KR850005672A - Information decoding device of optical record carrier - Google Patents

Information decoding device of optical record carrier Download PDF

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Publication number
KR850005672A
KR850005672A KR1019830006359A KR830006359A KR850005672A KR 850005672 A KR850005672 A KR 850005672A KR 1019830006359 A KR1019830006359 A KR 1019830006359A KR 830006359 A KR830006359 A KR 830006359A KR 850005672 A KR850005672 A KR 850005672A
Authority
KR
South Korea
Prior art keywords
beam splitter
recording carrier
light
information decoding
record carrier
Prior art date
Application number
KR1019830006359A
Other languages
Korean (ko)
Other versions
KR870000797B1 (en
Inventor
쥰이찌로 와까마야
Original Assignee
마쯔모또 오사무
아사히 고가꾸 고교 가부시끼가이샤
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 마쯔모또 오사무, 아사히 고가꾸 고교 가부시끼가이샤 filed Critical 마쯔모또 오사무
Priority to KR1019830006359A priority Critical patent/KR870000797B1/en
Publication of KR850005672A publication Critical patent/KR850005672A/en
Application granted granted Critical
Publication of KR870000797B1 publication Critical patent/KR870000797B1/en

Links

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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • 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
    • G11B7/1372—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
    • G11B7/1395—Beam splitters or combiners

Abstract

내용 없음No content

Description

광학적 기록 담체의 정보해독 장치Information decoding device of optical record carrier

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

제5도는 본 발명에 관한 광학적 기록담체의 정보 해독 장치의 실시예를 도시하는 광학계의 개념도.5 is a conceptual diagram of an optical system showing an embodiment of an information decoding apparatus of an optical record carrier according to the present invention.

Claims (2)

직선편광 레이저광을 투과형 회절격자 빔 스플리터 가동거울 및 대물렌즈를 통하여 광학적 기록담체에 조사하고, 그 기록담체로부터의 반사광을 다시 상기 대물렌즈 및 가동거울을 통하여 상기 빔 스플리터로 인도하고 이 빔 스플리터에서 입사광과는 다른 방향으로 굴절되는 상기 반사광에 의해 상기 광학적 기록담체에 기록되어 있는 정보를 해독하는 광학적 기록담체의 정보 해독장치에서 상기 직선 편광 레이저광의 광원과 빔 스플리터와의 사이에 그 레이저광을 확정하여 평행광선으로 하는 광속경확대렌즈를 위치시킨 것을 특징으로 하는 광학적 기록 담체의 정보해독 장치.The linearly polarized laser beam is irradiated to the optical recording carrier through the transmission diffraction grating beam splitter movable mirror and the objective lens, and the reflected light from the recording carrier is led back to the beam splitter through the objective lens and the movable mirror, and the beam splitter The laser beam is determined between the light source of the linearly polarized laser light and the beam splitter in an information recording device of the optical recording carrier which decodes the information recorded on the optical recording carrier by the reflected light refracted in the direction different from the incident light. And a beam expanding lens for parallel light. 특허청구의 범위 제 1 항에서 투과형 회절격자는 광속경 확대 렌즈와 빔 스플리터와의 사이에 배치되어 있는 광학적 기록담체의 정보해독 장치.2. The information decoding apparatus of an optical record carrier according to claim 1, wherein the transmission diffraction grating is disposed between the beam mirror magnifying lens and the beam splitter. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019830006359A 1983-12-31 1983-12-31 Information solution apparatus KR870000797B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019830006359A KR870000797B1 (en) 1983-12-31 1983-12-31 Information solution apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019830006359A KR870000797B1 (en) 1983-12-31 1983-12-31 Information solution apparatus

Publications (2)

Publication Number Publication Date
KR850005672A true KR850005672A (en) 1985-08-28
KR870000797B1 KR870000797B1 (en) 1987-04-18

Family

ID=19230807

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019830006359A KR870000797B1 (en) 1983-12-31 1983-12-31 Information solution apparatus

Country Status (1)

Country Link
KR (1) KR870000797B1 (en)

Also Published As

Publication number Publication date
KR870000797B1 (en) 1987-04-18

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