Abstract: An optical lens assembly includes a lens barrel and an optical lens group. The lens barrel includes a light entering hole, which is configured for allowing a light to enter the lens barrel. The lens barrel accommodates the optical lens group, and an optical axis passes through the optical lens group. The optical lens group includes a plurality of lens elements and at least one light blocking sheet. The light blocking sheet is an opaque sheet-shaped element and surrounds the optical axis to form a light passing hole. The light blocking sheet includes an object-side surface and an image-side surface, and the object-side surface is located more adjacent to the light entering hole than the image-side surface thereto. A first film layer is disposed on the object-side surface.

Abstract: A projection apparatus includes an illumination system configured to output an illumination beam, a light valve and a projection lens. The illumination system includes a laser light source configured to emit a laser beam and a wavelength conversion element. A first region of the wavelength conversion element includes at least one first and second optical function region. In a first sub-time interval, the first optical functional region guides the laser beam to a first position with a first optical path, wherein the light valve is located at the first position. In the second sub-time interval, the second optical functional region guides the laser beam to a second position with a second optical path, wherein the second position is different from the first position. The projection apparatus of the present invention has good image quality.

Abstract: A temperature control system, adapted to a central processing unit powered by a power supply module of an electronic device, is provided. The temperature control system includes a setting module, a first temperature detecting module, a second temperature detecting module, and a power adjusting module. The setting module is configured to set a target temperature of the CPU and a target temperature of the power supply module. The first temperature detecting module is configured to obtain a detected temperature of the CPU. The second temperature detecting module is electrically connected to the power supply module, to obtain a detected temperature of the power supply module.

Abstract: A projection apparatus and an illumination system that includes an excitation light source, a beam filter module, a wavelength conversion module and a homogenizing element are provided. The beam filter module includes a light effective region and is disposed on a transmission path of an excitation beam. The wavelength conversion module includes a wavelength conversion region and is disposed on a transmission path of the excitation beam reflected by the light effective region. The wavelength conversion region converts the excitation beam into a conversion beam. The conversion beam from the wavelength conversion module passes through the light effective region and then forms at least one color light. An optical axis of the excitation beam incident on the light effective region and a normal line of the light effective region are respectively not parallel to a central axis of the homogenizing element.

Abstract: An optical reflecting assembly includes a reflective member, a reflective element holder and a structure component. The reflective member includes a reflective surface for folding a light. The reflective element holder includes an assembling surface correspondingly disposed to the reflective member. The structure component is made of a metal material and has a three-dimensional structure, at least one portion of the structure component is inserted in the reflective element holder, and the structure component includes a first supporting wall, a second supporting wall and at least one extending wall. The first supporting wall and the second supporting wall are bent to form a first bending line with an angle. The extending wall and the second supporting wall are bent to form an extending bending line being a non-closed line.

Abstract: The disclosure provides an optical system, an optical sensing unit and an optical sensing module. The optical system is used for forming a plurality of light spots on a plurality of photosensitive regions separated from each other. The optical system includes: a lens for receiving a first light beam and converging the first light beam; a first light-transmitting layer located under the lens, for refracting the converged first light beam into a plurality of second light beams, the plurality of second light beams being used for forming the plurality of light spots on the photosensitive regions, wherein each light spot in the plurality of light spots covers a part of the plurality of photosensitive regions; and a second light-transmitting layer located under the first light-transmitting layer, wherein the plurality of second light beams are respectively incident on the plurality of photosensitive regions through the second light-transmitting layer.

Abstract: An optical lens assembly includes a glass lens element. The glass lens element has a refractive power, an optical surface of the glass lens element is non-planar, an anti-reflective membrane layer is formed on the optical surface, and the anti-reflective membrane layer includes a nanostructure layer and a structure connection film. The nanostructure layer has a plurality of ridge-like protrusions extending non-directionally from the optical surface, and a material of the nanostructure layer includes aluminum oxide. The structure connection film is disposed between the optical surface and the nanostructure layer, the structure connection film includes at least one silicon dioxide layer, the at least one silicon dioxide layer contacts a bottom of the nanostructure layer physically, and a thickness of the at least one silicon dioxide layer is greater than or equal to 20 nm and less than or equal to 150 nm.

Abstract: The present disclosure provides an optical lens module. By assembling a first lens barrel, an optical folding element and a second lens barrel, the optical lens module can be miniaturized, image quality of the optical lens module in a compact assembly space can be increased, and the size of a light passage opening of a display panel module can be reduced so as to increase consistency of a display area.

Abstract: An imaging lens assembly includes an imaging lens element assembly, and an optical axis passes through the imaging lens assembly. The imaging lens element assembly includes a plurality of lens elements, and the lens elements includes a first lens element and a second lens element, wherein a refractive index of the first lens element is different from a refractive index of the second lens element. Each of the first lens element and the second lens element includes at least one nanostructure layer and at least one structure connection film. The nanostructure layer is irregularly arranged, the nanostructure layer includes an alumina crystal. The structure connection film is disposed between a surface of the first lens element and the nanostructure layer and between a surface of the second lens element and the nanostructure layer.

Abstract: An illumination system includes a light source, a wavelength conversion element and a light guide column. The light source provides an excitation beam. The wavelength conversion element has a wavelength conversion portion for converting the excitation beam into a converted beam. The light guide column is disposed between the light source and the wavelength conversion element and located on a transmission path of the excitation beam. The light guide column has a first end, a second end opposite to the first end, a third end and a fourth end opposite to the third end. The third and fourth ends respectively face the light source and the wavelength conversion element. The third end receives the excitation beam. The excitation beam exits the first or fourth end, and the converted beam enters the light guide column through the fourth end and exits the first end. A projection device is also provided.

Abstract: An illumination system, including a light source, a reflective optical element, a polarization conversion element, a beam splitting element, and a homogenizing element, is provided. The light source provides a first light beam having a first polarization state and a second light beam having a second polarization state. The reflective optical element is disposed on a transmission path of the first light beam and the second light beam. The polarization conversion element is disposed between the light source and the reflective optical element. The beam splitting element is disposed between the light source and the polarization conversion element. The beam splitting element includes at least one first region and at least one second region. The homogenizing element is disposed on a transmission path of a light beam reflected by the beam splitting element. A projection device having the illumination system is also provided.

Abstract: A light blocking sheet includes a central opening and a plurality of light blocking structures. A central axis passes through the central opening. The light blocking structures surround an inner peripheral surface of the central opening, the light blocking structures are tapered and extended from the central opening towards a direction close to the central axis, and the light blocking structures are for defining a circumscribed circle and an inscribed circle, wherein a plurality of inscribed circle ends of the light blocking structures close to the central axis are contacted with the inscribed circle, and a plurality of circumscribed circle ends of the light blocking structures away from the central axis are contacted with the circumscribed circle.

Abstract: The present disclosure provides an imaging lens assembly module including a baseplate and an imaging lens assembly. The imaging lens assembly includes an imaging lens set and a barrel. The imaging lens set includes at least one lens element. The at least one lens element includes two first trimmed surfaces. The barrel includes a barrel portion and a base portion. The barrel portion has a first inner surface, and the barrel portion includes two second trimmed surfaces. The barrel portion and the base portion are formed integrally, a shortest distance is defined between the first trimmed surfaces of the lens element, a shortest distance is defined between the second trimmed surfaces of the barrel portion, and the optical axis passes vertically through the shortest distance between the first trimmed surfaces and the shortest distance between the second trimmed surfaces.

Abstract: An illumination system and a projection apparatus are provided. The illumination system includes a coherent light source, an optical module, and a first light-diffusing device. The coherent light source emits a coherent light beam. The optical module and the first light-diffusing device are located on a transmission path of the coherent light beam. The optical module has an optical surface and a light-diffusing surface, and the coherent light beam focuses on a first position through the optical surface of the optical module. The first light-diffusing device is located at the first position or in vicinity of the first position. The coherent light beam passes through the first light-diffusing device so that a diffusion angle of the coherent light beam is sequentially changed. A display frame exhibiting a uniform luminance is thereby provided by the illumination system and the projection apparatus of the invention.

Abstract: An illumination system and a projection device are provided. The illumination system includes a laser light source, a light splitting element, a wavelength conversion module, a filter module, and a homogenizing element. The laser light source provides a laser beam to the light splitting element. The filter module rotates around a rotation axis and has multiple dichroic filter regions on a surface perpendicular to the rotation axis. The filter module receives the laser beam from the light splitting element, and an acute angle is formed between the rotation axis and a direction in which the laser beam enters the filter module. The homogenizing element is located on a transmission path of the laser beam penetrating the filter module, and the laser beam enters the homogenizing element along a long axis direction of the homogenizing element.

Abstract: An illumination system including an excitation light source, a wavelength converting element, and a region-based light splitter is provided. The excitation light source provides an excitation beam. The wavelength converting element is disposed on a transmission path of the excitation beam to convert the excitation beam into an excited beam. The region-based light splitter is disposed on the transmission path of the excitation beam and includes at least one first region and at least one second region. The first region reflects the excitation beam and allows the excited beam to pass through. The second region allows the excitation beam and the excited beam to pass through. The excitation beam reflected by the region-based light splitter is transmitted toward the wavelength converting element. A projection apparatus including the illumination system is also provided.

Abstract: The disclosure provides an illumination system and a projection device applying the illumination system. The illumination system includes a laser light source, a wavelength conversion module, and a spot region modulation module configured to shift a transmission path of a laser beam. When the wavelength conversion module rotates, the spot region modulation module moves, in a first period of time, the laser beam in a wavelength conversion region of the wavelength conversion module along a first shift path, so that the laser beam forms a first spot region in an irradiation region in the wavelength conversion region. The spot region modulation module causes, in a second period of time, the laser beam to form a second spot region in an irradiation region in a non-conversion region of the wavelength conversion module. A size of the first spot region is greater than a size of the second spot region.

Abstract: An image sensing device including an image sensor, a color filtering unit set, and a light deflecting unit set is provided. The image sensor has a plurality of sub-pixels arranged in an array. The color filtering unit set is disposed above the image sensor, and has a plurality of first filter units and a plurality of second filter units. A central transmitting wavelength of the first filter units is greater than a central transmitting wavelength of the second filter units. The light deflecting unit set is disposed between the color filtering unit set and the image sensor, and has a plurality of first light deflecting units. A refractive index of the first light deflecting units is greater than a refractive index of a medium between the second filter units and a plurality of corresponding sub-pixels. A manufacturing method of an image sensing device is also provided.

Abstract: A homogenizing module and a projection apparatus are provided. The homogenizing module is configured to homogenize a beam and includes an anisotropic diffuser and a homogenizer. The anisotropic diffuser is located on a transmission path of the beam. The beam has a first divergence angle in a first direction and a second divergence angle in a second direction after passing through the anisotropic diffuser. The first divergence angle is greater than the second divergence angle. The homogenizer is located on a transmission path of the beam from the anisotropic diffuser, and the homogenizer includes multiple optical elements. The size of any of the multiple optical elements in the first direction is greater than the size thereof in the second direction. The first direction is perpendicular to the second direction.

Abstract: An illumination system for providing an illumination light beam is provided, which includes a light-source module, a scattering element and a light uniforming element. The light-source module emits an illumination light beam. The scattering element is between the light-source module and the light uniforming element, and has multiple scattering areas with different haze values. A haze value of a first scattering area that is close to a center of the scattering element is greater than a haze value of a second scattering area that is remote from the center. A projection device is also provided. A scattering element of the invention has multiple scattering areas with different haze values, and a haze value of one that is close to a center of the scattering element is greater than a haze value of the other that is remote from the center, thereby increasing light energy utilization.