Patent application number | Description | Published |
20080198336 | PROJECTION APPARATUS AND LAMP MODULE - A projection apparatus including a casing, a lamp module, an imaging system and an optical engine is provided. The lamp module is disposed in the casing and includes a frame, a first fan, a plurality of light sources and a wind guiding device. The first fan is disposed on the frame and provides a cooling airflow. The light sources provide a light beams. The wind guiding device is disposed between the first fan and the frame, and has a baffle disposed on a flowing path of the cooling airflow to divide the cooling airflow into a plurality of cooling sub-airflows for cooling the light sources respectively. The imaging system and the optical engine are received in the casing and disposed on the transmission path of the light beam, and the optical engine is positioned between the lamp module and the imaging system. | 08-21-2008 |
20080278694 | COLOR WHEEL MODULE AND PROJECTION APPARATUS USING THE SAME - A color wheel module including a motor, a filter unit, and a magnetic sensor is provided. The motor has a rotating unit. An index mark is disposed on the rotating unit. The filter unit is connected to the rotating unit. The magnetic sensor is disposed adjacent to the motor. The magnetic sensor is adopted for sensing the change of the magnetic field caused by the index mark rotating with the rotating unit. Further, a projection apparatus with the color wheel module is provided. | 11-13-2008 |
20080304020 | Projecting device - A projecting device includes a casing, an optical engine, and a heat-dissipating mechanism. The casing includes a lower casing body and an upper casing body covering the lower casing body. The optical engine is disposed in the casing, and includes a light source module. The heat-dissipating mechanism includes a first blower disposed uprightly in the casing and adjacent to one side of the light source module for driving airflow to cool the light source module and the casing. The first blower has a thickness greater than one half of a length thereof and greater than one half of a width thereof. With the arrangement of the first blower, a sufficient amount of airflow is provided to the system to improve the heat-dissipating effect and to enhance system reliability. | 12-11-2008 |
20090147454 | Heat dissipation module - A heat dissipation module is used to cool a microprocessor. The heat dissipation module includes a base, a diversion pipeline, a plurality of heat conductive pieces and a fan. The base is assembled on the microprocessor. The diversion pipeline is connected to the base, provides a diversion direction, and has a heat insulated pipe-wall which partitions the diversion pipeline into an inside and an outside portions and reduces the heat conduction in the diversion direction of the diversion pipeline. The heat conductive pieces are fixed on the diversion pipeline, and have a heat dissipation direction from the inside portion to the outside portion of the diversion pipeline which crosses the diversion direction. Each two neighboring heat conductive pieces are separated with the heat insulated pipe-wall. The fan is assembled on the outside of the diversion pipeline and provides a cool air for the heat conductive pieces. | 06-11-2009 |
20100271600 | ILLUMINANCE DEVICE AND PROJECTION SYSTEM - An illuminance device including a gas discharge lamp, an airflow generator, and a distributing duct is provided. The lamp has a reflector, a base connected to the reflector, a burner installed in the reflector, and the base, a first opening located at the reflector and a front part of the lamp, and a second opening located at a rear part of the lamp and exposing the burner. The distributing duct has an inlet, a first outlet, and a second outlet, and an opening area of the first outlet is larger than that of the second outlet. A cooling airflow provided by the airflow generator enters the distributing duct via the inlet, the distributing duct guides a part of the cooling airflow to the first opening via the first outlet, and the distributing duct guides another part of the cooling airflow to the second opening via the second outlet. | 10-28-2010 |
20100289410 | Illumination device and control method thereof - An illumination device and a control method thereof are provided. The illumination device includes a fan and a light emitting diode module capable of emitting a light beam. The control method includes: detecting a fan signal of the fan; determining whether an operation of the fan is abnormal according to the fan signal, wherein a driving current of the LED module is reduced when the operation of the fan is determined to be abnormal; and a driving current of the LED module is reduced to a predetermined rang of the normal rated driving current when the fan is determined to be stop according to the fan signal. | 11-18-2010 |
20100295688 | Illumination device and control method thereof - An illumination device and a control method of the illumination device are provided. The illumination device includes a thermal sensor and a light emitting diode (LED) module. The control method include steps of: enabling the thermal sensor to detect the environment temperature outside the illumination device, and comparing the environment temperature with a threshold value, wherein if the environment temperature is higher than the threshold value, the driven current of the LED module is reduced and the thermal sensor is shut down within a continued period of time. | 11-25-2010 |
Patent application number | Description | Published |
20100181886 | Heat dissipating module - A heat dissipating module is adapted for transferring heat from a heat source. The heat dissipating module includes a first heat sink, a fan, a second heat sink, and a partition. The first heat sink is adapted to be connected to the heat source and has an outlet. The fan is disposed adjacently to the first heat sink. The second heat sink is connected to the first heat sink. The partition is disposed between the first heat sink and the second heat sink and has an inlet, and the position of the inlet is corresponding to the position of the fan. An airflow driven by the fan is capable of flowing through the second heat sink, the inlet, and the first heat sink in sequence, and the airflow is capable of exiting from the outlet of the first heat sink. | 07-22-2010 |
20100290237 | Illumination apparatus and heat dissipation structure thereof - An illumination apparatus includes a housing, a light source module, and a heat dissipation structure including heat sink fins, a shutter structure, and a variable element. The housing provides a bottom and an outlet disposed at one side of the bottom. The heat sink fins are disposed in the housing and thermal conductivity connected with the light source module. The shutter structure is disposed on the outlet and includes guiding plates, a connecting rod, and an operating element. Each of guiding plates is connected to the connecting rod. The operating element is disposed at one end of the connecting rod and provides an operating force for the connecting rod. The variable element is near the heat sink fins and connected with the connecting rod, the variable element is deformed to exert a force on the connecting rod when the variable element is heated. | 11-18-2010 |
Patent application number | Description | Published |
20090244491 | PROJECTOR AND LAMP MODULE LATERALLY EXTRACTED OUT - A projector includes a case, an optical engine, a lamp module, and a centrifugal fan. The optical engine, the lamp module, and the centrifugal fan are disposed in the case. The case has a side cover. The lamp module is disposed adjacent to the side cover to generate heat as well as light which is modulated by the optical engine into an image light. The centrifugal fan is disposed adjacent to the lamp module, impelling air into the lamp module from a side and out from the rear to dissipate heat from the lamp module. | 10-01-2009 |
20100007857 | Illuminating device and projecting apparatus using the same - An illuminating device adapted to a projecting apparatus including a lamp module, a power module, and a fan is provided. The lamp module is separately disposed in the projecting apparatus. The lamp module has a lamp, an igniting module and a plate. The igniting module is capable of generating a high voltage signal to drive the lamp. The plate is disposed between the lamp and the igniting module for shielding radiating heat generated by the lamp. The power module is capable of generating a low voltage signal transmitted to the igniting module through a low voltage power line. The igniting module transforms the low voltage signal into the high voltage signal to drive the lamp. The fan is disposed at a first side of the lamp for cooling the lamp. | 01-14-2010 |
20140085612 | ILLUMINATION SYSTEM AND PROJECTION APPARATUS - An illumination system adapted to be used in a projection apparatus is provided. The illumination system includes a solid-state light source group, a cooling module, and an ion fan. The cooling module is thermally coupled to the solid-state light source group. The cooling module is located on a path of a forced convection air generated by the ion fan. Moreover, the invention further discloses a projection apparatus including the aforementioned illumination system, and the projection apparatus avails prolonging a life time of the illumination system, and the ion fan does not have a magnetic shearing sound of a motor and a wind shearing sound of fan blades to avail reducing an operation noise of the illumination system. | 03-27-2014 |