Photographic products for direct observation and optical projection, and photographic processes for their production and utilization, photographic devices for use therewith
First Claim
Patent Images
1. A photographic assemblage comprising, in laminated superposition:
- a. a photographic stratum composed of a photosensitive material;
b. a liquid crystal stratum composed of a material selected from the class consisting of nematic materials, smectic materials, cholesteric materials and mixtures thereof, exhibiting a light scattering optical texture in response to a first voltage and a clear optical texture in response to a second voltage;
c. a first electrically conducting stratum and a second electrically conducting stratum having a region interposed therebetween;
d. said liquid crystal stratum being within said region between said first electrically conducting stratum and said second electrically conducting stratum;
e. said photographic stratum being external of said region between said first electrically conductive stratum and said second electrically conductive stratum;
f. said liquid crystal stratum being characterized substantially throughout by said light scattering texture as a function of said first voltage between said first electrically conductive stratum and said second electrically conductive stratum;
g. said liquid crystal stratum being characterized substantially throughout by said clear optical texture as a function of said second voltage between said first electrically conductive stratum and said second electrically conductive stratum;
h. one of said first electrically conductive stratum and said second electrically conductive stratum being interposed between said liquid crystal stratum and said photographic stratum and being optically clear;
i. whereby, with said first voltage, said photographic stratum constitutes means for viewing in terms of light scattered from said liquid crystal stratum and, with said second voltage, said photographic stratum constitutes means for imaging in terms of light directed through said liquid crystal stratum.
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Abstract
A visual presentation sheet is provided with a photographic image stratum and a liquid crystal stratum. Under certain energy conditions, the liquid crystal stratum scatters incident light so that the photographic image stratum is visible by direct observation. Under other energy conditions, the liquid crystal stratum is cleared to enable optical projection of the photographic image stratum.
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Citations
49 Claims
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1. A photographic assemblage comprising, in laminated superposition:
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a. a photographic stratum composed of a photosensitive material; b. a liquid crystal stratum composed of a material selected from the class consisting of nematic materials, smectic materials, cholesteric materials and mixtures thereof, exhibiting a light scattering optical texture in response to a first voltage and a clear optical texture in response to a second voltage; c. a first electrically conducting stratum and a second electrically conducting stratum having a region interposed therebetween; d. said liquid crystal stratum being within said region between said first electrically conducting stratum and said second electrically conducting stratum; e. said photographic stratum being external of said region between said first electrically conductive stratum and said second electrically conductive stratum; f. said liquid crystal stratum being characterized substantially throughout by said light scattering texture as a function of said first voltage between said first electrically conductive stratum and said second electrically conductive stratum; g. said liquid crystal stratum being characterized substantially throughout by said clear optical texture as a function of said second voltage between said first electrically conductive stratum and said second electrically conductive stratum; h. one of said first electrically conductive stratum and said second electrically conductive stratum being interposed between said liquid crystal stratum and said photographic stratum and being optically clear; i. whereby, with said first voltage, said photographic stratum constitutes means for viewing in terms of light scattered from said liquid crystal stratum and, with said second voltage, said photographic stratum constitutes means for imaging in terms of light directed through said liquid crystal stratum. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A photographic assemblage comprising, in laminated superposition:
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a. a photographic stratum composed of a photosensitive material; b. a liquid crystal stratum composed of a material selected from the class consisting of nematic materials, smectic materials, cholesteric materials and mixtures thereof, exhibiting a light scattering optical texture in response to a first voltage and a clear optical texture in response to a second voltage; c. a first electrically conducting stratum and a second electrically conducting stratum having a region interposed therebetween; d. said liquid crystal stratum being within said region between said first electrically conducting stratum and said second electrically conducting stratum; e. said photographic stratum being external of said region between said first electrically conductive stratum and said second electrically conductive stratum; f. said liquid crystal stratum being characterized substantially throughout by said light scattering texture as a function of said first voltage between said first electrically conductive stratum and said second electrically conductive stratum; g. said liquid crystal stratum being characterized substantially throughout by said optically clear texture as a function of said second voltage between said first electrically conductive stratum and said second electrically conductive stratum; h. one of said first electrically conductive stratum and said second electrically conductive stratum being interposed between said liquid crystal stratum and said photographic stratum and being optically clear; i. first electrode means contacting said first electrically conducting stratum; j. second electrode means contacting said second electrically conducting stratum; k. said first electrode means and said second electrode means being accessible externally of said photographic assemblage; l. whereby with said first voltage, said photographic stratum constitutes means for viewing in terms of light scattered from said liquid crystal stratum and, with said second voltage, said photographic stratum constitutes means for imaging in terms of light directed through said liquid crystal stratum. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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17. Photographic assemblage means for presenting a stack of superposed components in a photographic frame, said components comprising:
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a. photographic stratum means for optical registration in said stack and composed of a photosensitive material; b. liquid crystal stratum means for optical registration in said stack and composed of a material selected from the class consisting of nematic materials, smectic materials, cholesteric materials and mixtures thereof, exhibiting a light scattering optical texture in response to a first voltage condition and a light transmitting optical texture in response to a second voltage condition; c. first electrode stratum means for optical registration in said stack; d. second electrode stratum means for optical registration in said stack; e. said liquid crystal stratum means being located for operation between said first electrode stratum means and said second electrode stratum means; f. one of said first electrode stratum means and said second electrode stratum means being located for operation between said liquid crystal stratum means and said photographic stratum means and being optically clear; g. said liquid crystal stratum means constituting a background when said material thereof exhibits said light scattering optical texture and constituting a window when said material thereof exhibits said light transmitting optical texture; h. said background being constituted as a function of said first voltage condition between said first electrode stratum means and said second electrode stratum means; i. said window being constituted as a function of said second voltage condition between said first electrode stratum means and said second electrode stratum means; j. whereby, when said liquid crystal stratum means is in said first voltage condition, said photographic stratum means establishes viewing in terms of light directed through said photographic stratum means and scattered from said liquid crystal stratum means and, when said liquid crystal stratum means is in said second voltage condition, said photographic stratum means establishes imaging in terms of light directed through said photographic stratum means and through said liquid crystal stratum means. - View Dependent Claims (18, 19, 20, 21)
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22. A photographic assemblage comprising, in laminated sequence;
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a. a polymeric support stratum; b. a first electrode stratum; c. a liquid crystal stratum containing a mixture of nematic material and cholesteric material, exhibiting a scattering optical texture under at least one voltage condition and a clear texture under at least another voltage condition; d. a second electrode stratum; e. a polymeric support stratum; and f. a photographic stratum composed of a photosensitive material. - View Dependent Claims (23, 24)
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25. A photographic assemblage comprising, in laminated superposition;
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a. a photographic stratum incorporating a photograph; b. a liquid crystal stratum composed of a material selected from the class consisting of nematic materials, smectic materials, cholesteric materials and mixtures thereof, exhibiting a light scattering optical texture in response to a first voltage and a clear optical texture in response to a second voltage; c. a first electrically conducting stratum and a second electrically conducting stratum having a region interposed therebetween; d. said liquid crystal stratum being within said region between said first electrically conducting stratum and said second electrically conducting stratum; e. said photographic stratum being external of said region between said first electrically conductive stratum and said second electrically conductive stratum; f. said liquid crystal stratum being characterized substantially throughout by said light scattering texture as a function of said first voltage between said first electrically conductive stratum and said second electrically conductive stratum; g. said liquid crystal stratum being characterized substantially throughout by said clear optical texture as a function of said second voltage between said first electrically conductive stratum and said second electrically conductive stratum; h. one of said first electrically conductive stratum and said second electrically conductive stratum being interposed between said liquid crystal stratum and said photographic stratum and being opticallly clear; i. whereby, with said first voltage, said photographic stratum constitutes means for viewing in terms of light scattered from said liquid crystal stratum and with said second voltage, said photographic stratum constitutes means for imaging in terms of light directed through said liquid crystal stratum. - View Dependent Claims (26, 27, 28, 29, 30, 31)
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32. A photographic assemblage comprising, in laminated superposition:
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a. a photographic stratum incorporating a photograph; b. a liquid crystal stratum composed of a material selected from the class consisting of nematic materials, smectic materials, cholesteric materials and mixtures thereof, exhibiting a light scattering optical texture in response to a first voltage and a clear optical texture in response to a second voltage; c. a first electrically conducting stratum and a second electrically conducting stratum having a region interposed therebetween; d. said liquid crystal stratum being within said region between said first electrically conducting stratum and said second electrically conducting stratum; e. said photographic stratum being external of said region between said first electrically conductive stratum and said second electrically conductive stratum; f. said liquid crystal stratum being characterized substantially throughout by said light scattering texture as a function of said first voltage between said first electrically conductive stratum and said second electrically conductive stratum; g. said liquid crystal stratum being characterized substantially throughout by said optically clear texture as a function of said second voltage between said first electrically conductive stratum and said second electrically conductive stratum; h. one of said first electrically conductive stratum and said second electrically conductive stratum being interposed between said liquid crystal stratum and said photographic stratum and being optically clear; i. first electrode means contacting said first electrically conducting stratum; j. second electrode means contacting said second electrically conducting stratum; k. said first electrode means and said second electrode means being accessible externally of said photographic assemblage; - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 43, 44, 45, 46, 48, 49)
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33. whereby, with said first voltage, said photographic stratum constitutes means for viewing in terms of light scattered from said liquid crystal stratum and, with said second voltage, said photographic stratum constitutes means for imaging in terms of light directed through said liquid crystal stratum.
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42. Photographic assemblage means for presenting a stack of superposed components in a photographic frame, said components comprising:
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a. photographic stratum means for optical registration in said stack and incorporating photograph means; b. liquid crystal stratum means for optical registration in said stack and composed of a material selected from the class consisting of nematic materials, smectic materials, cholesteric materials and mixtures thereof, exhibiting a light scattering optical texture in response to a first voltage condition and a light transmitting optical texture in response to a second voltage condition; c. first electrode stratum means for optical registration in said stack; d. second electrode stratum means for optical registration in said stack; e. said liquid crystal stratum means being located for operation between said first electrode stratum means and said second electrode stratum means; f. one of said first electrode stratum means and said second electrode stratum means being located for operation between said liquid crystal stratum means and said photographic stratum means and being optically clear; g. said liquid crystal stratum means constituting a background when said material thereof exhibits said light scattering optical texture and constituting a window when said material thereof exhibits said light transmitting optical texture; h. said background being constituted as a function of said first voltage condition between said first electrode stratum means and said second electrode stratum means; i. said window being constituted as a function of said second voltage condition between said first electrode stratum means and said second electrode means; j. whereby, when said liquid crystal stratum means is in said first voltage condition, said photographic stratum means establishes viewing in terms of light directed through said photographic stratum means and scattered from said liquid crystal stratum means and, when said liquid crystal stratum means is in said second voltage condition, said photographic stratum means establishes imaging in terms of light directed through said photographic stratum means and through said liquid crystal stratum means.
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47. A photographic assemblage comprising, in laminated sequence:
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a. a polymeric support stratum; b. a first electrode stratum; c. a liquid crystal stratum containing a mixture of nematic material and cholesteric material exhibiting a scattering optical texture under at least one voltage condition and a clear optical texture under at least another voltage condition; d. a second electrode stratum; e. a polymeric support stratum; and f. a photographic stratum incorporating a photograph.
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Specification