JP2017083657A - 映像投射装置及びmemsミラーの制御方法 - Google Patents
映像投射装置及びmemsミラーの制御方法 Download PDFInfo
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- JP2017083657A JP2017083657A JP2015212152A JP2015212152A JP2017083657A JP 2017083657 A JP2017083657 A JP 2017083657A JP 2015212152 A JP2015212152 A JP 2015212152A JP 2015212152 A JP2015212152 A JP 2015212152A JP 2017083657 A JP2017083657 A JP 2017083657A
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- 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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/0816—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements
- G02B26/0833—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements the reflecting element being a micromechanical device, e.g. a MEMS mirror, DMD
- G02B26/0858—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements the reflecting element being a micromechanical device, e.g. a MEMS mirror, DMD the reflecting means being moved or deformed by piezoelectric means
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/10—Scanning systems
- G02B26/101—Scanning systems with both horizontal and vertical deflecting means, e.g. raster or XY scanners
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/10—Scanning systems
- G02B26/12—Scanning systems using multifaceted mirrors
- G02B26/127—Adaptive control of the scanning light beam, e.g. using the feedback from one or more detectors
-
- 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
- H04N9/3135—Driving therefor
-
- 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
- H04N9/3155—Modulator illumination systems for controlling the light source
-
- 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]
- H04N9/3141—Constructional details thereof
- H04N9/3173—Constructional details thereof wherein the projection device is specially adapted for enhanced portability
-
- 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
-
- 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]
- H04N9/3191—Testing thereof
- H04N9/3194—Testing thereof including sensor feedback
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Geometry (AREA)
- Mechanical Optical Scanning Systems (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
- Micromachines (AREA)
- Transforming Electric Information Into Light Information (AREA)
Abstract
Description
Claims (4)
- 第1光源と、
前記第1光源から出力される第1光を反射するミラー部、前記ミラー部を回動軸線周りに回動させるアクチュエータ及び前記ミラー部の振れ角に応じたセンサ信号を出力するセンサを有する光偏向器と、
前記ミラー部を前記アクチュエータによって共振周波数で前記回動軸線周りに回動させることにより、前記第1光を前記ミラー部で反射させた第1反射光によって走査される第1被走査面に映像を形成する制御装置と、
前記第1光とは異なる第2光を前記ミラー部で反射させた第2反射光を通過させるため、前記第2反射光によって走査される第2被走査面に配設された導光器と、
前記導光器を通過した光を検出する光検出器とを備え、
前記制御装置は、
前記第1被走査面に映像を形成する際、前記センサ信号が所定値となってから前記光検出器が光を検出するまでの時間と、前記共振周波数との積算値を算出し、
前記積算値が一定となるように前記アクチュエータを駆動させることを特徴とする映像投射装置。 - 請求項1に記載の映像投射装置において、
前記第1光を分光する分光器と、
前記分光器からの光を反射する固定ミラー部とを備え、
前記第2光は、前記固定ミラー部で反射させた光であることを特徴とする映像投射装置。 - 請求項1に記載の映像投射装置において、
前記第1光源とは異なる第2光源を備え、
前記第2光は、前記第2光源から出力される不可視波長の光であることを特徴とする映像投射装置。 - 光源と、前記光源から出力される第1光を反射するミラー部、前記ミラー部を回動軸線周りに回動させるアクチュエータ及び前記ミラー部の振れ角に応じたセンサ信号を出力するセンサを有する光偏向器と、前記ミラー部を前記アクチュエータにより共振周波数で前記回動軸線周りに回動させることにより、前記第1光を前記ミラー部で反射させた第1反射光によって走査される被走査面に映像を形成する制御装置とを備えた映像投射装置の映像の投射角度範囲を制御する制御方法であって、
前記制御装置が前記ミラー部の共振周波数を取得する共振周波数取得工程と、
前記制御装置が前記ミラー部の振れ角に応じたセンサ信号が所定値となる第1時刻と、前記第1光とは異なる第2光を前記ミラー部で反射させた光が所定位置に配設された光検出器により検出される第2時刻とを計測する計時工程と、
前記制御装置が前記第1時刻から前記第2時刻までの時間と、前記共振周波数との積算値を算出する積算値算出工程と、
前記制御装置が前記積算値が一定となるように前記ミラー部を駆動させる制御工程とを備えることを特徴とする映像投射装置の制御方法。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015212152A JP6604816B2 (ja) | 2015-10-28 | 2015-10-28 | 映像投射装置及びmemsミラーの制御方法 |
US15/294,444 US10080001B2 (en) | 2015-10-28 | 2016-10-14 | Video projection apparatus capable of realizing stable rocking angle at optimum resonant frequency |
EP16194598.5A EP3163353B1 (en) | 2015-10-28 | 2016-10-19 | Video projection apparatus capable of realizing stable rocking angle at optimum resonant frequency |
Applications Claiming Priority (1)
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JP2015212152A JP6604816B2 (ja) | 2015-10-28 | 2015-10-28 | 映像投射装置及びmemsミラーの制御方法 |
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JP2017083657A true JP2017083657A (ja) | 2017-05-18 |
JP6604816B2 JP6604816B2 (ja) | 2019-11-13 |
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EP (1) | EP3163353B1 (ja) |
JP (1) | JP6604816B2 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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EP3540509A1 (en) | 2018-03-12 | 2019-09-18 | Ricoh Company, Ltd. | Projection device, mobile object, and method of setting projection device |
JP2020013073A (ja) * | 2018-07-20 | 2020-01-23 | スタンレー電気株式会社 | 光照射装置 |
US11039111B2 (en) | 2019-05-23 | 2021-06-15 | Microsoft Technology Licensing, Llc | MEMS control method to provide trajectory control |
US11108735B2 (en) | 2019-06-07 | 2021-08-31 | Microsoft Technology Licensing, Llc | Mapping subnets in different virtual networks using private address space |
US11846770B2 (en) | 2020-01-23 | 2023-12-19 | Stanley Electric Co., Ltd. | Light deflector and method for controlling light deflector |
Families Citing this family (4)
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EP3521894B1 (en) | 2018-02-06 | 2023-11-08 | Murata Manufacturing Co., Ltd. | Mems reflector system with trajectory control |
JP7048443B2 (ja) * | 2018-07-19 | 2022-04-05 | スタンレー電気株式会社 | 光投射装置 |
CN110850586A (zh) * | 2019-10-21 | 2020-02-28 | 歌尔股份有限公司 | 振镜扫描中激光器的控制系统 |
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2015
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2016
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- 2016-10-19 EP EP16194598.5A patent/EP3163353B1/en active Active
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
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EP3540509A1 (en) | 2018-03-12 | 2019-09-18 | Ricoh Company, Ltd. | Projection device, mobile object, and method of setting projection device |
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US11846770B2 (en) | 2020-01-23 | 2023-12-19 | Stanley Electric Co., Ltd. | Light deflector and method for controlling light deflector |
Also Published As
Publication number | Publication date |
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EP3163353B1 (en) | 2021-09-15 |
JP6604816B2 (ja) | 2019-11-13 |
US20170127033A1 (en) | 2017-05-04 |
EP3163353A1 (en) | 2017-05-03 |
US10080001B2 (en) | 2018-09-18 |
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