Abstract: An illumination system including an excitation light source, a transparent substrate, a dichroic film, a first color wheel element and a light uniforming element are provided. The excitation light source emits a first color light. The first color wheel element includes a wavelength conversion material. The first color wheel element has a first side and a second side. The first color light passes through a solid structure of the transparent substrate and the dichroic film, and is transmitted to the first color wheel element and converted into a second color light by the wavelength conversion material. A first part of the second color light is transmitted towards the dichroic film, and is reflected back to the first color wheel element by the dichroic film to enter the light uniforming element. A second part of the second color light passes through the first color wheel element to enter the light uniforming element.

Abstract: A projector includes an illumination system, an optical engine module and a projection lens. The illumination system includes an excitation light source group, a wavelength conversion element and a light combining element. A first light emitting element provides a first beam. The wavelength conversion element has a reflective area and a wavelength conversion area, which cut into the transmission path of the first beam by turns. The light combining element is disposed between the excitation light source group and the wavelength conversion element and has at least one first dichroic portion, at least one first reflective portion, and a first light combining surface facing the first light emitting element. The first dichroic portion and the first reflective portion correspond to the first and the third quadrant of the first light combining surface respectively. The projector and the illumination system have the advantages of lower cost and smaller size.

Abstract: An illumination system including a first light-emitting module, a wavelength conversion unit, and a spherical-shell-shaped dichroic film is provided. The first light-emitting module emits a first color light including a first partial light and a second partial light. The first partial light is converged to the wavelength conversion unit, the second partial light passes by a location beside the wavelength conversion unit, and the wavelength conversion unit converts the first partial light into a converted light, where a wavelength of the converted light is greater than a wavelength of the first color light. The spherical-shell-shaped dichroic film is pervious to the at least one first color light, and reflects the converted light, where the converted light coming from the wavelength conversion unit is reflected by the spherical-shell-shaped dichroic film, and at least partially coincides with the second partial light. A projection apparatus is also provided.

Abstract: A projector includes an illumination system, an optical engine module and a projection lens. The illumination system includes an excitation light source group, a wavelength conversion element and a light combining element. A first light emitting element provides a first beam. The wavelength conversion element has a reflective area and a wavelength conversion area, which cut into the transmission path of the first beam by turns. The light combining element is disposed between the excitation light source group and the wavelength conversion element and has at least one first dichroic portion, at least one first reflective portion, and a first light combining surface facing the first light emitting element. The first dichroic portion and the first reflective portion correspond to the first and the third quadrant of the first light combining surface respectively. The projector and the illumination system have the advantages of lower cost and smaller size.

Abstract: An illumination system includes an excitation light source, a lens group, a dichroic device and a phosphor wheel. The lens group has an optical axis and a light flux cross-section is perpendicular to the optical axis. The dichroic device includes a dichroic layer for reflecting the excitation beam to the lens group and projecting an overlapping region on the light flux cross-section in a direction of the optical axis. The optical axis does not pass through the overlapping region, and the overlapping region has an area ranged between the ¼ and ½ area of the light flux cross-section. The phosphor wheel receives the excitation beam and has a reflective region and a phosphor region. A projector including the illumination system is also provided.

Abstract: A projector and its illumination system and wavelength conversion device are provided. The wavelength conversion device includes a substrate, a wavelength converting portion, and a wavelength maintaining portion. The substrate has a rotation axis. The wavelength converting portion surrounds the rotation axis and is adapted to receive the first beam and convert a first portion of the first beam into a second beam. The wavelength maintaining portion surrounds the rotation axis and is adapted to receive the first beam and guide a second portion of the first beam. A ratio of the first portion of the first beam with respect to the first beam is greater than a ratio of the second portion of the first beam with respect to the first beam. The illumination system and the wavelength conversion device in the projector reduce the number of optical elements, thereby reducing the cost and the size of the projector.

Abstract: A light source module and a projection device including the same are provided. A wavelength conversion device of the light source module has at least one wavelength conversion area for converting a blue beam provided by a blue light source into a converted beam, and the converted beam is transmitted to a wavelength selection element so that a first green beam is obtained by the wavelength selection element from at least a portion of the converted beam. According to the blue light source, a red light source, the wavelength conversion device and the wavelength selection element, the light source module provides an illumination beam corresponding to a first display mode or a second display mode.

Abstract: A wavelength conversion filter module and an illumination system are provided. The wavelength conversion filter module includes a carrier and a wavelength conversion filter unit. The wavelength conversion filter unit is located in a wavelength conversion filter region of the carrier, and the wavelength conversion filter unit includes a filter reflective device, a wavelength conversion device, and a first filter device disposed on the carrier in order. The first filter device is suitable for allowing the excitation beam to pass through. The wavelength conversion device is suitable for converting the excitation beam into a conversion beam. The conversion beam includes a specific color beam and a color beam other than the specific color beam. The filter reflective device is suitable for reflecting the specific color beam and absorbing the color beam other than the specific color beam. The reflected specific color beam passes through the first filter device.

Abstract: An illumination system includes a lens group having an optical axis and a light flux cross-section perpendicular to the optical axis, a dichroic device including first and second dichroic layers, first and second excitation light sources and a phosphor wheel. The first and second dichroic layers reflect first and second excitation beams to the lens group respectively. A projection region collectively formed by projecting the first dichroic layer and the second dichroic layer on the light flux cross-section in a direction parallel to the optical axis is larger than a ¼ area of the light flux cross-section and smaller than a ½ area of the light flux cross-section. The phosphor wheel receives the first and second excitation beams passing through the lens group and has a reflective region and at least one phosphor region.

Abstract: An illumination system includes an excitation light source, a lens group, a dichroic device and a phosphor wheel. The lens group has an optical axis and a light flux cross-section is perpendicular to the optical axis. The dichroic device includes a dichroic layer for reflecting the excitation beam to the lens group and projecting an overlapping region on the light flux cross-section in a direction of the optical axis. The optical axis does not pass through the overlapping region, and the overlapping region has an area ranged between the ¼ and ½ area of the light flux cross-section. The phosphor wheel receives the excitation beam and has a reflective region and a phosphor region. A projector including the illumination system is also provided.

Abstract: A projector and an illumination system thereof are provided. The illumination system includes an excitation light source group, a phosphor wheel, a light combiner element and a first lens group. The excitation light source group provides a first beam and has a first optical axis. The phosphor wheel has a reflection region and a wavelength conversion region. The light combiner element is disposed between the excitation light source group and the phosphor wheel and has a dichroic portion and a reflection portion. The first lens group is disposed between the light combiner element and the phosphor wheel. The first lens group has a second optical axis. The illumination system is provided in the projector to reduce the number of optical elements, thereby reducing the cost and volume.

Abstract: The invention discloses a light source module, a projection device and driving methods thereof, wherein a wavelength conversion device of the light source module has at least one wavelength conversion area for converting a blue beam provided by a blue light source into a converted beam, and the converted beam is transmitted to a wavelength selection element so that a first green beam is obtained by the wavelength selection element from at least a portion of the converted beam. According to the blue light source, a red light source, the wavelength conversion device and the wavelength selection element, the light source module provides an illumination beam corresponding to a first display mode or a second display mode.

Abstract: A touch and gesture control system including a light curtain module, an invisible light lighting module, an image capturing module and a control unit is provided. The light curtain module is configured to form a touch zone. The invisible light lighting module is configured to form a gesture control zone. The touch zone and the gesture control zone are at least partially overlapped. The control unit is electrically connected to the light curtain module, the image capturing module and the invisible light lighting module. The control unit turns on the light curtain module and controls the image capturing module to capture a first set of images when executing a touch mode, and turns on the invisible light lighting module and controls the image capturing module to capture a second set of images when executing a gesture control mode. A touch and gesture control method is also provided.

Abstract: An illumination system includes a coherent light source, a first light-combining device, an optical wavelength conversion module, and a first auxiliary light source. The coherent light source emits a coherent light beam. The first light-combining device is disposed on a transmission path of the coherent light beam. The light wavelength conversion module is disposed on a transmission path of the coherent light beam transmitted from the first light-combining device and converts the coherent light beam into a first converted light beam, and reflects the first converted light beam back to the first light-combining device. The first auxiliary light source emits a first auxiliary light beam which is transmitted to the first light-combining device. The first light-combining device combines the first auxiliary light beam and the first converted light beam. A projection apparatus and a method for driving the illumination system are 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: The invention discloses a light source module, a projection device and driving methods thereof, wherein a wavelength conversion device of the light source module has at least one wavelength conversion area for converting a blue beam provided by a blue light source into a converted beam, and the converted beam is transmitted to a wavelength selection element so that a first green beam is obtained by the wavelength selection element from at least a portion of the converted beam. According to the blue light source, a red light source, the wavelength conversion device and the wavelength selection element, the light source module provides an illumination beam corresponding to a first display mode or a second display mode.

Abstract: A light source module and a projection apparatus are provided. The light source module includes a blue light source, a red light source, a wavelength conversion wheel and a filter wheel. The blue light source provides a blue light beam. The red light source provides a red light beam. The wavelength conversion wheel is disposed on a transmission path of the blue light beam and has a wavelength conversion region and a transparent region. The blue light beam passes through the transparent region. The blue light beam is converted into a green light beam by the wavelength conversion region, so as to generate the green light beam. The filter wheel is disposed on transmission paths of the blue light beam and the red light beam and includes a filter region and a diffusion region. A filter spectrum of the filter region includes a first bandwidth that allows the green light beam to pass through and a second bandwidth that allows a red light beam to pass through.

Abstract: An illumination system including an excitation light source module configured to emit an excitation beam, a wavelength conversion device, and a light-splitting unit on a transmission path of the excitation beam and between the excitation light source module and the wavelength conversion device is provided. The light-splitting unit includes a transparent substrate and a first optical film with a hole through which the excitation beam is transmitted to the wavelength conversion device. A wavelength conversion area and a diffusion area of the wavelength conversion device cut into the transmission path by turns. The wavelength conversion area converts the excitation beam into a conversion beam transmitted to the light-splitting unit. The diffusion area reflects the excitation beam to the light-splitting unit; the first optical film reflects the excitation beam coming from the diffusion area. Wavelengths of the conversion beam and excitation beam are different. A projection apparatus is also provided.

Abstract: An illumination system including a first laser light source, a diffusion sheet and a light integration rod is provided. The first laser light source is configured to generate a first laser beam. The diffusion sheet is located on a transmission path of the first laser beam. The light integration rod has a light entering surface and a light exiting surface. The diffusion sheet is located between the first laser light source and the light integration rod. The first laser beam from the diffusion sheet enters the light integration rod through the light entering surface and exits the light integration rod through the light exiting surface. The light integration rod is adapted to convert the first laser beam to an illumination beam. The area of the light entering surface is larger than the area of the light exiting surface. A projection apparatus is also provided.

Abstract: An illumination system including a first laser light source, a diffusion sheet and a light integration rod is provided. The first laser light source is configured to generate a first laser beam. The diffusion sheet is located on a transmission path of the first laser beam. The light integration rod has a light entering surface and a light exiting surface. The diffusion sheet is located between the first laser light source and the light integration rod. The first laser beam from the diffusion sheet enters the light integration rod through the light entering surface and exits the light integration rod through the light exiting surface. The light integration rod is adapted to convert the first laser beam to an illumination beam. The area of the light entering surface is larger than the area of the light exiting surface. A projection apparatus is also provided.