KR960042557A - Optical pickup device for compact disc player - Google Patents

Optical pickup device for compact disc player Download PDF

Info

Publication number
KR960042557A
KR960042557A KR1019950014147A KR19950014147A KR960042557A KR 960042557 A KR960042557 A KR 960042557A KR 1019950014147 A KR1019950014147 A KR 1019950014147A KR 19950014147 A KR19950014147 A KR 19950014147A KR 960042557 A KR960042557 A KR 960042557A
Authority
KR
South Korea
Prior art keywords
disk
thickness
optical pickup
disc player
compact disc
Prior art date
Application number
KR1019950014147A
Other languages
Korean (ko)
Inventor
이경언
Original Assignee
배순훈
대우전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019950014147A priority Critical patent/KR960042557A/en
Publication of KR960042557A publication Critical patent/KR960042557A/en

Links

Landscapes

  • Optical Recording Or Reproduction (AREA)

Abstract

본 발명은 콤팩트 디스크 플레이어의 광 픽업장치에 관한 것으로서, 특히 두께가 1,2㎜인 기존의 오디오 디스크와 두께가 0.6㎜인 디지탈 비디오 디스크에 기록된 정보를 선택적으로 읽어들일 수 있도록 하는 콤팩트 디스크 플레이어의 광 픽업장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical pickup device for a compact disc player, and more particularly, to a compact disc player for selectively reading information recorded on existing audio discs having a thickness of 1,2 mm and digital video discs having a thickness of 0.6 mm. It relates to an optical pickup device.

이를 위하여 대물렌즈와 디스크 사이에 0.6㎜ 차의 두께를 보상하기 위한 보정부재를 배치하고, 현재 안치된 디스크의 두께를 센싱한 후 상기 감지된 디스크의 두께에 따라 콘트롤러에서 모터를 제어하여 상기 보정부재를 대물렌즈와 디스크 사이에 삽입 및 이격시키도록 함으로서 보정부재에 의해 0.6㎜의 두께 차를 보상하여 두께가 0.6㎜인 디지탈 비디오 디스크를 기존의 콤팩트 디지탈 오디오 디스크 플레이어의 광 픽업에서 읽어들일 경우 광학적인 수차를 감소시킴에 따라 노이즈가 최대한 억제되도록 함으로서 에러 발생율을 감소시켜 기록된 정보를 정확히 읽을 수 있도록 한 것이다.To this end, a compensation member is disposed between the objective lens and the disk to compensate for a thickness of 0.6 mm, the thickness of the currently placed disk is sensed, and then the controller is controlled by the controller according to the detected thickness of the disk. Is inserted and spaced between the objective lens and the disc to compensate for the 0.6 mm thickness difference by the correction member, so that when a digital video disc with a thickness of 0.6 mm is read from the optical pickup of a conventional compact digital audio disc player, By reducing the aberration, the noise is suppressed as much as possible, thereby reducing the error occurrence rate so that the recorded information can be read accurately.

Description

콤팩트 디스크 플레이어의 광 픽업장치Optical pickup device for compact disc player

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

제2도는 본 발명에 따른 콤팩트 디스크 플레이어의 광 픽업장치의 구성도.2 is a block diagram of an optical pickup device for a compact disc player according to the present invention.

Claims (2)

레이저 다이오드(51)로부터 발생되는 레이저 빔을 집광하여 디스크(55)상에 포커싱시켜 기록된 광 정보를 읽는 대물렌즈(54)를 포함하는 콤팩트 디스크 플레이어의 광 픽업장치에 있어서, 콤팩트 디스크 플레이어의 소정 위치에 설치되어 디스크의 두께를 감지하여 소정의 신호를 출력하는 디스크 감지부(61), 상기 디스크(55)와 대물렌즈(54) 사이에 배치되어 상기 디스크 감지부(61)에 의해 감지된 디스크의 종류에 따라 두께를 보상하는 보정부재(62), 상기 보정부재(62)가 샤프트(63a)에 고정되어 상기 보정부재(62)를 선회전시키는 모터(63), 상기 디스크 감지부(61)의 출력신호에 의해 디스크의 두께를 판정하여 소정의 제어신호를 출력하는 콘트롤러(65), 상기 콘트롤러(65)의 출력신호에 따라 상기 보정부재(62)를 디스크(55)와 대물렌즈(54) 사이에 삽입 및 이격시키기 위해 상기 모터(63)를 정·역회전시키는 드라이브(64)를 포함하여서 된 콤팩트 디스크 플레이어의 광 픽업장치.An optical pickup device for a compact disc player, comprising: an objective lens 54 for concentrating a laser beam generated from the laser diode 51 and focusing on the disc 55 to read recorded optical information. A disk detecting unit 61 installed at a position to detect a thickness of the disk and outputting a predetermined signal, and disposed between the disk 55 and the objective lens 54 and detected by the disk detecting unit 61. Correction member 62 to compensate for the thickness according to the type, the correction member 62 is fixed to the shaft (63a) motor (63) for pre-rotating the correction member 62, the disk detection unit 61 The controller 65 outputs a predetermined control signal by determining the thickness of the disk based on the output signal of the disk, and the correction member 62 moves the disk 55 and the objective lens 54 according to the output signal of the controller 65. Inserted and spaced between The optical pickup apparatus of a compact disc player hayeoseo comprises a drive (64) for forward and reverse rotation of the motor 63 in order to. 제1항에 있어서 상기 보정부재(62)는, 폴리 카보나이트(Poly Carbonate)를 사용한 것을 특징으로 하는 콤팩트 디스크 플레이어의 광 픽업장치The optical pickup apparatus of the compact disc player according to claim 1, wherein the correction member (62) is made of poly carbonite. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950014147A 1995-05-31 1995-05-31 Optical pickup device for compact disc player KR960042557A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950014147A KR960042557A (en) 1995-05-31 1995-05-31 Optical pickup device for compact disc player

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950014147A KR960042557A (en) 1995-05-31 1995-05-31 Optical pickup device for compact disc player

Publications (1)

Publication Number Publication Date
KR960042557A true KR960042557A (en) 1996-12-21

Family

ID=66525570

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950014147A KR960042557A (en) 1995-05-31 1995-05-31 Optical pickup device for compact disc player

Country Status (1)

Country Link
KR (1) KR960042557A (en)

Similar Documents

Publication Publication Date Title
DE69630342D1 (en) Optical recording and playback
KR970060152A (en) Method and apparatus for disc discrimination in optical disc system
US6081491A (en) Optical disk vibration sensing and reproducing device
US7088647B2 (en) Apparatus of controlling tracking for a disk
KR100477501B1 (en) A disk drive apparatus
KR100306211B1 (en) A preponderant-disk detecter of optical-disk reproducing apparatus
KR960042557A (en) Optical pickup device for compact disc player
JP3600123B2 (en) Information recording medium discriminating device
US20040037178A1 (en) Method of detecting imbalanced disk in disk drive apparatus and disk drive apparatus
JP3885807B2 (en) Optical disk device
JP2001331949A (en) Optical disk device
KR100244773B1 (en) Method for controlling offset level of tracking error in optical disc player
JPH05217275A (en) Disk sensing device
JPS63244321A (en) Automatic focus draw-in adjusting device
KR970002925A (en) Recording Density Discrimination Device for Optical Discs
KR970011815B1 (en) Control apparatus of optical pick-up reproducing one side in both side laser disc player
KR970002926A (en) Focus Servo Movement Control
KR0176607B1 (en) Driving method of cd-rom drive
KR0154953B1 (en) Focus servo apparatus for use in an optical disc playback system
KR100223214B1 (en) Method for discriminating kind of optical disk in optical disk player
KR970017274A (en) A method for correcting aberration due to disc tilt and optical pickup for recording and reproduction using the same
KR20000050358A (en) An apparatus for controlling the reproducing speed of an optical disc
KR950027712A (en) Optical pickup servo method and device
JPH05266489A (en) Information processor
KR19980065487A (en) Optical disc player for detecting and focusing disc tilt

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application