US5455693A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display hologram
Assignee: Dai Nippon Printing Co Ltd
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Filing: 1994-08-29
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Granted: 1995-10-03
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Expires: 2014-08-29
Abstract
Abstract A display hologram structure including a display hologram configured for reconstruction with a playback beam having a predetermined wavefront configuration, and a light configuring hologram that provides playback illumination for the display hologram pursuant to diffraction of an off-axis playback beam that does not have the predetermined wavefront configuration, and wherein the playback illumination provided by the light configuring hologram has the predetermined wavefront configuration.
Inventors
- 👤 John E. Wreede
- 👤 James E. Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:19
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/09; G02B27/0938; G02B27/0944; G02B5/00; G02B5/32; G03; G03H; G03H1/00; G03H1/04; G03H1/0402; G03H1/0408; G03H1/22; G03H1/2286; G03H1/2202; G03H2001/2223; G03H2001/2226; G03H1/26; G03H2001/2605; G03H2001/261; G03H2001/2625; G03H2001/264; G03H2223/00; G03H2223/16
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
98 words
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.
Claim 2
Dependent Claim
98 words
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.
Claim 3
Dependent Claim
19 words
The display hologram structure of claim 1 wherein the firs playback beam is a trapped beam in said substrate.
Claim 4
Dependent Claim
26 words
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.
Claim 5
Dependent Claim
16 words
The display hologram structure of claim 3 wherein said light coupling hologram comprises a transmission hologram.
Claim 6
Dependent Claim
16 words
The display hologram structure of claim 3 wherein said light coupling hologram comprises a reflection hologram.
Claim 7
Dependent Claim
106 words
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.
Claim 8
Dependent Claim
106 words
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.
Claim 9
Dependent Claim
26 words
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.
Claim 10
Dependent Claim
16 words
The display hologram structure of claim 7 wherein said light coupling hologram comprising a transmission hologram.
Claim 11
Dependent Claim
15 words
The display hologram structure of claim 7 wherein said light-coupling hologram comprises a reflection hologram.
Claim 12
Dependent Claim
97 words
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.
Claim 13
Dependent Claim
97 words
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.
Claim 14
Dependent Claim
19 words
The display hologram structure of claim 10 wherein the first playback beam is a trapped beam in said substrate.
Claim 15
Dependent Claim
26 words
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.
Claim 16
Dependent Claim
16 words
The display hologram structure of claim 12 wherein said light coupling hologram comprises a transmission hologram.
Claim 17
Dependent Claim
16 words
The display hologram structure of claim 12 wherein said light coupling hologram comprises a reflection hologram.
Claim 18
Dependent Claim
98 words
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.
Claim 19
Dependent Claim
98 words
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.
Claim 20
Dependent Claim
19 words
The display hologram structure of claim 15 wherein the first playback beam is a trapped beam in said substrate.
Claim 21
Dependent Claim
26 words
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.
Claim 22
Dependent Claim
16 words
The display hologram structure of claim 17 wherein said light coupling hologram comprises s transmission hologram.
Claim 23
Dependent Claim
16 words
The display hologram structure of claim 17 wherein said light coupling hologram comprises a reflection hologram.
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