ATE256299T1 - Autofokusvorrichtung - Google Patents

Autofokusvorrichtung

Info

Publication number
ATE256299T1
ATE256299T1 AT96202183T AT96202183T ATE256299T1 AT E256299 T1 ATE256299 T1 AT E256299T1 AT 96202183 T AT96202183 T AT 96202183T AT 96202183 T AT96202183 T AT 96202183T AT E256299 T1 ATE256299 T1 AT E256299T1
Authority
AT
Austria
Prior art keywords
light beam
lens means
transmitting
image
optical axis
Prior art date
Application number
AT96202183T
Other languages
English (en)
Inventor
Leeuwen Stefanie Van
Martin Mels
Fransiscus Hendricus Elferink
Original Assignee
Scantech Internat B V
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 Internat B V filed Critical Scantech Internat B V
Application granted granted Critical
Publication of ATE256299T1 publication Critical patent/ATE256299T1/de

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
AT96202183T 1995-08-03 1996-08-02 Autofokusvorrichtung ATE256299T1 (de)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
ATE256299T1 true ATE256299T1 (de) 2003-12-15

Family

ID=19761395

Family Applications (1)

Application Number Title Priority Date Filing Date
AT96202183T ATE256299T1 (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
CN102150066A (zh) * 2008-09-09 2011-08-10 Opto电子有限公司 可变焦光学系统
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
EP4296771A1 (de) 2022-06-24 2023-12-27 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
DE69630997D1 (de) 2004-01-22
NL1000923C2 (nl) 1997-02-04
EP0757270B1 (de) 2003-12-10
EP0757270A1 (de) 1997-02-05
DE69630997T2 (de) 2004-10-21

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Legal Events

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