KR970029390A

KR970029390A - All-in-one optical pick-up device

Info

Publication number: KR970029390A
Application number: KR1019950043814A
Authority: KR
Inventors: 최양오
Original assignee: 배순훈; 대우전자 주식회사
Priority date: 1995-11-27
Filing date: 1995-11-27
Publication date: 1997-06-26

Abstract

본 발명은 광학 데이타기록 매체에 신호를 기록하고, 그 기록된 정보를 전기신호로 재생시키는 광 픽-업장치에 관한 것으로서, 특히 다수의 광학 소자를 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 electric signal. In particular, the optical pick-up apparatus is integrated and formed by integrating a plurality of optical elements. An integrated optical pick-up device for contributing to shortening.

이를 위하여 광학 데이타기록 매체에 신호를 기록하고, 그 기록된 정보를 전기신호로 재생시키는 광 픽-업장치에 있어서, 다수의 광학소자가 안치되는 실리콘기판, 소정의 파장으로 레이저 빔을 발생하는 레이저 다이오드, 상기 실리콘기판 일측 상부에 집적 형성되어 상기 레이저 다이오드가 안치되며 방열기능을 갖는 지지체, 상기 실리콘기판의 타측 상부에 집적 형성되어 상기 레이저 다이오드로부터 방출되는 빔을 일정한 비의 반사광과 투과광으로 분리하는 빔 스플리트. 상기 지지체 양측 소정간격을 두고 배치되며 상기 실리콘기판 상부에 집적 형성되어 상기 빔 스플리트를 통해 되돌아오는 디스크의 광정보를 검출하는 제1 및 제2광검출기, 상기 빔 스플리트의 상부에 일체로 형성되어 레이저 다이오드의 방출 빔과 디스크 광정보를 회절시켜 포커스에러를 발생시키는 홀로그램 격자로 구성된 것이다.To this end, in an optical pick-up apparatus for recording a signal on an optical data recording medium and reproducing the recorded information as an electrical signal, a silicon substrate on which a plurality of optical elements are placed, a laser generating a laser beam at a predetermined wavelength A diode, formed integrally on one side of the silicon substrate, and having the laser diode placed therein, having a heat dissipation function, integrally formed on the other side of the silicon substrate, separating the beam emitted from the laser diode into reflected light and transmitted light of a constant ratio. Beam split. First and second photodetectors disposed at predetermined intervals on both sides of the support and integrally formed on the silicon substrate to detect optical information of a disk returned through the beam split, and integrally formed on the beam split. It is composed of a hologram grating that diffracts the emission beam and disk optical information of the laser diode to generate a focus error.

Description

All-in-one optical pick-up device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제2도는 본 발명에 일제형 광 픽-업장치의 구성도,2 is a block diagram of an integrated optical pick-up device of the present invention,

제3도는 본 발명에 따른 일체형 광 픽-업장치의 평면도.3 is a plan view of the integrated optical pick-up device according to the present invention.

Claims

An optical pick-up apparatus for recording a signal on an optical data recording medium and reproducing the recorded information as an electrical signal, comprising: a silicon substrate 61 on which a plurality of optical elements are placed, for generating a laser beam at a predetermined wavelength; Laser diode 63. The silicon diode 61 is integrally formed on one side of the silicon substrate 61 so that the laser diode 63 is placed therein and has a heat dissipation support 62, and the silicon substrate 61 is integrally formed on the other side of the silicon substrate 61 from the laser diode 63. A beam split 64 that separates the emitted beam into reflected light and transmitted light at a constant ratio, and is disposed at predetermined intervals on both sides of the support 62 and is integrally formed on the silicon substrate 61 to form the beam split 64. The first and second photodetectors 66a and 66b for detecting the optical information of the disk returning through the disk, and are integrally formed on the beam split 64 and the emission beam of the laser diode 63 and the disk. An integrated optical pick-up device composed of a hologram grating 65 diffracting optical information to generate a focus error.

※ Note: The disclosure is based on the initial application.