JPS6444414A - Display device - Google Patents

Display device

Info

Publication number
JPS6444414A
JPS6444414A JP62200791A JP20079187A JPS6444414A JP S6444414 A JPS6444414 A JP S6444414A JP 62200791 A JP62200791 A JP 62200791A JP 20079187 A JP20079187 A JP 20079187A JP S6444414 A JPS6444414 A JP S6444414A
Authority
JP
Japan
Prior art keywords
display device
hologram
wave
type hologram
plane
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
JP62200791A
Other languages
Japanese (ja)
Inventor
Junichi Fukano
Shigeru Okabayashi
Tomohisa Ishikawa
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.)
Central Glass Co Ltd
Nissan Motor Co Ltd
Original Assignee
Central Glass Co Ltd
Nissan Motor 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 Central Glass Co Ltd, Nissan Motor Co Ltd filed Critical Central Glass Co Ltd
Priority to JP62200791A priority Critical patent/JPS6444414A/en
Publication of JPS6444414A publication Critical patent/JPS6444414A/en
Pending legal-status Critical Current

Links

Landscapes

  • Holo Graphy (AREA)
  • Instrument Panels (AREA)

Abstract

PURPOSE:To make the display angle of a display device invariably constant by simple constitution and to determine the fitting position of the display device freely by providing a reflection type hologram based upon plane waves in two directions and a transmission type hologram based upon a plane wave and a spherical wave on a projection optical path from the display device. CONSTITUTION:Laser light from an oscillator 11 is split into two by a splitter 12 and the two plane waves from the top and reverse surface of a negative plate 3 are projected interfering with each other, thereby forming the reflection type hologram 3 through development. Light from an oscillator 21 is split into two and the plane wave and spherical waves are projected interfering with to form the transmission type hologram 5. Information from the display device 4 is diffracted by the hologram 5, transmitted light is made incident on the hologram 3 as a plane wave, and a driver 6 views its reflected wave together with a foreground. Information is therefore the plane wave, so the display angle is invariably constant and the fitting position of the display device 4 is selected freely, and the transmission type hologram satisfies Bragg condition over a wide wavelength range and even when the reflected main wave length of the hologram 3 is different from a designed value, that is compensated.
JP62200791A 1987-08-13 1987-08-13 Display device Pending JPS6444414A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62200791A JPS6444414A (en) 1987-08-13 1987-08-13 Display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62200791A JPS6444414A (en) 1987-08-13 1987-08-13 Display device

Publications (1)

Publication Number Publication Date
JPS6444414A true JPS6444414A (en) 1989-02-16

Family

ID=16430249

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62200791A Pending JPS6444414A (en) 1987-08-13 1987-08-13 Display device

Country Status (1)

Country Link
JP (1) JPS6444414A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016128861A (en) * 2015-01-09 2016-07-14 セイコーエプソン株式会社 Image display device and manufacturing method of image display device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60198515A (en) * 1984-02-03 1985-10-08 フライト・ダイナミツクス・インコ−ポレ−テツド Normal type display system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60198515A (en) * 1984-02-03 1985-10-08 フライト・ダイナミツクス・インコ−ポレ−テツド Normal type display system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016128861A (en) * 2015-01-09 2016-07-14 セイコーエプソン株式会社 Image display device and manufacturing method of image display device

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