Abstract: The disclosure provides projection device and light source system thereof. The light source system includes a first light source, a second light source, a curved surface reflection element and a wavelength conversion element. The first light source is configured to emit a first light beam. The second light source is configured to emit a second light beam. The curved surface reflection element has a first focal point and a groove, wherein the groove is adjacent to the first focal point. The wavelength conversion element is arranged through the groove and has a first surface and a second surface, wherein the first light beam is incident on a first area of the first surface where the first focal point located, and the second light beam is incident on a second area of the second surface where the first focal point located.

Abstract: An antenna structure includes a ground element, a feeding radiation element, a first radiation element, a second radiation element, a first coupling branch, and a dielectric substrate. The feeding radiation element has a feeding point. The first radiation element is coupled to the feeding radiation element. The second radiation element is coupled to the feeding radiation element. The second radiation element and the first radiation element substantially extend in opposite directions. The first coupling branch is coupled to a first grounding point on the ground element. The first coupling branch extends across the first radiation element. The first coupling branch includes a first coil portion and a first connection portion.

Abstract: An optical lens includes a first lens, a light guide and a second lens arranged in order in a direction of an optical axis of the optical lens. The light guide has a first end and a second end opposite the first end, and an inner surface of the light guide touches at least a part of an outer edge of the second lens.

Abstract: A light source system includes a fluorescent wheel, a color wheel, at least one light reflector, and a light source module. The fluorescent wheel includes at least one fluorescent section. The color wheel includes a filter portion. The light reflector has a reflective curved surface having a first focal point and a second focal point conjugated to each other. The first focal point is located on a rotation path of the fluorescent section. The second focal point is located on a rotation path of the filter portion. The light source module is configured to emit light to the first focal point.

Abstract: An optical lens includes a first lens, a light guide and a second lens arranged in order in a direction of an optical axis of the optical lens. The light guide has a first end and a second end opposite the first end, and an inner surface of the light guide touches at least a part of an outer edge of the second lens.

Abstract: A light source system includes a fluorescent wheel, a color wheel, at least one light reflector, and a light source module. The fluorescent wheel includes at least one fluorescent section. The color wheel includes a filter portion. The light reflector has a reflective curved surface having a first focal point and a second focal point conjugated to each other. The first focal point is located on a rotation path of the fluorescent section. The second focal point is located on a rotation path of the filter portion. The light source module is configured to emit light to the first focal point.

Abstract: An illumination system includes a light source, a reflective member, a lens set and a phosphor wheel. The light source is configured to emit a first light. The reflective member is configured to reflect at least part of the first light. The lens set is configured to converge the first light reflected by the reflective member. The phosphor wheel and the reflective member are positioned on two opposite sides of the lens set. The phosphor wheel has a first section to which the first light converges. The first section is configured to provide a second light. The second light is configured to pass through the lens set to define a light passage region. The reflective member is at least partially located within the light passage region.

Abstract: A laser light source includes a laser light source module, a light converging module, first and second lens sets, a color wheel, and a light tunnel. The laser light source module emits a first light. When passing the light converging module, the first light converges in a second direction perpendicular to the travel direction of the first light and does not converge in a third direction perpendicular to the second direction and the travel direction. The first light becomes a parallel beam after passing the light converging module. Then, the first light enters the first lens set. The color wheel receives the first light passing the first lens set, partially transforms the first light into a second light, and partially reflects the first light. Then, the first and second light pass the first and second lens sets. Then, the light tunnel collects the first and second light.

Abstract: A polarization converter for use in a projector apparatus is provided. The polarization converter includes a polarizing beam splitter, a half wavelength retarder and a quarter wavelength retarder. The polarizing beam splitter could split a first light into a first light beam with a first polarized direction and a second light beam with a second polarized direction. The half wavelength retarder is disposed on the side of the polarizing beam splitter and the second light beam is converted into the second light beam with the first polarized direction by the half wavelength retarder. The first and second light beams with the first polarized direction are coupled to form a first polarized light with the first polarized direction. The quarter wavelength retarder is disposed behind the half wavelength retarder so that the first polarized light is converted into a first circularly polarized light.

Abstract: An optical module includes a curved reflecting component, a first filtering component, a second filtering component and a rolling component. The curved reflecting component has a focus, a transmissive portion, a first reflecting portion and a second reflecting portion. The rolling component includes a first transforming portion and a second transforming portion. The first waveband light is transmitted into the transmissive portion and is then transformed into a second waveband light via the first transforming portion. The second waveband light is subsequently transformed into a first emergent light. The first waveband light is transmitted into the transmissive portion and is then transformed into the second waveband light via the second transforming portion. The second waveband light is subsequently transformed into a second emergent light.

Abstract: A polarization converting element group for a projection apparatus is disclosed. The polarization converting element group includes a polarization beam splitter and a half wave plate. The polarization beam splitter splits a light beam into a first polarized light beam with a first polarization direction and a second polarized light beam with a second polarization direction. The half wave plate is placed next to the polarization beam splitter and reciprocally moves between the first and second position. At different time points, the half wave plate changes the polarization direction of the first light beam or the second light beam passing therethrough. With this arrangement, the light beam that exits the polarization converting element group will either be a uniform first polarized light with a first polarization direction or a uniform second polarized light with a second polarization direction.

Abstract: An illumination system and a projection apparatus adopting the illumination system are provided. The projection apparatus comprises the illumination system and a light modulator. The illumination system comprises at least one light source, a curved reflecting component, a phosphor wheel, a polarizer and a half wave retarder. The light provided by the at least one light source passes through the curved reflecting component and the phosphor wheel to provide a first light in a first time sequence and a second light in a second time sequence. The first light and the second light are transformed into a first polarized light and a second polarized light respectively in different time sequences by the polarizer and the half wave retarder.

Abstract: A light source device includes at least one light emitting diode, at least one dichroic mirror, a condenser, and a fly's eye device. The light emitting diode is operable to generate at least one kind of light. The dichroic mirror is disposed corresponding to the light emitting diode to combine the light into an optical path when the light passes through the dichroic mirror. The condenser is disposed corresponding to the dichroic mirror to gather the light when the light passes through the condenser. The fly's eye device is disposed corresponding to the condenser to homogenize the light when the light passes through the fly's eye device. Furthermore, a projection device is disclosed herein.

Abstract: An illumination system for use in a projector is provided. The illumination system comprises a first light source, a first timing controlling unit, a curved reflecting component and a wavelength converting component. The first light source provides a first wavelength light, while the first timing controlling unit divides the first wavelength light into a first timing portion and a second timing portion. The curved reflecting component comprises a focal point. The wavelength converting component is disposed at the focal point for converting the first timing portion of the first wavelength light into a second wavelength light.

Abstract: A dual wideband dipole antenna used for wireless communication and receiving electromagnetic signals is revealed. The antenna mainly includes a dielectric substrate, two radiating metal portions and a feed line. Each radiating metal portion consists of a metal plate, an L-shaped metal piece and a rectangular metal sheet. An initial end of the metal plate has a feeding point. The metal plate has a regulatory segment and a projecting segment. The L-shaped metal piece is between a terminal end of the metal plate and the regulatory segment. The L-shaped metal piece has a turning portion. The rectangular metal sheet is between the terminal end of the metal plate and a rear end of the regulatory segment of the other metal plate. The feed line connects the feeding points. Thus the antenna is excited to produce resonance frequencies at 0.85, 1.13, 1.68, 1.93 and 2.29 GHz and cover GSM850/900/1800/1900 bands.

Abstract: A dual wideband dipole antenna used for wireless communication and receiving electromagnetic signals is revealed. The antenna mainly includes a dielectric substrate, two radiating metal portions and a feed line. Each radiating metal portion consists of a metal plate, an L-shaped metal piece and a rectangular metal sheet. An initial end of the metal plate has a feeding point. The metal plate has a regulatory segment and a projecting segment. The L-shaped metal piece is between a terminal end of the metal plate and the regulatory segment. The L-shaped metal piece has a turning portion. The rectangular metal sheet is between the terminal end of the metal plate and a rear end of the regulatory segment of the other metal plate. The feed line connects the feeding points. Thus the antenna is excited to produce resonance frequencies at 0.85, 1.13, 1.68, 1.93 and 2.29 GHz and cover GSM850/900/1800/1900 bands.

Abstract: A light source system for a projection device and a projection device comprising the same are provided. The light source system comprises an optical component assembly and a first light source module. The first light source module has a first light emitting diode (LED) and a first reflection cover. The first LED is configured to generate beams. The first reflection cover has a curved surface to reflect and collect the beams from the first LED into the optical component assembly.

Abstract: A light source system comprising an illumination component, a color wheel and a light uniformization module is provided. The illumination component is disposed on a first axis to provide light beams. The color wheel defines a second axis to rotate thereabout, wherein the second axis is deflected from the first axis by an angle. The light beams provided from the illumination component are substantially focused at the first axis and onto the color wheel. The light uniformization module is disposed on the first axis after the color wheel to receive a portion of the light beams and uniformize the light beams to travel along the first axis.

Abstract: An illumination system and a projection apparatus adopting the illumination system are provided. The projection apparatus comprises the illumination system and a light modulator. The illumination system comprises at least one light source, a curved reflecting component, a phosphor wheel, a polarizer and a half wave retarder. The light provided by the at least one light source passes through the curved reflecting component and the phosphor wheel to provide a first light in a first time sequence and a second light in a second time sequence. The first light and the second light are transformed into a first polarized light and a second polarized light respectively in different time sequences by the polarizer and the half wave retarder.

Abstract: An optical module includes a curved reflecting component, a first filtering component, a second filtering component and a rolling component. The curved reflecting component has a focus, a transmissive portion, a first reflecting portion and a second reflecting portion. The rolling component includes a first transforming portion and a second transforming portion. The first waveband light is transmitted into the transmissive portion and is then transformed into a second waveband light via the first transforming portion. The second waveband light is subsequently transformed into a first emergent light. The first waveband light is transmitted into the transmissive portion and is then transformed into the second waveband light via the second transforming portion. The second waveband light is subsequently transformed into a second emergent light.