KR980004436A - CD / DVD pickup pickup - Google Patents
CD / DVD pickup pickup Download PDFInfo
- Publication number
- KR980004436A KR980004436A KR1019960020979A KR19960020979A KR980004436A KR 980004436 A KR980004436 A KR 980004436A KR 1019960020979 A KR1019960020979 A KR 1019960020979A KR 19960020979 A KR19960020979 A KR 19960020979A KR 980004436 A KR980004436 A KR 980004436A
- Authority
- KR
- South Korea
- Prior art keywords
- dvd
- optical pickup
- optical
- pickup
- polarizing plate
- Prior art date
Links
Landscapes
- Optical Head (AREA)
Abstract
본 발명은 CD와 DVD겸용 광픽업 장치에 있어서, 광로상에 설치된 광학소자에 의해 반사되는 빔에 의한 신호재생 특성의 불량을 제거하기 위한 CD/DVD겸용 광픽업의 잡광제거 장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical pickup device for a CD / DVD combined optical pickup for removing defects in signal reproduction characteristics caused by a beam reflected by an optical element provided on an optical path.
본 발명에 CD/DVD겸용 광픽업 장치에 있어서 대물렌즈가 구비된 액츄에이터에 고정되어 편광방향에 따라 입사되는 빔의 일부를 차폐시키거나 통과시키는 편광판을 광축의 직교방향에 대하여 약 0.5도 정도 경사지게 형성한 구성으로 이루어져 있다.In the optical pickup device for a combined CD / DVD according to the present invention, a polarizing plate which is fixed to an actuator equipped with an objective lens and shields or passes a part of an incident beam according to the polarization direction is formed to be inclined about 0.5 degrees with respect to the orthogonal direction of the optical axis. It consists of one configuration.
본 발명은 광축에 대하여 경사지게 형성된 편광판 구성에 의해 편광판에서 반사된 일부의 빔이 원래의 입사경로를 벗어나 광검출기로는 들어가지 못하게 됨으로써 재생신호는 반사광의 영향을 받지 않게 되는 효과가 있다.According to the present invention, a part of the beam reflected by the polarizing plate is inclined with respect to the optical axis so that the beam is not allowed to enter the photodetector beyond the original path of incidence and thus the reproduction signal is not affected by the reflected light.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제5도는 본 발명의 CD/DVD겸용 광픽업 장치의 광학계 구성도.5 is an optical system configuration diagram of a CD / DVD combined optical pickup device of the present invention.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960020979A KR980004436A (en) | 1996-06-12 | 1996-06-12 | CD / DVD pickup pickup |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960020979A KR980004436A (en) | 1996-06-12 | 1996-06-12 | CD / DVD pickup pickup |
Publications (1)
Publication Number | Publication Date |
---|---|
KR980004436A true KR980004436A (en) | 1998-03-30 |
Family
ID=66284246
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960020979A KR980004436A (en) | 1996-06-12 | 1996-06-12 | CD / DVD pickup pickup |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR980004436A (en) |
-
1996
- 1996-06-12 KR KR1019960020979A patent/KR980004436A/en not_active Application Discontinuation
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E601 | Decision to refuse application |