KR880013257U - 광헤드 - Google Patents
광헤드Info
- Publication number
- KR880013257U KR880013257U KR2019870011584U KR870011584U KR880013257U KR 880013257 U KR880013257 U KR 880013257U KR 2019870011584 U KR2019870011584 U KR 2019870011584U KR 870011584 U KR870011584 U KR 870011584U KR 880013257 U KR880013257 U KR 880013257U
- Authority
- KR
- South Korea
- Prior art keywords
- optical head
- optical
- head
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title 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
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1359—Single prisms
-
- 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
- G11B7/0908—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 for focusing only
- G11B7/0909—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 for focusing only by astigmatic methods
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Head (AREA)
- Optical Recording Or Reproduction (AREA)
- Optical Elements Other Than Lenses (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP186833(U) | 1986-12-05 | ||
| JP1986186833U JPS6391819U (ko) | 1986-12-05 | 1986-12-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR880013257U true KR880013257U (ko) | 1988-08-29 |
| KR900008969Y1 KR900008969Y1 (ko) | 1990-09-29 |
Family
ID=16195420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019870011584U KR900008969Y1 (ko) | 1986-12-05 | 1987-07-15 | 광헤드 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4841507A (ko) |
| EP (1) | EP0270380B1 (ko) |
| JP (1) | JPS6391819U (ko) |
| KR (1) | KR900008969Y1 (ko) |
| CN (1) | CN1003683B (ko) |
| CA (1) | CA1302562C (ko) |
| DE (1) | DE3784859T2 (ko) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4970710A (en) * | 1987-07-29 | 1990-11-13 | Laser Magnetic Storage International Company | Method and apparatus for focus and tracking in an optical disk system |
| US5195081A (en) * | 1988-04-22 | 1993-03-16 | Canon Kabushiki Kaisha | Optical apparatus for effecting recording and/or reproducing of information on/from and optical information recording medium |
| DE68923833T2 (de) * | 1988-06-20 | 1996-06-13 | Mitsubishi Electric Corp | Optischer Kopf mit Kippkorrekturservomechanismus. |
| US5315574A (en) * | 1988-10-28 | 1994-05-24 | Matsushita Electric Industrial Co., Ltd. | Optical head with polarized beam hologram |
| JPH02265028A (ja) * | 1989-04-06 | 1990-10-29 | Mitsubishi Electric Corp | 光記録再生装置 |
| US5027340A (en) * | 1989-06-01 | 1991-06-25 | Mitsubishi Denki Kabushiki Kaisha | Object lens head assembly |
| JP2781625B2 (ja) * | 1989-12-13 | 1998-07-30 | 株式会社日立製作所 | 情報処理装置 |
| JPH0417125A (ja) * | 1990-05-09 | 1992-01-21 | Mitsubishi Electric Corp | 光記録再生装置 |
| US6185166B1 (en) | 1993-06-21 | 2001-02-06 | Fujitsu Limited | Optical information recording/reproducing apparatus |
| DE4322149A1 (de) * | 1993-06-21 | 1994-12-22 | Fujitsu Ltd | Optische Informationsaufzeichnungs-/Wiedergabevorrichtung |
| US5742572A (en) * | 1993-06-21 | 1998-04-21 | Fujitsu Limited | Optical information recording/reproducing apparatus which detects focal error |
| JP3019181B2 (ja) * | 1993-12-27 | 2000-03-13 | 日本電気株式会社 | 光ヘッドのサーボ信号検出装置 |
| KR100200828B1 (ko) * | 1994-07-30 | 1999-06-15 | 윤종용 | 포커스에러 검출장치 |
| US5840672A (en) * | 1997-07-17 | 1998-11-24 | Ethyl Corporation | Antioxidant system for lubrication base oils |
| JP4003129B2 (ja) * | 2003-01-22 | 2007-11-07 | ソニー株式会社 | 立体撮像装置、立体表示装置、立体撮像表示装置および情報記録方法 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6038771B2 (ja) * | 1978-06-19 | 1985-09-03 | パイオニア株式会社 | 光学式情報読取装置のサ−ボ装置 |
| US4406520A (en) * | 1980-08-14 | 1983-09-27 | Universal Pioneer Corporation | Beam splitter optical system of signal pickup device |
| JPS5897140A (ja) * | 1981-12-04 | 1983-06-09 | Victor Co Of Japan Ltd | 光学的情報信号再生装置 |
| EP0135750B1 (en) * | 1983-08-26 | 1988-06-22 | Hitachi, Ltd. | Optical information recording and reproducing apparatus |
| JPS6076038A (ja) * | 1983-10-03 | 1985-04-30 | Mitsubishi Electric Corp | 光学式情報処理装置 |
| JP3033641B2 (ja) * | 1992-08-27 | 2000-04-17 | 北陸日本電気ソフトウェア株式会社 | エディタ上での位置チェック方式 |
| JPH06129049A (ja) * | 1992-10-15 | 1994-05-10 | Matsushita Electric Works Ltd | システム天井 |
-
1986
- 1986-12-05 JP JP1986186833U patent/JPS6391819U/ja active Pending
-
1987
- 1987-07-15 KR KR2019870011584U patent/KR900008969Y1/ko not_active IP Right Cessation
- 1987-07-31 CN CN87105755.7A patent/CN1003683B/zh not_active Expired
- 1987-12-01 US US07/127,049 patent/US4841507A/en not_active Expired - Fee Related
- 1987-12-03 CA CA000553454A patent/CA1302562C/en not_active Expired - Fee Related
- 1987-12-04 EP EP87310715A patent/EP0270380B1/en not_active Expired - Lifetime
- 1987-12-04 DE DE87310715T patent/DE3784859T2/de not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA1302562C (en) | 1992-06-02 |
| EP0270380A2 (en) | 1988-06-08 |
| DE3784859D1 (de) | 1993-04-22 |
| EP0270380B1 (en) | 1993-03-17 |
| EP0270380A3 (en) | 1990-04-25 |
| DE3784859T2 (de) | 1993-10-14 |
| CN87105755A (zh) | 1988-07-20 |
| JPS6391819U (ko) | 1988-06-14 |
| CN1003683B (zh) | 1989-03-22 |
| KR900008969Y1 (ko) | 1990-09-29 |
| US4841507A (en) | 1989-06-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E701 | Decision to grant or registration of patent right | ||
| REGI | Registration of establishment | ||
| FPAY | Annual fee payment |
Payment date: 19930908 Year of fee payment: 4 |
|
| LAPS | Lapse due to unpaid annual fee |