Abstract: A digital micro-mirror unit is arranged on a circuit board. A digital micro-mirror device mask surroundingly covers the digital micro-mirror unit. A thermo-insulation element is arranged between the digital micro-mirror unit and the digital micro-mirror device mask. The digital micro-mirror unit is thermally insulated against the digital micro-mirror device mask through the thermos-insulation element. A thermoelectric cooler (TEC) is thermally connected to the digital micro-mirror unit. A thermo-conductive body is attached on the hot side of the TEC. Therefore the digital micro-mirror unit can meet temperature requirements of safety standards and avoid reducing its service life.

Abstract: A heat-dissipation assembly is used to dissipate heat of a heat source. The heat-dissipation assembly includes a thermally conductive structure, a thermoelectric cooler, and a temperature sensor. The thermally conductive structure includes a main body and a protruding portion. The main body has a first surface and a second surface respectively located at opposite sides of the main body. The protruding portion is connected to the first surface and configured to be thermally connected to the heat source. The thermoelectric cooler is thermally connected to the second surface. The temperature sensor is thermally connected to the first surface. An orthographic projection of the thermoelectric cooler on the first surface covers at least a part of the temperature sensor.

Abstract: A digital micromirror device projector is provided. The digital micromirror device projector includes a digital micromirror device chip, a heat conductive member, a thermo-electric cooler unit and a thermal insulator. The heat conductive member includes a heat conductive plate and a heat conductive protrusion. The heat conductive plate includes a first surface and a second surface, wherein the first surface is opposite to the second surface. The heat conductive protrusion is formed on the first surface. The heat conductive protrusion is thermally connected to the digital micromirror device chip by conduction. The thermo-electric cooler unit includes a cool side and a hot side, wherein the cool side is connected to the second surface. The thermal insulator is attached to the first surface. The thermal insulator surrounds the heat conductive protrusion.

Abstract: A color wheel rotation speed detecting module is disclosed and includes a color wheel, a motor, a rotation speed detector and a processor. The color wheel includes a first segment and at least one second segment. The motor drives the color wheel to rotate. The rotation speed detector includes an emitter and a receiver. The emitter outputs a light signal to the first segment or the second segment of the color wheel when the color wheel is rotated. When the receiver receives the light signal reflected from the second segment, the receiver outputs a detecting signal correspondingly. When the light signal passes through the first segment and the receiver fails to receive the light signal, the receiver interrupts the output of the detecting signal. The processor receives the detecting signal from the receiver, and obtains the rotating speed of the color wheel according to the detecting signal varied with time.

Abstract: A solar energy collecting system includes a substrate and at least one solar chip. The substrate includes a first surface, a second surface and a plurality of lateral surfaces, wherein the first surface faces the second surface, the lateral surfaces are adjacent to the first and second surfaces, and a first micro structure is formed on the first or the second surface. The solar chip is near one of the lateral surfaces. Solar light penetrates the first and the second surface and is refracted or reflected by the first micro structure to leave the substrate via the lateral surface and be absorbed by the solar chip.

Abstract: A color wheel rotation speed detecting module is disclosed and includes a color wheel, a motor, a rotation speed detector and a processor. The color wheel includes a first segment and at least one second segment. The motor drives the color wheel to rotate. The rotation speed detector includes an emitter and a receiver. The emitter outputs a light signal to the first segment or the second segment of the color wheel when the color wheel is rotated. When the receiver receives the light signal reflected from the second segment, the receiver outputs a detecting signal correspondingly. When the light signal passes through the first segment and the receiver fails to receive the light signal, the receiver interrupts the output of the detecting signal. The processor receives the detecting signal from the receiver, and obtains the rotating speed of the color wheel according to the detecting signal varied with time.

Abstract: A focusing solar light guide module includes a lens array plate and a light guide plate. The lens array plate includes at least one lens. Each lens receiving and focusing a sunlight has an upper curved surface and a lower plane surface. The light guide plate has an upper plane surface parallel to the lower plane surface of the lens array plate and a lower microstructure surface. The lower microstructure surface includes at least one depressed area and at least one connection area parallel to the upper plane surface of the light guide plate. The connection area is connected between the adjacent depressed areas having a depressed point, a first inclined plane and a second inclined plane. The first inclined plane and the second inclined plane are respectively connected between the depressed point and the adjacent connection area.

Abstract: A focusing solar light guide module includes a lens array plate and a light guide plate. The lens array plate includes at least one lens. Each lens receiving and focusing a sunlight has an upper curved surface and a lower plane surface. The light guide plate has an upper plane surface parallel to the lower plane surface of the lens array plate and a lower microstructure surface. The lower microstructure surface includes at least one depressed area and at least one connection area parallel to the upper plane surface of the light guide plate. The connection area is connected between the adjacent depressed areas having a depressed point, a first inclined plane and a second inclined plane. The first inclined plane and the second inclined plane are respectively connected between the depressed point and the adjacent connection area.

Abstract: A rotatable-type liquid-cooled heat sink and a disposition method for the same are provided. The liquid-cooled heat sink is disposed in a three-dimensional space and includes a pump, a liquid storage tank, a liquid-cooled head, a cooling module, and plural pipes. The pipes communicate the pump, the liquid storage tank, the liquid-cooled head, and the cooling module. Any of the liquid storage tank, the liquid-cooled head, the cooling module, and the pipes exceeds the pump in any of an X axis, a Y axis, a Z axis of a three-dimensional space.

Abstract: A wave power electricity generation device includes a base unit, an electricity generation unit mounted on the base unit, a driving unit and a pneumatic unit. The driving unit is pivoted to the base unit, and includes a floating frame and a swing arm that is pivoted to the base unit and that interconnects the electricity generation unit and the floating frame. The driving unit is adapted to be driven by waves to drive operation of the electricity generation unit and to actuate operation of the pneumatic unit for compressing air into high pressure air that is to be stored in the floating frame. The high pressure air is released to actuate the electricity generation unit when the electricity generation unit is unable to be driven due to insufficient waves.

Abstract: An optical excitation device for exciting a laser light source includes a wavelength converter and a moving element. The laser light source emits a first light beam. The wavelength converter includes a wheel, a motor connected to the wheel, and a wavelength converting layer disposed on a light receiving surface of the wheel for converting the first light beam with the first wavelength into a second light beam with a second wavelength. The moving element is connected to the wavelength converter for moving the wavelength converter relative to the laser light source. There is a first reaction area between the laser light source and the wavelength converter when only the motor is operated, there is a second reaction area between the laser light source and the wavelength converter when both the motor and the moving element are operated, and the second reaction area is greater than the first reaction area.

Abstract: A photography lighting fixture includes a lighting device and a shade device. The lighting device includes a housing, a lighting element disposed in the housing, and a first attaching unit connected to the housing. The shade device includes a base mount, a plurality of shade components mounted pivotally to the base mount, and a second attaching unit mounted to the base mount and detachably and rotatably attaching the first attaching unit.

Abstract: A phosphor wheel heat-dissipating module for a laser projection system is provided. The phosphor wheel heat-dissipating module includes a phosphor wheel, a plurality of air vents and an impeller. At least one phosphor agent is coated on an outer-ring portion of a first surface of the phosphor wheel. The air vents run through the phosphor wheel. The impeller is disposed on a second surface of the phosphor wheel, and includes an inlet and a first outlet. A laser beam is projected on the outer-ring portion of the phosphor wheel. When the phosphor wheel is rotated at a high rotating speed, an airflow is inhaled into the impeller through the inlet. A first portion of the airflow is blown out through the first outlet, and a second portion of the airflow is transferred to the first surface of the phosphor wheel through the air vents.

Abstract: The invention provides an electrical connector and a backlight module using that electrical connector. The electrical connector includes a body and two conducting lines. The body is provided with first and second connecting portions, the former of which has a first connecting surface and the latter has a second connecting surface. An invariable relative angle is defined between the first and second connecting surfaces. The conducting lines are coated on the first and second connecting surfaces without crossing each other. The backlight module includes a light guide plate, two LED light bars mounted to two respective light receiving edges of the light guide plate, and an aforesaid electrical connector connecting the LED light bars. The electrical connector is electrically connected with the LED light bars and fixes their relative positions. Besides, it is easy to install the electrical connector to connect the LED light bars firmly.

Abstract: A phosphor wheel heat-dissipating module for a laser projection system is provided. The phosphor wheel heat-dissipating module includes a phosphor wheel, a plurality of air vents and an impeller. At least one phosphor agent is coated on an outer-ring portion of a first surface of the phosphor wheel. The air vents run through the phosphor wheel. The impeller is disposed on a second surface of the phosphor wheel, and includes an inlet and a first outlet. A laser beam is projected on the outer-ring portion of the phosphor wheel. When the phosphor wheel is rotated at a high rotating speed, an airflow is inhaled into the impeller through the inlet. A first portion of the airflow is blown out through the first outlet, and a second portion of the airflow is transferred to the first surface of the phosphor wheel through the air vents.

Abstract: A solar cell module is provided, including following elements. The solar collector includes a first optical surface, a second optical surface, and a third optical surface, in which a light enters the solar collector from the first optical surface, and then exits from the second optical surface after collection. The solar cell chip panel has a light-receiving surface for receiving the light exited from the second optical surface. The solar cell chip panel absorbs a specific spectrum band in the light and converting that into electricity. The light filter interface is disposed on the third optical surface, allowing light beyond the specific spectrum band to transmit the third optical surface. The cooling pipeline system includes a heat absorber, in which the light filter interface is disposed between the third optical surface and the heat absorber, and the water flowing through the heat absorber absorbs light beyond the specific spectrum band.

Abstract: A mixing light module includes a matrix, a fluorescent film, and a plurality of micro-structures. The matrix includes an incidence surface, an emission surface and a reflective surface. The fluorescent film disposed on or above the emission surface has an upper surface and a lower surface and includes a plurality of fluorescent particles. The matrix receives a first light having a first wavelength, and the reflective surface reflects the first light to make the first light to be emitted from the emission surface. Since the plurality of fluorescent particles receives a part of the first light from the emission surface, the plurality of fluorescent particles is excited to emit a second light having a second wavelength. The second light and the first light are mixed into a predetermined light. The plurality of micro-structures is used to make the first light or the second light uniform.

Abstract: A photography lighting fixture includes a lighting device and a shade device. The lighting device includes a housing, a lighting element disposed in the housing, and a first attaching unit connected to the housing. The shade device includes a base mount, a plurality of shade components mounted pivotally to the base mount, and a second attaching unit mounted to the base mount and detachably and rotatably attaching the first attaching unit.

Abstract: A light concentration module includes a primary light concentration plate, a light concentration component and an electricity generation module. The primary light concentration plate includes a primary light concentration surface and a light-emitting surface. The primary light concentration surface is used for collecting light. The light-emitting surface is used for emitting light collected by the primary light concentration surface. The light concentration component includes a first surface and a second surface. The first surface collects light from the light-emitting surface. The area of the first surface is larger than the area of the second surface. The second surface is used for emitting light collected by the first surface. The electricity generation module is used for converting energy from light into electricity.

Abstract: A light collector of a light concentration module includes a first surface, a second surface and at least one light emitting surface. The first surface has multiple microstructures. The microstructures are used for receiving a ray. The second surface is opposite to the first surface. The at least one light emitting surface is adjacent to the first surface and the second surface. The at least one light emitting surface forms a first angle ? with the first surface or the second surface, so as to output the rays received by the microstructures. The light collector satisfies 10°???35° or 85°??<90°.