JP6012276B2 - リサージュ走査を行うスキャナ用の偏向装置 - Google Patents
リサージュ走査を行うスキャナ用の偏向装置 Download PDFInfo
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- JP6012276B2 JP6012276B2 JP2012132549A JP2012132549A JP6012276B2 JP 6012276 B2 JP6012276 B2 JP 6012276B2 JP 2012132549 A JP2012132549 A JP 2012132549A JP 2012132549 A JP2012132549 A JP 2012132549A JP 6012276 B2 JP6012276 B2 JP 6012276B2
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Images
Classifications
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- 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
- G02B26/0841—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 element being moved or deformed by electrostatic 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
- G02B26/0816—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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Optical Scanning Systems (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
- Micromachines (AREA)
- Facsimile Scanning Arrangements (AREA)
Description
f2=画像反復率×(1画像あたりのライン数)/2
f2=画像反復率×(1ラインあたりの画素数)/2
f1=画像反復率×(1画像あたりのライン数)/2+差動周波数+2×帯域幅
f2=画像反復率×(1画像あたりのライン数)/2+2×帯域幅
f2=60Hz×1080/2+2×0.001×(60Hz×1080/2)=32465Hz
従って、最小差動周波数はf1−f2=60Hzとなる。
f2=画像反復率×(1画像あたりのライン数)/2+2×温度誘発帯域幅+2×製作公差帯域幅
x = x0 sin(2πf1t+φ0)
y = y0 sin(2πf2t) (1)
p=q−1=599
f1=f2(q−1)/q=f2−fB
2 固定フレーム
3 バネ
4 ミラープレート
5、6 ガラスプレート
8 制御装置
Claims (9)
- リサージュ走査を行うスキャナ用偏向装置であって、
少なくとも2つの偏向軸において振動すると共に、フレームと、懸架搭載部によって可動式に配置したミラープレートとを有するマイクロミラーと、
前記少なくとも2つの偏向軸において前記マイクロミラーの共鳴動作に対する制御信号を生成する制御装置と、を含み、
前記ミラープレートの前記懸架搭載部が複数のバネを有し、前記バネの一端を前記ミラープレートに接続し、前記バネの他端を固定した前記フレームに接続し、
前記マイクロミラーの前記共鳴動作に対する前記制御信号の周波数が、前記少なくとも2つの偏向軸において差動周波数分だけ異なっており、前記制御信号の前記周波数の値を、所定の走査解像度と所定の走査反復率によって決定し、前記差動周波数は、少なくとも、前記所定の走査反復率と等しく、
互いの前記制御信号の周波数の間の不均衡を生じさせるために、前記複数のバネのうちの少なくとも1つのバネ剛性は残りのバネのものとは異なること、
を特徴とする偏向装置。 - 前記制御装置が制御ループを含み、前記マイクロミラーの振動の測定した位相によって、前記第1及び/又は前記第2の偏向軸に対する前記制御信号の周波数を制御することで、前記振動の最大振幅が前記マイクロミラーの共鳴の範囲内にあるようにすること、
を特徴とする請求項1に記載の偏向装置。 - 前記制御装置は、前記制御信号の周波数を制御することで、前記振動の最大振幅が前記マイクロミラーの前記共鳴の範囲内にあるようにし、そして前記振動の振幅はこれによって、最小解像度の逆数未満まで変更すること、
を特徴とする請求項2に記載の偏向装置。 - 前記バネが曲げバネ又はねじりバネであること、を特徴とする請求項1から3のいずれか一項に記載の偏向装置。
- 前記曲げバネ又は前記ねじりバネは、前記ミラープレートの周りに円軌道部分として具現化すること、を特徴とする請求項4に記載の偏向装置。
- 幅、長さ、厚さ等のバネ形状、及び/又は材料の特性を異ならせることによって、前記異なるバネ剛性を決定すること、を特徴とする請求項1から5のいずれか一項に記載の偏向装置。
- 前記ミラープレートに対して回転対称又は鏡面対称となるように、前記バネを配置すること、を特徴とする請求項1から6のいずれか一項に記載の偏向装置。
- 前記制御装置が駆動電極を含み、前記駆動電極を前記バネ及び/又は前記ミラープレートに取り付けること、又は、前記制御装置が圧電駆動手段を有し、前記手段のアクチュエータを前記バネに配置すること、を特徴とする請求項1から7のいずれか一項に記載の偏向装置。
- 前記マイクロミラーを、真空パッケージすること、を特徴とする請求項1から8のいずれか一項に記載の偏向装置。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011104556.6A DE102011104556B4 (de) | 2011-06-15 | 2011-06-15 | Ablenkvorrichtung für einen Scanner mit Lissajous-Abtastung |
DE102011104556.6 | 2011-06-15 |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2013003583A JP2013003583A (ja) | 2013-01-07 |
JP2013003583A5 JP2013003583A5 (ja) | 2016-05-12 |
JP6012276B2 true JP6012276B2 (ja) | 2016-10-25 |
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JP2012132549A Active JP6012276B2 (ja) | 2011-06-15 | 2012-06-12 | リサージュ走査を行うスキャナ用の偏向装置 |
Country Status (3)
Country | Link |
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US (1) | US8711456B2 (ja) |
JP (1) | JP6012276B2 (ja) |
DE (1) | DE102011104556B4 (ja) |
Cited By (1)
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KR102614491B1 (ko) * | 2018-03-26 | 2023-12-15 | 엘지전자 주식회사 | 전자기력 구동 방식을 이용한 Tripod MEMS 스캐너 |
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DE102011104556B4 (de) | 2011-06-15 | 2021-03-18 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Ablenkvorrichtung für einen Scanner mit Lissajous-Abtastung |
DE102012222988B4 (de) * | 2012-12-12 | 2021-09-23 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Mikromechanische Resonatoranordnung |
WO2014144866A2 (en) * | 2013-03-15 | 2014-09-18 | Praevium Research, Inc. | Widely tunable swept source |
DE102013210059B4 (de) * | 2013-05-29 | 2021-07-01 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung mit einer Feder und einem daran aufgehängten optischen Element |
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TWI638419B (zh) | 2016-04-18 | 2018-10-11 | 村田製作所股份有限公司 | 一種掃描鏡設備與其製造方法 |
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DE102020008076B4 (de) | 2020-06-23 | 2022-03-24 | OQmented GmbH | Glassubstratbasierte mems-spiegelvorrichtung und verfahren zu ihrer herstellung |
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2011
- 2011-06-15 DE DE102011104556.6A patent/DE102011104556B4/de active Active
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- 2012-06-12 JP JP2012132549A patent/JP6012276B2/ja active Active
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KR102614491B1 (ko) * | 2018-03-26 | 2023-12-15 | 엘지전자 주식회사 | 전자기력 구동 방식을 이용한 Tripod MEMS 스캐너 |
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US20120320379A1 (en) | 2012-12-20 |
US8711456B2 (en) | 2014-04-29 |
DE102011104556A1 (de) | 2013-01-03 |
JP2013003583A (ja) | 2013-01-07 |
DE102011104556B4 (de) | 2021-03-18 |
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