KR970050386A - All-in-one optical pick-up device - Google Patents
All-in-one optical pick-up device Download PDFInfo
- Publication number
- KR970050386A KR970050386A KR1019950067969A KR19950067969A KR970050386A KR 970050386 A KR970050386 A KR 970050386A KR 1019950067969 A KR1019950067969 A KR 1019950067969A KR 19950067969 A KR19950067969 A KR 19950067969A KR 970050386 A KR970050386 A KR 970050386A
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- KR
- South Korea
- Prior art keywords
- light beam
- optical
- prism
- laser
- silicon substrate
- Prior art date
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Abstract
본 발명은 광학 데이타기록 매체에 신호를 기록하고, 그 기록된 정보를 전기신호로 재생시키는 광 픽-업장치에 관한 것으로서, 특히 다수의 광학소자를 일체로 집적형성하여 조립 및 조정의 용이성과 경박단소화에 기여할 수 있도록 하는 일체형 광 픽-업장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical pick-up apparatus for recording a signal on an optical data recording medium and reproducing the recorded information as an electrical signal. In particular, the optical pick-up apparatus is integrated and formed in a plurality of optical elements to facilitate assembly and adjustment. An integrated optical pick-up device for contributing to shortening.
이를 위하여 레이저빔을 대물렌즈로서 빔을 집광하여 디스크상에 신호를 기록하고, 그 기록된 정보를 전기신호를 재생시키는 광 픽-업장치에 있어서, 다수의 광학소자가 안치되는 실리콘기판, 소정의 파장으로 레이저빔을 발생하는 레이저 다이오드, 상기 실리콘기판 일측 상부에 집적 형성되어 상기 레이저 다이오드가 안치되며 방열기능을 갖는 지지체, 상기, 지지체 내부 소정위치에 일체로 집적 형성되어 디스크의 광정보를 검출하는 광검출기, 상기 실리콘기판의 타측 상부에 형성되어 상기 레이저 다이오드로부터 방출되는 빔을 투과하는 프리즘, 상기 프리즘의 중앙부에 대각선방향으로 형성되어 레이저 빔을 반사, 투과시키고 디스크의 광정보 포커스에러 검출을 위해 비점수차를 발생시키는 반사형 편광빔스플리트, 상기 프리즘의 상부에 형성되어 레이저빔을 쓰리빔으로 분리하여 트랙킹에러를 발생시키는 회절격자, 상기 회절격자와 대물렌즈 사이에 설치되어 입사되는 빔의 상광선은 이상광선으로, 이상 광선 (S파)은 상광선(P파)으로 전환시키는 파장변환부로 이루어진 것이다.To this end, an optical pick-up apparatus for condensing a beam using a laser beam as an objective lens to record a signal on a disk and reproducing the recorded information with an electric signal, comprising: a silicon substrate on which a plurality of optical elements are placed; A laser diode for generating a laser beam at a wavelength, the support is formed integrally on the upper side of the silicon substrate, the laser diode is placed, the support having a heat dissipation function, integrally formed at a predetermined position inside the support to detect the optical information of the disk A photo detector, a prism formed on the other side of the silicon substrate and transmitting a beam emitted from the laser diode, and formed in a diagonal direction at a center portion of the prism to reflect and transmit a laser beam and to detect an optical information focus error of a disk. Reflective polarizing beam splitting to generate astigmatism, mold on top of the prism And a diffraction grating that separates the laser beam into three beams and generates a tracking error, and an ordinary light beam of the beam incident and installed between the diffraction grating and the objective lens is an abnormal light beam, and the abnormal light beam S is an ordinary light beam It consists of a wavelength conversion unit to convert to.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.
제2도는 본 발명에 일체형 광 픽-업장치의 구성도,2 is a block diagram of an integrated optical pick-up device according to the present invention;
제3도는 본 발명에 따른 반사형 편광빔스플리트의 확대단면도,3 is an enlarged cross-sectional view of a reflective polarizing beam split according to the present invention;
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950067969A KR970050386A (en) | 1995-12-30 | 1995-12-30 | All-in-one optical pick-up device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950067969A KR970050386A (en) | 1995-12-30 | 1995-12-30 | All-in-one optical pick-up device |
Publications (1)
Publication Number | Publication Date |
---|---|
KR970050386A true KR970050386A (en) | 1997-07-29 |
Family
ID=66638459
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950067969A KR970050386A (en) | 1995-12-30 | 1995-12-30 | All-in-one optical pick-up device |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR970050386A (en) |
-
1995
- 1995-12-30 KR KR1019950067969A patent/KR970050386A/en not_active Application Discontinuation
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Legal Events
Date | Code | Title | Description |
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WITN | Withdrawal due to no request for examination |