zu einer Distanz d von d = 1,5 m erfassbar sind.3. Optoelectronic device according to one of claims 1 or 2, characterized in that with these marks up to a distance d of d = 1.5 m can be detected. 4. Optoelektronische Vorrichtung nach einem der Ansprüche 1-3, dadurch gekennzeichnet, dass der Sender (6) von einer Laserdiode gebildet ist. 4. Optoelectronic device according to one of claims 1-3, characterized in that the transmitter ( 6 ) is formed by a laser diode. 5. Optoelektronische Vorrichtung nach einem der Ansprüche 1-4, da­ durch gekennzeichnet, dass die Marken innerhalb eines vorgegebenen Tiefenschärfebereichs erfassbar sind, wobei der Strahldurchmesser der Sendelichtstrahlen (8) innerhalb des Tiefenschärfebereichs maximal 660 µm beträgt.5. Optoelectronic device according to one of claims 1-4, characterized in that the marks can be detected within a predetermined depth of field, the beam diameter of the transmitted light rays ( 8 ) within the depth of field being a maximum of 660 µm. 6. Optoelektronische Vorrichtung nach einem der Ansprüche 1-5, da­ durch gekennzeichnet, dass diese eine Ablenkeinheit aufweist, mittels de­ rer die Sendelichtstrahlen (8) periodisch innerhalb eines Abtastbereichs geführt sind.6. Optoelectronic device according to one of claims 1-5, characterized in that it has a deflection unit by means of which the transmitted light beams ( 8 ) are guided periodically within a scanning range. 7. Optoelektronische Vorrichtung nach Anspruch 6, dadurch gekennzeich­ net, dass die Ablenkeinheit ein rotierendes Polygonspiegelrad (10) auf­ weist, an dessen Spiegelflächen (11) die Sende- und Empfangslichtstrah­ len (8, 12) reflektiert werden.7. Optoelectronic device according to claim 6, characterized in that the deflection unit has a rotating polygon mirror wheel ( 10 ), on the mirror surfaces ( 11 ) of which the transmit and receive light beams ( 8 , 12 ) are reflected. 8. Optoelektronische Vorrichtung nach Anspruch 7, dadurch gekennzeich­ net, dass die Baugröße des Polygonspiegelrads (10) an den Durchmesser der Empfangsoptik (15) angepasst ist.8. Optoelectronic device according to claim 7, characterized in that the size of the polygon mirror wheel ( 10 ) is adapted to the diameter of the receiving optics ( 15 ). 9. Optoelektronische Vorrichtung nach Anspruch 8, dadurch gekennzeich­ net, dass diese in einem Gehäuse angeordnet ist, dessen Abmessungen an die Größe des Polygonspiegelrads (10) und den Durchmesser der Emp­ fangsoptik (15) angepasst sind.9. Optoelectronic device according to claim 8, characterized in that it is arranged in a housing, the dimensions of which are adapted to the size of the polygon mirror wheel ( 10 ) and the diameter of the receiving optics ( 15 ).
DE20022728U 2000-11-13 2000-11-13 Optoelectronic device Expired - Lifetime DE20022728U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE20022728U DE20022728U1 (en) 2000-11-13 2000-11-13 Optoelectronic device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10056232 2000-11-13
DE20022728U DE20022728U1 (en) 2000-11-13 2000-11-13 Optoelectronic device

Publications (1)

Publication Number Publication Date
DE20022728U1 true DE20022728U1 (en) 2002-02-28

Family

ID=26007648

Family Applications (1)

Application Number Title Priority Date Filing Date
DE20022728U Expired - Lifetime DE20022728U1 (en) 2000-11-13 2000-11-13 Optoelectronic device

Country Status (1)

Country Link
DE (1) DE20022728U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010014783A1 (en) 2010-04-13 2011-10-13 Leuze Electronic Gmbh & Co. Kg Optoelectronic device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010014783A1 (en) 2010-04-13 2011-10-13 Leuze Electronic Gmbh & Co. Kg Optoelectronic device

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20020404

R150 Term of protection extended to 6 years

Effective date: 20040205

R151 Term of protection extended to 8 years

Effective date: 20061220

R152 Term of protection extended to 10 years

Effective date: 20081219

R071 Expiry of right