JPS5581382A - Production of optical reading hologram - Google Patents

Production of optical reading hologram

Info

Publication number
JPS5581382A
JPS5581382A JP15614178A JP15614178A JPS5581382A JP S5581382 A JPS5581382 A JP S5581382A JP 15614178 A JP15614178 A JP 15614178A JP 15614178 A JP15614178 A JP 15614178A JP S5581382 A JPS5581382 A JP S5581382A
Authority
JP
Japan
Prior art keywords
holograms
light
exposure
regions
region
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
JP15614178A
Other languages
Japanese (ja)
Other versions
JPS6242506B2 (en
Inventor
Seikichi Matsumoto
Hiroyuki Ikeda
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP15614178A priority Critical patent/JPS5581382A/en
Publication of JPS5581382A publication Critical patent/JPS5581382A/en
Publication of JPS6242506B2 publication Critical patent/JPS6242506B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Mechanical Optical Scanning Systems (AREA)
  • Holo Graphy (AREA)
  • Optical Recording Or Reproduction (AREA)

Abstract

PURPOSE: To achieve the improvement in the performances of holograms, reduce read errors, etc. and improve the realiability of the apparatus by changing the exposure to scanning holograms and condensing holograms.
CONSTITUTION: Photosensitive material is coated on a substrate 4 for holograms and a hologram region 5 for scanning the target by laser light and hologram regions 6 for condensing the reflected light from the target are formed thereon. In this case, the region 5 is exposed under the conditions where the exposure is in the range (a) by using a mask having a light transmission window 7 and a light-blocking part 8, thence the regions 6 are exposed under the conditions where the exposure is in the range (b) by using a mask having light transmission windows 9 and a light blocking part 10. As a result of this, the region 5 becomes high in diffraction efficiency and is improved of S/N and the regions 6 become high in diffraction efficiency and have less differences depending upon places, thus the performances of the holograms improve.
COPYRIGHT: (C)1980,JPO&Japio
JP15614178A 1978-12-15 1978-12-15 Production of optical reading hologram Granted JPS5581382A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15614178A JPS5581382A (en) 1978-12-15 1978-12-15 Production of optical reading hologram

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15614178A JPS5581382A (en) 1978-12-15 1978-12-15 Production of optical reading hologram

Publications (2)

Publication Number Publication Date
JPS5581382A true JPS5581382A (en) 1980-06-19
JPS6242506B2 JPS6242506B2 (en) 1987-09-08

Family

ID=15621211

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15614178A Granted JPS5581382A (en) 1978-12-15 1978-12-15 Production of optical reading hologram

Country Status (1)

Country Link
JP (1) JPS5581382A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5624310A (en) * 1979-08-02 1981-03-07 Ricoh Co Ltd Hologram for hologram scanner and its production
JPH01273084A (en) * 1988-03-14 1989-10-31 Hughes Aircraft Co Diamond shaped mask for forming multiple exposure hologram
JPH028882A (en) * 1988-03-14 1990-01-12 Hughes Aircraft Co Multiple exposure hologram for minimizing radio interference

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5624310A (en) * 1979-08-02 1981-03-07 Ricoh Co Ltd Hologram for hologram scanner and its production
JPH01273084A (en) * 1988-03-14 1989-10-31 Hughes Aircraft Co Diamond shaped mask for forming multiple exposure hologram
JPH028882A (en) * 1988-03-14 1990-01-12 Hughes Aircraft Co Multiple exposure hologram for minimizing radio interference

Also Published As

Publication number Publication date
JPS6242506B2 (en) 1987-09-08

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