Abstract: An illumination apparatus includes: a solid-state light source; a Peltier element configured to cool the solid-state light source; a light amount sensor configured to detect an amount of a light emitted from the solid-state light source; a power consumption monitor configured to monitor power consumptions of the solid-state light source and the Peltier element; and a power controller configured to control powers supplied to the solid-state light source and the Peltier element. The power controller controls the powers supplied to the solid-state light source and the Peltier element, on the basis of the light amount detected by the light amount sensor and a sum of the power consumptions of the solid-state light source and the Peltier element.

Abstract: A projection display system includes: an image projection device projecting an image on a projection surface; an optical detecting device; and an attaching device, wherein the optical detecting device includes an irradiating section emitting an irradiation light toward a detection region which is set along the projection surface, a light receiving section receiving a reflected light generated as a result of the irradiation light being reflected from the object, and a detecting section detecting position information of the object based on the result of the light received by the light receiving section, and the attaching device includes a first attaching section attached to a support supporting the attaching device, a second attaching section attached to the image projection device, and a third attaching section attached to the optical detecting device.

Abstract: A projector includes: a reflection type light modulation device which modulates received light according to image information and reflects the modulated light; a reflection type polarization plate which separates both of light supplied to the reflection type light modulation device and light modulated by the reflection type light modulation device into respective polarized lights; and a temperature measuring member which measures the temperature of the reflection type light modulation device, wherein the temperature measuring member is disposed in the rear side of the reflection type light modulation device.

Abstract: A projector module adopts a structure having an optical image forming block and an optical block integrated via a locking member. The optical image forming block adopts a structure achieved by disposing an aluminum substrate at which an LED is mounted and a liquid crystal panel in a casing constituted with a plastic material having low thermal conductivity. The locking member is formed by bending a metal sheet through a sheet metal bending process and the locking member is set in surface contact with the substrate. The optical block adopts a structure achieved by disposing a PBS and a reflecting member at the casing constituted with a plastic material having low thermal conductivity with a quarter-wave plate disposed at the boundary of the two members.

Abstract: A lens module includes a seat, a lens holder and a thermal dissipation structure. The seat includes a base plate and two sidewalls perpendicularly formed on a surface of the base plate. The lens holder is mounted on the seat between the two sidewalls. The thermal dissipation structure is mounted on the seat and thermally conducts with the lens holder for cooling the lens holder.

Abstract: A projection display device is provided with a cooling section which supplies air drawn from an outside of the projection display device to a member to be cooled which is disposed in a main body cabinet to cool the member to be cooled; a filter section which removes unwanted matters from air drawn to the cooling section; and a filter housing portion which detachably houses the filter section therein. In this arrangement, the main body cabinet is formed with an opening which passes the filter section therethrough in detaching the filter section from the filter housing portion. Further, the filter housing portion is formed with a first space on an air flow-in side of the filter section. Furthermore, the opening has at least such a size that the first space communicates with the outside through the opening.

Abstract: A projector is provided with a radiation source adapted to radiate an electromagnetic wave during an operation and an exterior housing adapted to house the radiation source inside, wherein the exterior housing includes a first housing made of synthetic resin, and a second housing including a shield material adapted to block the electromagnetic wave, and disposed at a position for covering the radiation source in a plan view.

Abstract: An optical engine includes a chassis, a light source module, a light combination module, a light-homogenizing module and a projection lens module. The chassis has different positioning parts, and a part of members of each of the light source module, light combination module, light-homogenizing module, and projection lens module are inserted into a corresponding positioning parts of the chassis to achieve accurate positioning.

Abstract: A projection display device is provided with a main body cabinet including an air inlet; a light source unit which is disposed in the main body cabinet; and a cooling unit which is disposed adjacent to the light source unit, and cools the light source unit. In this arrangement, air drawn to an inside of the main body cabinet through the air inlet is drawn to an inside of the cooling unit, and is supplied to the light source unit. The cooling unit is provided with a filter section which removes unwanted matters from the air drawn to the inside of the cooling unit.

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: A heat radiation structure for a portable micro projector that enables efficient radiation of heat generated therein. A projector module irradiates light of high intensity using a lamp to project an image to an external screen. A thermally conductive plate having a plate-like shape, the projector module being attached to one surface of the thermally conductive plate to transfer heat generated in the projector module. A heat radiation case to which the thermally conductive plate to which the projector module is attached is coupled therein to emit the heat transferred through the thermally conductive plate outside.

Abstract: The image projection apparatus projects an image onto a projection surface through a projection optical system including a focus element (104) movable in an optical axis direction. The apparatus includes a shift mechanism that moves the projection optical system in a shift direction including a directional component orthogonal to the optical axis direction so as to move a position of the projected image on the projection surface, a shift position detector that detects a shift position of the projection optical system moved by the shift mechanism, a temperature detector that detects a temperature, and a controller that moves the focus element. The controller moves the focus element depending on the temperature detected by the temperature detector and on the shift position detected by the shift position detector.

Abstract: A projection apparatus arranged such that the first light source, the second light source and the third light source provide the first colored light, the second colored light and the third colored light, respectively. The first digital micromirror device (DMD) modulates and reflects the first colored light, while the second DMD modulates and reflects the second and third colored lights guided by the first light guiding device. Subsequently, the second light guiding device guides the colored lights reflected from the first DMD and the second DMD to the projection lens.

Abstract: An electronic device includes a heat dissipation system and an operating system. The heat dissipation system includes a housing, a first heat dissipation module received in the housing, heat pipes extending from the first heat dissipation module through the housing. The operating system includes a dust-proof housing, a heat source and a heat dissipation device. The heat source is received in the dust-proof housing and generates heat. The cooling module is adhered to an outer surface of the dust-proof housing to be cooled and attaches the heat pipes to the first heat dissipation module. The outer surface of the dust-proof housing is adjacent to the housing. The heat pipes transfer heat from the operating system into the first heat dissipation module.

Abstract: An illuminant module includes a lamp including a lampwick, a reflector and a guide cap, a lamp holder, a blower, and an axial fan. At least one portion of the lampwick is disposed in the reflector. The guide cap having a guide wall, a first air outlet, and a first air inlet is connected to the reflector and covers an opening of the reflector. The lamp holder has a space where the lamp is disposed, a second air inlet corresponding to the first one, a third air inlet adjacent to the second one, a fourth air inlet adjacent to the third one, a second air outlet corresponding to the first one, and a third air outlet adjacent to the second one. The blower outside the space is disposed at the second air inlet. The axial fan outside the space is disposed adjacent to the third and fourth air inlets.

Abstract: An image projector apparatus includes a cooler having a variable capability to cool a light source, a commanding section which gives a command to terminate a lighting operation of the light source, a selecting section responsive to the command given by the projection light processor for selecting a cooling capability of the cooler, and a control section for causing the cooler to cool the light source with the cooling capability selected by the selecting section.

Abstract: A light source device includes: a plurality of light emitting elements that emit laser light; and a wavelength selective element that includes a light selective region functioning as a resonator mirror of the light emitting element by selecting light of predetermined selective wavelength from the laser light emitted from one of the light emitting elements and reflecting the selected light toward the light emitting element while allowing the remaining laser light to pass therethrough, and a base member having a plurality of the light selective regions so that the wavelengths of the light selected by the light selective regions are different from each other.

Abstract: A projector includes a light source unit, a light source side optical system which includes a color wheel and a light guiding unit, a display device, a projection side optical system, a cooling fan, and a projector control unit. An interior of a projector casing is divided into an outlet side spatial compartment which is positioned on an outlet side of the cooling fan and in which the light source unit is disposed and an inlet side spatial compartment which is positioned on an inlet side of the cooling fan. The outlet side spatial compartment is covered thereabove by an upper division board, above which a heat conductive sheet which is formed of an aluminum sheet is disposed. The heat conductive sheet is electrically connected to the projector casing, so that electricity charged in the heat conductive sheet can be discharged.

Abstract: A projector which includes a projection optical device which projects an image includes: a heating unit which heats the projection optical device; and a control unit which controls the heating unit, wherein the control unit controls the heating unit so that the temperature of the projection optical device is equal to or higher than the temperature in which a focal position of the projection optical device is stabilized.

Abstract: A light source includes: light-emitting portion having a discharge space in the interior thereof; an arc tube having first and second sealing portions provided on both sides of the light-emitting portion along an optical axis; a reflector arranged so that a center where the optical axis passes is located on the side of the first sealing portion with respect to the light-emitting portion and configured to reflect a luminous flux emitted from the light-emitting portion; and an air flow control unit arranged on the side of the reflector in the direction of the optical axis with respect to inflection points at a connecting portion between the light-emitting portion and the first sealing portion, extending respectively along a plane including the optical axis, and including at least two panel-shaped members extending not in parallel to each other and forming a predetermined angle.

Abstract: A light source including an arc tube having a light-emitting portion and first and second sealing portions provided on both sides of the light-emitting portion along the optical axis; a reflector configured to reflect a luminous flux emitted from the light-emitting portion; and a sub-mirror arranged so as to oppose the reflector, including a main body portion provided with a reflecting surface configured to reflect part of a luminous flux emitted from the arc tube, a mounting portion configured to be fixed to the second sealing portion, and a cooling air ventilating portion penetrating through the mounting portion in the direction of the optical axis at least on the opposite side from the direction of gravitational force.

Abstract: A light source device includes: an arc tube having a light emission portion containing a pair of electrodes and configured to emit light by discharges induced between the pair of the electrodes; and a container body that accommodates the arc tube, the container body has a space in which the arc tube is accommodated, and a plurality of openings through that cooling fluids introduced from the outside of the container body are supplied into the space, the plural openings are formed at positions that allow the cooling fluids passing through the openings to collide with each other at a collision position above the light emission portion.

Abstract: A heat-dissipating structure of a housing is disclosed. The housing defines an opening that is embedded with the heat-dissipating structure. The heat-dissipating structure includes a number of metal slats, a number of connection members, and a supporting frame. The metal slats are spaced and angled to form air channels and fixed to each other via the connection members. The combination of the metal slats and connection members are supported by the supporting frame.

Abstract: A pump unit includes a pump body for discharging compressed air, a communication pipe including an elastic material and having one end fitted into a discharge port, and a pump fixture for fixing part of the communication pipe except for the one end fitted into the discharge port. The pump body is fixed only by the pump fixture.

Abstract: An illumination device includes: a plurality of light sources which emits light; a plurality of optical fibers into which the light from the light sources is entered; a bundle portion which bundles together output end portions of the plurality of optical fibers; and a cooling system which cools down at least a light output end plane of the bundle portion.

Abstract: Alight source device includes: a light emission portion; a cooling channel configured to guide air toward the light emission portion; a rotational member disposed within the cooling channel in such a condition as to be rotatable around a predetermined rotation shaft by gravity, and configured to switch the cooling channel to a first channel branched from the cooling channel in the downstream when the light source device is set in a first position, and to a second channel different from the first channel when the light source device is set in a second position, wherein a position of the center of gravity of the rotational member is located at a position shifted from the center between the rotation shaft and an end of the rotational member away from the rotation shaft toward the end.

Abstract: An illumination system adapted for a projection apparatus is provided. The illumination system comprises a cooling air guiding apparatus, a lamp, and a cooling fan. The cooling air guiding apparatus comprises an air intake device and an adjustment device, while the adjustment device comprises an air-flow adjustment element and an air-flow guiding element. The cooling fan generates a cooling air, which flows from the exterior through the air intake device into the air-flow adjustment element. The air-flow guiding element guides the cooling air in the air-flow adjustment element out of an air-flow adjustment hole towards a specific direction. Since the adjustment device may move relatively to the air intake device, the air-flow adjustment hole is adapted to move from the first position substantially aligned with the opening to the second position constituting a substantial displacement with respect to the opening. The cooling air can cool the lamp no matter what angle the projection apparatus is disposed.

Abstract: The present invention provides a projection image display device capable of both minimizing a decrease in a cooling ability and simplifying maintenance of a filter. The projection image display device according to the present invention includes a filter material for filtering external air taken into a casing, a loop-shaped filter frame onto which the filter material is mounted, a drive mechanism for rotating the filter frame in a loop direction of the loop shape, and a dust removal brush to be brought into contact with the filter material while spinning at a predetermined position. The filter material is mounted onto a part of a loop-shaped surface of the filter frame. The filter material is not mounted but a ventilation part is provided in the other part of the loop-shaped surface of the filter frame.

Abstract: A filter device includes: first and second filter elements allowing air to pass therethrough; and first and second filter holding members holding the first and second filter elements such that they are linearly connected side by side, the holding members being connected to be foldable in the position where the filter elements are connected.

Abstract: A projector includes: an optical component disposed inside a closed structure having air flow path through which air flows; and a circulating fan which circulates air. The closed structure includes: an optical component housing which accommodates the optical component; a duct which introduces air into the optical component housing, and introduces the air having flowed to the outside from the inside of the optical component housing again toward the inside of the optical component housing; and a plurality of heat exchangers each of which has a heat receiving side heat transfer member which faces the inside of the closed structure, and a heat releasing side heat transfer member which faces the outside of the closed structure. The plural heat exchangers are disposed in the air flow direction along the air flow path through which air flows to the outside from the inside of the optical component housing.

Abstract: For enabling to prevent ill effects from being generated in the structures of a reflection mirror, even if increasing an output energy from a light source, thereby preventing ill influences from being exerted on the driving condition thereof, a mirror drive controller unit 7 reads out history data of the past, relating to temperature changes on a micro mirror 1, from a first LUT holder unit 19. Upon basis of the read-out history data of the past is presumed the temperature on the micro mirror 1 at the present time. The presumed temperature on the micro mirror 1 is temperature P temp of the micro mirror 1 at the present time, and upon that P temp are changed vibration (or oscillation) condition of the micro mirror 1 in the horizontal (H) direction and vibration (or oscillation) condition thereof in the vertical (V) direction.

Abstract: A projection-type image display device generates projection light by modulating light beams of at least three primary colors in accordance with image information and synthesizing the modulated light beams. The display device includes a light source unit constituted by arranging a plurality of light source elements each having light source arrays being arranged on heat receiving plates respectively so as to conduct the light beams of the colors to irradiation surfaces of a synthesizing prism, a refrigerating unit including at least a refrigerant compressor, a condenser, a pressure reducing unit and a refrigerant pipe constituting an evaporator, and an air cooling device lower in cooling capacity than the refrigerating unit. Of the plural light source arrays, those relatively large in the amount of heat generated are connected to the refrigerating unit, while the others are connected to the air cooling unit.

Abstract: A projector comprises: a cooling fan for sucking ambient air through a filter; switching means for switching the operational mode of the cooling fan between a lowland mode and a highland mode; and control means adapted to obtain current fan voltage to determine the normal rpm value for that current fan voltage in reference to a highland voltage-rpm characteristic when the switching means is in the highland mode, obtain current fan rpm, and enables alarming means to issue a filter clogging alarm in the event that the current fan rpm is larger than the normal rpm value plus a predetermined value. Thus, filter clogging can be detected with precision in highlands.

Abstract: A projector includes: a housing; an optical element accommodated in the housing; and an air supply unit configured to generate a flow of cooling air for cooling a cooling target element including the optical element, a dustproof area into which the cooling air can be introduced from the outside of the housing via a dustproof filter is formed inside the housing, the optical element is accommodated in the dustproof area of the housing, and the air supply unit includes a first air supply unit configured to introduce the cooling air from the outside of the housing to the dustproof area via the dustproof filter, and a second air supply unit accommodated in the dustproof area and configured to supply the cooling air introduced to the dustproof area by the first air supply unit toward the optical element.

Abstract: A projection-type image display apparatus includes an imaging light generation portion which generates imaging light, a housing which stores the imaging light generation portion, and a passage region provided in the housing, through which the imaging light emitted from the imaging light generation portion passes. The housing has a movable portion of which dimension in at least one direction varies, and the passage region is stored in the housing by means of the movable portion while imaging light is not projected.

Abstract: A cooling system for cooling down a heat source of a projection device is disclosed. The cooling system includes a fan, and a control module. The control module is configured for supplying a first voltage to the fan for a first duration after the projection device is powered off and a second voltage to the fan for a second duration successive to the first duration. The second voltage is greater than the first voltage.

Abstract: An apparatus for transferring heat between an object and a fluid, the apparatus comprising at least one set of elongate members, the elongate members each having a tip for contacting the object. The tips of the elongate members generally make a point contact with the object and allow heat to be transferred between the object and a fluid, often air. A gap is provided between adjacent elongate members to facilitate fluid flow around the object and between the elongate members.

Abstract: A projection display device includes a main body cabinet; a shield member which is disposed in the main body cabinet, and shields an electromagnetic wave; an air inlet which is formed in the main body cabinet; and a filter device which removes unwanted matters from an air drawn into the main body cabinet through the air inlet. In this arrangement, the filter device includes a metal filter. The metal filter and the shield member are electrically connected to each other when the filter device is mounted in the main body cabinet.

Abstract: The present invention is directed to provide a light source apparatus that includes space-saving LED cooling unit, and a projector type image display apparatus including the same. The light source apparatus of the present invention includes a plurality of LEDs, a plurality of heatsinks that are respectively thermally coupled to the LEDs and that are disposed in series with an interval between each other, and a cooler mechanism that sends a cooling airflow into the heatsinks along their disposition direction. A heatsink included in the plurality of heatsinks that dissipates the heat of an LED having a greater heat generating amount out of the plurality of LEDs is disposed downstream in the cooling airflow from the other heatsink.

Abstract: A projection display device includes an imager portion which modulates light based on an image signal; a projection lens unit which includes a resin lens and projects the light modulated by the imager portion; a projection port which is formed in a main body cabinet, and passes light from the projection lens unit; an air inlet which is formed in a vicinity of the projection port of the main body cabinet; and an air passing portion which draws in an air through the air inlet and passes the drawn-in air along the projection lens unit.

Abstract: The image projection apparatus includes a temperature detector that detects a temperature inside of the apparatus, and a controller that performs a protection operation when the temperature detected by the temperature detector is higher than a predetermined temperature. The controller measures an elapsed time from when a power of the apparatus is turned on, and changes the predetermined temperature in accordance with the elapsed time. This apparatus can avoid mistaken activation or inactivation of a protection function at the time of re-lighting of the light source due to the influence of the residual heat after the light source is turned off.

Abstract: A projector includes a cooling device for performing cooling of a target object housed inside a housing, a first temperature sensor disposed in an anterior stage of the target object on a cooling path formed by the cooling device inside the housing, and for measuring a first detection temperature in an anterior area of the cooling among peripheral areas of the target object, a second temperature sensor disposed in a posterior stage of the target object on the cooling path, and for measuring a second detection temperature in a posterior area of the cooling among the peripheral areas, and a control device for performing calculation regarding the temperature of the target object from the first detection temperature and the second detection temperature, and controlling the cooling device based on the result of the calculation.

Abstract: An electro-optic apparatus includes an electro-optic panel, a wiring board, and an integrated circuit unit. The integrated circuit unit including a heat radiating member arranged so as to overlap at least partly with the integrated circuit unit.

Abstract: Structures for reducing the effect of charged surfaces near the electrodes on the performance efficiency of an electrohydrodynamic (EHD) device are disclosed. The potential levels on surfaces of an electronic device near the EHD electrodes are varied with respect to a function of the combination of distance from the emitter and the distance from the collector. The potential levels may be constant, may vary in discrete steps, may be continuously variable along the length between the EHD electrodes and beyond the electrodes, and may vary with respect to time.

Abstract: A projection-type display apparatus includes an optical modulation device having a lamp emitting a light, and a projection optical system projecting the light on a screen in a magnified form, with the projection optical system including a plurality of reflection mirrors. In addition, a fan system air-cools reflective surfaces of the plurality of reflection mirrors. The fan system includes a fan and a controller for controlling the fan based on luminance output of the lamp.

Abstract: A projection subsystem includes a light engine that provides a collection lens, a collimator and at least one solid state light emitter. A projection lens assembly receives the image and provides a projection beam having a luminous flux level. The projection subsystem has a portability efficacy.

Abstract: A display apparatus, comprises a filter unit 33 attached on an air inlet opening 28a, having such a filter 36 that a suction negative load generating at the air inlet opening 28a formed in an upper cabinet 3 comes to be smaller than the suction load generating at gaps 29a and 30a defined in the upper cabinet 3, when driving a cooling unit 18, for sucking an air from the upper cabinet 3 and discharging the air used for cooling into the upper cabinet 3, when cooling down optical parts, such as, display devices 15R, etc., and a polarizing plate 16R, etc., of an optic unit 9.

Abstract: A projector apparatus equipped with a metal plate structure serving as a light shield against a light source and as a heat radiator is provided. The metal plate structure is arranged over the light source to hide the light source. The metal plate structure extends farther to a cooling fan and connects to the upper end of the air expiration face of the fan. The metal plate structure thus serves as the top plate of the baffle section of the exhaust duct of the fan for leading the air expired from the fan. The metal plate structure also serves as a shield plate, which can be connected to a grounded metal piece.

Abstract: Projection display apparatus 100 is equipped with a cooling device 300, which comprises an air passage as the passage of the air and a heat absorber that cools off the air flows in the air passage, and a light source controller 220, which controls the amount of light irradiated on the optical elements (liquid crystal panel 50 and the like). The optical elements are provided in the air passage. When the heat absorber receives an operation termination instruction to terminate the operation of the apparatus itself, it will end the cooling of the air flowing in the air passage. the light source keeps emitting the light, even in a case of receiving the operation termination instruction.

Abstract: An optical system as subject of the present invention comprises at least one packaged spatial light modulator comprising a front side for facing incident light. The optical system further comprises projection optics for projecting an image formed by the packaged spatial light modulator, there being a sealed gas space in between the front side of the packaged spatial light modulator. The optical system comprises a first heat transporting means being thermally coupled to the frontside of the packaged spatial light modulator, the first heat transporting means comprising a thermally conductive frame contacting the front side of the packaged spatial light modulator along an edge thereof. A second heat transporting means being thermally coupled to the package back side may be provided as well. The first and second heat transporting means are thermally separated by the package.