KR970007890A - 광학장치 - Google Patents
광학장치 Download PDFInfo
- Publication number
- KR970007890A KR970007890A KR1019960030039A KR19960030039A KR970007890A KR 970007890 A KR970007890 A KR 970007890A KR 1019960030039 A KR1019960030039 A KR 1019960030039A KR 19960030039 A KR19960030039 A KR 19960030039A KR 970007890 A KR970007890 A KR 970007890A
- Authority
- KR
- South Korea
- Prior art keywords
- light
- emitting laser
- optical device
- receiving element
- laser
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 16
- 239000004065 semiconductor Substances 0.000 claims abstract 4
- 239000000758 substrate Substances 0.000 claims abstract 3
- 238000001514 detection method Methods 0.000 claims 1
Classifications
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- 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
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1353—Diffractive elements, e.g. holograms or gratings
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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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/10532—Heads
- G11B11/10541—Heads for reproducing
- G11B11/10543—Heads for reproducing using optical beam of radiation
-
- 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
- G11B7/123—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate
-
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/12—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto
- H01L31/16—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto the semiconductor device sensitive to radiation being controlled by the light source or sources
- H01L31/165—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto the semiconductor device sensitive to radiation being controlled by the light source or sources the semiconductor sensitive to radiation being characterised by at least one potential-jump or surface barrier
-
- 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
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/026—Monolithically integrated components, e.g. waveguides, monitoring photo-detectors, drivers
- H01S5/0262—Photo-diodes, e.g. transceiver devices, bidirectional devices
- H01S5/0264—Photo-diodes, e.g. transceiver devices, bidirectional devices for monitoring the laser-output
-
- 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
- H01S5/00—Semiconductor lasers
- H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
- H01S5/18—Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities
- H01S5/183—Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
-
- 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
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/022—Mountings; Housings
- H01S5/0225—Out-coupling of light
- H01S5/02253—Out-coupling of light using lenses
-
- 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
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/022—Mountings; Housings
- H01S5/0225—Out-coupling of light
- H01S5/02255—Out-coupling of light using beam deflecting elements
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Theoretical Computer Science (AREA)
- Semiconductor Lasers (AREA)
- Optical Head (AREA)
- Light Receiving Elements (AREA)
- Photo Coupler, Interrupter, Optical-To-Optical Conversion Devices (AREA)
Abstract
광기록매체로부터의 산란광 내지는 회절광으로부터의 정보신호의 검출을 행하는 광학장치에 있어서, 부품개수의 소량화, 광학적 위치조정의 간단화를 도모한다.
면발광(面發光) 레이저와 수광(受光) 소자를 가지는 반도체기판과, 광학계를 가지고, 수광소자의 배치위치를, 광학계의 공초점(共焦点) 영역 밖에서, 피조사부(被照射部)에 대한 면발광레이저의 레이저광조사(照射)에 의한 피조사부로부터의 산란광 내지는 회절광이 얻어지는 영역에 선정한 광학장치를 구성한다.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 의한 광학장치의 일예를 나타낸 구성도, 제2A도는 본 발명의 다른 예의 개략구성도, B는 제2A도의 광학장치의 평면도.
Claims (7)
- 면발광레이저와 수광소자를 가지는 반도체기판과, 상기 면발광레이저로부터의 레이저광의 광로상에 대물렌즈를 가지는 광학계와, 상기 면발광레이저로부터의 레이저광에 의하여 조사되는 피사조부로부터의 산란광 또는 회절광이 입사하는 영역에 수광소자를 가지는 광학장치.
- 청구항 1에 있어서, 상기 면발광레이저는 수직공진기형인 광학장치.
- 청구항 1에 있어서, 상기 면발광레이저는 수평공진기형인 광학장치.
- 청구항 1에 있어서, 상기 면발광레이저는 파장을, 및 상기 대물렌즈의 개구수를 N.A.로 했을 때, 상기 수광소자는, 상기 면발광소자로부터의 레이저광에 의하여 조사되는 상기 피조사부로부터의 반사광의 광측으로부터 1.22/N.A. 보다 떨어진 영역에 선정되는 광학장치.
- 청구항 1에 있어서, 상기 반도체기판에, 상기 면발광레이저의 제어회로를 집적화하는 광학장치.
- 청구항 1에 있어서, 상기 반도체기판에, 상기 수광소자로부터의 검출신호의 신호처리회로를 집적화하는 광학장치.
- 청구항 1에 있어서, 상기 수광소자에 편광분리수단을 가지는 광학장치.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP95-190722 | 1995-07-26 | ||
JP7190722A JPH0945995A (ja) | 1995-07-26 | 1995-07-26 | 光学装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
KR970007890A true KR970007890A (ko) | 1997-02-21 |
Family
ID=16262732
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960030039A KR970007890A (ko) | 1995-07-26 | 1996-07-24 | 광학장치 |
Country Status (4)
Country | Link |
---|---|
US (1) | US5900619A (ko) |
JP (1) | JPH0945995A (ko) |
KR (1) | KR970007890A (ko) |
CN (1) | CN1110000C (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100875137B1 (ko) * | 2002-02-23 | 2008-12-22 | 주식회사 엘지이아이 | 자동 케이블 티브이 밴드 탐색 방법 |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6310689B1 (en) * | 1996-08-23 | 2001-10-30 | Asahi Kogaku Kogyo Kabushiki Kaisha | Pattern reading apparatus |
US6668000B2 (en) * | 1999-07-15 | 2003-12-23 | University Of Maryland, Baltimore County | System and method of optically testing multiple edge-emitting semiconductor lasers residing on a common wafer |
JP2001256665A (ja) * | 2000-01-07 | 2001-09-21 | Rohm Co Ltd | 受発光複合素子およびそれを用いた光ピックアップ装置 |
US6912076B2 (en) | 2000-03-17 | 2005-06-28 | Accu-Sort Systems, Inc. | Coplanar camera scanning system |
GB0210411D0 (en) * | 2002-05-08 | 2002-06-12 | Zarlink Semiconductor Ab | Photonic device with monitor |
US7274882B2 (en) * | 2002-10-30 | 2007-09-25 | Finisar Corporation | Method and apparatus for monitoring the power level of two or more optical transmitters |
JP2004235190A (ja) * | 2003-01-28 | 2004-08-19 | Sony Corp | 光半導体装置 |
JP2005038586A (ja) * | 2003-06-30 | 2005-02-10 | Semiconductor Energy Lab Co Ltd | 光ピックアップ装置 |
JP5029079B2 (ja) * | 2007-03-15 | 2012-09-19 | 富士ゼロックス株式会社 | 半導体素子および光学装置 |
KR101360294B1 (ko) * | 2008-05-21 | 2014-02-11 | 광주과학기술원 | 반사형 광학 센서장치 |
CN104463069B (zh) * | 2014-12-10 | 2017-09-12 | 福建新大陆电脑股份有限公司 | 带双重激光扫描设备的便携式终端 |
CN111490447A (zh) * | 2020-03-23 | 2020-08-04 | 江苏艾立特半导体科技有限公司 | 一种发射和光敏接收一体封装的激光器 |
CN114624004A (zh) * | 2020-12-11 | 2022-06-14 | 深圳中科飞测科技股份有限公司 | 检测系统、检测方法及检测设备 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0378720A (ja) * | 1989-08-22 | 1991-04-03 | Nikon Corp | 共焦点型レーザ走査顕微鏡 |
US5180909A (en) * | 1990-04-27 | 1993-01-19 | Victor Company Of Japan, Ltd. | Optical pickup using diffracted light |
US5233595A (en) * | 1990-10-24 | 1993-08-03 | Olympus Optical Co., Ltd. | Optical pickup including waveguide light intensity detection means for controlling a position/intensity of a semiconductor laser |
JPH04348084A (ja) * | 1991-02-13 | 1992-12-03 | Ricoh Co Ltd | 光機能素子 |
JP2705326B2 (ja) * | 1991-02-19 | 1998-01-28 | 日本電気株式会社 | 光磁気ヘッド装置 |
EP0548440A1 (en) * | 1991-12-23 | 1993-06-30 | International Business Machines Corporation | Bilithic composite for optoelectronic integration |
US5298735A (en) * | 1992-10-07 | 1994-03-29 | Eastman Kodak Company | Laser diode and photodetector circuit assembly |
JP2932868B2 (ja) * | 1992-11-13 | 1999-08-09 | 日本電気株式会社 | 半導体光集積素子 |
US5349210A (en) * | 1993-02-02 | 1994-09-20 | Motorola, Inc. | Optical reading head with angled array |
EP0669592B1 (en) * | 1993-08-17 | 2000-07-19 | Sony Corporation | Optical device for code reader |
JPH07234382A (ja) * | 1994-02-24 | 1995-09-05 | Matsushita Electric Ind Co Ltd | 超解像走査光学装置 |
US5606572A (en) * | 1994-03-24 | 1997-02-25 | Vixel Corporation | Integration of laser with photodiode for feedback control |
JPH07296441A (ja) * | 1994-04-28 | 1995-11-10 | Sony Corp | 光学装置 |
-
1995
- 1995-07-26 JP JP7190722A patent/JPH0945995A/ja active Pending
-
1996
- 1996-07-23 US US08/681,480 patent/US5900619A/en not_active Expired - Fee Related
- 1996-07-24 KR KR1019960030039A patent/KR970007890A/ko active IP Right Grant
- 1996-07-26 CN CN96112236A patent/CN1110000C/zh not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100875137B1 (ko) * | 2002-02-23 | 2008-12-22 | 주식회사 엘지이아이 | 자동 케이블 티브이 밴드 탐색 방법 |
Also Published As
Publication number | Publication date |
---|---|
CN1142105A (zh) | 1997-02-05 |
US5900619A (en) | 1999-05-04 |
JPH0945995A (ja) | 1997-02-14 |
CN1110000C (zh) | 2003-05-28 |
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A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E701 | Decision to grant or registration of patent right | ||
NORF | Unpaid initial registration fee |