KR970017242A - Optical pickup device for multi-layer recording reproduction - Google Patents

Optical pickup device for multi-layer recording reproduction Download PDF

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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
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KR
South Korea
Prior art keywords
optical
light source
recording medium
optical pickup
recording
Prior art date
Application number
KR1019950031911A
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Korean (ko)
Inventor
김민식
Original Assignee
김광호
삼성전자 주식회사
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Publication date
Application filed by 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019950031911A priority Critical patent/KR970017242A/en
Publication of KR970017242A publication Critical patent/KR970017242A/en

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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

다층 기록 재생용 광픽업장치Optical pickup device for multi-layer recording reproduction

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)

다층의 기록막을 갖는 광기록매체를 위한 다층 기록 재생용 광픽업장치에 있어서, 빔을 생성 조사하는 광원과, 상기 광원에서 조사된 빔이 상기 광기록매체의 각 기록막을 향하도록 적어도 두개의 경로를 갖도록 바꾸어주는 광경로 변환수단과, 상기 광원에서 조사되고 상기 광경로 변환수단에서 변환된 적어도 두개의 경로를 갖는 빔을 각각 수렴하여 상기 각각의 기록막에 스폿이 형성되도록 각각의 경로 상에 배치된 대물렌즈와, 상기 광기록매체에서 반사된 빔을 수렴하여 오차신호 및 정보신호를 검출하도록 각각의 경로 상에 배치된 광검출기가 구비되어 된 것을 특징으로 하는 다층 기록 재생용 광픽업장치.An optical pickup apparatus for multi-layer recording and reproduction for an optical recording medium having a multi-layer recording film, comprising: a light source for generating and irradiating a beam and at least two paths so that the beam irradiated from the light source is directed to each recording film of the optical recording medium. A light path converting means for converting the light path converting means and a beam having at least two paths irradiated from the light source and converted by the light path converting means, respectively, so as to form spots on the respective recording films. And an optical detector disposed on each path to converge an objective lens and a beam reflected from the optical recording medium to detect an error signal and an information signal. 제1항에 있어서, 상기 광경로 변환수단은 입사빔을 선택적으로 투과 반사 시키도록 2매 이상의 빔스프리터인 것을 특징으로 하는 다층 기록 재생용 광픽업장치.The optical pickup apparatus according to claim 1, wherein the optical path converting means is at least two beam splitters for selectively transmitting and reflecting an incident beam. 제1항에 있어서, 상기 광원과 광경로 변환수단 사이에 콜리메이팅 렌즈를 더 구비하고, 상기 광경로 변환수단과 각각의 광검출기 사이에 비점수차 렌즈를 더 구비한 것을 특징으로 하는 다층 기록 재생용 광픽업장치.The multi-record recording and reproducing apparatus according to claim 1, further comprising a collimating lens between the light source and the optical path changing means, and further comprising an astigmatism lens between the optical path converting means and each photodetector. Optical pickup device. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950031911A 1995-09-26 1995-09-26 Optical pickup device for multi-layer recording reproduction KR970017242A (en)

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

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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)

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KR (1) KR970017242A (en)

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