FR2202304B1 - - Google Patents

Info

Publication number
FR2202304B1
FR2202304B1 FR7335369A FR7335369A FR2202304B1 FR 2202304 B1 FR2202304 B1 FR 2202304B1 FR 7335369 A FR7335369 A FR 7335369A FR 7335369 A FR7335369 A FR 7335369A FR 2202304 B1 FR2202304 B1 FR 2202304B1
Authority
FR
France
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
FR7335369A
Other languages
French (fr)
Other versions
FR2202304A1 (zh
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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
Priority claimed from JP10001972A external-priority patent/JPS5127549B2/ja
Priority claimed from JP10211572A external-priority patent/JPS5147630B2/ja
Priority claimed from JP47102920A external-priority patent/JPS5925222B2/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of FR2202304A1 publication Critical patent/FR2202304A1/fr
Application granted granted Critical
Publication of FR2202304B1 publication Critical patent/FR2202304B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/32—Holograms used as optical elements
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Holo Graphy (AREA)
FR7335369A 1972-10-04 1973-10-03 Expired FR2202304B1 (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP10001972A JPS5127549B2 (zh) 1972-10-04 1972-10-04
JP10211572A JPS5147630B2 (zh) 1972-10-11 1972-10-11
JP47102920A JPS5925222B2 (ja) 1972-10-13 1972-10-13 ホログラフイツクスリツト

Publications (2)

Publication Number Publication Date
FR2202304A1 FR2202304A1 (zh) 1974-05-03
FR2202304B1 true FR2202304B1 (zh) 1976-12-10

Family

ID=27309118

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7335369A Expired FR2202304B1 (zh) 1972-10-04 1973-10-03

Country Status (3)

Country Link
CA (1) CA999458A (zh)
FR (1) FR2202304B1 (zh)
GB (1) GB1451083A (zh)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3567305A (en) * 1966-10-18 1971-03-02 Bell Telephone Labor Inc Hologram masking techniques

Also Published As

Publication number Publication date
GB1451083A (en) 1976-09-29
FR2202304A1 (zh) 1974-05-03
CA999458A (en) 1976-11-09
DE2349727A1 (de) 1974-04-11
DE2349727B2 (de) 1975-11-27

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Legal Events

Date Code Title Description
ST Notification of lapse