Holographic display apparatus and method
OwnerVictor Vertoprakhovinventor
Life of this patent
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Abstract
The present invention relates generally to an optical element (OE) which can serve as an optical analogue to digital converter (OADC) and/or an optical digital to analogue converter (ODAC), and uses therefor. The OE can be usefully employed in a variety of applications to transform analogue information present in a light wave front into digital light signals and/or to transform digital information into analogue information in the form of the physical parameters of a light wave front.
Claims156
An optical element having the capacity to transform information contained in a light wave front into a 1D, 2D or 3D array of light signals and/or to transform the information contained in a 1D, 2D or 3D array of light signals into a light wave front.
An optical analogue-to-digital converter comprising:
- (a) a light source for directing light to the optical element;
- (b) an optical element positioned in a receiving relationship to light emitted from the light source and having the capacity to transform information contained in a light wave front of the emitted light into a 1D, 2D or 3D array of light signals;
- and
- (c) a means for reading the array of light signals produced by the optical element.
A method of making a hologram having the capacity to transform analogue information contained in a light wave front into digital information in the form of a 1D, 2D or 3D coded array of light shapes, and/or the capacity to transform digital information in the form of a 1D, 2D or 3D coded array of light shapes into analogue information contained in a light wave front, said method comprising:
- (a) providing:
- (i) a means for forming various parameters of light;
- (ii) a means for forming a set of light codes, each code comprising one or a 1D, 2D or 3D series of light wave fronts;
- (iii) a holographic recording material located in a receiving relationship to the light wave fronts;
- (b) exposing the holographic material to a first light code;
- and
- (c) repeating step (b) using another light code from the set of light codes until every light code in the set has been recorded on the holographic recording material.
A hologram made by a process comprising:
- (a) providing:
- (i) a means for forming various parameters of light;
- (ii) a means for forming a set of light codes, each code comprising one or a 1D, 2D or 3D series of light wave fronts;
- (iii) a holographic recording material located in a receiving relationship to the light wave fronts;
- (b) exposing the holographic material to a first light code;
- and
- (c) repeating step (b) using another light code from the set of light codes until every light code in the set has been recorded on the holographic recording material.
An apparatus for determining the distance from the apparatus to an object comprising an optical element having the capacity to transform information contained in a light wave front from the object into a 1D, 2D or 3D array of light signals.
An apparatus for determining the distance from the apparatus to multiple three dimensionally arranged points on a surface comprising one or more optical elements having the capacity to transform information contained in a light wave front into a 2D or 3D array of light signals.
An optical digital-to-analogue converter comprising:
- (a) a light source comprising an array of two or more light sources;
- and
- (b) an optical element positioned in a receiving relationship to the array of two or more light sources and having the capacity to transform information contained in the array of two or more light sources into information contained in a light wave front.
A holographic display unit comprising an optical digital-to-analogue converter comprising:
- (a) a light source comprising an array of two or more light sources;
- and
- (b) an optical element positioned in a receiving relationship to array of two or more light sources and having the capacity to transform information contained in the array of two or more light sources into information contained in a light wave front.
The holographic display unit 135 wherein the laser emits light in the visible spectrum.
The holographic display unit 135 wherein the array of two or more light sources comprises a laser which emits light in the red spectrum, a laser which emits light in the green spectrum and a laser which emits light in the blue spectrum.
An optical digital decoder comprising:
- (a) a light source comprising an array of two or more light sources;
- (b) an optical element positioned in a receiving relationship to array of two or more light sources and having the capacity to transform information contained in the array of two or more light sources into an array of two or more light spots;
- and
- (c) a means for reading the array of light signals produced by the optical element.
Dependencies are inferred from the claim text.