JP4643644B2 - 拡張された作動範囲上における改善されたレーザ強度変調を有する電気光学リーダ - Google Patents
拡張された作動範囲上における改善されたレーザ強度変調を有する電気光学リーダ Download PDFInfo
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- JP4643644B2 JP4643644B2 JP2007522523A JP2007522523A JP4643644B2 JP 4643644 B2 JP4643644 B2 JP 4643644B2 JP 2007522523 A JP2007522523 A JP 2007522523A JP 2007522523 A JP2007522523 A JP 2007522523A JP 4643644 B2 JP4643644 B2 JP 4643644B2
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- 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
- G06K7/10594—Beam path
- G06K7/10683—Arrangement of fixed elements
-
- 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
- G06K7/10821—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 further details of bar or optical code scanning devices
- G06K7/10831—Arrangement of optical elements, e.g. lenses, mirrors, prisms
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- Artificial Intelligence (AREA)
- Toxicology (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Computer Vision & Pattern Recognition (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Mechanical Optical Scanning Systems (AREA)
- Facsimile Scanning Arrangements (AREA)
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Description
52と比較して)、それゆえ、理想的なガウスビーム輪郭に極めて類似する。
W=AR2+BR4
として記載され得、ここで、Aはピンぼけの係数であり、Bは、球面による収差の係数であり、Rは光線が光学軸からオフセットされる半径距離である。収差のないレンズに対しては、Bはゼロである。しかしながら、本発明に従い、Bは、負の値として選択される。
Claims (6)
- インディシア(15)全体に亘る走査においてレーザビーム(14)を掃引することによって、または、視野全体に亘り、該インディシア(15)から拡散されたレーザ光をイメージングすることによって、該インディシア(15)を電気光学的に読み取るためのシステムにおける光学アセンブリであって、
該インディシア(15)が読み取られる作動範囲(24)または焦点深度を拡張するための光学素子(22;64)であって、該光学素子(22;64)は、光学軸(72)と、該レーザービーム(14)を該光学軸(72)に沿った複数の焦点(P3、P4)に合わせるため、または、該光学軸(72)に沿った複数のイメージングポイントから該レーザ光をイメージングするための一対のレンズ表面(25、26;65、66)とを有し、該レンズ表面(25、26;65、66)は、該光学軸(72)と交差する線(27)に沿って互いに結合されており、該光学素子(22;64)は、互いに直交している長さおよび幅の寸法を有し、該長さおよび幅の寸法は、互いに独立して選択可能である、光学素子(22;64)と、
レーザ強度変調(30、51、52)、および、該作動範囲(24)または焦点深度を低減させるための開口絞り(23)であって、該開口絞り(23)は、光学開口部(31)と、可変の長さおよび幅の寸法を有する該光学開口部(31)を形成する境界(33)に沿って該光学開口部(31)を境界付ける支持部(32)とを含み、該光学開口部(31)は、該境界(33)に沿って間隔をおかれた複数の光通過領域(35、37、39、41、43、45)を有し、該支持部(32)は、該複数の光通過領域(35、37、39、41、43、45)間に、該境界(33)に沿い連続的に配置されている複数の光遮断領域(34、36、38、40、42)を有する、開口絞り(23)と
を備える、アセンブリ。 - 前記光学素子(22)と前記開口絞り(23)とは、一体化されている、請求項1に記載のアセンブリ。
- 前記光学素子(22)の前記レンズ表面(25、26)の各々は、平面である、請求項1に記載のアセンブリ。
- 前記光学素子(22)の前記レンズ表面(65、66)の各々は、湾曲している、請求項1に記載のアセンブリ。
- 前記光学素子(22;64)は、前記レーザビーム(14)を光学的に改変するための円筒形の入射表面(61)を有する、請求項1に記載のアセンブリ。
- 前記光遮断領域(34、36、38、40、42)の各々は、前記光通過領域(35、37、39、41、43、45)の対の間に配置されている、請求項1に記載のアセンブリ。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/897,724 US7063261B2 (en) | 2004-07-23 | 2004-07-23 | Electro-optical reader with improved laser intensity modulation over extended working range |
PCT/US2005/023825 WO2006023111A1 (en) | 2004-07-23 | 2005-06-30 | Electro-optical reader with improved laser intensity modulation over extended working range |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2008507758A JP2008507758A (ja) | 2008-03-13 |
JP2008507758A5 JP2008507758A5 (ja) | 2008-07-10 |
JP4643644B2 true JP4643644B2 (ja) | 2011-03-02 |
Family
ID=35656090
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007522523A Active JP4643644B2 (ja) | 2004-07-23 | 2005-06-30 | 拡張された作動範囲上における改善されたレーザ強度変調を有する電気光学リーダ |
Country Status (6)
Country | Link |
---|---|
US (2) | US7063261B2 (ja) |
EP (1) | EP1771803B1 (ja) |
JP (1) | JP4643644B2 (ja) |
CN (1) | CN100517364C (ja) |
TW (1) | TWI378261B (ja) |
WO (1) | WO2006023111A1 (ja) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7215493B2 (en) * | 2005-01-27 | 2007-05-08 | Psc Scanning, Inc. | Imaging system with a lens having increased light collection efficiency and a deblurring equalizer |
JP4878474B2 (ja) * | 2005-11-30 | 2012-02-15 | 富士通フロンテック株式会社 | 読取装置 |
US7784696B2 (en) | 2006-06-09 | 2010-08-31 | Hand Held Products, Inc. | Indicia reading apparatus having image sensing and processing circuit |
US7740176B2 (en) * | 2006-06-09 | 2010-06-22 | Hand Held Products, Inc. | Indicia reading apparatus having reduced trigger-to-read time |
US7551370B2 (en) * | 2006-07-31 | 2009-06-23 | Symbol Technologies | Negative spherical aberration component-based imaging lens assembly in imaging reader |
US20080067250A1 (en) * | 2006-09-19 | 2008-03-20 | Igor Vinogradov | Imaging reader and method with optically modified field of view |
US8338744B2 (en) | 2006-11-30 | 2012-12-25 | Sumitomo Electric Industries, Ltd. | Condensing optical system, laser processing method and apparatus, and manufacturing method of brittle material blank |
JP4896863B2 (ja) * | 2006-12-27 | 2012-03-14 | 花王株式会社 | 精製焙煎コーヒー豆 |
US20090084856A1 (en) * | 2007-09-28 | 2009-04-02 | Igor Vinogradov | Imaging reader with asymmetrical magnification |
JP5290003B2 (ja) * | 2008-11-29 | 2013-09-18 | 株式会社オプトエレクトロニクス | 光学的情報読取装置、光学的情報読み取り方法、光照射装置及び光照射方法 |
US20100142856A1 (en) * | 2008-12-10 | 2010-06-10 | Shin Takeuchi | Image reading apparatus, and reading method |
CN102246184A (zh) * | 2008-12-10 | 2011-11-16 | Opto电子有限公司 | 用于扫描光学代码的方法和设备 |
US8777105B2 (en) * | 2009-10-21 | 2014-07-15 | Symbol Technologies, Inc. | Imaging reader with asymmetrical magnification |
US8376233B2 (en) * | 2011-06-15 | 2013-02-19 | Metrologic Instruments, Inc. | Bar code symbol reading system employing an extremely elongated laser scanning beam capable of reading poor and damaged quality bar code symbols with improved levels of performance |
US8556179B2 (en) * | 2011-08-16 | 2013-10-15 | Intermec Ip Corp. | Motion tolerant bar code reader |
US8387883B1 (en) * | 2011-08-26 | 2013-03-05 | Honeywell International Inc. | Bar code imagers |
US8844823B2 (en) | 2011-09-15 | 2014-09-30 | Metrologic Instruments, Inc. | Laser scanning system employing an optics module capable of forming a laser beam having an extended depth of focus (DOF) over the laser scanning field |
US8430314B1 (en) * | 2011-11-14 | 2013-04-30 | Symbol Technologies, Inc. | Apparatus for and method of aligning non-rotationally symmetrical imaging lens aperture with an imaging sensor in an imaging reader |
US20140027505A1 (en) * | 2012-07-30 | 2014-01-30 | Sintai Optical (Shenzhen) Co., Ltd. | Configuration Management Systems And Methods for Electronic Devices |
JP2015187853A (ja) * | 2014-03-14 | 2015-10-29 | 株式会社リコー | 光学式情報コード読取り方法 |
CN113557463A (zh) | 2019-03-08 | 2021-10-26 | Pcms控股公司 | 用于基于具有扩展焦深的光束的显示器的光学方法和*** |
CN116107064B (zh) * | 2023-04-13 | 2023-08-22 | 西安玄瑞光电科技有限公司 | 一种单镜头分孔径共焦面分幅光学成像*** |
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JPH05324897A (ja) * | 1992-05-15 | 1993-12-10 | Olympus Optical Co Ltd | バーコード読取装置用撮影範囲表示装置 |
JPH06208642A (ja) * | 1992-08-28 | 1994-07-26 | Olympus Optical Co Ltd | 光学的走査装置 |
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-
2004
- 2004-07-23 US US10/897,724 patent/US7063261B2/en not_active Expired - Fee Related
-
2005
- 2005-06-30 EP EP05764402A patent/EP1771803B1/en active Active
- 2005-06-30 WO PCT/US2005/023825 patent/WO2006023111A1/en active Application Filing
- 2005-06-30 JP JP2007522523A patent/JP4643644B2/ja active Active
- 2005-06-30 CN CNB2005800248769A patent/CN100517364C/zh active Active
- 2005-07-13 TW TW094123712A patent/TWI378261B/zh not_active IP Right Cessation
-
2006
- 2006-03-06 US US11/369,130 patent/US7224538B2/en not_active Expired - Lifetime
Patent Citations (7)
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JPH04217079A (ja) * | 1990-02-26 | 1992-08-07 | Symbol Technol Inc | 広い作業範囲を有するレーザースキャナ |
JPH05324897A (ja) * | 1992-05-15 | 1993-12-10 | Olympus Optical Co Ltd | バーコード読取装置用撮影範囲表示装置 |
JPH06208642A (ja) * | 1992-08-28 | 1994-07-26 | Olympus Optical Co Ltd | 光学的走査装置 |
JPH0855178A (ja) * | 1994-06-30 | 1996-02-27 | Symbol Technol Inc | 光学スキャナー用ビーム成形 |
JPH08153157A (ja) * | 1994-11-28 | 1996-06-11 | Nippondenso Co Ltd | 光学的情報読み取り装置 |
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Also Published As
Publication number | Publication date |
---|---|
TWI378261B (en) | 2012-12-01 |
US20060144944A1 (en) | 2006-07-06 |
US7063261B2 (en) | 2006-06-20 |
JP2008507758A (ja) | 2008-03-13 |
US20060016892A1 (en) | 2006-01-26 |
CN100517364C (zh) | 2009-07-22 |
EP1771803A4 (en) | 2009-05-13 |
US7224538B2 (en) | 2007-05-29 |
CN1989509A (zh) | 2007-06-27 |
WO2006023111A1 (en) | 2006-03-02 |
EP1771803B1 (en) | 2011-10-26 |
TW200617425A (en) | 2006-06-01 |
EP1771803A1 (en) | 2007-04-11 |
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