KR950020461A - Optical disc recording and playback device - Google Patents

Optical disc recording and playback device Download PDF

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Publication number
KR950020461A
KR950020461A KR1019930029051A KR930029051A KR950020461A KR 950020461 A KR950020461 A KR 950020461A KR 1019930029051 A KR1019930029051 A KR 1019930029051A KR 930029051 A KR930029051 A KR 930029051A KR 950020461 A KR950020461 A KR 950020461A
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KR
South Korea
Prior art keywords
optical
polarization
light
optical disc
optical path
Prior art date
Application number
KR1019930029051A
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Korean (ko)
Inventor
연철성
Original Assignee
김광호
삼성전자 주식회사
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019930029051A priority Critical patent/KR950020461A/en
Publication of KR950020461A publication Critical patent/KR950020461A/en

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  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)

Abstract

본 발명은 광디스크 기록 및 재생장치에 관해 개시한다. 본 발명은 양면광디스크의 정보신호를 기록 및 재생하는데 있어서, 광범의 편광성분에 따라 편광분리시키는 편광분리기와 이동 광픽엎 및 광경로 변경부재를 복수로 개입시켜 편광성분에 따른 편광빔의 광경로 변경에 의해 광디스크의 양면을 동시에 독취하여 기록 및 재생이 가능하게 하므로서 정보의 기억용량을 증대시킬 수 있을 뿐만 아니라 정보의 전송속도를 증가시킬 수 있는 효과를 가지는 광디스크 기록 및 재생장치를 제공할 수 있다.The present invention relates to an optical disc recording and reproducing apparatus. According to the present invention, in recording and reproducing information signals of a double-sided optical disc, the optical path of the polarizing beam according to the polarization component is changed through a plurality of polarization separators and moving optical pick-up and optical path changing members that are polarized to separate according to a wide range of polarization components. The present invention provides an optical disc recording and reproducing apparatus having the effect of simultaneously reading both sides of the optical disc and recording and reproducing, thereby increasing the storage capacity of the information and increasing the transfer speed of the information.

Description

광디스크 기록 및 재생장치Optical disc recording and playback device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제4도는 본 발명에 의한 광디스크 기록 및 재생장치의 광디스크 신호기록면에 대한 신호 기록 및 재생 상태의 개략적 측면도이고,4 is a schematic side view of the signal recording and reproducing state on the optical disc signal recording surface of the optical disc recording and reproducing apparatus according to the present invention;

제5도는 본 광디스크 기록 및 재생장치에 의한 광디스크 신호기록면의 정보저장 영역을 보인 도면이다.5 shows an information storage area of an optical disk signal recording surface by the optical disk recording and reproducing apparatus.

Claims (4)

광빔을 출사하는 발광부와, 광디스크를 지지하여 회전가능하도록 하는 회전구동수단과, 상기 회전구동수단에 지지된 광디스크의 양신호 기록면에 대응하여 설치되는 제1이동 광픽엎 및 제2이동 광픽엎과 상기 발광부와 상기 제2이동 광픽엎 사이의 광로상에 위치하여 상기 발광부로부터 출사된 광빔을 제1편광빔과 제2편광빔으로 분리하는 제1편광 분리기와, 상기 발광부와 상기 제1편광 분리기 사이의 광로상에 설치되어 제1편광빔과 제2편광빔의 비율을 조정하는 λ/2파장판과 상기 제1편광분리기로부터 분리된 제1편광빔의 진행경로상에 설치되어 상기 제1이동 광픽엎 측으로 상기 제1편광빔을 진행시키는 제1광경로 변경부재와 상기 λ/2파장판과 나란한 위치의 광로상에 설치되어 신호면에서 반사된 광빔의 광로를 변경시키는 제2광경로 변경부재를 포함하고 편광성분에 따라 광빔을 편광분리시키는 제2편광 분리기를 포함하며 이 제2편광 분리기에 의해 분리된 각 편광빔의 성분에 따라 각 편광빔을 수광하는 제1수광계와 제2수광계를 포함하는 동시에 이들을 집적화하여 내장한 수광부를 구비하여 된 점을 특징으로 하는 광디스크 기록 및 재생장치.A light emitting unit for emitting a light beam, rotation driving means for supporting and rotating the optical disk, first moving optical pick up and second moving optical pick up and corresponding to both signal recording surfaces of the optical disk supported by the rotation driving means, and A first polarization separator positioned on an optical path between the light emitting part and the second moving optical pickup and separating the light beam emitted from the light emitting part into a first polarization beam and a second polarization beam, and the light emitting part and the first polarization light A first wavelength polarizing plate disposed on an optical path between the separators to adjust a ratio of the first polarized beam and the second polarized beam, and installed on a traveling path of the first polarized beam separated from the first polarized separator; A second optical path changing member installed on a first optical path changing member for advancing the first polarized beam to a moving optical pick-up side and an optical path at a position parallel to the λ / 2 wavelength plate to change the optical path of the light beam reflected from the signal plane Absence And a second polarization separator for polarizing and separating the light beam according to the polarization component, and including a first and second light receiving system for receiving each polarization beam according to the components of each polarization beam separated by the second polarization separator. An optical disc recording and reproducing apparatus comprising: a light receiving unit including the same; 제1항에 있어서, 상기 제1이동 광픽엎 및 제2이동 광픽엎은 각각 광경로를 변경시키는 광경로 변경부재와 광디스크에 빔을 집속하는 대물렌지를 모두 내장하여 된 점을 특징으로 하는 광디스크 기록 및 재생장치.The optical disc recording and recording apparatus according to claim 1, wherein the first moving optical pick up and the second moving optical pick up each include an optical path changing member for changing an optical path and an objective range for focusing a beam on the optical disc. Playback device. 제1항에 있어서, 상기 제1수광계와 제2수광계는 각각 광신호 검출렌즈와 광신호 검출소자를 모두 내장하여 된 점을 특징으로 하는 광디스크 기록 및 재생장치.The optical disc recording and reproducing apparatus according to claim 1, wherein the first light receiving system and the second light receiving system each include both an optical signal detecting lens and an optical signal detecting element. 제1항에 있어서, 상기 발광부와 상기 수광부는 집적화되어 고정광학블록을 이루고 있는 점을 특징으로 하는 광디스크 기록 및 재생장치.The optical disc recording and reproducing apparatus according to claim 1, wherein the light emitting portion and the light receiving portion are integrated to form a fixed optical block. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930029051A 1993-12-22 1993-12-22 Optical disc recording and playback device KR950020461A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930029051A KR950020461A (en) 1993-12-22 1993-12-22 Optical disc recording and playback device

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Application Number Priority Date Filing Date Title
KR1019930029051A KR950020461A (en) 1993-12-22 1993-12-22 Optical disc recording and playback device

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KR950020461A true KR950020461A (en) 1995-07-24

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100604027B1 (en) * 1999-07-12 2006-07-24 엘지전자 주식회사 Writing/Reading apparatus and method for phase change disk
KR100595412B1 (en) * 1996-10-21 2006-09-22 도이체 톰손-브란트 게엠베하 Device for reading from or writing to an optical recording medium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100595412B1 (en) * 1996-10-21 2006-09-22 도이체 톰손-브란트 게엠베하 Device for reading from or writing to an optical recording medium
KR100604027B1 (en) * 1999-07-12 2006-07-24 엘지전자 주식회사 Writing/Reading apparatus and method for phase change disk

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