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US 2008/0186546 A1Published application
Replay optics for holographic displays
AssigneeF. Poszat HU, LLC
InventorDouglas PAYNE
Life of this patent
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Abstract
A holographic display comprises a spatial light modulator (SLM), a light source arranged to illuminate the SLM, and replay optics arranged to focus light reflected from the SLM to present a three dimensional image. The light source appears substantially at a zeroth order point of the replay optics, such that light from the light source is directed through the replay optics before illuminating the SLM.
Claims30
A holographic display comprising:
- a spatial light modulator (SLM);
- a light source arranged to illuminate the SLM;
- and
- replay optics arranged to focus light reflected from the SLM to present a three dimensional image, wherein the light source appears substantially at a zeroth order point of the replay optics, such that light from the light source is directed through the replay optics before illuminating the SLM.
1 more element
A computer-readable medium having instructions stored thereon, wherein when the instructions are executed by at least one device, they are operable to:
- illuminate a spatial light modulator (SLM) to form a holographic image;
- direct light from a point source, appearing to be located at a zeroth order point, through an optical replay device;
- and
- operate on the light to compensate for aberrations in the optical replay device prior to illuminating the SLM.
1 more element
A system comprising:
- a spatial light modulator (SLM) arranged to display a holographic image;
- an optical replay device arranged to focus light reflected from the SLM;
- and
- a light source arranged to illuminate the SLM with a plane wave, wherein an aberrated light source appears substantially at a de spot position of the optical replay device so as to compensate for any optical aberrations in the optical replay device before illuminating the SLM with the plane wave.
1 more element
Dependencies are inferred from the claim text.