Display system
AssigneeDualitas Ltd
InventorsJamieson Christmas, Neil Collings
Life of this patent
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Abstract
A display system includes a data provider, a spatial light modulator and a second cylindrical lens. The data provider is arranged to provide holographic data comprising first data corresponding to a first cylindrical lens having optical power in a first direction. The spatial light modulator is arranged to receive the holographic data, wherein the spatial light modulator is arranged to spatially-modulate received light in accordance with the holographic data. The second cylindrical lens is arranged to receive spatially-modulated light from the spatial light modulator and perform a one-dimensional Fourier transform of the received light in a second direction orthogonal to the first direction.
Claims25
A display system comprising:
- a data provider arranged to provide holographic data comprising first data providing a first cylindrical lens effect having optical power in a first direction and second data corresponding to an image for holographic reconstruction;
- a spatial light modulator arranged to receive the holographic data, wherein the spatial light modulator is arranged to spatially-modulate received light in accordance with the holographic data;
- and
- a second cylindrical lens arranged to receive spatially-modulated light from the spatial light modulator and perform a one-dimensional Fourier transform of the received light in a second direction orthogonal to the first direction, wherein the second cylindrical lens is a physical optic configured to focus the spatially-modulated light and zero-order light received from the spatial light modulator,
- wherein the first cylindrical lens effect and second cylindrical lens are arranged to form a two-dimensional holographic reconstruction of the image at a replay plane.
A method for displaying a two-dimensional holographic reconstruction of an image at a replay plane, the method comprising:
- providing holographic data comprising first data providing a first cylindrical lens effect having optical power in a first direction and second data corresponding to the image for holographic reconstruction;
- receiving the holographic data at a spatial light modulator arranged to receive the holographic data, and spatially-modulating light received at the spatial light modulator in accordance with the holographic data;
- and
- receiving spatially-modulated light and zero-order light from the spatial light modulator at a second cylindrical lens arranged to receive spatially-modulated light, and using the second cylindrical lens to focus and to perform a one-dimensional Fourier transform of the received light in a second direction orthogonal to the first direction, wherein the second cylindrical lens is a physical optic,
- wherein the first cylindrical lens effect and second cylindrical lens form the two-dimensional holographic reconstruction of the image at the replay plane.
Dependencies are inferred from the claim text.