Abstract: An illumination system including two light source modules, two light guiding modules, a first reflector, and a light homogenization element is provided. The two light guiding modules are respectively disposed on transmission paths of light beams generated by the two light source modules to generate two guiding light beams. One of the guiding light beams is reflected to the light homogenization element by the first reflector. The other of the guiding light beams is directly transmitted to the light homogenization element. The guiding light beams are emitted from the light homogenization element and form an illumination light beam. A projection apparatus is also provided.

Abstract: A projection apparatus including a light source module, an eccentric-collimating lens, a prism lens group, a light valve and a projection lens is provided. The light source module is configured to provide an illumination light beam. The eccentric-collimating lens is disposed between the light sources and the light valve on a transmission path of the illumination light beam. The light valve is configured to convert the illumination light beam into an image light beam. The projection lens is configured to project the image light beam out of the projection apparatus. A first included angle between a first transmission direction of the illumination light beam incident on the eccentric-collimating lens and a central axis of the eccentric-collimating lens is greater than 0. The first transmission direction and a second transmission direction of the image beam exiting from the light valve are perpendicular to each other.

Abstract: An illumination system for providing an illumination beam includes red, blue, and green light source modules, a first light combining element, and a light uniforming element. The red light source module includes a first red light emitting element emitting first red light and a second red light emitting element emitting second red light. A peak wavelength of the second red light is greater than a peak wavelength of the first red light. The blue light source module includes a first blue light emitting element emitting first blue light and a second blue light emitting element emitting second blue light. A peak wavelength of the second blue light is less than a peak wavelength of the first blue light. The green light source module generates green light. The first light combining element guides these lights into the light uniforming element, so that the illumination system outputs the illumination beam.

Abstract: An illumination system for providing an illumination beam includes red, blue, and green light source modules, a first light combining element, and a light uniforming element. The red light source module includes a first red light emitting element emitting first red light and a second red light emitting element emitting second red light. A peak wavelength of the second red light is greater than a peak wavelength of the first red light. The blue light source module includes a first blue light emitting element emitting first blue light and a second blue light emitting element emitting second blue light. A peak wavelength of the second blue light is less than a peak wavelength of the first blue light. The green light source module generates green light. The first light combining element guides these lights into the light uniforming element, so that the illumination system outputs the illumination beam.

Abstract: An illumination system and a projection device are provided. The illumination system includes an excitation light source, a wavelength conversion module and a light combining prism. The excitation light source emits an exciting light beam. The light combining prism has a first, second, and third surfaces. The exciting light beam enters the light combining prism through the first surface, and is totally reflected by the second surface to leave the light combining prism through the third surface and is transmitted to the wavelength conversion module. The exciting light beam is converted into a wavelength converted light beam by a wavelength conversion region of the wavelength conversion module or reflected by a reflecting region of the wavelength conversion module at different timings, and the wavelength converted light beam or the exciting light beam sequentially penetrates through the third surface and the second surface to leave the light combining prism.

Abstract: An illumination system including a first excitation light source, a transflective element, a wavelength conversion wheel and a filter wheel is provided. The first excitation light source emits a first excitation beam. The transflective element allows a first portion beam of the first excitation beam to pass through, and reflects a second portion beam of the first excitation beam. The wavelength conversion wheel is disposed on a transmission path of the first portion beam and includes a wavelength conversion region, and when the first portion beam irradiates onto the wavelength conversion region, the first portion beam is converted into a converted beam. The filter wheel is disposed on a transmission path of the second portion beam and the converted beam, and includes multiple filter regions, wherein the second portion beam and the converted beam irradiate onto each of the filter regions of the filter wheel.

Abstract: A light integration rod has a light incident end and a light emitting end opposite to each other. A normal vector of a light emitting cross section of the light emitting end is non-parallel to a light emitting direction of the light integration rod. The invention further provides a projection device having the light integration rod. The light integration rod and the projection device provided by the invention can reduce the defocus phenomenon of the light on the light valve, thereby improving the light utilization efficiency.

Abstract: A projector includes a light source module and an optical engine. The light source module provides an illumination beam. The optical engine includes a light valve, a projection lens, and a pixel offset device. The light valve has an active surface, and the active surface converts the illumination beam into an image beam and reflects the image beam. The projection lens projects the image beam from the projector. The pixel offset device is located between the light valve and the projection lens and includes a frame and a transparent panel, the transparent panel is disposed in the frame and includes a transparent surface, the transparent panel is disposed on the transmission path of the illumination beam and the transmission path of the image beam, the frame is configured to drive the transparent panel to vibrate, and the transparent surface is tilted with respect to the active surface.

Abstract: An illumination system and a projection device are provided. The illumination system includes an excitation light source, a wavelength conversion module and a light combining prism. The excitation light source emits an exciting light beam. The light combining prism has a first, second, and third surfaces. The exciting light beam enters the light combining prism through the first surface, and is totally reflected by the second surface to leave the light combining prism through the third surface and is transmitted to the wavelength conversion module. The exciting light beam is converted into a wavelength converted light beam by a wavelength conversion region of the wavelength conversion module or reflected by a reflecting region of the wavelength conversion module at different timings, and the wavelength converted light beam or the exciting light beam sequentially penetrates through the third surface and the second surface to leave the light combining prism.

Abstract: An illumination system including a first excitation light source, a transflective element, a wavelength conversion wheel and a filter wheel is provided. The first excitation light source emits a first excitation beam. The transflective element allows a first portion beam of the first excitation beam to pass through, and reflects a second portion beam of the first excitation beam. The wavelength conversion wheel is disposed on a transmission path of the first portion beam and includes a wavelength conversion region, and when the first portion beam irradiates onto the wavelength conversion region, the first portion beam is converted into a converted beam. The filter wheel is disposed on a transmission path of the second portion beam and the converted beam, and includes multiple filter regions, wherein the second portion beam and the converted beam irradiate onto each of the filter regions of the filter wheel.

Abstract: An illumination system including an exciting light source module, a beam splitting and combining module, a wavelength conversion component and a light filtering component is provided. The exciting light source module is adapted to emit an exciting beam. The beam splitting and combining module is disposed on a transmission path of the exciting beam. The wavelength conversion component has a first optical region and a second optical region, and the first optical region and the second optical region are sequentially cut into the transmission path of the exciting beam transmitted by the beam splitting and combining module. The light filtering component is combined with the wavelength conversion component by a common central axis, so that the wavelength conversion component and the light filtering component are adapted to rotate coaxially. The illumination system has a simpler structure and lower cost. A projection apparatus is also provided.

Abstract: A projector includes a light source module and an optical engine. The light source module provides an illumination beam. The optical engine includes a light valve, a projection lens, and a pixel offset device. The light valve has an active surface, and the active surface converts the illumination beam into an image beam and reflects the image beam. The projection lens projects the image beam from the projector. The pixel offset device is located between the light valve and the projection lens and includes a frame and a transparent panel, the transparent panel is disposed in the frame and includes a transparent surface, the transparent panel is disposed on the transmission path of the illumination beam and the transmission path of the image beam, the frame is configured to drive the transparent panel to vibrate, and the transparent surface is tilted with respect to the active surface.

Abstract: A projection apparatus including an illumination system, a light valve, an optical actuation element and a projection lens is provided. The illumination system provides an illumination beam. An image display surface of the light valve includes a first region and a second region. First pixels of the first region convert the illumination beam into first sub-image beams. Second pixels of the second region convert the illumination beam into second sub-image beams. A transmission path of one of the first sub-image beams in the optical actuation element is a first transmission path. A transmission path of one of the second sub-image beams in the optical actuation element is a second transmission path. A length of the first transmission path is smaller than a length of the second transmission path. In this way, the projection apparatus has good image quality.

Abstract: A projection apparatus including an illumination system, a light valve, an optical actuation element and a projection lens is provided. The illumination system provides an illumination beam. An image display surface of the light valve includes a first region and a second region. First pixels of the first region convert the illumination beam into first sub-image beams. Second pixels of the second region convert the illumination beam into second sub-image beams. A transmission path of one of the first sub-image beams in the optical actuation element is a first transmission path. A transmission path of one of the second sub-image beams in the optical actuation element is a second transmission path. A length of the first transmission path is smaller than a length of the second transmission path. In this way, the projection apparatus has good image quality.

Abstract: An inspecting device for a thermal module for cooling a CPU of a computer to decide whether the module can work properly is disclosed. The device includes a computer stored with preset data. A measuring unit has a heater generating heat with a predetermined temperature. A converter electrically connects the heater with the computer and converts an analogous signal corresponding to the temperature of the heater to a digital signal which is sent to the computer. A force generating mechanism is provided on the measuring unit which can generate a pressing force toward the heater. When the heater is contact with a heat-generating component contact part of the thermal module and the force generating mechanism is activated to press the part against the heater, the computer compares the data stored therein and the signal received from the converter to determine whether the thermal module can attain its required performance.

Abstract: An actuating tool for use with a ZIF socket is integrally formed and uses a rotational operation. It comprises a shaft, a positioning portion, a standoff, a driving portion and a handle. The shaft has two opposite ends and defines a rotational axis. One end thereof forms the handle and the other end thereof forms, sequentially downward, the driving portion, the standoff and the positioning portion. The positioning portion is engaged in a shaft hole defined in a printed circuit board. The driving portion defines a cam for drive a moveable component of the ZIF socket. The handle is paddle-shaped and is adapted to impart a torsional force to the shaft by a rotating operation.

Abstract: A thermal module for dissipating heat generated by a component of a computer consists of a heat sink having a top face defining a cavity exposed to a front side of the heat sink and a bottom face defining a passage fixedly receiving an end portion of a heat pipe. The other end of the heat pipe thermally connects with the heat generating component. A number of round rods are integrally formed with the heat sink and extend into the cavity. A fan mounting plate is fixed to the heat sink and has a top face defining a recession for receiving a fan therein, an opening communicating with the recession and a conduit above the round rods and in communication with the fan via the opening. The conduit has a spiral portion and a rectangular outlet. When the fan is activated, an air flow is generated and flows into the conduit via the opening.

Abstract: A heat sink assembly of the present invention comprises a conductive housing with a heat pipe and a fan fixed therein, and fixing devices. The conductive housing is formed by die-casting and comprises a base, a heat sink portion and a shielding portion which depend downwardly from the square base. The base defines a thorough channel to fix the heat pipe for dissipating heat produced by an electronic element mounted in the shielding portion, two legs of the channel being communication with the space formed by the shielding portion and the heat sink portion respectively. The shielding portion is integral with the heat sink portion and defines a peripheral side wall to form a sealed square-shaped space together with the base to provide EMI shielding for the electronic element. A hole is defined in each of the four corners of the peripheral side wall of the shielding portion to engage with the fixing devices.

Abstract: A heat dissipater for a CPU consists of a hood and a radiator. The hood has two side walls one defining a number of holes and the other forming a number of pegs. The radiator consists of a number of base plates and a number of fin plates each being interposed between two adjacent base plates. Each base plate forms a number of pegs on one side thereof and defines a number of recesses on the other side in alignment with the pegs. The pegs extend through a neighboring fin plate into recesses in a neighboring base plate thereby assembling the fin plates and the base plates together. When the radiator is mounted to the hood, the pegs in one side wall of the hood are fittingly received in the corresponding recesses of the base plate immediately adjacent to the side wall and the holes in the other side wall fittingly receive the corresponding pegs of the base plate immediately adjacent to the other side wall thereby assembling the hood and the radiator together to form the heat dissipater.