KR930014347A - Optical pickup position detection device of optical disc drive - Google Patents

Optical pickup position detection device of optical disc drive Download PDF

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Publication number
KR930014347A
KR930014347A KR1019910025957A KR910025957A KR930014347A KR 930014347 A KR930014347 A KR 930014347A KR 1019910025957 A KR1019910025957 A KR 1019910025957A KR 910025957 A KR910025957 A KR 910025957A KR 930014347 A KR930014347 A KR 930014347A
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KR
South Korea
Prior art keywords
optical pickup
light source
optical
light
scale
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KR1019910025957A
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Korean (ko)
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KR100288439B1 (en
Inventor
박찬규
이철우
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정용문
삼성전자 주식회사
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Priority to KR1019910025957A priority Critical patent/KR100288439B1/en
Publication of KR930014347A publication Critical patent/KR930014347A/en
Application granted granted Critical
Publication of KR100288439B1 publication Critical patent/KR100288439B1/en

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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1381—Non-lens elements for altering the properties of the beam, e.g. knife edges, slits, filters or stops

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)

Abstract

본 발명은 광디스크 드라이브의 광픽업 위치 검출장치에 관한 것이다.The present invention relates to an optical pickup position detection apparatus of an optical disc drive.

본 발명은 광원과, 이 광원으로부터 발생되는 광을 디스크에 접속시키는 대물렌즈를 구비하는 광픽업과, 상기 광픽업의 위치를 검출하기 위한 선형스케일을 구비하여된 광디스크 드라이브의 광픽업 위치 검출장치에 있어서, 상기 선형스케일의 광원이 상기 광픽업의 광원으로부터 발생되어 상기 광픽업의 광원과 대물렌즈의 광경로상에 설치된 빔스프리터에 의해 분리되는 광중의 일부광인 점에 그 특징이 있다.The present invention provides an optical pickup position detecting apparatus for an optical disk drive comprising an optical pickup having a light source, an objective lens for connecting the light generated from the light source to the disk, and a linear scale for detecting the position of the optical pickup. The linear scale light source is characterized in that it is a part of light generated by the light source of the optical pickup and separated by a beam splitter provided on the light path of the optical pickup and the objective lens.

따라서 제품의 원가를 낮출수 있고 조립이 용이함과 동시에 조립정밀도를 높일 수 있게 된다.Therefore, the cost of the product can be lowered, the assembly can be easier and the assembly precision can be increased.

Description

광디스크 드라이브의 광픽업 위치 검출장치Optical pickup position detection device of optical disc drive

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

제2도는 제1도에 도시된 선형스케일을 발췌하여 도시한 사시도.FIG. 2 is a perspective view showing the linear scale shown in FIG.

제3도는 본 발명에 따른 광디스크 드라이브의 광픽업 위치 검출장치를 보인 평면도.3 is a plan view showing an optical pickup position detection apparatus of the optical disk drive according to the present invention.

제4도는 본 발명의 다른 실시예를 보인 평면도.4 is a plan view showing another embodiment of the present invention.

Claims (4)

광원과, 이광원으로부터 발생되는 광을 디스크에 접속시키는 대물렌즈를 구비하는 광픽업과, 상기 광픽업의 위치를 검출하기 위한 선형스케일을 구비하여된 광디스크 드라이브의 광픽업 위치 검출장치에 있어서, 상기 선형스케일(4)의 광원이, 상기 광픽업(1)의 광원(5)으로 부터 발생되어 상기 광픽업(1)의 광원(5)과 대물렌즈(7) 사이의 광경로상에 설치된 빔스프리터(8)에 의해 분리되는 광중의 일부광인 것을 특징으로 하는 광디스크 드라이브의 광픽업 위치 검출장치.10. An optical pickup position detecting apparatus for an optical disc drive, comprising: a light pickup having a light source, an objective lens for connecting light generated from a two-light source to a disc, and a linear scale for detecting a position of the optical pickup; The light source of the scale 4 is generated from the light source 5 of the optical pickup 1 and is provided on the optical path between the light source 5 and the objective lens 7 of the optical pickup 1 8. An optical pickup position detection apparatus for an optical disc drive, characterized in that it is part of light separated by 8). 제1항에 있어서, 상기 일부광이 한쌍의 반사미러(15)(15')에 의해 그 경로가 편향되어 상기 선형스케일(4)로 도달되도록 된것을 특징으로 하는 광디스크 드라이브의 광픽업 위치 검출장치.2. The apparatus of claim 1, wherein the partial light is deflected by a pair of reflective mirrors (15, 15 ') to reach the linear scale (4). . 제1항에 있어서, 상기 광픽업(1)이 대물렌즈(7)를 구비하는 가동부(3)와, 광원(5) 및 빔스프리터(8)를 구비하는 고정부(2)로 분리된 분리형으로 형성되고, 상기 선형스케일(4)의 고정스케일(12)과 디텍터(11)가 상기 빔스프리터(8)의 일측면과 소정간격을 둔체 마주 보도록 상기 고정부(2)에 설치되며, 상기 선형스케일(4)의 이동스케일(13)이 상기 고정스케일(12)과 빔스프리터(8) 사이에서 선형 이동될 수 있도록 상기 가동부(3)에 연장부재(14)에 의해 설치되어, 상기 광픽업(1)의 광원(5)으로부터 발생된 일부광이 상기 선형스케일(4)로 도달되도록 된것을 특징으로 하는 광디스크 드라이브의 광픽업 위치 검출장치.The optical pickup (1) according to claim 1, wherein the optical pickup (1) is divided into a movable part (3) having an objective lens (7) and a fixing part (2) having a light source (5) and a beam splitter (8). And a fixed scale 12 and a detector 11 of the linear scale 4 are installed on the fixed part 2 so as to face a side of the beam splitter 8 at a predetermined interval, and the linear scale The movable scale 13 of (4) is installed by the extension member 14 on the movable portion 3 so that the movable scale 13 can be linearly moved between the fixed scale 12 and the beam splitter 8, and the optical pickup 1 And an optical pickup position detecting device of the optical disc drive, wherein the partial light generated from the light source (5) reaches the linear scale (4). 제3항에 있어서, 위치검출에 사용되는 상기 선형스케일(4)의 디텍터(11)가 상기 광원(5)의 광검출량을 감지하는 기능을 겸하도록된 것을 특징으로 하는 광디스크 드라이브의 광픽업 위치 검출장치.4. The optical pickup position detection of an optical disc drive according to claim 3, wherein the detector 11 of the linear scale 4 used for position detection has a function of detecting the light detection amount of the light source 5. Device. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910025957A 1991-12-31 1991-12-31 Device for detecting optical pickup position of optical disc drive KR100288439B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910025957A KR100288439B1 (en) 1991-12-31 1991-12-31 Device for detecting optical pickup position of optical disc drive

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910025957A KR100288439B1 (en) 1991-12-31 1991-12-31 Device for detecting optical pickup position of optical disc drive

Publications (2)

Publication Number Publication Date
KR930014347A true KR930014347A (en) 1993-07-23
KR100288439B1 KR100288439B1 (en) 2001-05-02

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KR1019910025957A KR100288439B1 (en) 1991-12-31 1991-12-31 Device for detecting optical pickup position of optical disc drive

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Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62192031A (en) * 1986-02-19 1987-08-22 Olympus Optical Co Ltd Optical recording and reproducing device

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