Abstract: An image projection apparatus is disclosed which is capable of reducing noise when airflows from plural flow paths are taken in into a fan and exhausted therefrom. The apparatus comprises a first flow path through which a first airflow for cooling a light source passes, a second flow path through which a second airflow for cooling constituent parts other than the light source passes, a fan which exhausts air introduced from the first and second flow paths to the outside of the apparatus, a third flow path which introduces a third airflow to an exhaust area between the light source and the fan in the first flow path, and a light-shielding member which is provided in the exhaust area and shields the light from the light source.

Abstract: An electric apparatus includes a centrifugal fan that includes an impeller in a casing, and is configured to draw air when the impeller rotates in the casing, and to have a blowoff channel of the air from the impeller in the casing, which spreads in a rotating direction of the impeller, and a first cooled part and a second cooled part that has a necessary cooling air capacity larger than that of the first cooled part, the first cooled part and the second cooled part being cooled by the air drawn by the centrifugal fan, wherein a drawing surface of the centrifugal fan has a first drawing area and a second drawing area that has a drawing speed higher than that of the first drawing area when the impeller rotates.

Abstract: A projector apparatus includes a housing having an air inlet and an air outlet, a light source device provided in the housing, an image projection unit provided in the housing and configured to emit an image projection light beam so as to project an image onto a screen, and a cooling device configured to cool the light source device and the image projecting unit. The cooling device includes a cooling passage extending from the air inlet to the air outlet, and a fan configured to suck in outside air from the air inlet and to exhaust the outside air passing through the cooling passage, out of the housing from the air outlet. The air filter section includes a cylindrical filter body, a filter support member configured to support the filter body, and a rotating unit configured to rotate the filter support member.

Abstract: An image projection apparatus is disclosed which is capable of reducing noise when airflows from plural flow paths are taken in into a fan and exhausted therefrom. The apparatus comprises a first flow path through which a first airflow for cooling a light source passes, a second flow path through which a second airflow for cooling constituent parts other than the light source passes, a fan which exhausts air introduced from the first and second flow paths to the outside of the apparatus, a third flow path which introduces a third airflow to an exhaust area between the light source and the fan in the first flow path, and a light-shielding member which is provided in the exhaust area and shields the light from the light source.

Abstract: A mounting structure for a temperature sensor, which detects the temperature of a wall surface. The mounting structure includes a groove formed in the wall surface and having an inlet from which the temperature sensor is inserted. The temperature sensor includes a main body, which has a temperature detection surface that detects the temperature of the wall surface, and a lead wire connected to the main body. A support supports the main body. A wire bender bends the lead wire of the temperature sensor extending out of the inlet to press the temperature detection surface of the temperature sensor against the wall surface with an elastic force of the lead wire that is produced when the lead wire is bent. A stopper restricts movement of the main body of the temperature sensor.

Abstract: Disclosed is an image projecting apparatus having a cooling device, which cools heat generated from a plurality of light sources respectively emitting light of different colors and heat generated from a display device simultaneously, while effectively dispersing the heat. The image projecting apparatus includes a projecting system which projects light; a display device disposed in series with the projecting system; an optical system disposed in parallel with the projecting system, and including a plurality of light sources which transmit the light to the display device and generate heat when the light is transmitted to the display device; a heat dissipation device disposed at an outer edge of the optical system which dissipates the heat generated from the plurality of light sources; and a cooling fan disposed opposite to the display device, which inhales air and discharges the air to the heat dissipation device.

Abstract: A portable electronic device with micro-projecting module includes a shell body, a micro-projecting module, a heat-conducting plate and a supporting stand. The shell body has a front lateral plate and a bottom lateral plate adjoining the front lateral plate. The front lateral plate has a front through hole, while the bottom lateral plate has a bottom through hole. The micro-projecting module is arranged in the shell body and has a lens exposing to an outside of the shell body from the front through hole. The heat-conducting plate is arranged in the shell body and is positioned between the micro-projecting module and the bottom through hole. In the meantime, the heat-conducting plate has a heat-absorbing face contacting the micro-projecting module and a heat-dissipating face abutted against the bottom through hole.

Abstract: A projector includes an optical arrangement and a cooling arrangement. The optical arrangement includes a light source, a filtering component, a light modulation component and a projection lens. The filtering component filters the light emitted by the light source. The light modulation component modulates the light filtered by the filtering component to form an image. The projection lens projects the image formed by the light modulation component. The cooling arrangement is arranged relative to the optical arrangement to cool the optical arrangement. The cooling arrangement includes a blower, an air duct and a heat sink. The blower blows cooling air. The air duct guides the cooling air from the blower to the filtering component along an cooling air path. The heat sink is disposed in the cooling air path within the air duct and fixedly attached to the light modulation component to thermally contact with the light modulation component.

Abstract: An image display apparatus has a first exhaust fan (13) for mainly exhausting air from a light source unit (9) and discharging the air to the outside of the image display apparatus and a second exhaust fan (14) for mainly exhausting air from a power supply unit (11) and discharging the air to the outside of said image display apparatus. The inspiration face of the second exhaust fan is arranged to partly overlap the expiration face of the first exhaust fan. Accordingly, the internal temperature of the image display apparatus, and hence the temperature of the exhaust air, can be efficiently reduced, and at the same time fan noise of the fans can be reduced. As a result, uprating of power of the light source unit and downsizing of an image display apparatus can be simultaneously achieved.

Abstract: A projector includes: a casing having a surface; a cooling medium flowpath provided inside the casing, through which a cooling medium is allowed to flow; and a radiator in which a part of the cooling medium flowpath is arranged, the radiator being deployable by rotating with respect to the casing, and adapted to be accommodated in the casing and along the surface of the casing.

Abstract: A lamp unit includes a reflector with a lamp mounted therein, a reflector holder holding the reflector, and an ejector member fixed to the reflector holder, for ejecting air to cool the lamp, the ejector member including an insertion member with a tubular stud inserted therein for supplying compressed air, a fluid passage forming member having a fluid passage for being supplied with air from the stud, and a hole defined in a distal end of the ejector member.

Abstract: A projection type display apparatus includes a housing having a first side having an air intake opening and a second side having an air exhaust opening, a light source for supplying light, and a light valve device which modulates the light output from the light source. A centrifugal fan is associated with the air intake opening so as to draw air from the air intake opening. A first ventilation path is coupled with the air intake opening so as to lead air flow from the air intake opening toward a lower portion of the light valve, and a second ventilation path is formed from the lower portion of the light valve to an upper portion of the light valve. An exhaust fan is associated with the air exhaust opening so as to draw out air flowing from the second ventilation path through the air exhaust opening.

Abstract: This invention discloses a projection type image display apparatus that includes a color separation optical system which separates illumination light into a plurality of chromatic rays of light, a plurality of image forming panels illuminated with the plurality of chromatic rays of light, respectively, a color synthesizing optical system which synthesizes rays of light emitted from the plurality of image forming panels illuminated therewith, and a plurality of cooling units which cool areas around the plurality of image forming panels, respectively, in which a cooling capacity (for example, specifications of a cooling unit or type of air-blowing fan) of at least one of the plurality of cooling units is different from those of the other cooling units. Thereby, cooling can be carried out most suitably for each color optical path, and cooling that is superior in efficiency and in balance can be carried out.

Abstract: A prism is mounted onto a motor without regard to its rotation angle relative to the motor index. Its position is electronically set later after construction of the optical path. A motor controller is used to control the rotation of the prism. This motor controller keeps the prism spinning at a constant velocity and positions the prism phase (rotation angle versus time). A variable offset is used to position the absolute prism rotation as a function of time. The phase may be advanced or delayed by an operator during set up. Each prism has its own phase. The phase of each prism in the system is set so that the illumination pattern correctly matches the video addressing of the panel. This is a one time set up during construction. The correct positions are set, and stored in non-volatile memory for life.