JPS545453A - Hologram memory reader - Google Patents

Hologram memory reader

Info

Publication number
JPS545453A
JPS545453A JP7012977A JP7012977A JPS545453A JP S545453 A JPS545453 A JP S545453A JP 7012977 A JP7012977 A JP 7012977A JP 7012977 A JP7012977 A JP 7012977A JP S545453 A JPS545453 A JP S545453A
Authority
JP
Japan
Prior art keywords
hologram memory
memory reader
trackings
tracking
providing
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.)
Pending
Application number
JP7012977A
Other languages
Japanese (ja)
Inventor
Keiichi Kubota
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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
Application filed by NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP7012977A priority Critical patent/JPS545453A/en
Publication of JPS545453A publication Critical patent/JPS545453A/en
Pending legal-status Critical Current

Links

Landscapes

  • Holo Graphy (AREA)

Abstract

PURPOSE: To make possible self-tracking by so providing a feedback circuit that the reconstruction light quantities of the hologram memory plate having plural holograms for trackings become equal.
COPYRIGHT: (C)1979,JPO&Japio
JP7012977A 1977-06-13 1977-06-13 Hologram memory reader Pending JPS545453A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7012977A JPS545453A (en) 1977-06-13 1977-06-13 Hologram memory reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7012977A JPS545453A (en) 1977-06-13 1977-06-13 Hologram memory reader

Publications (1)

Publication Number Publication Date
JPS545453A true JPS545453A (en) 1979-01-16

Family

ID=13422628

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7012977A Pending JPS545453A (en) 1977-06-13 1977-06-13 Hologram memory reader

Country Status (1)

Country Link
JP (1) JPS545453A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4307929A (en) * 1979-08-29 1981-12-29 Eveleth Jason H Method of scanning a laser beam in a straight line

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4307929A (en) * 1979-08-29 1981-12-29 Eveleth Jason H Method of scanning a laser beam in a straight line

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