JPS6444912A - Display device - Google Patents
Display deviceInfo
- Publication number
- JPS6444912A JPS6444912A JP20226387A JP20226387A JPS6444912A JP S6444912 A JPS6444912 A JP S6444912A JP 20226387 A JP20226387 A JP 20226387A JP 20226387 A JP20226387 A JP 20226387A JP S6444912 A JPS6444912 A JP S6444912A
- Authority
- JP
- Japan
- Prior art keywords
- image
- lens
- light source
- aperture limiting
- pupil
- 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
Links
Abstract
PURPOSE:To prevent the occurrence of the local shortage of a visual field by forming the image of a light source into an image near the pupil of a projecting lens by a condenser lens and forming an aperture limiting element arranged near the image of light source into the image near an observing point where two pieces of information are observed. CONSTITUTION:The image of the light source 71 is formed near the pupil of an image-formation lens 3 and a rectangular aperture limiting element 20 is arranged near the pupil. Luminous flux passing through the image-formation lens 3 is made incident on a hologram lens element 5 on a transparent substrate 4 as the divergent light. The hologram lens element 5 is set so as to work as a concave mirror and the aperture limiting element 20 is formed into the image with the image of the light source 71 near an observer 10. On the other hand, the image of a display element 2 is formed as an aerial image 21 by the image-formation lens 3, and the image 21 is displayed as a virtual image 22 which is enlarged in the distance with the action of the hologram lens element 5. Thus, the luminous flux which is made incident on the condenser lens 72 is all led near to the observer 10 with the aperture limiting element 20.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20226387A JPS6444912A (en) | 1987-08-13 | 1987-08-13 | Display device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20226387A JPS6444912A (en) | 1987-08-13 | 1987-08-13 | Display device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6444912A true JPS6444912A (en) | 1989-02-17 |
Family
ID=16454644
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20226387A Pending JPS6444912A (en) | 1987-08-13 | 1987-08-13 | Display device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6444912A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0651006U (en) * | 1992-12-25 | 1994-07-12 | オリンパス光学工業株式会社 | Seat display device |
JP2009251194A (en) * | 2008-04-03 | 2009-10-29 | Toshiba Corp | Display, head-up display and moving object using the same |
JP2019045605A (en) * | 2017-08-31 | 2019-03-22 | 国立大学法人東北大学 | Head-up display device |
-
1987
- 1987-08-13 JP JP20226387A patent/JPS6444912A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0651006U (en) * | 1992-12-25 | 1994-07-12 | オリンパス光学工業株式会社 | Seat display device |
JP2009251194A (en) * | 2008-04-03 | 2009-10-29 | Toshiba Corp | Display, head-up display and moving object using the same |
JP2019045605A (en) * | 2017-08-31 | 2019-03-22 | 国立大学法人東北大学 | Head-up display device |
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