KR980004517A - CD (CD) / DVD (DVD) combined pickup device - Google Patents
CD (CD) / DVD (DVD) combined pickup device Download PDFInfo
- 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
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- Optical Head (AREA)
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
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)
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) |
-
1996
- 1996-06-28 KR KR1019960025138A patent/KR980004517A/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 |