KR980004517A - CD (CD) / DVD (DVD) combined pickup device - Google Patents

CD (CD) / DVD (DVD) combined pickup device Download PDF

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Publication number
KR980004517A
KR980004517A KR1019960025138A KR19960025138A KR980004517A KR 980004517 A KR980004517 A KR 980004517A KR 1019960025138 A KR1019960025138 A KR 1019960025138A KR 19960025138 A KR19960025138 A KR 19960025138A KR 980004517 A KR980004517 A KR 980004517A
Authority
KR
South Korea
Prior art keywords
polarizing plate
dvd
rotating
double
pickup device
Prior art date
Application number
KR1019960025138A
Other languages
Korean (ko)
Inventor
조복현
Original Assignee
구자홍
Lg 전자주식회사
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.)
Filing date
Publication date
Application filed by 구자홍, Lg 전자주식회사 filed Critical 구자홍
Priority to KR1019960025138A priority Critical patent/KR980004517A/en
Publication of KR980004517A publication Critical patent/KR980004517A/en

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Abstract

본 발명은 씨디(CD)/디브이디(DVD) 겸용 픽업장치는, 입사광과 반사광을 분리하는 위한 빔 스프리터와 빛을 디스크에 포커싱하기 위한 대물렌즈 사이에 배치되어 입사된 빛을 서로 다른 두 방향으로 편광시키는 이중편광판과, 두 방향의 편광방향중 한 방향을 선택하도록 상기 이중편광판을 회전시키기 위한 편광판회전장치를 포함하여 구성되며, 디브이디나 씨디 픽업시 그에 맞게 상기 이중편광판을 회전시키는 간단한 방법으로 픽업함으로써 픽업제조가 용이하며, 또한 상기 이중편광판과 이를 회전시키기 위한 편광판 회전장치는 거의 하나의 구조물로 취급할 수 있기 때문에 픽업면적을 최소화할 수 있는 효과가 있다.The present invention relates to a pickup device for a CD / DVD (DVD), which is arranged between a beam splitter for separating incident light and reflected light and an objective lens for focusing light onto a disc, And a polarizing plate rotating device for rotating the double polarizing plate so as to select one of the polarization directions of the two directions, and by picking up the double polarizing plate by a simple method of rotating the double polarizing plate in accordance with the DVD or CD pickup The polarizing plate and the polarizing plate rotating device for rotating the double polarizing plate can be handled as almost one structure, so that the pickup area can be minimized.

Description

씨디(CD)/디브이디(DVD) 겸용 픽업장치CD (CD) / DVD (DVD) combined pickup device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제3도는 본 발명에 의한 씨디(CD)/디브이디(DVD) 겸용 픽업장치를 도시한 것이다.FIG. 3 shows a CD / DVD (double-sided) pickup apparatus according to the present invention.

제4도는 본 발명에 의한 씨디(CD)/디브이디(DVD) 겸용 픽업장치 중 이중 편광판의 구조를 도시한 것이다.FIG. 4 shows the structure of a dual polarizing plate among a CD / DVD (double-sided) pickup apparatus according to the present invention.

제5도는 본 발명에 의한 씨디(CD)/디브이디(DVD) 겸용 픽업장치 중 이중 편광판 회전장치의 상세구조를 도시한 것이다.FIG. 5 shows a detailed structure of a dual polarizing plate rotating apparatus of a CD / DVD (double-sided DVD) pickup apparatus according to the present invention.

Claims (4)

입사광과 반사광을 분리하기 위한 빔 스프리터와 빛을 디스크에 포커싱하기 위한 대물렌즈 사이에 배치되어 입사된 빛을 서로 다른 두 방향으로 편광시키는 이중편광판과, 두 방향의 편광방향중 한 방향을 선택하도록 상기 이중편광판을 회전시키기 위한 편광판회전장치를 포함하여 구성된 것을 특징으로 하는 씨디(CD)/디브이디(DVD) 겸용 픽업장치A dual polarizing plate arranged between a beam splitter for separating the incident light and the reflected light and an objective lens for focusing the light onto the disk and polarizing the incident light in two different directions; And a polarizing plate rotating device for rotating the double polarizing plate. The CD / 제1항에 있어서, 상기 이중편광판은 환형임을 특징으로 하는 씨디(CD)/디브이디(DVD) 겸용 픽업장치2. The pickup device according to claim 1, wherein the double polarizer is annular. 제1항에 있어서, 상기 편광판 회전장치는 상기 이중편광판을 장착할 수 있으며 자성을 띠는 로테이터와, 상기 로터이터와 반대극의 자성을 띠는 스테이터로 구성된 것을 특징으로 하는 씨디(CD)/디브이디(DVD) 겸용 픽업장치2. The optical disc apparatus according to claim 1, wherein the polarizer rotating device comprises a rotator that can mount the double polarizer, and a magnetic stator having a magnetism opposite to that of the rotor. (DVD) combined pickup device 제3항에 있어서, 상기 로테이터와 스테이터 중 어느 하나는 사용자의 선택에 따라 회전 또는 정지할 수 있는 영구자석이며, 다른 하나는 전기적으로 극성을 바꿀 수 있는 전자석임을 특징으로 하는 씨디(CD)/디브이디(DVD) 겸용 픽업장치4. The magnetic disk apparatus according to claim 3, wherein one of the rotator and the stator is a permanent magnet capable of rotating or stopping according to a user's selection, and the other is an electromagnet capable of changing its polarity electrically. (DVD) combined pickup device ※참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960025138A 1996-06-28 1996-06-28 CD (CD) / DVD (DVD) combined pickup device KR980004517A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960025138A KR980004517A (en) 1996-06-28 1996-06-28 CD (CD) / DVD (DVD) combined pickup device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960025138A KR980004517A (en) 1996-06-28 1996-06-28 CD (CD) / DVD (DVD) combined pickup device

Publications (1)

Publication Number Publication Date
KR980004517A true KR980004517A (en) 1998-03-30

Family

ID=66240982

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019960025138A KR980004517A (en) 1996-06-28 1996-06-28 CD (CD) / DVD (DVD) combined pickup device

Country Status (1)

Country Link
KR (1) KR980004517A (en)

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