KR890017669A - 광학식 픽업에 있어서의 비임 스플릿터의 고정구조 - Google Patents
광학식 픽업에 있어서의 비임 스플릿터의 고정구조 Download PDFInfo
- Publication number
- KR890017669A KR890017669A KR1019890001361A KR890001361A KR890017669A KR 890017669 A KR890017669 A KR 890017669A KR 1019890001361 A KR1019890001361 A KR 1019890001361A KR 890001361 A KR890001361 A KR 890001361A KR 890017669 A KR890017669 A KR 890017669A
- Authority
- KR
- South Korea
- Prior art keywords
- beam splitter
- fixed structure
- light
- splitting surface
- optical pickup
- Prior art date
Links
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
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
-
- 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
- G11B7/1395—Beam splitters or combiners
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Head (AREA)
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
- Mounting And Adjusting Of Optical Elements (AREA)
Abstract
내용 없음
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제 1 도는 본 발명에 의한 광학식 픽업 광학장치의 비임 스플릿터의 고정구조의 측면도, 제2도와 제3도는 비임 스플릿터의 광분할면이 경사한 경우의 레이저비임의 집광점의 보정이 되어지는 과정을 나타내는 설명도.
Claims (1)
- 디스크에 대향하는 대물렌즈로부터 연장되는 광측에 대하여 광분할면이 경사지게 배치된 비임스플릿터가 설치되어 있고, 또 이 광분할면의 투과방향 및 광분할면의 반사방향의 어느 하나인가의 일방이 발광소자가 배설되고, 타방은 수광소자가 배설되어 있는 광학식픽업에 있어서, 상기 비임스플릿터가 발광소자에 가까운 측의 단부를 지지점으로 하여 한쪽이 지지되어 있는 것을 특징으로하는 광학식픽업에 있어서의 비임스플릿터의 고정구조.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63135075A JPH077510B2 (ja) | 1988-05-31 | 1988-05-31 | 光学式ピックアップにおけるビームスプリッタの固定構造 |
JP88-135075 | 1988-05-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR890017669A true KR890017669A (ko) | 1989-12-16 |
KR910007910B1 KR910007910B1 (ko) | 1991-10-04 |
Family
ID=15143258
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019890001361A KR910007910B1 (ko) | 1988-05-31 | 1989-02-04 | 광학식 픽업에 있어서의 비임 스플릿터의 고정구조 |
Country Status (3)
Country | Link |
---|---|
US (1) | US4973831A (ko) |
JP (1) | JPH077510B2 (ko) |
KR (1) | KR910007910B1 (ko) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2731405B2 (ja) * | 1988-12-02 | 1998-03-25 | 株式会社リコー | 分離型光ピックアップ装置における光軸ずれ補正方法 |
DE69217453T2 (de) * | 1991-11-18 | 1997-08-28 | Pioneer Electronic Corp | Optisches Informationsaufnahmegerät mit abgetrennt-eingeordneten Fotodetektoreinrichtungen |
US20040170109A1 (en) * | 2003-02-28 | 2004-09-02 | Matsushita Electric Industrial Co., Ltd. | Optical pickup |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3624284A (en) * | 1966-09-01 | 1971-11-30 | Battelle Development Corp | Photographic record of digital information and playback system including optical scanner |
NL7215307A (ko) * | 1972-11-11 | 1974-05-14 | ||
US4037252A (en) * | 1973-11-10 | 1977-07-19 | U.S. Philips Corporation | Apparatus for reading a disc-shaped record carrier with plural scanning spots for stable radial tracking |
FR2313716A1 (fr) * | 1975-06-03 | 1976-12-31 | Thomson Brandt | Systeme optique de lecture par reflexion d'un support d'information |
US4201910A (en) * | 1978-03-27 | 1980-05-06 | Innovation Industries, Inc. | Photosensor assembly |
NL8300291A (nl) * | 1983-01-27 | 1984-08-16 | Philips Nv | Inrichting voor het uitlezen van een optische registratiedrager. |
JPS59154873A (ja) * | 1983-02-24 | 1984-09-03 | Asahi Optical Co Ltd | 画像読取装置 |
US4677605A (en) * | 1984-07-06 | 1987-06-30 | Storage Technology Partners Ii | Focus acquisition and maintenance for optical disk system |
US4687916A (en) * | 1984-07-13 | 1987-08-18 | Ricoh Company, Ltd. | Optical pick-up device for both focus and error tracking detection |
JPS61236035A (ja) * | 1985-04-09 | 1986-10-21 | Sony Corp | 光学ヘツド |
US4792674A (en) * | 1986-07-31 | 1988-12-20 | Pioneer Electronic Corporation | Optical head assembly and element holder with positional adjustment |
-
1988
- 1988-05-31 JP JP63135075A patent/JPH077510B2/ja not_active Expired - Fee Related
-
1989
- 1989-02-04 KR KR1019890001361A patent/KR910007910B1/ko not_active IP Right Cessation
- 1989-02-27 US US07/315,951 patent/US4973831A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
KR910007910B1 (ko) | 1991-10-04 |
JPH01303629A (ja) | 1989-12-07 |
JPH077510B2 (ja) | 1995-01-30 |
US4973831A (en) | 1990-11-27 |
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