JP4575953B2 - 電気光学的読み取り器および画像プロジェクターにおける光ビームの位置のモニタリング - Google Patents
電気光学的読み取り器および画像プロジェクターにおける光ビームの位置のモニタリング Download PDFInfo
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- JP4575953B2 JP4575953B2 JP2007534794A JP2007534794A JP4575953B2 JP 4575953 B2 JP4575953 B2 JP 4575953B2 JP 2007534794 A JP2007534794 A JP 2007534794A JP 2007534794 A JP2007534794 A JP 2007534794A JP 4575953 B2 JP4575953 B2 JP 4575953B2
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- Prior art keywords
- feedback
- drive
- scan
- light beam
- electro
- 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.)
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Classifications
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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
- G06K7/10702—Particularities of propagating elements, e.g. lenses, mirrors
-
- 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
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- 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)
- Transforming Electric Information Into Light Information (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Description
Claims (4)
- 光ビームの位置を決定する装置であって、
該装置は、
反射器(36)とモーター(38)とを有するドライブであって、該反射器(36)は、スキャンラインとしてスキャン周波数で、標的(24、72)に向けて、かつ、該標的(24、72)全域にわたって、スキャニング光ビーム(23)としてメイン光ビームを反射し、該モーター(38)は、該反射器(36)を振動させることにより、該標的(24、72)の上に延びるスキャンラインの二次元ラスターパターンを生成する、ドライブと、
該振動させる動きの間に該標的(24、72)上の各スキャンラインの位置を光学的に検出する電気光学的フィードバックアセンブリであって、該フィードバックアセンブリは、フィードバックビーム(52)の位置を光学的に検出することにより、該スキャン周波数でフィードバック信号を生成する位置感応性デバイス(54、56、88,90)を含み、該フィードバック信号は、該スキャンラインの位置を示す、フィードバックアセンブリと、
該フィードバック信号に応じて該ドライブを制御する制御回路と
を備え、
該装置は、
レーザーダイオード(26)であって、該レーザーダイオード(26)は、該メイン光ビームを生成し、該メイン光ビームを該レーザーダイオード(26)の一つの開口部(64)を通すように方向付け、該レーザーダイオード(26)は、該フィードバックビーム(52)を生成し、該フィードバックビーム(52)を該レーザーダイオード(26)の別の開口部(66)を通すように方向付ける、レーザーダイオード(26)を特徴とする、装置。 - 前記標的は、印(24)またはスクリーン(72)であり、該印(24)から反射された光が電気光学的に読み取られ、該スクリーン(72)から反射された光が視覚可能である、請求項1に記載の装置。
- 前記印(24)は、一次元バーコード記号または二次元バーコード記号である、請求項2に記載の装置。
- 前記モーター(38)は、単一のコイル(40)を有する、請求項1に記載の装置。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/956,693 US7182263B2 (en) | 2004-09-30 | 2004-09-30 | Monitoring light beam position in electro-optical readers and image projectors |
PCT/US2005/035163 WO2006039472A2 (en) | 2004-09-30 | 2005-09-28 | Monitoring light beam position in electro-optical readers and image projectors |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2008517307A JP2008517307A (ja) | 2008-05-22 |
JP2008517307A5 JP2008517307A5 (ja) | 2008-08-28 |
JP4575953B2 true JP4575953B2 (ja) | 2010-11-04 |
Family
ID=36097914
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007534794A Expired - Fee Related JP4575953B2 (ja) | 2004-09-30 | 2005-09-28 | 電気光学的読み取り器および画像プロジェクターにおける光ビームの位置のモニタリング |
Country Status (6)
Country | Link |
---|---|
US (2) | US7182263B2 (ja) |
EP (1) | EP1794702B1 (ja) |
JP (1) | JP4575953B2 (ja) |
CN (1) | CN100517366C (ja) |
TW (1) | TW200623838A (ja) |
WO (1) | WO2006039472A2 (ja) |
Families Citing this family (18)
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US20060118634A1 (en) * | 2004-12-07 | 2006-06-08 | Blythe Michael M | Object with symbology |
US7497578B2 (en) * | 2005-04-28 | 2009-03-03 | Symbol Technologies, Inc. | Monitoring scan mirror motion in electro-optical readers and image projectors |
US7126734B1 (en) * | 2005-09-12 | 2006-10-24 | Symbol Technologies, Inc. | Motor drive circuit with reduced coil crosstalk in a feedback signal indicative of mirror motion in light scanning arrangements |
US8002183B2 (en) * | 2005-10-20 | 2011-08-23 | Metrologic Instruments, Inc. | Scanner flipper integrity indicator |
US7815119B2 (en) * | 2006-06-06 | 2010-10-19 | Symbol Technologies, Inc. | Monitoring scan mirror motion in laser scanning arrangements |
CN101517455B (zh) * | 2006-09-15 | 2012-01-11 | 日本电气株式会社 | 激光投影仪 |
US7997742B2 (en) * | 2008-03-25 | 2011-08-16 | Microvision, Inc. | Capacitive comb feedback for high speed scan mirror |
US20090251670A1 (en) * | 2008-04-03 | 2009-10-08 | Motorola, Inc. | Optical feedback for high speed scan mirror |
JP5568893B2 (ja) * | 2009-06-05 | 2014-08-13 | 日本電気株式会社 | レーザ測距装置及びレーザ測距方法 |
JP5274400B2 (ja) * | 2009-07-28 | 2013-08-28 | 日本信号株式会社 | プレーナ型アクチュエータの取付けユニット |
US8357889B2 (en) | 2010-01-21 | 2013-01-22 | Intersil Americas Inc. | Circuits, systems and methods for vertical and horizontal light beam alignment |
TWI447508B (zh) * | 2010-04-01 | 2014-08-01 | Delta Electronics Inc | 投影裝置以及用於判斷一光點於投影畫面之位置之定位方法 |
CN103079811B (zh) | 2010-09-21 | 2016-08-17 | 法国圣戈班玻璃厂 | 作为平视显示器的玻璃板 |
CN107310130A (zh) | 2011-04-15 | 2017-11-03 | 积水化学工业株式会社 | 具有发光颗粒的薄膜的制备方法 |
EP2751617B1 (de) * | 2011-08-29 | 2020-05-06 | Sekisui Chemical Co., Ltd. | Eine vorrichtung zur erzeugung eines anzeigebildes auf einer verbundglasscheibe |
JP2015141372A (ja) * | 2014-01-30 | 2015-08-03 | 株式会社ミツトヨ | 照射装置、照射方法、測定装置、及び測定方法 |
US9392188B2 (en) * | 2014-08-10 | 2016-07-12 | Corephotonics Ltd. | Zoom dual-aperture camera with folded lens |
CN110297324B (zh) * | 2018-03-21 | 2021-08-03 | 京东方科技集团股份有限公司 | 显示装置和交通工具 |
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JPS5255544A (en) * | 1975-10-28 | 1977-05-07 | Schiller Industries Inc | Apparatus for producing multiiphase scan pattern |
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US4680456A (en) * | 1981-02-27 | 1987-07-14 | Drexler Technology Corporation | Data system employing wallet-size optical card |
JPS61210318A (ja) * | 1985-03-15 | 1986-09-18 | Nec Corp | レ−ザビ−ム・スキヤナ |
US5576529A (en) * | 1986-08-08 | 1996-11-19 | Norand Technology Corporation | Hand-held optically readable information set reader focus with operation over a range of distances |
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-
2004
- 2004-09-30 US US10/956,693 patent/US7182263B2/en active Active
-
2005
- 2005-09-19 TW TW094132299A patent/TW200623838A/zh unknown
- 2005-09-28 EP EP05800113.2A patent/EP1794702B1/en not_active Ceased
- 2005-09-28 CN CNB2005800329639A patent/CN100517366C/zh not_active Expired - Fee Related
- 2005-09-28 JP JP2007534794A patent/JP4575953B2/ja not_active Expired - Fee Related
- 2005-09-28 WO PCT/US2005/035163 patent/WO2006039472A2/en active Application Filing
-
2006
- 2006-11-06 US US11/593,215 patent/US7367510B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
WO2006039472A3 (en) | 2007-03-22 |
US20070181688A1 (en) | 2007-08-09 |
CN100517366C (zh) | 2009-07-22 |
JP2008517307A (ja) | 2008-05-22 |
TW200623838A (en) | 2006-07-01 |
US20060065735A1 (en) | 2006-03-30 |
US7367510B2 (en) | 2008-05-06 |
EP1794702B1 (en) | 2013-05-22 |
WO2006039472A2 (en) | 2006-04-13 |
CN101031929A (zh) | 2007-09-05 |
US7182263B2 (en) | 2007-02-27 |
EP1794702A4 (en) | 2009-12-16 |
EP1794702A2 (en) | 2007-06-13 |
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