HK49783A - Information record - Google Patents

Information record

Info

Publication number
HK49783A
HK49783A HK497/83A HK49783A HK49783A HK 49783 A HK49783 A HK 49783A HK 497/83 A HK497/83 A HK 497/83A HK 49783 A HK49783 A HK 49783A HK 49783 A HK49783 A HK 49783A
Authority
HK
Hong Kong
Prior art keywords
layer
light
coating
thickness
record
Prior art date
Application number
HK497/83A
Other languages
English (en)
Original Assignee
Rca Corporation
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 Rca Corporation filed Critical Rca Corporation
Publication of HK49783A publication Critical patent/HK49783A/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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Holo Graphy (AREA)
HK497/83A 1977-03-28 1983-11-03 Information record HK49783A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US78203277A 1977-03-28 1977-03-28

Publications (1)

Publication Number Publication Date
HK49783A true HK49783A (en) 1983-11-11

Family

ID=25124733

Family Applications (1)

Application Number Title Priority Date Filing Date
HK497/83A HK49783A (en) 1977-03-28 1983-11-03 Information record

Country Status (9)

Country Link
JP (2) JPS53120506A (enrdf_load_stackoverflow)
AU (1) AU514899B2 (enrdf_load_stackoverflow)
DE (1) DE2757737A1 (enrdf_load_stackoverflow)
FR (1) FR2385535A1 (enrdf_load_stackoverflow)
GB (1) GB1590296A (enrdf_load_stackoverflow)
HK (1) HK49783A (enrdf_load_stackoverflow)
IT (1) IT1088701B (enrdf_load_stackoverflow)
MY (1) MY8400273A (enrdf_load_stackoverflow)
NL (1) NL191658C (enrdf_load_stackoverflow)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2817945A1 (de) * 1977-08-29 1979-03-15 Rca Corp Plattenrohling, insbesondere fuer eine optische bildplatte
US4195312A (en) * 1978-02-24 1980-03-25 Rca Corporation Recorder and antireflective record blank having an optically passive transparent layer
JPS56156941A (en) * 1980-05-06 1981-12-03 Nippon Telegr & Teleph Corp <Ntt> Optical recording medium
EP0045183B1 (en) * 1980-07-25 1984-12-05 Asahi Kasei Kogyo Kabushiki Kaisha Recording material
FR2488711B1 (fr) * 1980-08-13 1985-06-28 Thomson Csf Procede thermo-optique d'inscription d'information et support d'information destine a la mise en oeuvre de ce procede
JPS5952442A (ja) * 1982-09-14 1984-03-27 Kokusai Denshin Denwa Co Ltd <Kdd> 光磁気記録媒体
JPS59210545A (ja) * 1984-04-20 1984-11-29 Hitachi Ltd 情報記録媒体
JPH0624272U (ja) * 1992-08-31 1994-03-29 東芝機器株式会社 可撓性チューブの開閉装置
JP4778300B2 (ja) 2004-12-15 2011-09-21 株式会社リコー 追記型光記録媒体
CN101138035A (zh) * 2005-03-17 2008-03-05 株式会社理光 光学记录介质

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3651281A (en) * 1969-06-06 1972-03-21 Carl H Becker Laser recording system using photomagnetically magnetizable storage medium
US3665483A (en) * 1969-06-06 1972-05-23 Chase Manhattan Capital Corp Laser recording medium
DE2048430B2 (de) * 1970-10-02 1972-11-30 Licentia Patent-Verwaltungs-GmbH, 6000 Prankfurt Verfahren zur erzeugung von vorzugsweise mechanisch abtastbaren, reliefartigen vertiefungen oder erhebungen auf der oberflaeche eines informationstraegers
DE2522928C2 (de) * 1974-05-25 1984-04-05 Canon K.K., Tokyo Aufzeichnungsträger, Verfahren zu dessen Herstellung und Aufzeichnungsverfahren
JPS52155474A (en) * 1976-06-21 1977-12-23 Nippon Mining Co Magnetic force sorting device

Also Published As

Publication number Publication date
IT1088701B (it) 1985-06-10
AU3087677A (en) 1979-05-31
GB1590296A (en) 1981-05-28
NL191658B (nl) 1995-08-01
JPS6259372B2 (enrdf_load_stackoverflow) 1987-12-10
JPS53120506A (en) 1978-10-21
FR2385535A1 (fr) 1978-10-27
JPH0222453B2 (enrdf_load_stackoverflow) 1990-05-18
DE2757737A1 (de) 1978-10-05
MY8400273A (en) 1984-12-31
NL191658C (nl) 1995-12-02
DE2757737C2 (enrdf_load_stackoverflow) 1988-05-05
AU514899B2 (en) 1981-03-05
JPS6352347A (ja) 1988-03-05
FR2385535B1 (enrdf_load_stackoverflow) 1984-05-04
NL7713230A (nl) 1978-10-02

Similar Documents

Publication Publication Date Title
US4216501A (en) Optical anti-reflective information record
US4195312A (en) Recorder and antireflective record blank having an optically passive transparent layer
US4222071A (en) Sensitivity information record
US4097895A (en) Multilayer optical record
US4195313A (en) Antireflective information record having an optically passive transparent layer
US4305081A (en) Multilayer record blank for use in optical recording
US4329697A (en) Information record
US4190843A (en) Recording methods for a multilayer optical record
US4023185A (en) Ablative optical recording medium
US4189735A (en) Record playback apparatus and information record therefor
FR2485241A1 (fr) Element de memorisation magneto-optique
Bell et al. Antireflection structures for optical recording
EP0092113B1 (en) Optical recording medium for use in an optical storage system and method for making such recording medium
HK49783A (en) Information record
FR2491664A1 (fr) Dispositif de stockage d&#39;informations et son procede de fabrication
FR2533731A1 (fr) Dispositif de memoire thermomagneto-optique et son milieu d&#39;enregistrement
US4233626A (en) Playback information record using phase cancellation for reading
US4322839A (en) Method and apparatus for recording and reproducing information on and from an optical disk
US4270132A (en) Information record
JPH03292632A (ja) 光ディスクの信号再生方法
US4408213A (en) Reinforced bubble recording medium and information record
JPH06111372A (ja) 光ディスク
US4769290A (en) High efficiency reflectors and methods for making them
US4219848A (en) Optical record playback apparatus employing light frequency at which alternate regions of record track exhibit anti-reflection condition
US5495101A (en) Enhancement for broadband optical limiter with holographic grating

Legal Events

Date Code Title Description
PE Patent expired