KR970017242A - Optical pickup device for multi-layer recording reproduction - Google Patents
Optical pickup device for multi-layer recording reproduction Download PDFInfo
- Publication number
- KR970017242A KR970017242A KR1019950031911A KR19950031911A KR970017242A KR 970017242 A KR970017242 A KR 970017242A KR 1019950031911 A KR1019950031911 A KR 1019950031911A KR 19950031911 A KR19950031911 A KR 19950031911A KR 970017242 A KR970017242 A KR 970017242A
- Authority
- KR
- South Korea
- Prior art keywords
- optical
- light source
- recording medium
- optical pickup
- recording
- Prior art date
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- Optical Head (AREA)
- Optical Recording Or Reproduction (AREA)
Abstract
다층의 기록막을 갖는 광기록매체를 위한 다층 기록 재생용 광픽업장치가 개시되어 있다.An optical pickup apparatus for multi-layer recording and reproduction for an optical recording medium having a multi-layer recording film is disclosed.
이 개시된 광픽업장치는 빔을 생성 조사하는 광원과, 광원에서 조사된 빔을 평행빔으로 바꾸어 주는 콜리메이팅 렌즈와, 콜리메이팅 렌즈를 통과하여 입사되는 빔을 광기록매체의 각 기록막을 향하도록 적어도 두개의 경로를 갖도록 바꾸어 주는 광경로 변환수단과, 광원에서 조사된 광경로 변환수단에서 변환된 적어도 두개의 경로를 갖는 빔을 각각 수렴하여 각각의 기록막에 스폿이 형성되도록 각각의 경로 상에 배치된 대물렌즈와 광기록매체에서 반사된 빔을 수렴하여 오차신호 및 정보신호를 검출하도록 각각의 경로 상에 배치된 광검출기가 구비되어 된 것을 특징으로 한다.The disclosed optical pickup apparatus includes a light source for generating and irradiating a beam, a collimating lens for converting a beam irradiated from the light source into a parallel beam, and a beam incident through the collimating lens toward at least each recording film of the optical recording medium. Arranged on each path so that the optical path changing means for changing to have two paths and the beam having at least two paths converted by the optical path changing means irradiated from the light source are converged to form spots on each recording film. And an optical detector disposed on each path so as to converge the beam reflected from the objective lens and the optical recording medium to detect an error signal and an information signal.
따라서, 단순한 광학계로 광기록매체에 정보를 기록하거나 기록된 정보를 재생할 수 있는 등 매우 유용하다.Therefore, it is very useful to record information on an optical recording medium or to reproduce recorded information with a simple optical system.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제2도는 본 발명에 따른 다층 기록 재생용 광픽업장치의 일 실시예에 따른 광학적 배치를 보인 구성도이다.2 is a block diagram showing an optical arrangement according to an embodiment of the optical pickup apparatus for multi-layer recording and reproduction according to the present invention.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950031911A KR970017242A (en) | 1995-09-26 | 1995-09-26 | Optical pickup device for multi-layer recording reproduction |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950031911A KR970017242A (en) | 1995-09-26 | 1995-09-26 | Optical pickup device for multi-layer recording reproduction |
Publications (1)
Publication Number | Publication Date |
---|---|
KR970017242A true KR970017242A (en) | 1997-04-30 |
Family
ID=66615966
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950031911A KR970017242A (en) | 1995-09-26 | 1995-09-26 | Optical pickup device for multi-layer recording reproduction |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR970017242A (en) |
-
1995
- 1995-09-26 KR KR1019950031911A patent/KR970017242A/en not_active Application Discontinuation
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Legal Events
Date | Code | Title | Description |
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A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E601 | Decision to refuse application |