Abstract: A projection apparatus including a case, a light source module, a first dichroic mirror, and a wavelength conversion wheel is provided. The first dichroic mirror is disposed on a transmission path of a first color light provided by the light source module. The wavelength conversion wheel is disposed on a transmission path of the first color light from the first dichroic mirror, and includes a substrate. A surface of the substrate is parallel to a bottom surface of the case and is provided with a wavelength conversion area and a reflection area. The wavelength conversion area converts the first color light into a second color light and reflects the second color light to the first dichroic mirror within a first time interval. The reflection area reflects the first color light back to the first dichroic mirror within a second time interval.

Abstract: An illumination system is provided. A projection apparatus includes the illumination system. The illumination system includes a light source module and a first dichroic mirror. The light source module includes a first light source and a second light source. The first light source and the second light source respectively provide a first color light, a second color light, and a third color light. The first dichroic mirror is disposed on transmission paths of the first color light, the second color light, and the third color light. The first dichroic mirror allows the first color light and the second color light to transmit along a first direction and allows the third color light to transmit along a second direction. The first direction is perpendicular to the second direction. The disclosure achieves a reduction of the size of the projection apparatus and enhances the color saturation of the projected image.

Abstract: An illumination system and a projection apparatus are provided. The illumination system includes a light source module, a wavelength conversion device, a first light guiding assembly, a second light guiding assembly and a microlens array module. The light source module is configured to provide a plurality of green and blue laser beams. The wavelength conversion device is configured to generate a phosphor light beam. The first light guiding assembly and the second light guiding assembly are configured to respectively guide the phosphor light beam and the green laser beams. The phosphor light beam forms a phosphor light spot on a first region of a first side surface of the microlens array module. The plurality of green laser beams form a plurality of green light spots on a second region of the first side surface of the microlens array module. The first region is adjacent to the second region.

Abstract: A light source module including first and second laser arrays, first to six reflective elements, first and second light splitting elements, and an optical lens element is provided. The first laser array provides first light and second light. The second laser array provides third light and fourth light. The first light splitting element reflects the fourth light from the sixth reflective element and allows the first light from the first reflective element to pass through to the optical lens element. The second light splitting element reflects the second light from the fifth reflective element and allows the third light from the third reflective element to pass through to the optical lens element. Orthogonal projections of the first light splitting element and the second light splitting element on the optical lens element are partially overlapped.

Abstract: A light source module includes first to second laser arrays, first to fourth light guiding elements, and an optical lens element. The first laser array provides first light and second light. The second laser array provides third light and fourth light. The first to the fourth light guiding elements are located between the first and the second laser arrays. The first light guiding element is adapted to reflect the first light. The second light guiding element is adapted to reflect the second light and allowing the first light to pass through. The third light guiding element is adapted to reflect the third light. The fourth light guiding element is adapted to reflect the fourth light and allowing the third light to pass through. An orthographic projection of the second light guiding element partially overlaps an orthographic projection of the fourth light guiding element on the optical lens element.

Abstract: An illumination system providing an illumination beam includes a light source module generating first to third color beams, a light splitting and combining element, a beam expanding and collimating module, a reflecting element, and a light combining module. The first and second color beams are reflected by the light splitting and combining element after being transmitted to the light splitting and combining element. Paths of the first and second color beams leaving the light splitting and combining element are coincident. The first and second color beams from the light splitting and combining element are expanded and collimated by the beam expanding and collimating module and transmitted to the light combining module. The third color beam is reflected by the reflecting element and transmitted to the light combining module. Paths of the first to third color beams after leaving the light combining module are coincident. A projection device is provided.

Abstract: An illumination system includes first to third reflection components, a first light splitting and combining element, and a lens. The first and second reflection components reflect a first color beam and another first color beam, respectively. The third reflection element reflects a second color beam and another second color beam. The first light splitting and combining element passes the second color beams and reflects the first color beams. The first color beams and the second color beams leaving the first light splitting and combining element respectively form first and second irradiation areas not overlapped with each other and third and fourth irradiation areas not overlapped with each other on the lens, and each of the first and second irradiation areas are overlapped with at least a portion of the third and fourth irradiation areas.

Abstract: An illumination system includes first laser light sources, second laser light sources, an optical module, and a light homogenizing element. The first and second laser light sources respectively provide first and second beams. A light spot area formed when the second beams are emitted is different from that formed when the first beams are emitted. The optical module converts the first beams into spot-expanding beams which form a light spot area different from that of the first beams. The light homogenizing element includes a light incident face disposed on transmission paths of the second beams and the spot-expanding beams. A difference between light spot areas formed by the second beams and the spot-expanding beams on the light incident face is less than a difference between light spot areas formed when the second beams and the first beams are emitted. A projection apparatus having the illumination system is further disclosed.

Abstract: A beam splitter/combiner includes a first light-transmitting substrate, a first light transmission element, and a second light transmission element. The first light-transmitting substrate has a first optical surface facing incident light and a second optical surface opposite to the first optical surface. The first light transmission element is disposed on the first optical surface. The second light transmission element is disposed on the second optical surface. A first color beam incident on the first light-transmitting substrate is reflected by the first light transmission element and leaves the first light-transmitting substrate. A second color beam incident on the first light-transmitting substrate passes through the first light transmission element, is reflected by the second light transmission element, then passes through the first light transmission element, and leaves the first light-transmitting substrate.

Abstract: A light source module configured to provide a light beam along a first direction is provided. The light source module includes first to third light source groups and first to fourth beam-combining devices, wherein each of a light exiting surface of the first light source group and a light exiting surface of the third light source group is not parallel to a light exiting surface of the second light source group. An emitted light of the first light source group is transmitted along the first direction after being reflected by the first and second beam-combining devices. An emitted light of the third light source group is transmitted along the first direction after being reflected by the third and fourth beam-combining devices. An emitted light of the second light source group is transmitted along the first direction and passes through the first and third beam-combining devices.

Abstract: An illumination system includes first laser light sources, second laser light sources, an optical module, and a light homogenizing element. The first and second laser light sources respectively provide first and second beams. A light spot area formed when the second beams are emitted is different from that formed when the first beams are emitted. The optical module converts the first beams into spot-expanding beams which form a light spot area different from that of the first beams. The light homogenizing element includes a light incident face disposed on transmission paths of the second beams and the spot-expanding beams. A difference between light spot areas formed by the second beams and the spot-expanding beams on the light incident face is less than a difference between light spot areas formed when the second beams and the first beams are emitted. A projection apparatus having the illumination system is further disclosed.

Abstract: A light source module configured to provide a light beam along a first direction is provided. The light source module includes first to third light source groups and first to fourth beam-combining devices, wherein each of a light exiting surface of the first light source group and a light exiting surface of the third light source group is not parallel to a light exiting surface of the second light source group. An emitted light of the first light source group is transmitted along the first direction after being reflected by the first and second beam-combining devices. An emitted light of the third light source group is transmitted along the first direction after being reflected by the third and fourth beam-combining devices. An emitted light of the second light source group is transmitted along the first direction and passes through the first and third beam-combining devices.

Abstract: A light source module used in a projection device comprises a plurality of laser emitting elements and a light adjusting device. The laser emitting elements are configured to emit excitation beams. Each excitation beam is received by an optical system of the projection device to emit sub-beams. The light adjusting device comprises a plurality of light adjusting elements. The excitation beams penetrate through the light adjusting device and are output as output beams to be converted into illumination beams by the optical system. The light adjusting elements are disposed corresponding to at least some of the laser emitting elements with reference to the sub-beam light intensity distributions, so that the illumination beam light intensity distributions conform to a preset light intensity distribution. Furthermore, a projection device is provided and comprises at least one light source module, an optical system, at least one light valve and a projection lens.

Abstract: A light source module used in a projection device comprises a plurality of laser emitting elements and a light adjusting device. The laser emitting elements are configured to emit excitation beams. Each excitation beam is received by an optical system of the projection device to emit sub-beams. The light adjusting device comprises a plurality of light adjusting elements. The excitation beams penetrate through the light adjusting device and are output as output beams to be converted into illumination beams by the optical system. The light adjusting elements are disposed corresponding to at least some of the laser emitting elements with reference to the sub-beam light intensity distributions, so that the illumination beam light intensity distributions conform to a preset light intensity distribution. Furthermore, a projection device is provided and comprises at least one light source module, an optical system, at least one light valve and a projection lens.

Abstract: A projector and a wavelength conversion device thereof are provided. The wavelength conversion device includes a wavelength conversion element and a diffusion element. The wavelength conversion element includes a first substrate and at least one wavelength conversion layer. The at least one wavelength conversion layer is disposed on the first substrate and surrounding an axle center of the first substrate. The at least one wavelength conversion layer is configured to perform a conversion on a light beam. The diffusion element is connected to the first substrate of the wavelength conversion element and surrounding the axle center of the first substrate. The diffusion element is configured to allow another light beam to pass through.

Abstract: An illumination system includes a first light source providing a first color beam, a first beam-splitting element which disposes on a transmission path of the first color beam and separates the first color beam into a first sub-beam and a second sub-beam, an optical wavelength conversion element which receives the first sub-beam and converts the first sub-beam into a second color beam and reflects the second color beam back to the first beam-splitting element, a second light source providing a third color beam, and a second beam-splitting element which is located between the second light source and the first beam-splitting element to reflect the second sub-beam. The third color beam passes through the second beam-splitting element and is transmitted to the first beam-splitting element. The second sub-beam, the second color beam and the third color beam are combined into an illumination beam.

Abstract: The invention relates to an illumination system, which includes a first light-emitting element, a light-emitting module, a light-diffusing element, a wavelength conversion device and a light-splitting element. The first light-emitting element emits a first laser beam. The light-emitting module emits second and third laser beams. The light-diffusing element is located between the light-emitting module and the light-splitting element, and allows the second and third laser beams to pass through. The wavelength conversion device is excited by the first laser beam to emit a converting beam. The light-splitting element is disposed on transmission paths of the second and third laser beams, and disposed on a transmission path of the first laser beam and a transmission path of the converting beam The light-splitting element is configured to guide the second and third laser beams and the converting beam to an identical transmission direction. Further, a projection apparatus is also provided.

Abstract: An illumination system includes a first light source providing a first color beam, a first beam-splitting element which disposes on a transmission path of the first color beam and separates the first color beam into a first sub-beam and a second sub-beam, an optical wavelength conversion element which receives the first sub-beam and converts the first sub-beam into a second color beam and reflects the second color beam back to the first beam-splitting element, a second light source providing a third color beam, and a second beam-splitting element which is located between the second light source and the first beam-splitting element to reflect the second sub-beam. The third color beam passes through the second beam-splitting element and is transmitted to the first beam-splitting element. The second sub-beam, the second color beam and the third color beam are combined into an illumination beam.

Abstract: A projector and a wavelength conversion device thereof are provided. The wavelength conversion device includes a wavelength conversion element and a diffusion element. The wavelength conversion element includes a first substrate and at least one wavelength conversion layer. The at least one wavelength conversion layer is disposed on the first substrate and surrounding an axle center of the first substrate. The at least one wavelength conversion layer is configured to perform a conversion on a light beam. The diffusion element is connected to the first substrate of the wavelength conversion element and surrounding the axle center of the first substrate. The diffusion element is configured to allow another light beam to pass through.

Abstract: A projector includes a light source module, an optical engine, a light valve and a projecting lens. The light source module includes light sources, optical fibers and a light integration rod. Each of the light sources provides an illumination sub-beam. Each of the illumination sub-beams transmits to the light integration rod through the corresponding optical fiber, and passes through the light integration rod and emits out to form a first illumination beam. The optical engine includes a phosphor wheel located at a transmission path of the first illumination beam and converting the first illumination beam into a second illumination beam. The light valve is located at a transmission path of the second illumination beam and converts the second illumination beam into an image beam. The projecting lens is located at a transmission path of the image beam and projects the image beam out of the projector.