KR940001451B1 - 광헤드 - Google Patents
광헤드 Download PDFInfo
- Publication number
- KR940001451B1 KR940001451B1 KR1019900022181A KR900022181A KR940001451B1 KR 940001451 B1 KR940001451 B1 KR 940001451B1 KR 1019900022181 A KR1019900022181 A KR 1019900022181A KR 900022181 A KR900022181 A KR 900022181A KR 940001451 B1 KR940001451 B1 KR 940001451B1
- Authority
- KR
- South Korea
- Prior art keywords
- optical
- prism
- substantially flat
- semiconductor laser
- optical head
- 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.)
- Expired - Fee Related
Links
- 230000003287 optical effect Effects 0.000 title claims description 66
- 239000000758 substrate Substances 0.000 claims description 27
- 239000004065 semiconductor Substances 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 12
- 238000002834 transmittance Methods 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 description 15
- 230000001070 adhesive effect Effects 0.000 description 10
- 238000001514 detection method Methods 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
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
- G11B7/123—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
-
- 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
- G11B7/22—Apparatus or processes for the manufacture of optical heads, e.g. assembly
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Head (AREA)
Abstract
Description
Claims (2)
- 디스크상에 정보를 기록하고, 재생하기 위한 광헤드로서, 반도체레이저유니트와, 디스크로부터의 반사광을 검출하는 디텍터와, 상기 반도체레이저와 디텍터를 유지하는 단면이 대략 ㄷ자 형상의 하우징체와, 상기 하우징체와 동일한 재질인 대략 평판형상의 기판과, 상기 대략 평판형상의 기판에 대해서 접착에 의해 고정된, 상기 반도체레이저로부터의 출사광학계에 있는 비임정형프리즘, 편향비임 스플릿터 또는 이들을 복합한 프리즘, 및 상기 디스크로부터의 반사광학계에 있는 프리즘, 미러등을 가지고, 상기 대략 평판형상의 기판은 이위에 접착된 프리즘, 미러등이 상기 하우징체내에 덮이도록 해서 상기 하우징체에 대해서 일체적으로 고정된 광헤드.
- 제1항에 있어서, 대략 평판형상의 기판이 광의 투과율이 높은 소재로 구성된 평판 또는 대략 평판형상의 기판인 광헤드.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1342680A JP2817301B2 (ja) | 1989-12-28 | 1989-12-28 | 光ヘッド |
JP1-342680 | 1989-12-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR910013105A KR910013105A (ko) | 1991-08-08 |
KR940001451B1 true KR940001451B1 (ko) | 1994-02-23 |
Family
ID=18355665
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019900022181A Expired - Fee Related KR940001451B1 (ko) | 1989-12-28 | 1990-12-28 | 광헤드 |
Country Status (6)
Country | Link |
---|---|
US (1) | US5091793A (ko) |
EP (1) | EP0435348B1 (ko) |
JP (1) | JP2817301B2 (ko) |
KR (1) | KR940001451B1 (ko) |
CA (1) | CA2033230C (ko) |
DE (1) | DE69031418T2 (ko) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0580268A (ja) * | 1991-06-28 | 1993-04-02 | Toshiba Corp | 光学装置及びその固定方法 |
DE4245063B4 (de) * | 1992-09-19 | 2007-12-13 | Leica Microsystems Cms Gmbh | Mikroskop und Verfahren zu seiner Herstellung |
JP3438365B2 (ja) * | 1994-11-29 | 2003-08-18 | ソニー株式会社 | 複合光学装置およびその製造方法 |
US5825560A (en) * | 1995-02-28 | 1998-10-20 | Canon Kabushiki Xaisha | Optical apparatus |
JP2000048374A (ja) * | 1998-07-30 | 2000-02-18 | Matsushita Electric Ind Co Ltd | ディスク記録再生装置 |
US6865743B2 (en) * | 1999-02-24 | 2005-03-08 | Matsushita Electric Industrial Co., Ltd. | Optical head and method of manufacturing the same |
JP3333818B2 (ja) * | 1999-10-01 | 2002-10-15 | アルプス電気株式会社 | 複合光学ユニット |
US6392688B1 (en) * | 1999-10-04 | 2002-05-21 | Point Grey Research Inc. | High accuracy stereo vision camera system |
US6798093B2 (en) * | 2000-07-28 | 2004-09-28 | Canon Kabushiki Kaisha | Dual coil permanent magnet motor having inner annular member |
JP2004253092A (ja) * | 2003-02-21 | 2004-09-09 | Toshiba Corp | 光ピックアップ装置およびその組み立て方法ならびに光ディスク装置 |
JP5317409B2 (ja) | 2006-01-05 | 2013-10-16 | キヤノン株式会社 | 光学走査装置 |
US8081207B2 (en) * | 2006-06-06 | 2011-12-20 | Point Grey Research Inc. | High accuracy stereo camera |
CN101526660B (zh) * | 2008-03-05 | 2011-09-28 | 鸿富锦精密工业(深圳)有限公司 | 镜头模组 |
USD674424S1 (en) * | 2011-09-08 | 2013-01-15 | Leica Microsystems (Schweiz) Ag | Microscope |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3767293A (en) * | 1972-01-03 | 1973-10-23 | Polaroid Corp | Unique prismatic element and mounting arrangement therefor |
GB1414311A (en) * | 1972-07-12 | 1975-11-19 | Pye Ltd | Sepctrophotometers |
US4441818A (en) * | 1980-04-23 | 1984-04-10 | Pharos Ab | Deflection unit |
JPS60187933A (ja) * | 1984-03-07 | 1985-09-25 | Toshiba Corp | 光学的記録再生装置 |
JPH0750526B2 (ja) * | 1986-03-15 | 1995-05-31 | ソニー株式会社 | デイスクプレ−ヤの光学ヘツド装置 |
NL8702034A (nl) * | 1987-08-31 | 1989-03-16 | Philips Nv | Optische eenheid voor het contactloos inschrijven en/of aftasten van een informatiespoor, alsmede inrichting voorzien van de optische eenheid. |
-
1989
- 1989-12-28 JP JP1342680A patent/JP2817301B2/ja not_active Expired - Fee Related
-
1990
- 1990-12-27 CA CA002033230A patent/CA2033230C/en not_active Expired - Fee Related
- 1990-12-27 US US07/634,849 patent/US5091793A/en not_active Expired - Fee Related
- 1990-12-28 DE DE69031418T patent/DE69031418T2/de not_active Expired - Fee Related
- 1990-12-28 KR KR1019900022181A patent/KR940001451B1/ko not_active Expired - Fee Related
- 1990-12-28 EP EP90125771A patent/EP0435348B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5091793A (en) | 1992-02-25 |
JPH03203043A (ja) | 1991-09-04 |
KR910013105A (ko) | 1991-08-08 |
DE69031418T2 (de) | 1998-01-22 |
EP0435348A2 (en) | 1991-07-03 |
CA2033230C (en) | 1995-08-22 |
DE69031418D1 (de) | 1997-10-16 |
EP0435348A3 (en) | 1992-06-10 |
EP0435348B1 (en) | 1997-09-10 |
JP2817301B2 (ja) | 1998-10-30 |
CA2033230A1 (en) | 1991-06-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
PA0109 | Patent application |
Patent event code: PA01091R01D Comment text: Patent Application Patent event date: 19901228 |
|
PA0201 | Request for examination |
Patent event code: PA02012R01D Patent event date: 19901228 Comment text: Request for Examination of Application |
|
PG1501 | Laying open of application | ||
G160 | Decision to publish patent application | ||
PG1605 | Publication of application before grant of patent |
Comment text: Decision on Publication of Application Patent event code: PG16051S01I Patent event date: 19940131 |
|
E701 | Decision to grant or registration of patent right | ||
PE0701 | Decision of registration |
Patent event code: PE07011S01D Comment text: Decision to Grant Registration Patent event date: 19940517 |
|
GRNT | Written decision to grant | ||
PR0701 | Registration of establishment |
Comment text: Registration of Establishment Patent event date: 19940601 Patent event code: PR07011E01D |
|
PR1002 | Payment of registration fee |
Payment date: 19940601 End annual number: 3 Start annual number: 1 |
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PR1001 | Payment of annual fee |
Payment date: 19970220 Start annual number: 4 End annual number: 4 |
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PR1001 | Payment of annual fee |
Payment date: 19980214 Start annual number: 5 End annual number: 5 |
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PR1001 | Payment of annual fee |
Payment date: 19990211 Start annual number: 6 End annual number: 6 |
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Payment date: 20000215 Start annual number: 7 End annual number: 7 |
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PR1001 | Payment of annual fee |
Payment date: 20010215 Start annual number: 8 End annual number: 8 |
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Payment date: 20020214 Start annual number: 9 End annual number: 9 |
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FPAY | Annual fee payment |
Payment date: 20030206 Year of fee payment: 10 |
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PR1001 | Payment of annual fee |
Payment date: 20030206 Start annual number: 10 End annual number: 10 |
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LAPS | Lapse due to unpaid annual fee | ||
PC1903 | Unpaid annual fee |