KR950006738A - Optical pickup device of mini disc player - Google Patents

Optical pickup device of mini disc player Download PDF

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Publication number
KR950006738A
KR950006738A KR1019930016103A KR930016103A KR950006738A KR 950006738 A KR950006738 A KR 950006738A KR 1019930016103 A KR1019930016103 A KR 1019930016103A KR 930016103 A KR930016103 A KR 930016103A KR 950006738 A KR950006738 A KR 950006738A
Authority
KR
South Korea
Prior art keywords
optical pickup
total reflection
pickup device
disc player
beam splitter
Prior art date
Application number
KR1019930016103A
Other languages
Korean (ko)
Other versions
KR950007294B1 (en
Inventor
한만준
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.)
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Publication date
Application filed by 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019930016103A priority Critical patent/KR950007294B1/en
Publication of KR950006738A publication Critical patent/KR950006738A/en
Application granted granted Critical
Publication of KR950007294B1 publication Critical patent/KR950007294B1/en

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Classifications

    • 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
    • G11B7/1395—Beam splitters or combiners

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)

Abstract

본 발명은 미니디스크플레이어의 광픽업장치에 관한 것으로, 미니디스크플레이어의 광픽업장치에서 회절격자를 배제하고, 빔스플리터상면의 표면에 다수개의 전반사미러를 일정간격으로 코팅하고, 상기 각 전반사미러 사이에는 레이저빔이 투과되는 슬릿을 형성하여 빔스플리터가 회절격자 역할을 함께 수행할 수 있도록 하므로써 제조공정을 단순화 시킬 수 있도록 하고, 제품의 소형화를 달성할 수 있도록 한 것이다.The present invention relates to an optical pickup device of a minidisc player, which excludes a diffraction grating in the optical pickup apparatus of a minidisc player, and coats a plurality of total reflection mirrors on a surface of the upper surface of the beam splitter at regular intervals, and between each total reflection mirror. In order to form a slit through which the laser beam is transmitted, the beam splitter can perform a role of a diffraction grating, thereby simplifying the manufacturing process and achieving miniaturization of a product.

(제2도)(Figure 2)

Description

미니디스크플레이어의 광픽업장치Optical pickup device of mini disc player

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 본 발명에 따른 미니디스크플레이어의 광픽업장치장치의 광학계를 나타내는 개략구성도,2 is a schematic configuration diagram showing an optical system of an optical pickup apparatus of a mini disc player according to the present invention;

제3도는 본 발명의 광픽업장치장치에 적용되는 빔스플리터(Beam Splitter)의 확대사시도.3 is an enlarged perspective view of a beam splitter applied to the optical pickup apparatus of the present invention.

Claims (2)

레이저다이오드(30)로부터 출력된 단일의 레이저빔을 다수개로 분리하는 회절격자를 배제하고, 레이저빔의 입사광과 반사광을 분리하는 빔스플리터(32)의 상면의 표면에 다수개의 전반사미러(34)를 횡방향으로 코팅하고, 상기 각 전반사미러(34) 사이에는 레이저빔이 투과되는 슬릿(36)을 형성하여 된 것을 특징으로 하는 미니디스크플레이어의 광픽업장치.A plurality of total reflection mirrors 34 are disposed on the surface of the upper surface of the beam splitter 32 that separates the incident light and the reflected light of the laser beam, excluding a diffraction grating that separates a single laser beam output from the laser diode 30 into a plurality. Coating in the transverse direction, the optical pickup device of the mini-disc player, characterized in that the slits 36 through which the laser beam is transmitted between each total reflection mirror (34). 제1항에 있어서, 빔스플리터(32)는 그 아랫면에 다수개의 전반사미러(34)를 횡방향으로 코팅하고, 상기 전반사미러(34)사이에는 슬릿(36)을 형성하여 된 것을 특징으로 하는 미니디스크플레이어의 광픽업장치.The miniature beam according to claim 1, wherein the beam splitter 32 is formed by coating a plurality of total reflection mirrors 34 on a lower surface thereof in a lateral direction, and forming slits 36 between the total reflection mirrors 34. Optical pickup device of disc player. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930016103A 1993-08-19 1993-08-19 Optical pick up apparatus of mini disk player KR950007294B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930016103A KR950007294B1 (en) 1993-08-19 1993-08-19 Optical pick up apparatus of mini disk player

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930016103A KR950007294B1 (en) 1993-08-19 1993-08-19 Optical pick up apparatus of mini disk player

Publications (2)

Publication Number Publication Date
KR950006738A true KR950006738A (en) 1995-03-21
KR950007294B1 KR950007294B1 (en) 1995-07-07

Family

ID=19361575

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930016103A KR950007294B1 (en) 1993-08-19 1993-08-19 Optical pick up apparatus of mini disk player

Country Status (1)

Country Link
KR (1) KR950007294B1 (en)

Also Published As

Publication number Publication date
KR950007294B1 (en) 1995-07-07

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