JPS5545041A - Hologram memory recording method - Google Patents

Hologram memory recording method

Info

Publication number
JPS5545041A
JPS5545041A JP11833578A JP11833578A JPS5545041A JP S5545041 A JPS5545041 A JP S5545041A JP 11833578 A JP11833578 A JP 11833578A JP 11833578 A JP11833578 A JP 11833578A JP S5545041 A JPS5545041 A JP S5545041A
Authority
JP
Japan
Prior art keywords
holograms
spacings
hologram
recording
transmittances
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
JP11833578A
Other languages
Japanese (ja)
Inventor
Makoto Kato
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
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP11833578A priority Critical patent/JPS5545041A/en
Publication of JPS5545041A publication Critical patent/JPS5545041A/en
Pending legal-status Critical Current

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Landscapes

  • Holo Graphy (AREA)

Abstract

PURPOSE: To make possible suppression of the reflected components that the 0 order transmitted light at the information reproducing produces in the read lens by blackening the spacings between element holograms through multiple exposure at the hologram recording.
CONSTITUTION: When the rectagular opening 17 of a mask 18 provided immediate before a recording medium 16 is let to be D1×D2, the spacings between element holograms 41, 42... to be vertical direction b1 and horizontal direction b2, and the sizes of element holograms 41, 42... to be vertical a1, horizontal a2, then the abovementioned opening is formed to D1=a1+2b1, D2=a2+2b2. Recording is progressed by providing the overlap of b1, b2 while deviating the recording medium 16 by a1+b1 each in the vertical direction and a2+b2 in the horizontal direction. The holograms are formed in the form that a1×a2 is their effective opening size in the final. Because of this, the respective spacings are recorded doublefold or fourfold and become higher in density, the transmittances of which portions become further smaller as compared to the transmittances of the amplitude hologram portions, thus blackening progresses. As a result, even if a light beam is radiated to the hologram memory plate 25, the 0 order transmitted light receives constant attenuation in the effective opening parts of the holograms.
COPYRIGHT: (C)1980,JPO&Japio
JP11833578A 1978-09-25 1978-09-25 Hologram memory recording method Pending JPS5545041A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11833578A JPS5545041A (en) 1978-09-25 1978-09-25 Hologram memory recording method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11833578A JPS5545041A (en) 1978-09-25 1978-09-25 Hologram memory recording method

Publications (1)

Publication Number Publication Date
JPS5545041A true JPS5545041A (en) 1980-03-29

Family

ID=14734111

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11833578A Pending JPS5545041A (en) 1978-09-25 1978-09-25 Hologram memory recording method

Country Status (1)

Country Link
JP (1) JPS5545041A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS642813U (en) * 1987-06-18 1989-01-10

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS642813U (en) * 1987-06-18 1989-01-10
JPH0539122Y2 (en) * 1987-06-18 1993-10-04

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