NL1000923C2 - Autofocusseerinrichting. - Google Patents

Autofocusseerinrichting. Download PDF

Info

Publication number
NL1000923C2
NL1000923C2 NL1000923A NL1000923A NL1000923C2 NL 1000923 C2 NL1000923 C2 NL 1000923C2 NL 1000923 A NL1000923 A NL 1000923A NL 1000923 A NL1000923 A NL 1000923A NL 1000923 C2 NL1000923 C2 NL 1000923C2
Authority
NL
Netherlands
Prior art keywords
movable lens
distance
lens means
displacement
autofocusing device
Prior art date
Application number
NL1000923A
Other languages
English (en)
Dutch (nl)
Inventor
Stefanie Van Leeuwen
Franciscus Hendricus Elferink
Martin Mels
Original Assignee
Scantech 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 Bv filed Critical Scantech Bv
Priority to NL1000923A priority Critical patent/NL1000923C2/nl
Priority to DE69630997T priority patent/DE69630997T2/de
Priority to AT96202183T priority patent/ATE256299T1/de
Priority to EP96202183A priority patent/EP0757270B1/de
Application granted granted Critical
Publication of NL1000923C2 publication Critical patent/NL1000923C2/nl

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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 OR CALCULATING; 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)
NL1000923A 1995-08-03 1995-08-03 Autofocusseerinrichting. NL1000923C2 (nl)

Priority Applications (4)

Application Number Priority Date Filing Date Title
NL1000923A NL1000923C2 (nl) 1995-08-03 1995-08-03 Autofocusseerinrichting.
DE69630997T DE69630997T2 (de) 1995-08-03 1996-08-02 Autofokusvorrichtung
AT96202183T ATE256299T1 (de) 1995-08-03 1996-08-02 Autofokusvorrichtung
EP96202183A EP0757270B1 (de) 1995-08-03 1996-08-02 Autofokusvorrichtung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1000923 1995-08-03
NL1000923A NL1000923C2 (nl) 1995-08-03 1995-08-03 Autofocusseerinrichting.

Publications (1)

Publication Number Publication Date
NL1000923C2 true NL1000923C2 (nl) 1997-02-04

Family

ID=19761395

Family Applications (1)

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

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
JP2012502349A (ja) * 2008-09-09 2012-01-26 株式会社オプトエレクトロニクス 光学照明装置とその動作方法
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

Citations (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
US4679904A (en) * 1984-04-23 1987-07-14 Pioneer Electronic Corporation Lens driving device for an optical pickup unit with simplified construction
US5122644A (en) * 1988-11-17 1992-06-16 Alps Electric Co., Ltd. Optical code reading device with autofocussing
EP0506071A1 (de) * 1991-03-27 1992-09-30 Nec Corporation Linsensystem für optisches Lesegerät
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
US5291335A (en) * 1990-12-07 1994-03-01 Canon Kabushiki Kaisha Optical equipment having a lens position detector
US5302812A (en) * 1991-12-23 1994-04-12 Symbol Technologies, Inc. Laser scanning device with automatic range and spot size adjustment

Patent Citations (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
US4679904A (en) * 1984-04-23 1987-07-14 Pioneer Electronic Corporation Lens driving device for an optical pickup unit with simplified construction
US5122644A (en) * 1988-11-17 1992-06-16 Alps Electric Co., Ltd. Optical code reading device with autofocussing
US5291335A (en) * 1990-12-07 1994-03-01 Canon Kabushiki Kaisha Optical equipment having a lens position detector
EP0506071A1 (de) * 1991-03-27 1992-09-30 Nec Corporation Linsensystem für optisches Lesegerät
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
EP0757270A1 (de) 1997-02-05
ATE256299T1 (de) 2003-12-15
DE69630997D1 (de) 2004-01-22
DE69630997T2 (de) 2004-10-21

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Legal Events

Date Code Title Description
PD2B A search report has been drawn up
SD Assignments of patents

Owner name: SCANTECH-ID HOLDING B.V.

Effective date: 20060907

VD1 Lapsed due to non-payment of the annual fee

Effective date: 20090301