GB1093437A - Improvements in or relating to processes for recording and reproducing data on recording carriers - Google Patents

Improvements in or relating to processes for recording and reproducing data on recording carriers

Info

Publication number
GB1093437A
GB1093437A GB43548/65A GB4354865A GB1093437A GB 1093437 A GB1093437 A GB 1093437A GB 43548/65 A GB43548/65 A GB 43548/65A GB 4354865 A GB4354865 A GB 4354865A GB 1093437 A GB1093437 A GB 1093437A
Authority
GB
United Kingdom
Prior art keywords
titanium
recording
oxide
selectively
oct
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB43548/65A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1093437A publication Critical patent/GB1093437A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
    • G11C13/04—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam
    • G11C13/048—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam using other optical storage elements
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/03—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by deforming with non-mechanical means, e.g. laser, beam of particles
    • 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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0055—Erasing
    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B9/00—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)

Abstract

1,093,437. Electron beam irradiation apparatus. A. E. DE RUDNAY. Oct. 14, 1965 [Oct. 15, 1964], No. 43548/65. Heading H1D. [Also in Division G5] The record/read process is basically similar to that described in Specification 1,093,436, but is intended for forming permanent, non- erasible records. In one example 1Á of titanium is deposited on a glass plate and selectively oxidized so that the oxide varies from 300Š with blue light reflectance of 1% to 700Š, where the reflectance is 65%. In a second example, a thin layer of titanium or aluminium is supported on a plastics film, preferably sandwiched between two such films and bombarded by a laser beam to produce an oxide layer with modulated interference colour patterns. In a third example, an oxide is produced and then removed by vaporization to leave a light-modulating groove structure. In a fourth example, a titanium layer is selectively nitrided to vary its reflection of green light. In a fifth example, a Fabry-Perot filter is made of a platinum-group metal and is selectively treated with hydrogen to modulate its optical transmission and/or reflection properties.
GB43548/65A 1964-10-15 1965-10-14 Improvements in or relating to processes for recording and reproducing data on recording carriers Expired GB1093437A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DER0039014 1964-10-15
DER0039013 1964-10-15

Publications (1)

Publication Number Publication Date
GB1093437A true GB1093437A (en) 1967-12-06

Family

ID=25991829

Family Applications (2)

Application Number Title Priority Date Filing Date
GB43547/65A Expired GB1093436A (en) 1964-10-15 1965-10-14 Improvements in or relating to processes for recording and reproducing data on recording carriers
GB43548/65A Expired GB1093437A (en) 1964-10-15 1965-10-14 Improvements in or relating to processes for recording and reproducing data on recording carriers

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB43547/65A Expired GB1093436A (en) 1964-10-15 1965-10-14 Improvements in or relating to processes for recording and reproducing data on recording carriers

Country Status (3)

Country Link
DE (2) DE1449852A1 (en)
FR (2) FR1450132A (en)
GB (2) GB1093436A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0258460A1 (en) * 1986-02-07 1988-03-09 Institut Problem Modelirovania V Energetike Akademii Nauk Ukrainskoi Ssr Method and optical memorization device for recording and erasing of information on an optical carrier
BE1000802A4 (en) * 1987-08-06 1989-04-11 Akad Nauk Sssr Optical disc data recording technique - by use of laser to induce formation of deposit on photosensitive recording medium

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0258460A1 (en) * 1986-02-07 1988-03-09 Institut Problem Modelirovania V Energetike Akademii Nauk Ukrainskoi Ssr Method and optical memorization device for recording and erasing of information on an optical carrier
EP0258460A4 (en) * 1986-02-07 1988-06-13 Akad Nauk Sssr Method and optical memorization device for recording and erasing of information on an optical carrier.
BE1000802A4 (en) * 1987-08-06 1989-04-11 Akad Nauk Sssr Optical disc data recording technique - by use of laser to induce formation of deposit on photosensitive recording medium

Also Published As

Publication number Publication date
DE1449851A1 (en) 1970-07-23
GB1093436A (en) 1967-12-06
DE1449852A1 (en) 1970-08-06
FR1450131A (en) 1966-05-06
FR1450132A (en) 1966-05-06

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