JP5392958B2 - 複数のレーザのずれ検出及び補正装置 - Google Patents
複数のレーザのずれ検出及び補正装置 Download PDFInfo
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- JP5392958B2 JP5392958B2 JP2002523550A JP2002523550A JP5392958B2 JP 5392958 B2 JP5392958 B2 JP 5392958B2 JP 2002523550 A JP2002523550 A JP 2002523550A JP 2002523550 A JP2002523550 A JP 2002523550A JP 5392958 B2 JP5392958 B2 JP 5392958B2
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- Prior art keywords
- deviation
- laser
- beams
- photodetector
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
- H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
- H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
- H04N3/22—Circuits for controlling dimensions, shape or centering of picture on screen
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3129—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] scanning a light beam on the display screen
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/315—Modulator illumination systems
- H04N9/3164—Modulator illumination systems using multiple light sources
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3179—Video signal processing therefor
- H04N9/3185—Geometric adjustment, e.g. keystone or convergence
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/011—Head-up displays characterised by optical features comprising device for correcting geometrical aberrations, distortion
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/0025—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical correction, e.g. distorsion, aberration
- G02B27/0031—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical correction, e.g. distorsion, aberration for scanning purposes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/005—Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Geometry (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Mechanical Optical Scanning Systems (AREA)
Description
Claims (5)
- 画像及び/又は動画を表示するために複数のレーザビームを投写するレーザプロジェクタであって、
複数のレーザビームに関する成分ビームの軸からの偏差を検出するビーム偏差検出装置を有し、前記ビーム偏差検出装置は、
上記複数のレーザビームから、赤色ビーム、緑色ビーム及び青色ビームを含む個々の成分ビームを自動的且つ選択的に分離し、該分離された個々の成分ビームの各々を出射する第1の手段であって、上記複数のレーザビームからサンプルを分岐し、該分岐された複数のレーザビームを出射する分岐手段を含む第1の手段と、
上記第1の手段から入射される個々の成分ビームの上記軸に対するずれを検出する第2の手段とを備え、
上記第1の手段は、上記複数のレーザビームから上記赤色ビーム、緑色ビーム及び/又は青色ビームを自動的に且つ選択的に分離し、該分離された成分ビームを出射し、
上記第2の手段は、上記分離されたビームを第1の分離ビームと第2の分離ビームに分割し、上記第1の分離ビームと第2の分離ビームをそれぞれ第1の光路と第2の光路に分岐するビームスプリッタを備え、
上記第1の光路は、第1の電気的に制御可能なシャッタを通り、第1の反射器で反射し、上記ビームスプリッタを通り、単一の光検出器の表面に至る、
ことを特徴とするレーザプロジェクタ。
- 上記第2の光路は、第2の電気的に制御可能なシャッタを通り、第2の反射器で反射し、上記ビームスプリッタを通り、上記単一の光検出器の表面に至ることを特徴とする請求項1記載のレーザプロジェクタ。
- 上記第2の手段は、上記第1及び第2の電気的に制御可能なシャッタを介して上記単一の光検出器の表面上にそれぞれ第1及び第2のスポットを形成する上記第1及び第2の分離ビームを選択的に遮断するコンピュータを備えることを特徴とする請求項2記載のレーザプロジェクタ。
- 上記第2の手段は、上記第1及び第2のスポットの位置を解析して、上記分離ビームに関するビーム偏差又はずれを測定するコンピュータを更に備えることを特徴とする請求項3記載のレーザプロジェクタ。
- 画像及び/又は動画を表示するために複数のレーザビームを投写するレーザプロジェクタであって、
複数のレーザビームに関する成分ビームのずれを検出するレーザビームずれ検出装置を有し、当該レーザビームずれ検出装置は、
1つの入射面と第1及び第2の出射面を有するピックオフ素子と、
上記ピックオフ素子の第1の出力面から上記複数のレーザビームが入射されるカラーホイールと、
上記カラーホイールの出射面に向いた入射面を有するとともに、第1及び第2の出射開口を有するビームスプリッタと、
上記ビームスプリッタの第1の出射開口に面し、該第1の出力開口から第1の距離に位置する第1の光検出器と、
上記ビームスプリッタの第2の出射開口に面し、該第2の出力開口から第2の距離に位置する第2の光検出器と、
上記ピックオフ素子の第2の出射面から上記複数のレーザビームが入射されるビーム偏差補正装置と、
上記第1及び第2の光検出器と上記ビーム偏差補正装置と信号を送受し、ビーム補正制御アルゴリズムを実行するコンピュータとを備えるレーザプロジェクタ。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/651,165 | 2000-08-30 | ||
US09/651,165 US6424412B1 (en) | 2000-08-30 | 2000-08-30 | Efficient system and method for detecting and correcting laser misalignment of plural laser beams |
PCT/US2001/025700 WO2002018870A1 (en) | 2000-08-30 | 2001-08-15 | Detecting and correcting plural laser misalignment |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2004507751A JP2004507751A (ja) | 2004-03-11 |
JP5392958B2 true JP5392958B2 (ja) | 2014-01-22 |
Family
ID=24611815
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2002523550A Expired - Fee Related JP5392958B2 (ja) | 2000-08-30 | 2001-08-15 | 複数のレーザのずれ検出及び補正装置 |
Country Status (7)
Country | Link |
---|---|
US (1) | US6424412B1 (ja) |
EP (1) | EP1328773B8 (ja) |
JP (1) | JP5392958B2 (ja) |
KR (1) | KR100832182B1 (ja) |
CN (1) | CN1250935C (ja) |
AU (1) | AU2001290537A1 (ja) |
WO (1) | WO2002018870A1 (ja) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
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US6738105B1 (en) * | 2000-11-02 | 2004-05-18 | Intel Corporation | Coherent light despeckling |
US6995810B2 (en) * | 2000-11-30 | 2006-02-07 | Texas Instruments Incorporated | Method and system for automated convergence and focus verification of projected images |
JP2003285249A (ja) * | 2002-03-27 | 2003-10-07 | Mori Seiki Co Ltd | 工作機械の精度解析装置 |
JP4104427B2 (ja) * | 2002-10-31 | 2008-06-18 | 日本電産サンキョー株式会社 | 光学特性計測装置 |
JP4446087B2 (ja) * | 2004-03-01 | 2010-04-07 | 独立行政法人情報通信研究機構 | 光検出装置及びこれを用いた光検出システム |
CN100337092C (zh) * | 2005-11-02 | 2007-09-12 | 哈尔滨工业大学 | 漂移量靶标反馈的长距离二维偏振光电自准直装置和方法 |
CN102298250B (zh) * | 2006-11-14 | 2014-06-25 | 奥斯兰姆有限公司 | 具有改进的投影特征的投影方法和投影设备 |
JP2009122455A (ja) * | 2007-11-15 | 2009-06-04 | Funai Electric Co Ltd | 画像表示装置 |
WO2009154134A1 (ja) * | 2008-06-18 | 2009-12-23 | 株式会社日立製作所 | 光ビーム走査型画像投影装置 |
US8675141B2 (en) * | 2010-01-20 | 2014-03-18 | Microvision, Inc. | Closed loop feedback for electronic beam alignment |
CN101927403A (zh) * | 2010-08-02 | 2010-12-29 | 东阳市双燕设备有限公司 | 一种恒定式飞行光路激光切割机 |
DE102011079059A1 (de) * | 2011-07-13 | 2013-01-17 | Osram Ag | Detektionseinrichtung für einen projektor |
CN102944978B (zh) * | 2011-08-15 | 2014-08-06 | 中山新诺科技股份有限公司 | 曝光系统、校准系统、光学引擎、曝光方法和制造方法 |
US9523905B2 (en) * | 2012-08-06 | 2016-12-20 | Intel Corporation | Projection device and a method of manufacturing a projection device |
TWI498535B (zh) * | 2013-12-26 | 2015-09-01 | Chroma Ate Inc | An optical detection device with an on-line correction function |
CN104965526B (zh) * | 2015-07-01 | 2017-10-31 | 天津市视讯软件开发有限公司 | 光束平行准直快速调整检测装置及快速调整检测方法 |
CN106785871A (zh) * | 2017-03-08 | 2017-05-31 | 严伟 | 基于红绿蓝半导体激光器合成白光的装置及方法 |
WO2019198441A1 (ja) * | 2018-04-13 | 2019-10-17 | パナソニックIpマネジメント株式会社 | レーザ溶接方法 |
US11353786B2 (en) * | 2018-09-11 | 2022-06-07 | Sony Corporation | Polarizing beam splitter and projector |
US11342721B1 (en) * | 2019-05-08 | 2022-05-24 | Raytheon Company | Beam director for high-energy laser (HEL) weapon |
CN112013953B (zh) * | 2020-07-09 | 2023-06-20 | 北京工业大学 | 一种激光器巴条的光束指向性偏差计算系统 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH0621901B2 (ja) * | 1983-08-18 | 1994-03-23 | 富士写真フイルム株式会社 | レーザビームの合波方法 |
JPH0829605B2 (ja) * | 1987-06-10 | 1996-03-27 | 富士写真フイルム株式会社 | カラービームの露光制御方法 |
JP2574807B2 (ja) * | 1987-08-28 | 1997-01-22 | 株式会社日立製作所 | 膜厚分布測定方法及びその装置 |
JPH01210805A (ja) * | 1988-02-18 | 1989-08-24 | Yokogawa Electric Corp | 三次元形状測定装置 |
US4847479A (en) * | 1988-06-06 | 1989-07-11 | Trw Inc. | System for controlling the wavelength and colinearity of multiplexed laser beams |
JP3409330B2 (ja) * | 1991-02-08 | 2003-05-26 | ソニー株式会社 | 投射型表示装置の調整装置および調整方法 |
JP3335373B2 (ja) * | 1992-03-27 | 2002-10-15 | ソニー株式会社 | 光学変調装置、光学装置、レーザビームプリンタ、表示装置及び光媒体記録装置 |
JP3735158B2 (ja) * | 1996-06-06 | 2006-01-18 | オリンパス株式会社 | 画像投影システム、画像処理装置 |
JPH10314973A (ja) * | 1997-03-12 | 1998-12-02 | Kawasaki Heavy Ind Ltd | 複合レーザビームによるレーザ加工装置および加工法 |
JP2947513B1 (ja) * | 1998-07-30 | 1999-09-13 | 株式会社ニデック | パターン検査装置 |
-
2000
- 2000-08-30 US US09/651,165 patent/US6424412B1/en not_active Expired - Lifetime
-
2001
- 2001-08-15 WO PCT/US2001/025700 patent/WO2002018870A1/en active Application Filing
- 2001-08-15 AU AU2001290537A patent/AU2001290537A1/en not_active Abandoned
- 2001-08-15 JP JP2002523550A patent/JP5392958B2/ja not_active Expired - Fee Related
- 2001-08-15 EP EP01970544A patent/EP1328773B8/en not_active Expired - Lifetime
- 2001-08-15 KR KR1020037003039A patent/KR100832182B1/ko not_active IP Right Cessation
- 2001-08-15 CN CNB01818099XA patent/CN1250935C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1328773A4 (en) | 2008-02-13 |
CN1471624A (zh) | 2004-01-28 |
KR100832182B1 (ko) | 2008-05-23 |
EP1328773B1 (en) | 2011-10-05 |
US6424412B1 (en) | 2002-07-23 |
KR20030031174A (ko) | 2003-04-18 |
JP2004507751A (ja) | 2004-03-11 |
AU2001290537A1 (en) | 2002-03-13 |
EP1328773B8 (en) | 2012-04-25 |
WO2002018870A1 (en) | 2002-03-07 |
CN1250935C (zh) | 2006-04-12 |
EP1328773A1 (en) | 2003-07-23 |
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