JPS54146650A - Hologram reproducing device - Google Patents
Hologram reproducing deviceInfo
- 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
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
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01290287A (en) * | 1988-05-18 | 1989-11-22 | Fujitsu Ltd | Mounting structure of semiconductor module |
-
1978
- 1978-05-08 JP JP5486478A patent/JPS54146650A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6112266B2 (en) | 1986-04-07 |
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