Abstract: An LED lighting device of embodiment comprising an LED light source which generates an ultraviolet light or a visible light, an axisymmetric transparent member which is provided over the light source and which is transparent to visible light, and an axisymmetric light scattering member disposed in the transparent member apart from the light source. A distance of closest approach L2 between the light source and the light scattering member, and an area C of a light emitting surface of the light source satisfy the settled relation. A length L1 of the light scattering member, and an absorption coefficient ? (1/mm) of the light scattering member satisfy the settled relation. A diameter d1 of the bottom surface of the light scattering member, the distance of closest approach L2, and a refractive index n of the transparent member satisfy the settled relation.

Abstract: According to one embodiment, a lighting apparatus comprises a light source configured to generate heat, a transparent heat transfer member located near the light source and having transparency and heat conductivity, and a means for transferring heat from the light source to the transparent heat transfer member.

Abstract: A lighting device of an embodiment includes: a light-emitting element; an optical lens positioned on a positive direction side of an axis perpendicular to a light-emitting surface of the light-emitting element with a point of origin being set on a center of the light-emitting surface; a plurality of heat dissipation fins arranged on a negative direction side of the axis and around the axis that serves as a central axis, and arranged so as not to be present within a range of a 1/2 light distribution angle of light emitted from the optical lens in the positive direction, and being thermally connected to the light-emitting element; a cover housing the heat dissipation fins having at least one opening in each of the positive and negative direction sides; and a base member positioned along the axis and thermally connected to the light-emitting element and the heat dissipation fins.

Abstract: According to one embodiment, a lighting apparatus includes a light source which includes a light emitting surface, and a light guide provided to be coaxial with an axis which extends along a direction perpendicular to the light emitting surface. The light guide includes: an incident plane facing the light emitting surface; an outer circumferential surface configured to protrude in a direction extending away from the light source so as to surround the axis from an outer periphery of the incident surface and so as to totally reflect light from the light source which is made to enter the light guide from the incident surface; and a hollow part provided at a position distant in the axis direction from the incident surface. The hollow part includes a first light diffusing surface parallel to an axis along which the light totally reflected on the outer circumferential surface is led.

Abstract: In one embodiment, a light emitting device includes: a light source which emits light; a light guide portion which has an emission surface which emits light and a back surface which opposes to the emission surface, and which has at the back surface a reflecting portion which the light emitted from the light source enters and which reflects the entering light toward the emission surface; a heat transfer portion which opposes to the back surface of the light guide portion and is provided with an interval which is a wavelength of the light or more being spaced from the back surface; and a support portion which is provided between the reflecting portion and the heat transfer portion, and which keeps the interval between the light guide portion and the heat transfer portion.

Abstract: According to an embodiment, a heat exchanger is provided with a manifold, a heat exchange unit and a first porous body. The manifold has an inlet for a medium and an outlet for the medium. The heat exchange unit has a channel which communicates with the outlet. The first channel has a cross section of a typical length which is not more than a predetermined constant. The porous body is provided between the inlet and the outlet, and contains a plurality of pores with a mean diameter which is not more than the typical length.

Abstract: According to one embodiment, in an electronic apparatus, a first pair of electrodes has a first electrode and a second electrode. A second pair of electrodes is disposed in parallel with the first pair, and has a third electrode and a fourth electrode. A third pair of electrodes is disposed between the first pair and the second pair in parallel with the first pair and the second pair, and has a fifth electrode and a sixth electrode. A first wire electrically connects the first electrode and the second electrode. A second wire electrically connects the third electrode and the fourth electrode. A third wire electrically connects the fifth electrode and the sixth electrode. A gel covers the first wire, the second wire, and the third wire. A first detection unit detects a break status of the first wire or the second wire.

Abstract: A lighting unit according to one embodiment includes a board, a support member, and a plurality of heat radiation fins. A light emitting element is disposed on a first surface of the board. The support member has an interior surface on which a second surface of the board that is opposite to the first surface is disposed to be in contact therewith to enable heat conduction from the board to the support member. The heat radiation fins are disposed on an exterior surface of the support member substantially parallel with each other and with a clearance between each other, and each having a flat shape that extends outwardly from the exterior surface.

Abstract: A lighting unit according to one embodiment includes a board, an insulating plate, an optical lens, and a positioning member. The board has a mounting surface on which a light emitting element is mounted. The insulating plate is disposed on the mounting surface of the board to control the reflection direction of light emitted from the light emitting element. The optical lens diverges or converges the light reflected by the insulating plate. The positioning member positions the insulating plate and the optical lens such that the insulating plate and the optical lens are located away from each other by a predetermined distance. A lighting device according to one embodiment includes a plurality of the lighting units fixed to the lighting device via a fixing frame.

Abstract: A lighting apparatus, comprising: a light source that emits light; a hollow heat-transfer member including an outer surface on which the light source is disposed; and a light guiding member that covers the light source and at least part of the outer surface along the outer surface.

Abstract: According to one embodiment, an air conditioning system includes a compressor, a condenser, an expansion valve, a switching valve, an evaporator, a pump, a radiator, and a heat storage unit. The switching valve performs switching so that a first heat medium flows through either a first flow path or a second flow path. The pump supplies a second heat medium to the heat source. The heat storage unit has a heat storage material. The heat storage unit has a first heat exchange region in which heat is exchanged between the first heat medium flowing through the first flow path and the heat storage material. The heat storage unit has a second heat exchange region which is provided upstream of the radiator and in which heat is exchanged between the second heat medium supplied to the heat source and the heat storage material.

Abstract: According to one embodiment, a lighting apparatus includes a board, a base, a globe, a housing, and a cap part. The board is provided with a light emitting element to emit light. The board is thermally connected to the base. The globe is provided on the base to cover the light emitting element. The globe includes a maximum diameter part in which an external diameter of the globe is maximum. The housing is thermally connected to the base. The housing includes a cylindrical radiator through which air flows. The cap part is attached to the housing. One end part of the radiator is located between the cap part and the maximum diameter part.

Abstract: A magnetic refrigerating device includes: a magnetic refrigerating unit including a magnetic material “A” exhibiting a magneto-caloric effect that the temperature of the material “A” is increased by the application of a magnetic field and the temperature of the material “A” is decreased by the removal of a magnetic field, a magnetic material “B” exhibiting a magneto-caloric effect that the temperature of the material “B” is decreased by the application of a magnetic field and the temperature of the material “B” is increased by the removal of a magnetic field, a heat conductive material “a” exhibiting higher heat conductivity under the application of a magnetic field and lower heat conductivity under the removal of a magnetic field, and a heat conductive material “b” exhibiting lower heat conductivity under the application of a magnetic field and higher heat conductivity under the removal of a magnetic field, wherein the magnetic refrigerating unit is configured so as to include at least one layered structure

Abstract: An electronic device includes a deviation value calculation unit which calculates a deviation value from the normal boundary of the relationship between a power index associated with the driving power and the measured rotational speed of the fan, a clogging detection unit which detects, based on the deviation value, clogging in an air duct through which the fan takes in air outside the case and sends it to the radiator, and a deviation value correction unit which corrects the deviation value in accordance with aging of performance of the fan to compensate for deterioration of the clogging detection capability of the clogging detection unit caused by the aging.

Abstract: An evaporator includes a hermetically sealed vessel 1A having an inlet 17 and an outlet 16, a refrigerant supply portion 14, in which liquid refrigerant is stored, a heat transfer portion 12, to which the liquid refrigerant stored in the refrigerant supply portion 14 is supplied, heat transfer fins 12A having a heat transfer surface provided in the heat transfer portion 12, a wick 13A provided on the heat transfer surface of the heat transfer fins 12A to transfer the liquid refrigerant supplied to the heat transfer portion 12 towards the outlet 16 by means of capillarity, and a heat radiation fins 15, which is provided on the outer surface of the refrigerant supply portion 14 to prevent the temperature of the refrigerant introduced into the refrigerant supply portion from rising.

Abstract: A cooling device including: a fan configured to rotate and produce airflow; a fan case accommodating the fan, the fan case having an outlet for discharging the airflow produced by the fan; a heat exchanger having an inlet disposed to oppose the outlet of the fan case, the inlet being configured to take in the airflow discharged from the outlet; a wire disposed between the heat exchanger and the fan case to stretch along an end face of the inlet of the heat exchanger, the wire having a first end being fixed to a fulcrum and a second end; and a wire driving mechanism configured to swing the wire about the fulcrum to scrape the end face of the inlet of the heat exchanger by the wire.

Abstract: A device and method for providing a load calculating device is presented. In one embodiment, a load calculating device can include a variable acquiring unit configured to acquire monitoring variables. The monitoring variables can include in a detected value by a sensor monitoring a state of a circuit board and a performance characteristic obtained by a tool monitoring performance of the circuit board. The device can also store a first statistical model that is one of a regression model, an occurrence frequency distribution and a probability distribution; a second storage configured to store a second statistical model that is one of a regression model, an occurrence frequency distribution and a probability distribution. An arithmetic processor can then be used to calculate the intermediate variable from the monitoring variables according to the first statistical model and calculate the physical quantity from calculated intermediate variable according to the second statistical model.

Abstract: An electronic device includes a deviation value calculation unit which calculates a deviation value from the normal boundary of the relationship between a power index associated with the driving power and the measured rotational speed of the fan, a clogging detection unit which detects, based on the deviation value, clogging in an air duct through which the fan takes in air outside the case and sends it to the radiator, and a deviation value correction unit which corrects the deviation value in accordance with aging of performance of the fan to compensate for deterioration of the clogging detection capability of the clogging detection unit caused by the aging.

Abstract: A cooling device including: a fan configured to rotate and produce airflow; a fan case accommodating the fan, the fan case having an outlet for discharging the airflow produced by the fan; a heat exchanger having an inlet disposed to oppose the outlet of the fan case, the inlet being configured to take in the airflow discharged from the outlet; a wire disposed between the heat exchanger and the fan case to stretch along an end face of the inlet of the heat exchanger, the wire having a first end being fixed to a fulcrum and a second end; and a wire driving mechanism configured to swing the wire about the fulcrum to scrape the end face of the inlet of the heat exchanger by the wire.

Abstract: In a magnetic refrigerator, a permanent magnet unit shaped like a hub is so rotated as to face an annular magnetic unit having magnetic blocks arranged in a circumferential direction. The permanent magnet unit is also arranged to be concentric with a magnetic unit and has an inner and outer diameters substantially equal to those of the magnetic unit. Each of the magnetic blocks has positive and negative magnetic segments alternately arranged with predetermined gaps. As the permanent magnet unit rotates, heat conducting members are inserted into and removed from the gaps between the magnetic segments of the magnetic block. This allows heat generated from the magnetic segments to conduct in one direction.