JPS54146650A - Hologram reproducing device - Google Patents

Hologram reproducing device

Info

Publication number
JPS54146650A
JPS54146650A JP5486478A JP5486478A JPS54146650A JP S54146650 A JPS54146650 A JP S54146650A JP 5486478 A JP5486478 A JP 5486478A JP 5486478 A JP5486478 A JP 5486478A JP S54146650 A JPS54146650 A JP S54146650A
Authority
JP
Japan
Prior art keywords
image
hologram
irradiated
diffusion plate
reproduced
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.)
Granted
Application number
JP5486478A
Other languages
Japanese (ja)
Other versions
JPS6112266B2 (en
Inventor
Yoshikazu Nakayama
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 JP5486478A priority Critical patent/JPS54146650A/en
Publication of JPS54146650A publication Critical patent/JPS54146650A/en
Publication of JPS6112266B2 publication Critical patent/JPS6112266B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Holo Graphy (AREA)

Abstract

PURPOSE: To provide the subject device wherein laser light is irradiated on a hologram by use of a false random diffusion plate, whereby generation of noise on the boundary surface with respect to the phase shifting quantity is degreased to obtain a reproduced picture image of a high quality.
CONSTITUTION: Laser light emitted from an optical source 11 is irradiated on a hologram 14 through a reproduced light flux illuminating device 12. In this case, when a false random diffusion plate is used for the device 12, the inclined surface of the phase deviation quantity within the diffusion plate are fundamentarily four, and acute angles from the base plate surfaces are qual. Therefore, in the hologram 14, four areas corresponding to respective surfaces and respective areas surrounding points A, B, C and D of distance δ from the optical axes are made correspondent to each other. Accordingly, the device 12 is irradiated by luminous fluxes using the points A, B, C and D as centers and further having small coherence, and the diffracted wave from the hologram 14 is image-formed as an image having little fluctuation on an image surface 16 through a Fourier conversion lens 15, and a reproduced image of a high quality is obtained in a detector 13.
COPYRIGHT: (C)1979,JPO&Japio
JP5486478A 1978-05-08 1978-05-08 Hologram reproducing device Granted JPS54146650A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5486478A JPS54146650A (en) 1978-05-08 1978-05-08 Hologram reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5486478A JPS54146650A (en) 1978-05-08 1978-05-08 Hologram reproducing device

Publications (2)

Publication Number Publication Date
JPS54146650A true JPS54146650A (en) 1979-11-16
JPS6112266B2 JPS6112266B2 (en) 1986-04-07

Family

ID=12982448

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5486478A Granted JPS54146650A (en) 1978-05-08 1978-05-08 Hologram reproducing device

Country Status (1)

Country Link
JP (1) JPS54146650A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01290287A (en) * 1988-05-18 1989-11-22 Fujitsu Ltd Mounting structure of semiconductor module

Also Published As

Publication number Publication date
JPS6112266B2 (en) 1986-04-07

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