KR950020464A - Pickup device - Google Patents
Pickup device Download PDFInfo
- Publication number
- KR950020464A KR950020464A KR1019930026603A KR930026603A KR950020464A KR 950020464 A KR950020464 A KR 950020464A KR 1019930026603 A KR1019930026603 A KR 1019930026603A KR 930026603 A KR930026603 A KR 930026603A KR 950020464 A KR950020464 A KR 950020464A
- Authority
- KR
- South Korea
- Prior art keywords
- pickup apparatus
- polarized beams
- spectrometer
- reflected light
- recording
- Prior art date
Links
Landscapes
- Optical Head (AREA)
- Optical Recording Or Reproduction (AREA)
Abstract
복굴절 물질을 이용한 분광기를 채용하여 신호정보 및 에러정보를 처리하는 픽업 장치가 개시되어 있다. 개시된 복굴절 물질을 이용한 픽업 장치는, 소정의 간격으로 배열된 결정(crystal)축을 갖는 복굴절 물질로 형성된 분광기를 구비하여, 그 분광기에 입사되는 반사광을 수직 편광된 2개의 빔과 수평편광된 2개의 빔으로 만들어서 상기 신호검출부 및 에러검출부로 출력할 수 있어, 광학계 구성을 간단히 할 수 있으며, 검출부의 조립 및 조정을 간단히 할 수 있는 이점을 제공한다.A pickup apparatus employing a spectrometer using a birefringent material to process signal information and error information is disclosed. The pickup apparatus using the disclosed birefringent material includes a spectroscope formed of a birefringent material having a crystal axis arranged at predetermined intervals, so that the reflected light incident on the spectrometer is two vertically polarized beams and two horizontally polarized beams. It can be made and output to the signal detection unit and the error detection unit, it is possible to simplify the configuration of the optical system, and provides an advantage that the assembly and adjustment of the detection unit can be simplified.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제4도 내지 제5도는 본 발명에 따른 픽업 장치에 사용된 복굴절 분광기 원리 및 작용을 설명하는 개략적인 구성도이며,4 to 5 are schematic diagrams illustrating the principle and operation of the birefringent spectrometer used in the pickup device according to the present invention,
제6도는 본 발명에 따른 픽업 장치의 일부를 도시한 개략적인 구성도이다.6 is a schematic configuration diagram showing a part of a pickup apparatus according to the present invention.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019930026603A KR950020464A (en) | 1993-12-06 | 1993-12-06 | Pickup device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019930026603A KR950020464A (en) | 1993-12-06 | 1993-12-06 | Pickup device |
Publications (1)
Publication Number | Publication Date |
---|---|
KR950020464A true KR950020464A (en) | 1995-07-24 |
Family
ID=66826635
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019930026603A KR950020464A (en) | 1993-12-06 | 1993-12-06 | Pickup device |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR950020464A (en) |
-
1993
- 1993-12-06 KR KR1019930026603A patent/KR950020464A/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 | ||
WITB | Written withdrawal of application |