摘要:
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.
摘要:
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).
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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). Thus, the light guide (21) can be fixed via the fixed part (21b), and the influence on the optical characteristic by the provision of the thin-walled fixed part (21b) can be compensated for by providing the light scatterers (23) whose density of arrangement along the lateral direction has been adjusted.
摘要:
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, φ1 is an angle between the light emitted from the light-emitting element (1) and the light axis, P(φ1) is a light distribution property of the light-emitting element (1). This provides a light-emitting device that scatters light without generating uneven brightness on a liquid crystal display panel, reduces a reflectance caused by the Fresnel's reflection, and has an improved scattering ability.
摘要:
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.
摘要:
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). Then, by subtracting the second chromaticity change amount from the first chromaticity change amount, the correction processing part obtains the value to which the chromaticity is to be modified, and modifies an image signal on the basis of the value to which the chromaticity is to be modified.