Projection apparatus with illumination system having plurality of laser modules
AssigneeCoretronic Corporation
InventorsHung-Wei Liu, Chien-Chung Liao
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Abstract
A projection apparatus including a projection lens, a light valve module, and an illumination system optically coupled to produce an image beam is provided. The illumination system further includes a plurality of first laser source modules adapted to emit a plurality of first laser beams, and a diffusion component disposed on transmission paths of the plurality of first laser beams, such that the plurality of first laser beams form a plurality of light spots at a plurality of locations on the diffusion component.
Claims23
An illumination system, wherein the illumination system comprises a plurality of first laser source modules and a diffusion component, wherein:
- the plurality of first laser source modules are adapted to emit a plurality of first laser beams;
- and
- the diffusion component is disposed on transmission paths of the plurality of first laser beams for reducing speckle phenomenon of the first laser beams, wherein the plurality of first laser beams form a plurality of light spots at a plurality of locations on the diffusion component, and the diffusion component comprises a central axis and a rotatable disk-shaped component rotating around the central axis.
A projection apparatus, wherein the projection apparatus comprises an illumination system, a light valve module, and a projection lens, wherein:
- the illumination system is adapted to emit an illumination beam, and the illumination system comprises a plurality of first laser source modules and a diffusion component, wherein:
- the plurality of first laser source modules are adapted to emit a plurality of first laser beams;
- and
- the diffusion component is disposed on transmission paths of the plurality of first laser beams for reducing speckle phenomenon of the first laser beams, wherein the plurality of first laser beams form a plurality of light spots at a plurality of locations on the diffusion component, wherein the diffusion component comprises a central axis and a rotatable disk-shaped component rotating around the central axis;
- the light valve module is disposed on a transmission path of the illumination beam to modulate the illumination beam into an image beam;
- and
- the projection lens is disposed on a transmission path of the image beam.
An illumination system, comprising:
- a plurality of first laser source modules, adapted to emit a plurality of first laser beams;
- a diffusion component, disposed on transmission paths of the plurality of first laser beams, wherein the plurality of first laser beams form a plurality of light spots at a plurality of locations on the diffusion component;
- a second laser source module, adapted to emit a second laser beam;
- and
- a wavelength conversion component, disposed on a transmission path of the second laser beam, wherein the wavelength conversion component is adapted to convert the second laser beam into a converted beam.
A projection apparatus, wherein the projection apparatus comprises an illumination system, a light valve module, and a projection lens, wherein:
- the illumination system is adapted to emit an illumination beam, and the illumination system comprises a plurality of first laser source modules and a diffusion component, wherein:
- the plurality of first laser source modules are adapted to emit a plurality of first laser beams;
- and
- the diffusion component is disposed on transmission paths of the plurality of first laser beams, wherein the plurality of first laser beams form a plurality of light spots at a plurality of locations on the diffusion component;
- the light valve module is disposed on a transmission path of the illumination beam to modulate the illumination beam into an image beam;
- and
- the projection lens is disposed on a transmission path of the image beam,
- wherein the illumination system further comprises:
- a second laser source module, adapted to emit a second laser beam;
- and
- a wavelength conversion component, disposed on a transmission path of the second laser beam, wherein the wavelength conversion component is adapted to convert the second laser beam into a converted beam.
An illumination system, wherein the illumination system comprises a plurality of first laser source modules and a diffusion component, wherein:
- the plurality of first laser source modules are adapted to emit a plurality of first laser beams;
- and
- the diffusion component is disposed on transmission paths of the plurality of first laser beams, wherein the plurality of first laser beams form a plurality of light spots at a plurality of locations on the diffusion component,
- wherein the diffusion component has a central axis, and the diffusion component is adapted to rotate around the central axis.
A projection apparatus, wherein the projection apparatus comprises an illumination system, a light valve module, and a projection lens, wherein:
- the illumination system is adapted to emit an illumination beam, and the illumination system comprises a plurality of first laser source modules and a diffusion component, wherein:
- the plurality of first laser source modules are adapted to emit a plurality of first laser beams;
- and
- the diffusion component is disposed on transmission paths of the plurality of first laser beams, wherein the plurality of first laser beams form a plurality of light spots at a plurality of locations on the diffusion component;
- the light valve module is disposed on a transmission path of the illumination beam to modulate the illumination beam into an image beam;
- and
- the projection lens is disposed on a transmission path of the image beam,
- wherein the diffusion component has a central axis, and the diffusion component is adapted to rotate around the central axis.
Dependencies are inferred from the claim text.