KR970012352A - All-in-one Optical Pickup Module - Google Patents

All-in-one Optical Pickup Module Download PDF

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Publication number
KR970012352A
KR970012352A KR1019950025895A KR19950025895A KR970012352A KR 970012352 A KR970012352 A KR 970012352A KR 1019950025895 A KR1019950025895 A KR 1019950025895A KR 19950025895 A KR19950025895 A KR 19950025895A KR 970012352 A KR970012352 A KR 970012352A
Authority
KR
South Korea
Prior art keywords
optical pickup
pickup module
prism block
objective lens
reflective
Prior art date
Application number
KR1019950025895A
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Korean (ko)
Other versions
KR0141757B1 (en
Inventor
최호영
Original Assignee
구자홍
Lg 전자 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 구자홍, Lg 전자 주식회사 filed Critical 구자홍
Priority to KR1019950025895A priority Critical patent/KR0141757B1/en
Publication of KR970012352A publication Critical patent/KR970012352A/en
Application granted granted Critical
Publication of KR0141757B1 publication Critical patent/KR0141757B1/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
    • G11B7/1372—Lenses
    • G11B7/1374—Objective lenses
    • 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
    • G11B7/1353—Diffractive elements, e.g. holograms or gratings
    • 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
    • G11B7/1359—Single prisms

Abstract

본 발명은 일체형 광픽업 모듈에 관한 것으로, 광원인 레이저 다이오드(11)와 디스크(D) 상의 피트정보를 검출하는 포토다이오드(12)가 구비된 발광/수광부(10)와, 상기 레이저 다이오드(11)에서 발광된 빔(B)을 전달하는 도파부재(20)와, 하측 경사면(31)에 상기 도파부재(20)를 통과한 빔(B)을 반사하는 반사면(33)이 구비되고 상면 일측에 상기 발광/수광부(10)가 일체로 구비되며 상기 도파부재(20)가 상기 반사면(33)이 구비된 경사면(32)과 대향하는 경사면(31)에 구비된 프리즘블록(30)과, 상기 반사면(33)에서 반사됨 빔(B)을 디스크(D)상에 집광시키도록 프리즘블록(30)의 상면 일측에 일체로 설치된 대물렌즈부(40)로 구성된다. 이와 같은 본 발명에 의하면 광픽업 모듈이 사용되는 제품의 경박 소형화를 달성할 수 있고, 광픽업 모듈의 일체화가 이루어지므로 구조의 단순화 및 조립성의 향상이 이루어지고, 광픽업 모듈이 일체화되어 하나의 가동광학부를 이룸에 의해 틸트조정 및 디센트 조정이 필요없게 되어 다양한 관련제품에의 적용이 가능하며 제품의 단가를 낮출수 있는 효과가 있다.The present invention relates to an integrated optical pickup module, comprising a light emitting / receiving unit (10) having a laser diode (11) serving as a light source and a photodiode (12) for detecting pit information on a disk (D), and the laser diode (11). A waveguide member 20 for transmitting the beam B emitted from the light beam) and a reflective surface 33 for reflecting the beam B passing through the waveguide member 20 on the lower inclined surface 31 and having one side of the upper surface. A prism block 30 provided at the inclined surface 31 in which the light emitting / receiving portion 10 is integrally provided and the waveguide member 20 is opposite to the inclined surface 32 provided with the reflective surface 33; The reflection surface 33 is composed of an objective lens unit 40 integrally installed on one side of the upper surface of the prism block 30 to focus the beam (B) reflected on the disk (D). According to the present invention, it is possible to achieve a light and small size of the product using the optical pickup module, the integration of the optical pickup module is achieved, the structure is simplified and the assembly is improved, and the optical pickup module is integrated to operate one The optical part eliminates the need for tilt and descent adjustments, making it possible to apply to a variety of related products and to lower the cost of the product.

Description

일체형 광픽업 모듈All-in-one Optical Pickup Module

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

제2도는 본 발명에 의한 일체형 광픽업 모듈의 구성을 보인 단면구성도.2 is a cross-sectional view showing the configuration of an integrated optical pickup module according to the present invention.

제3도는 본 발명에 의한 일체형 광픽업 모듈의 구성을 보인 사시도.3 is a perspective view showing the configuration of an integrated optical pickup module according to the present invention.

Claims (3)

광원인 레이저 다이오드와 디스크 상의 피트정보를 검출하는 포토다이오드가 구비된 발광/수광부와, 상기 레이저 다이오드에서 발광된 빔을 전달하는 도파부재와, 하측 경사면에 상기 도파부재를 통과한 빔을 반사하는 반사면이 구비되고 상면 일측에 상기 발광/수광부가 일체로 구비되며 상기 도파부재가 상기 반사면이 구비된 경사면과 대향하는 경사면에 구비된 프리즘블록과, 상기 반사면에서 반사됨 빔을 디스크상에 집광시키도록 프리즘블록의 상면 일측에 일체로 설치된 대물렌즈부로 구성됨을 특징으로 하는 일체형 광픽업 모듈.A light emitting / receiving unit including a laser diode as a light source and a photodiode for detecting pit information on a disc, a waveguide member for transmitting a beam emitted from the laser diode, and a half reflecting a beam passing through the waveguide member on a lower inclined surface A prism block provided on an inclined surface opposite to an inclined surface on which the light guide / light receiving unit is integrally provided on one side of the upper surface and provided with a slope, and the beam reflected on the reflective surface is focused on a disk The integrated optical pickup module, characterized in that consisting of an objective lens unit integrally installed on one side of the upper surface of the prism block. 제1항에 있어서, 상기 도파부재는 그 일측면에는 상기 레이저다이오드에서 발광된 빔을 회절시키는 반사형 회절격자가 구비되고, 타측면에는 상기 회절격자에서 회절된 빔을 반사하는 반사미러가 형성되고, 상기 회절격자가 구비된 일측면 하부에는 상기 반사미러에서 반사되어 전달된 빔을 상기 프리즘블록의 반사면으로 전달하는 반사형 홀로그래픽광학소자가 구비되어 구성됨을 특징으로 하는 일체형 광픽업 모듈.According to claim 1, wherein the waveguide member has a reflective diffraction grating for diffracting the beam emitted from the laser diode on one side thereof, the reflection mirror for reflecting the beam diffracted by the diffraction grating is formed on the other side And a reflective holographic optical element configured to transmit a beam reflected by the reflective mirror to a reflective surface of the prism block, under the one side having the diffraction grating. 제1항에 있어서, 상기 대물렌즈부는 프리즘블록의 반사면에서 반사된 빔을 디스크상에 집광시키는 대물렌즈와, 상기 대물렌즈를 상기 프리즘블록의 상면 일측에 지지하는 대물렌즈지지체로 형성됨을 특징으로 하는 일체형 광픽업 모듈.The method of claim 1, wherein the objective lens unit is characterized in that the objective lens for condensing the beam reflected from the reflective surface of the prism block on the disk, and the objective lens support for supporting the objective lens on one side of the upper surface of the prism block Integrated optical pickup module. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950025895A 1995-08-22 1995-08-22 Integral optical pick-up module KR0141757B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950025895A KR0141757B1 (en) 1995-08-22 1995-08-22 Integral optical pick-up module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950025895A KR0141757B1 (en) 1995-08-22 1995-08-22 Integral optical pick-up module

Publications (2)

Publication Number Publication Date
KR970012352A true KR970012352A (en) 1997-03-29
KR0141757B1 KR0141757B1 (en) 1998-07-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950025895A KR0141757B1 (en) 1995-08-22 1995-08-22 Integral optical pick-up module

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100612833B1 (en) 2003-11-13 2006-08-18 삼성전자주식회사 Integrated optical pickup and optical recording and/or reproducing apparatus adapting the same

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Publication number Publication date
KR0141757B1 (en) 1998-07-15

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