Claims
- 1. A display hologram structure comprising:
- a substrate having first and second opposing sides;
- a light configuring hologram which is a transmission hologram attached to the first side of said substrate; and
- a display hologram which is a reflection hologram laminarly attached to said light configuring hologram and responsive to playback illumination at an incidence angle that is within 25 degrees of normal;
- wherein said light configuring hologram is responsive to a first playback beam for providing playback illumination to said display hologram at an incidence angle that is within 25 degrees of normal relative to said display hologram.
- 2. The display hologram structure of claim 1 wherein the firs playback beam is a trapped beam in said substrate.
- 3. The display hologram structure of claim 2 further including a light coupling hologram attached to the second side of said substrate for producing said trapped beam.
- 4. The display hologram structure of claim 3 wherein said light coupling hologram comprises a transmission hologram.
- 5. The display hologram structure of claim 3 wherein said light coupling hologram comprises a reflection hologram.
- 6. A display hologram structure comprising:
- a substrate having first and second opposing sides;
- a light configuring hologram which is a transmission hologram attached to the first side of said substrate; and
- a display hologram which is a transmission hologram laminarly attached to said light configuring hologram and responsive to playback illumination at an incidence angle that is within 25 degrees of normal;
- wherein said light configuring hologram is responsive to a first playback beam which is a trapped beam in said substrate for providing playback illumination to said display hologram at an incidence angle that is within 25 degrees of normal relative to said display hologram.
- 7. The display hologram structure of claim 6 further including a light coupling hologram attached to the second side of said substrate for producing said trapped beam.
- 8. The display hologram structure of claim 7 wherein said light coupling hologram comprising a transmission hologram.
- 9. The display hologram structure of claim 7 wherein said light-coupling hologram comprises a reflection hologram.
- 10. A display hologram structure comprising:
- a substrate having first and second opposing sides;
- a light configuring hologram which is a reflection hologram attached to the first side of said substrate;
- a display hologram which is a reflection hologram laminarly attached to said light configuring hologram and responsive to playback illumination at an incidence angle that is within 25 degrees of normal;
- wherein said light configuring hologram is responsive to a first playback beam for providing playback illumination to said display hologram at an incidence angle that is within 25 degrees of normal relative to said display hologram.
- 11. The display hologram structure of claim 10 wherein the first playback beam is a trapped beam in said substrate.
- 12. The display hologram structure of claim 11 further including a light coupling hologram attached to the second side of said substrate for producing said tapped beam.
- 13. The display hologram structure of claim 12 wherein said light coupling hologram comprises a transmission hologram.
- 14. The display hologram structure of claim 12 wherein said light coupling hologram comprises a reflection hologram.
- 15. A display hologram structure comprising:
- a substrate having first and second opposing sides;
- a light configuring hologram which is a reflection hologram attached to the first side of said substrate; and
- a display hologram which is a transmission hologram laminarly attached to said light configuring hologram and responsive to playback illumination at an incidence angle that is within 25 degrees of normal;
- wherein said light configuring hologram is responsive to a first playback beam for providing playback illumination to said display hologram at an incidence angle that is within 25 degrees of normal relative to said display hologram.
- 16. The display hologram structure of claim 15 wherein the first playback beam is a trapped beam in said substrate.
- 17. The display hologram structure of claim 16 further including a light coupling hologram attached to the second side of said substrate for producing said trapped beam.
- 18. The display hologram structure of claim 17 wherein said light coupling hologram comprises s transmission hologram.
- 19. The display hologram structure of claim 17 wherein said light coupling hologram comprises a reflection hologram.
Parent Case Info
This is a continuation of application Ser. No. 07/949,948 filed Sep. 24, 1992, now abandoned.
US Referenced Citations (7)
Foreign Referenced Citations (2)
Number |
Date |
Country |
57-142608 |
Sep 1982 |
JPX |
59-53805 |
Mar 1984 |
JPX |
Continuations (1)
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Number |
Date |
Country |
Parent |
949948 |
Sep 1992 |
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