KR880009344A - Attachment method of photodetector for laser pickup and its device - Google Patents

Attachment method of photodetector for laser pickup and its device Download PDF

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Publication number
KR880009344A
KR880009344A KR870000790A KR870000790A KR880009344A KR 880009344 A KR880009344 A KR 880009344A KR 870000790 A KR870000790 A KR 870000790A KR 870000790 A KR870000790 A KR 870000790A KR 880009344 A KR880009344 A KR 880009344A
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KR
South Korea
Prior art keywords
axis
motor
light
laser
receiving amount
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KR870000790A
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Korean (ko)
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KR900006953B1 (en
Inventor
신승열
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이동복
삼성정밀공업 주식회사
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Priority to KR1019870000790A priority Critical patent/KR900006953B1/en
Publication of KR880009344A publication Critical patent/KR880009344A/en
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Publication of KR900006953B1 publication Critical patent/KR900006953B1/en

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    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08Disposition or mounting of heads or light sources relatively to record carriers

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  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Optical Head (AREA)

Abstract

내용 없음.No content.

Description

레이저 픽업용 광검출기 부착방법과 그 장치Attachment method of photodetector for laser pickup and its device

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

제1도는 이 발명의 광 디스크 구동장치의 한 실시예의 구성도.1 is a configuration diagram of one embodiment of the optical disk drive of the present invention.

제2도는 제1도의 실시예를 다시 상세하게 나타내는 블록도.2 is a block diagram showing again the embodiment of FIG. 1 in detail.

제3도는 제2도의 요부의 상세한 것을 나타내는 블록도.3 is a block diagram showing details of main parts of FIG.

Claims (2)

레이저 픽업용 광검출기의 부착방법에 있어서, 광분할검출기가 취부된 기판을 레이저 픽업의 상부에 닿도록 Z축의 모터를 구동하여 상기 기판이 레이저 픽업의 상부에 닿았는가를 판단하는 제1단계와, 상기 제1단계의 판단이 레이저 픽업의 상부에 닿지 않았다고 판단시 Z축의 모터를 계속적으로, 하강시키며 닿았다고 판단시 광분할검출기의 각 분할면 A,B,C,D의 광수광량이 (A+B)-(C+D)=0인가를 검색하는 제2단계와, 제2단계의 판단이 0이 아니라고 판단시 광분할검출기의 각 분할면 A,B,C,D의 광수광량이 (A+B)-(C+D)>0인가를 검색하여 판단값이 0보다 클때 X측의 모터를 (-)방향으로 한스텝씩 구동하며, 0보다 적을때 X축의 모터를 (+)방향으로 한스텝씩 구동하여 광분할 검출기의 수광량이(A+B)-(C+D)=0인가를 검색하여 0일때 광분할검출기의 수광량이(A+B)-(B+C)=0인가를 판단하는 제3단계와, 제3단계의 판단이 0아닐때 광분할검출기의 광분할면 A,B,C,D의 수광량이 (A+D)-(B+C)>O인가를 검색하여 분할면 (A+D)의 수광량이 분할면 (B+C)의 수광량 보다 클때 Y축 모터를 (+)방향으로 한스텝씩 구동하며, 분할면(A+D)의 수관량이 분할면 (B+C)의 수광량보다 적을 때 Y축 모터를 (+)방향으로 한스텝씩 구동하여 광분할검출기의 수광량이 (A+D)-(B+C)=0인가를 검색하여 수광량이 0일땔 광분할검출기가 취부된 기판을 레이저 픽업면에 부착하여 Z축의 모터를 상승구동하는 제4단계로 하는 것을 특징으로 하는 레이저 픽업용 광분할 검출기의 부착방법.A method of attaching a photodetector for laser pickup, comprising: a first step of determining whether the substrate has touched the upper portion of the laser pickup by driving a Z-axis motor so as to touch the upper portion of the laser pickup onto the substrate on which the optical splitter is mounted; When the determination of the first step does not reach the upper portion of the laser pickup, the Z-axis motor is continuously lowered and the determination is made, and when it is determined that the light reception amount of each of the divided planes A, B, C, and D of the light splitting detector is (A + B)-(C + D) = 0, and the light receiving amount of each dividing plane A, B, C, D of the light splitting detector when the judgment of the second step is not 0 (A) When + B)-(C + D)> 0 is searched, if the judgment value is greater than 0, drive the motor on the X side by one step in the (-) direction, and when it is less than 0, the motor on the X axis in the (+) direction Drive step by step to find out whether the light-receiving amount of light splitting detector is (A + B)-(C + D) = 0, and if the light-receiving amount of light splitting detector is 0, is it (A + B)-(B + C) = 0? In the third step of judging and when the judgment of the third step is not 0, the light-receiving amount of A, B, C, D of the light splitting detector is searched for (A + D)-(B + C)> O. When the light receiving amount of the dividing surface A + D is larger than the light receiving amount of the dividing surface B + C, the Y-axis motor is driven by one step in the (+) direction, and the water volume of the dividing surface (A + D) is the dividing surface (B + When the light receiving amount is less than C), Y-axis motor is driven by one step in the (+) direction to search whether (A + D)-(B + C) = 0. And attaching the attached substrate to the laser pick-up surface to drive up the Z-axis motor. 레이저 픽업용 광분할검출기의 부착장치에 있어서, 광분할검출기(100)의 각분할면(A-D)에서 레이저 빔 수광량에 대한 전류량의 변화를 입력하여 각분할변 (A-D)에서 수광되는 광량을 전압으로 변화출력하는 제1-4전류전압 변환기(10a-10d)와, 상기 1-4전류전압 변환기(10a-10d)에서 출력하는 전압을 디지탈신호로 변환하여 제어데이터로 출력하는 아나로그/디지탈변화기(20a)와, 내장된 소정의 프로그램에 의해 입력되는 제어데이터를 분석하여 이에 대하는 제1,2,3스텝데이터를 출력하는 중앙 처리장치(30a)와, 상기 중앙처리장치(30a)에서 출력하는 제1,2,3스텝 데이터를 입력하여 드라이브하는 제1-3모터드라이브(40a-40c)로 구성된 제어회로와, 베이스(1)의 일측상면에 Y축 고정판(2)을 형성하고 Y측 고정판(2) 위에는 X축 고정판(5)이 부착되어진 Y축 스테이지(3)를 스라이드 결??하며 상기 제1모터드라이브(40a)의 출력에 의하여 Y축으로 이동될 수 있게 Y축 스테이지(3)에 나사결합된 Y축 조정모터(4)와, 상기 X측 고정판(5) 상측에는 X측 스테이지(6)를 슬라이드 결합하는 동시에 상기 제2모터드라이브(40b)의 출력에 의해 X측으로 구동될수 있게 X축 스테이지에 나사 결합된 X축 조정모터(7)와, 상기 X축 스테이지(6)의 상면에 Z측 고정판(8′,8)을 부착하며 Z축 고정판(8)에 Z축 스테이지(9)를 슬라이드 결합하고 상기 제3모터 드라이브(40c) 출력에 의해 Z측으로 이동할 수 있게 Z축 스테이지(9)에 나사결합된 Z측 조정모터(10)와, 베이스(1)일측상면에 부착되어진 레이저 픽업 장착대(13)의 상측에 취부되어 레이저 빔 방사홀(19)에서 소정량의 레이저 빔을 발사하는 레이저 픽업(14)과, 레이저 픽업(14)의 요부에 취부되어 레이저 빔위 촛점을 결상시키기 위한 빔을 형성하기 위한 대물렌즈 및 표준밀러(15)와, 베이스(1)의 상부에 취부된 레이저 픽업 장칙대(14)의 수평방향에 취부되어 상기 대물렌즈 및 표준렌즈(15)를 홀딩고정시킬수 있는 나브를 갖고 있는 대물렌즈 및 표준렌즈 홀드(18)로서 구성함을 특정으로 하는 장치.A device for attaching a light splitting detector for laser pickup, comprising inputting a change in the amount of current with respect to the laser beam light receiving amount on the angular split surface AD of the light splitting detector 100 to convert the amount of light received at the angular split side AD into a voltage. 1-4 current voltage converter 10a-10d for outputting the change and an analog / digital converter for converting the voltage output from the 1-4 current voltage converters 10a-10d into digital signals and outputting the control data ( 20a), a central processing unit 30a for analyzing the control data inputted by a predetermined program embedded therein, and outputting first, second, and third step data corresponding thereto, and an outputting unit for the central processing unit 30a. The Y-axis fixed plate 2 is formed on the upper surface of one side of the base 1 and the control circuit composed of the 1-3 motor drive 40a-40c for inputting and driving the 1,2- and 3-step data. 2) Sly the Y-axis stage 3 to which the X-axis fixing plate 5 is attached. Y-axis adjusting motor (4) screwed to the Y-axis stage (3) to be moved to the Y-axis by the output of the first motor drive (40a) and the X-side fixing plate (5) An X-axis adjusting motor 7 screwed to the X-axis stage so as to slide-couple the X-side stage 6 and be driven to the X-side by the output of the second motor drive 40b, and the X-axis stage Z-side fixing plates 8 ', 8 are attached to the upper surface of 6, and Z-axis stage 9 is slide-bonded to Z-axis fixing plate 8 and moved to Z side by the output of the third motor drive 40c. The Z-side adjustment motor 10 screwed to the Z-axis stage 9 and the laser pickup mount 13 attached to one side of the base 1 and mounted on the upper surface of the laser beam radiation hole 19. It is attached to the main part of the laser pickup 14 and the laser pickup 14 which emits a certain quantity of laser beams, and focuses on a laser beam. The objective lens and the standard lens 15 for forming a beam to be imaged, and the horizontal direction of the laser pickup mounting bracket 14 mounted on the base 1 are mounted to the objective lens and the standard lens 15. Apparatus characterized by being configured as an objective lens and a standard lens hold (18) having a holding nab. ※ 참고사항 : 최초출된 내용에 의하여 공개하는 것임.※ Note: It is to be disclosed based on the original contents.
KR1019870000790A 1987-01-31 1987-01-31 Attaching method and apparatus for optical detector KR900006953B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019870000790A KR900006953B1 (en) 1987-01-31 1987-01-31 Attaching method and apparatus for optical detector

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Application Number Priority Date Filing Date Title
KR1019870000790A KR900006953B1 (en) 1987-01-31 1987-01-31 Attaching method and apparatus for optical detector

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KR880009344A true KR880009344A (en) 1988-09-14
KR900006953B1 KR900006953B1 (en) 1990-09-25

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030065883A (en) * 2002-02-01 2003-08-09 삼성전기주식회사 Optical pick-up device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030065883A (en) * 2002-02-01 2003-08-09 삼성전기주식회사 Optical pick-up device

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Publication number Publication date
KR900006953B1 (en) 1990-09-25

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