Abstract: An illumination apparatus includes a radiating fin exposed externally on an upper surface of a casing having a light source and a drive unit accommodated therein, and a securing portion to secure the casing to a ceiling surface. The radiating fin includes a ventilation path that is provided in the form of a groove located between a plurality of fin portions extending in a first direction parallel to each other and has opposite ends in the first direction, externally opened. The securing portion allows the radiating fin to be disposed with a distance from the ceiling surface. When the illumination apparatus is installed on the ceiling surface the radiating fin and the ceiling surface form a space having opposite ends in the first direction, each externally opened, and opposite ends in a second direction corresponding to a direction in which the plurality of fin portions are aligned, each externally opened.

Abstract: An object of the present invention is to obtain a display device having excellent display quality by appropriately modifying the chromaticity of images. In this display device, a correction processing part (CPU 30) determines a first chromaticity change amount stored in memory (31) on the basis of a first cumulative usage amount, which is the cumulative usage amount of an LED (17) up to a present time, the cumulative value having been measured by a counter (32), and the correction processing part also determines a second chromaticity change amount stored in the memory (31) on the basis of a second cumulative usage amount, which is the cumulative usage amount of the LED (17) up to a time when the chromaticity of a pixel is adjusted by a chromaticity adjusting part (CPU 30), the cumulative value having been measured by the counter (32).

Abstract: An object of the present invention is to obtain a display device having excellent display quality by appropriately modifying the chromaticity of images. In this display device, a correction processing part (CPU 30) determines a first chromaticity change amount stored in memory (31) on the basis of a first cumulative usage amount, which is the cumulative usage amount of an LED (17) up to a present time, the cumulative value having been measured by a counter (32), and the correction processing part also determines a second chromaticity change amount stored in the memory (31) on the basis of a second cumulative usage amount, which is the cumulative usage amount of the LED (17) up to a time when the chromaticity of a pixel is adjusted by a chromaticity adjusting part (CPU 30), the cumulative value having been measured by the counter (32).

Abstract: Substantially cylindrical supporting units are formed at both sides of a lens. The supporting units are to adjust the separation distance between the lens and the surface of a substrate depending on the height dimension of a light emitting diode mounted on the substrate from the substrate face when the lens body is fixed to the substrate. A cylindrical convex part is formed at a part of the tip face of the supporting unit in a concentric fashion relative to the supporting unit, and a cylindrical positioning unit is formed at a part of the tip face of the convex part in a concentric fashion. The positioning unit functions as a member for positioning when the substrate and the lens body are fixed to each other.

Abstract: Each light guide (21) has a fixed part (21b), formed at at least one side edge of a cross-section of the light guide (21) orthogonal to the length of the light guide (21), with which the light guide (21) is fixed to a chassis. The fixed part (21b) is thinner than the other side edge of the cross-section of the light guide (21) orthogonal to the length of the light guide (21) or a thick-walled part (21c) that is a central part of the cross-section of the light guide (21) orthogonal to the length of the light guide (21). Light scatterers (23) vary in density of arrangement between (i) a region where the light guide (21) varies in thickness between the thick-walled part (21c) and the fixed part (21b) and (ii) other regions along a direction orthogonal to the length of the light guide (21).

Abstract: In order to suppress spread of light in a direction (shorter side direction) perpendicular to a direction (longer side direction) in which a light source is directed, the light source module of the present invention includes a light guide plate (20), an LED (12) for emitting light toward at least one edge surface in the longer side direction of the light guide plate (20), and a microlens group (20b) which (i) is provided on a lower surface (20c) opposite to an emission surface (20d) of the light guide plate (20) and (ii) causes light guided in the light guide plate (20) to be extracted through the emission surface (20d). The light source module further includes curved plane structures (20a) which are (i) made up of curved planes whose ridges (20e) extend in the longer side direction and (ii) provided in the emission surface (20d).

Abstract: A light-emitting device (10) includes: a light-emitting element (1); and a light flux controlling member (2) for controlling light emitted from the light-emitting element (1), the light flux controlling member (2) has (i) a light-incoming surface (2a) which the light emitted from the light-emitting element (1) enters and (ii) a light-outgoing surface (2b), and the following equation (1) is satisfied where r is a length, from a light axis Z of the light-emitting device (10), of a plane that is provided at a certain distance from the light flux controlling member (2) in a direction parallel to the light axis Z so as to be perpendicular to the light axis Z, ?1 is an angle between the light emitted from the light-emitting element (1) and the light axis, P(?1) is a light distribution property of the light-emitting element (1).

Abstract: According to a light source module of the present invention, a plurality of light guides (21) constituting a light guide plate are provided so as to extend, parallel with one another, in a long-side direction of the plurality of light guides (21) and so as to be separated from one another by gaps. Concavities and convexes are formed in an emission surface of each of the plurality of light guides (21) along the long-side direction of the plurality of light guides (21). Respective ridge lines of the convexes out of the concavities and convexes are substantially parallel with the long-side direction. With the arrangement, it is possible to provide (i) a light source module in which the rate of occurrence of luminance unevenness can be reduced and (ii) an electronic device including the light source module.

Abstract: Substantially cylindrical supporting units are formed at both sides of a lens. The supporting units are to adjust the separation distance between the lens and the surface of a substrate depending on the height dimension of a light emitting diode mounted on the substrate from the substrate face when the lens body is fixed to the substrate. A cylindrical convex part is formed at a part of the tip face of the supporting unit in a concentric fashion relative to the supporting unit, and a cylindrical positioning unit is formed at a part of the tip face of the convex part in a concentric fashion. The positioning unit functions as a member for positioning when the substrate and the lens body are fixed to each other.

Abstract: A light-emitting device (10) is arranged such that (x) R1 monotonically decreasing as ?1 increases, at least in a range of ?1<?/3, where an intersection of a light axis Z and an emission surface of a light-emitting element (1) is a reference point; ?1 is an angle between the light axis Z and a straight line that passes through the reference point and an arbitrary point on a light-incoming surface (2a), and R1 is a distance between the reference point and the arbitrary point on the light-incoming surface (2a); (y) R2 monotonically increasing as ?2 increases, at least in a range of ?2<?/3, where ?2 is an angle between the light axis Z and a straight line that passes through the reference point and an arbitrary point on a light-outgoing surface (2b), and R2 is a distance between the reference point and the arbitrary point on the light-outgoing surface (2b); and (z) A2 scatters light without generating uneven brightness on a liquid crystal display panel and has higher scattering ability that is obtained by

Abstract: In a light emitting device including a semiconductor light emitting element; a phosphor to be excited by light emitted from the semiconductor light emitting element; and an encapsulating resin including the phosphor and covering the semiconductor light emitting element, the phosphor included in the encapsulating resin suppresses a specific wavelength component for preventing a photosensitive material sensitive to a specific wavelength from reacting. An illuminating apparatus including a plurality of semiconductor light emitting elements includes a control section for suppressing a specific wavelength for preventing a photosensitive material sensitive to the specific wavelength from reacting. A clean room is equipped with such an illuminating apparatus.

Abstract: A light-emitting device (10) includes: a light-emitting element (1); and a light flux controlling member (2) for controlling light emitted from the light-emitting element (1), the light flux controlling member (2) has (i) a light-incoming surface (2a) which the light emitted from the light-emitting element (1) enters and (ii) a light-outgoing surface (2b), and the following equation (1) is satisfied where r is a length, from a light axis Z of the light-emitting device (10), of a plane that is provided at a certain distance from the light flux controlling member (2) in a direction parallel to the light axis Z so as to be perpendicular to the light axis Z, ?1 is an angle between the light emitted from the light-emitting element (1) and the light axis, P(?1) is a light distribution property of the light-emitting element (1).

Abstract: A light-emitting device (10) is arranged such that (x) R1 monotonically decreasing as ?1 increases, at least in a range of ?1<?/3, where an intersection of a light axis Z and an emission surface of a light-emitting element (1) is a reference point; ?1 is an angle between the light axis Z and a straight line that passes through the reference point and an arbitrary point on a light-incoming surface (2a), and R1 is a distance between the reference point and the arbitrary point on the light-incoming surface (2a); (y) R2 monotonically increasing as ?2 increases, at least in a range of ?2<?/3, where ?2 is an angle between the light axis Z and a straight line that passes through the reference point and an arbitrary point on a light-outgoing surface (2b), and R2 is a distance between the reference point and the arbitrary point on the light-outgoing surface (2b); and (z) A2 scatters light without generating uneven brightness on a liquid crystal display panel and has higher scattering ability that is obtained by

Abstract: The object of the invention is to accurately detect the amount of tilt in the light reflector to the optical axis of an output light with a simple configuration. A tilt sensing apparatus includes a light reflector, a light source, a condensing unit for condensing an output light from the light source onto the light reflector, and a light sensing unit for sensing the reflected light from the light reflector. An optical device provided in the condensing unit for varying the light quantity of the transmitting light has first and second optical device strips that are formed at the positions of axial symmetry about the optical axis and have a predetermined shift in the direction of a straight line of connecting the axis of the light reflector to the condensed position where the light emitted from the light source is condensed onto the light reflector by the condensing unit.

Abstract: The object of the invention is to accurately detect the amount of tilt in the light reflector to the optical axis of an output light with a simple configuration. A tilt sensing apparatus includes a light reflector, a light source, a condensing unit for condensing an output light from the light source onto the light reflector, and a light sensing unit for sensing the reflected light from the light reflector. An optical device provided in the condensing unit for varying the light quantity of the transmitting light has first and second optical device strips that are formed at the positions of axial symmetry about the optical axis and have a predetermined shift in the direction of a straight line of connecting the axis of the light reflector to the condensed position where the light emitted from the light source is condensed onto the light reflector by the condensing unit.

Abstract: It is an object of the invention to provide a liquid crystal display apparatus capable of reducing the difference in temperature rise between liquid crystal panels and polarizers for respective colors, suppressing a temperature rise, and reducing noise caused by a fan. The liquid crystal display apparatus includes a hermetic container, and liquid crystal display sections for respective colors, namely, red, green and blue, each including a liquid crystal panel and polarizers. A cooling fan for blue sends cooling air to the liquid crystal display section for blue. A cooling fan for green and red sends cooling air to the liquid crystal display sections for green and red.

Abstract: A compact vortex-stream gas-liquid separator, and a gas-liquid separation system employing it, offers high gas-liquid separation performance with minimal pressure loss. A substantially cylindrical casing (10) is arranged with its axis lying horizontally. The casing has a fluid passage (1) formed therein, has a fluid inlet (2) provided at one end, and has a gas outlet (3) and a liquid outlet (4) provided at the other end so as to constitute as a whole a vortex-stream gas-liquid separator (9). The fluid inlet is arranged along a line tangential to the casing so that the gas-liquid two-phase fluid passes through the fluid passage in the form of a vortex stream. The gas outlet is arranged so as to be coaxial with the casing. This vortex-stream gas-liquid separator and the gas-liquid separation system (30) employing it are used in a clothes dryer or air conditioner to remove water droplets from air.

Abstract: An active controller suppressing an incoming acoustic wave by active control includes a signal processing unit filtering, an input signal corresponding to the incoming acoustic wave to generate an output signal, an error detecting portion detecting an error between the output signal and a desired response value, and an adapting portion adjusting a filtering characteristic of the signal processing portion according to the input signal, the output signal, and an error signal such that the error is minimized. The signal processing portion includes a non-recursive all zero digital filter filtering an input signal, and a lattice-type multi-stage all pole digital filter further filtering an output signal of the non-recursive all zero digital filter. The adapting portion updates a filter coefficient of the signal processing portion adaptively while clipping an absolute value exceeding one of a filter coefficient of the lattice-type multi-stage all pole digital filter.