DE69630997D1 - Autofokusvorrichtung - Google Patents

Autofokusvorrichtung

Info

Publication number
DE69630997D1
DE69630997D1 DE69630997T DE69630997T DE69630997D1 DE 69630997 D1 DE69630997 D1 DE 69630997D1 DE 69630997 T DE69630997 T DE 69630997T DE 69630997 T DE69630997 T DE 69630997T DE 69630997 D1 DE69630997 D1 DE 69630997D1
Authority
DE
Germany
Prior art keywords
light beam
lens means
transmitting
image
optical axis
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 - Fee Related
Application number
DE69630997T
Other languages
English (en)
Other versions
DE69630997T2 (de
Inventor
Leeuwen Stefanie Van
Martin Mels
Fransiscus Hendricus Elferink
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.)
Scantech ID Holding BV
Original Assignee
Scantech International BV
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 Scantech International BV filed Critical Scantech International BV
Publication of DE69630997D1 publication Critical patent/DE69630997D1/de
Application granted granted Critical
Publication of DE69630997T2 publication Critical patent/DE69630997T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G06K7/10544—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
    • G06K7/10792—Special measures in relation to the object to be scanned
    • G06K7/10801—Multidistance reading
    • G06K7/10811—Focalisation
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G02B7/09—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted for automatic focusing or varying magnification
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K2207/00—Other aspects
    • G06K2207/1013—Multi-focal

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Toxicology (AREA)
  • General Health & Medical Sciences (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Health & Medical Sciences (AREA)
  • Theoretical Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Eye Examination Apparatus (AREA)
  • Automatic Focus Adjustment (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Seal Device For Vehicle (AREA)
  • Focusing (AREA)
DE69630997T 1995-08-03 1996-08-02 Autofokusvorrichtung Expired - Fee Related DE69630997T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL1000923A NL1000923C2 (nl) 1995-08-03 1995-08-03 Autofocusseerinrichting.

Publications (2)

Publication Number Publication Date
DE69630997D1 true DE69630997D1 (de) 2004-01-22
DE69630997T2 DE69630997T2 (de) 2004-10-21

Family

ID=19761395

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69630997T Expired - Fee Related DE69630997T2 (de) 1995-08-03 1996-08-02 Autofokusvorrichtung

Country Status (4)

Country Link
EP (1) EP0757270B1 (de)
AT (1) ATE256299T1 (de)
DE (1) DE69630997T2 (de)
NL (1) NL1000923C2 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6664525B2 (en) * 2001-08-27 2003-12-16 Hewlett-Packard Development Company, L.P. Adjustable focus imaging device
EP2329306A4 (de) * 2008-09-09 2011-08-31 Optoelectronics Co Ltd Optisches system mit variablem focus
EP2657881B1 (de) * 2012-04-27 2014-06-11 Sick Ag Beleuchtungsvorrichtung und Verfahren zur Erzeugung eines Beleuchtungsbereichs
JP5941208B1 (ja) * 2015-02-26 2016-06-29 株式会社オプトエレクトロニクス 光学的情報読取装置用モジュールとそのコリメート調整方法
EP3525026A1 (de) 2018-02-09 2019-08-14 Sick AG Optoelektronischer sensor und verfahren zur fokusverstellung
EP4296771B1 (de) 2022-06-24 2024-05-29 Sick Ag Optoelektronischer sensor und verfahren zur fokusverstellung

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4302830A (en) * 1978-05-10 1981-11-24 Olympus Optical Company Ltd. Optical information reading-out apparatus
JPH064415Y2 (ja) * 1984-04-23 1994-02-02 パイオニア株式会社 レンズ駆動装置
US5122644A (en) * 1988-11-17 1992-06-16 Alps Electric Co., Ltd. Optical code reading device with autofocussing
JPH087316B2 (ja) * 1990-12-07 1996-01-29 キヤノン株式会社 レンズ駆動装置
JP2998289B2 (ja) * 1991-03-27 2000-01-11 日本電気株式会社 バーコード読み取り装置
EP0524349A1 (de) * 1991-07-08 1993-01-27 Opticon Sensors Europe B.V. Abtaster mit zwei Brennweiten und die Verwendung eines solchen Abtasters als Lesestift für Kodierungen
US5302812A (en) * 1991-12-23 1994-04-12 Symbol Technologies, Inc. Laser scanning device with automatic range and spot size adjustment

Also Published As

Publication number Publication date
EP0757270B1 (de) 2003-12-10
DE69630997T2 (de) 2004-10-21
NL1000923C2 (nl) 1997-02-04
ATE256299T1 (de) 2003-12-15
EP0757270A1 (de) 1997-02-05

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: SCANTECH-ID HOLDING B.V., SOESTERBERG, NL

8339 Ceased/non-payment of the annual fee