CN1320908A - 倾斜检测器 - Google Patents
倾斜检测器 Download PDFInfo
- Publication number
- CN1320908A CN1320908A CN01110167A CN01110167A CN1320908A CN 1320908 A CN1320908 A CN 1320908A CN 01110167 A CN01110167 A CN 01110167A CN 01110167 A CN01110167 A CN 01110167A CN 1320908 A CN1320908 A CN 1320908A
- Authority
- CN
- China
- Prior art keywords
- lens
- recording surface
- light beam
- emission
- angle detection
- 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 claims abstract description 37
- 238000001514 detection method Methods 0.000 claims description 39
- 238000010586 diagram Methods 0.000 description 10
- 230000011664 signaling Effects 0.000 description 4
- 230000014509 gene expression Effects 0.000 description 3
- 238000000280 densification Methods 0.000 description 2
- 206010010071 Coma Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/13—Optical detectors therefor
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/095—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble
-
- 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
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/095—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble
- G11B7/0956—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble to compensate for tilt, skew, warp or inclination of the disc, i.e. maintain the optical axis at right angles to the disc
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
Description
Claims (5)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR89877/2000 | 2000-03-28 | ||
JP2000089877A JP2001273661A (ja) | 2000-03-28 | 2000-03-28 | 傾き検出装置 |
JP89877/2000 | 2000-03-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1320908A true CN1320908A (zh) | 2001-11-07 |
CN1151498C CN1151498C (zh) | 2004-05-26 |
Family
ID=18605570
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB011101679A Expired - Fee Related CN1151498C (zh) | 2000-03-28 | 2001-03-28 | 倾斜检测器 |
Country Status (4)
Country | Link |
---|---|
US (1) | US6707053B2 (zh) |
JP (1) | JP2001273661A (zh) |
KR (1) | KR20010093753A (zh) |
CN (1) | CN1151498C (zh) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100334623C (zh) * | 2003-08-18 | 2007-08-29 | 松下电器产业株式会社 | 光学头及光信息媒体驱动装置 |
CN100341057C (zh) * | 2002-10-10 | 2007-10-03 | 松下电器产业株式会社 | 光学头及光盘装置 |
WO2011079808A1 (zh) * | 2009-12-31 | 2011-07-07 | 亿广科技(上海)有限公司 | 倾斜感测器 |
CN101103249B (zh) * | 2005-01-12 | 2013-01-02 | 特里伯耶拿有限公司 | 倾斜检测方法和设备 |
CN112888965A (zh) * | 2019-04-15 | 2021-06-01 | 深圳市速腾聚创科技有限公司 | 一种激光雷达 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030134734A1 (en) * | 2001-08-08 | 2003-07-17 | Shiro Nishimoto | Press molding method for glass and manufacturing method for glass substrate using this method |
US7129508B2 (en) * | 2002-01-18 | 2006-10-31 | Honeywell International Inc. | Compact VCSEL sensor with multiple sensing capabilities |
US20070076171A1 (en) * | 2005-09-20 | 2007-04-05 | Fasen Donald J | Wobulator position sensing system and method |
US7733506B2 (en) * | 2007-03-29 | 2010-06-08 | Hong Kong Applied Science And Technology Research Institute Co., Ltd. | Optical tilt monitoring apparatus |
US7742160B2 (en) * | 2008-01-15 | 2010-06-22 | International Business Machines Corporation | Determining angle of incidence with respect to workpiece |
US10489925B2 (en) * | 2017-08-13 | 2019-11-26 | Shenzhen GOODIX Technology Co., Ltd. | 3D sensing technology based on multiple structured illumination |
WO2023062987A1 (ja) * | 2021-10-13 | 2023-04-20 | アルプスアルパイン株式会社 | 鏡筒付きレンズおよび光源装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5461237A (en) * | 1993-03-26 | 1995-10-24 | Nikon Corporation | Surface-position setting apparatus |
JP3028716B2 (ja) * | 1993-09-29 | 2000-04-04 | キヤノン株式会社 | 光学式変位センサ |
JPH10154348A (ja) * | 1996-11-20 | 1998-06-09 | Omron Corp | 光電検出センサ |
JPH10239051A (ja) * | 1997-02-28 | 1998-09-11 | Nikon Corp | 傾斜角測定装置 |
JP3211002B2 (ja) * | 1997-04-24 | 2001-09-25 | 富士通株式会社 | 光記録媒体、チルト検出器、光ディスク装置、チルト検出方法及びチルト補正方法 |
JPH11219528A (ja) * | 1998-02-02 | 1999-08-10 | Olympus Optical Co Ltd | 光ピックアップの出射光軸の調整方法及び出射光軸の調整装置 |
JP2000057608A (ja) * | 1998-08-13 | 2000-02-25 | Pioneer Electron Corp | 光ピックアップ、情報再生装置及び情報記録装置 |
-
2000
- 2000-03-28 JP JP2000089877A patent/JP2001273661A/ja active Pending
-
2001
- 2001-03-28 KR KR1020010016341A patent/KR20010093753A/ko not_active Ceased
- 2001-03-28 CN CNB011101679A patent/CN1151498C/zh not_active Expired - Fee Related
- 2001-03-28 US US09/818,935 patent/US6707053B2/en not_active Expired - Fee Related
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100341057C (zh) * | 2002-10-10 | 2007-10-03 | 松下电器产业株式会社 | 光学头及光盘装置 |
CN100334623C (zh) * | 2003-08-18 | 2007-08-29 | 松下电器产业株式会社 | 光学头及光信息媒体驱动装置 |
CN101103249B (zh) * | 2005-01-12 | 2013-01-02 | 特里伯耶拿有限公司 | 倾斜检测方法和设备 |
WO2011079808A1 (zh) * | 2009-12-31 | 2011-07-07 | 亿广科技(上海)有限公司 | 倾斜感测器 |
CN112888965A (zh) * | 2019-04-15 | 2021-06-01 | 深圳市速腾聚创科技有限公司 | 一种激光雷达 |
CN112888965B (zh) * | 2019-04-15 | 2024-05-31 | 深圳市速腾聚创科技有限公司 | 一种激光雷达 |
Also Published As
Publication number | Publication date |
---|---|
US20010042846A1 (en) | 2001-11-22 |
KR20010093753A (ko) | 2001-10-29 |
US6707053B2 (en) | 2004-03-16 |
CN1151498C (zh) | 2004-05-26 |
JP2001273661A (ja) | 2001-10-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C06 | Publication | ||
PB01 | Publication | ||
CI01 | Correction of invention patent gazette |
Correction item: [33] priority applicant Correct: JP False: KR Number: 45 Page: 98 Volume: 17 |
|
CI02 | Correction of invention patent application |
Correction item: [33] priority applicant Correct: JP False: KR Number: 45 Page: The title page Volume: 17 |
|
COR | Change of bibliographic data |
Free format text: CORRECT: [33] PRIORITY SHEN QINGGUO; FROM: KR TO: JP |
|
ERR | Gazette correction |
Free format text: CORRECT: [33] PRIORITY SHEN QINGGUO; FROM: KR TO: JP |
|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |