Complex spatial light modulator and 3d image display including the same
AssigneesKorea University Research and Business Foundation, Samsung Electronics Co., Ltd.
InventorsGee-young SUNG, Hwi KIM, Hoon SONG, Kang-hee WON, Hong-seok LEE
Life of this patent
Estimating the term…
Abstract
A complex spatial light modulator and a three-dimensional (3D) image display apparatus including the complex spatial light modulator are provided. The complex spatial light modulator includes: a spatial light modulator that modulates a phase of light; a prism array including a plurality of prism units, each of the plurality of prism units including a first prism surface and second prism surface, where light from the spatial light modulator is incident on the prism array; and a polarization-independent diffracting element that diffracts light that has passed through the prism array.
Claims20
A complex spatial light modulator comprising:
- a spatial light modulator that modulates a phase of light transmitted therethrough;
- a prism array comprising a plurality of prism units, each of the plurality of prism units comprising a first prism surface and second prism surface, wherein light transmitted through the spatial light modulator is incident on the prism array;
- and
- a polarization-independent diffracting element that diffracts light that has passed through the prism array.
A three-dimensional (3D) image display apparatus comprising:
- a light source unit that emits light;
- an image signal circuit unit that inputs an image signal to a spatial light modulator
- the spatial light modulator that modulates a phase of the light emitted from the light source unit, based on the image signal;
- and
- a beam combiner that modulates a phase and an amplitude of light emitted from the spatial light modulator,
- wherein the beam combiner comprises:
- a prism array comprising a plurality of prism units, each of the prism units comprising a first prism surface and second prism surface, wherein light emitted from the spatial light modulator is incident on the prism array;
- and
- a polarization-independent diffracting element that diffracts light that has passed through the prism array.
A complex spatial light modulator comprising:
- a spatial light modulator that modulates a phase of light transmitted therethrough;
- a prism array comprising an array of a plurality of prism units, wherein light from the spatial light modulator is incident on the prism array;
- and
- a semiconductor diffracting element comprising an array of protrusions and grooves, wherein, for each of the plurality of prism units, the diffracting element combines light transmitted through a first prism surface and light transmitted through a second prism surface to travel on a single optical axis.
A three-dimensional (3D) image display apparatus, comprising:
- a light source unit that emits light;
- a spatial light modulator that modulates a phase of light transmitted therethrough;
- a prism array comprising an array of a plurality of prism units, wherein light from the spatial light modulator is incident on the prism array;
- and
- a semiconductor diffracting element comprising an array of protrusions and grooves, wherein, for each of the plurality of prism units, the diffracting element combines light transmitted through a first prism surface and light transmitted through a second prism surface to travel on a single optical axis.
Dependencies are inferred from the claim text.