KR970050390A

KR970050390A - All-in-one optical pick-up device

Info

Publication number: KR970050390A
Application number: KR1019950067973A
Authority: KR
Inventors: 최양오
Original assignee: 배순훈; 대우전자 주식회사
Priority date: 1995-12-30
Filing date: 1995-12-30
Publication date: 1997-07-29

Abstract

본 발명은 광학 데이타기록 매체에 신호를 기록하고, 그 기록돠ㅣㄴ 정보를 전기신호로 재생시키는 광 픽-업장치에 괸한 것으로서, 특히 다수의 광학소자를 일체로 집적형성하여 조립 및 조정의 용이성과 경박단소화에 기여할 수 있도록 하는 일체형 광 픽-업장치에 관한 것이다.The present invention is directed to an optical pick-up apparatus for recording a signal on an optical data recording medium and reproducing the recorded information into an electrical signal. In particular, the present invention facilitates assembly and adjustment by integrally forming a plurality of optical elements. And an integrated optical pick-up device capable of contributing to light and thin and short.

이를 위하여 레이저빔을 집광하여 디스크상에 신호를 기록하고, 그 기록된 정보를 전기신호로 재생시키는 광 픽-업장치에 있어서; 다수의 광학소자가 안치되는 실리콘시판, 상기 실리콘기판의 일측 내부에 형성되어 소정파장의 레이저 빔을 발생하는 레이저 다이오드, 상기 레이저 다이오드가 위치하는 실리콘기판의 일측 상부에 형성되어 레이저빔을 투과하는 프리즘, 상기 프리즘의 중앙부에 대각선 방향으로 형성되어 입사빔을 소정의 비율로 투과 및 반사하는 빔스플리트, 상기 실리콘기판의 타측 상부에 형성된 지지체, 상기 지지체 내부 소정위치에 형성되어 디스크의 광정보를 검출하는 광검출기, 상기 실리콘기판의 상부에 형성되어 상기 다수의 광학소자를 밀페시키는 프라스틱 케이스, 상기 플라스틱 메이스의 소정부분에 형성되어 디스크에 빔 포커스를 형성하고 포커스에러 검출을 위해 비점수차를 발생시키는 프레즈넬렌즈로 이루어진 것이다.An optical pick-up apparatus for condensing a laser beam to record a signal on a disk and reproducing the recorded information as an electric signal for this purpose; A silicon market in which a plurality of optical elements are placed, a laser diode formed inside one side of the silicon substrate to generate a laser beam of a predetermined wavelength, and a prism formed on one side of the silicon substrate on which the laser diode is located to transmit a laser beam A beam split formed at a center portion of the prism in a diagonal direction to transmit and reflect an incident beam at a predetermined ratio, a support formed on the other side of the silicon substrate, and formed at a predetermined position inside the support to detect optical information of the disk; A photodetector, a plastic case formed on the silicon substrate to seal the plurality of optical elements, and a Fresnel formed on a predetermined portion of the plastic mace to form a beam focus on the disk and to generate astigmatism for focus error detection. It consists of a lens.

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 따른 일체형 광 픽-업장치의 구성도.2 is a block diagram of an integrated optical pick-up device according to the present invention.

Claims

1. An optical pick-up apparatus for condensing a laser beam to record a signal on a disc and reproducing the recorded information as an electrical signal, comprising: a silicon substrate 61 and a silicon substrate 61 on which a plurality of optical elements are placed; A laser diode 64 formed inside one side of the laser beam to generate a laser beam having a predetermined wavelength, and a prism 66 formed on one side of the silicon substrate 61 on which the laser die diode 64 is located to transmit the laser beam. A beam split 67 formed at a center portion of the fryer 66 in a diagonal direction to transmit and reflect an incident beam at a ratio of small and small, a support 62 formed on the other side of the silicon substrate 61, and a support; (62) a photodetector (63) formed at a predetermined position inside to detect optical information of the disk, a plastic case (68) formed on the silicon substrate (61) to seal the plurality of optical elements, and the plastic case (68) Consisting of a Fresnel lens (69) is formed in a predetermined portion to form a coarse beam to the disk and generates an astigmatic focus error detection for one-piece optical pick-up device.

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