Abstract: The invention relates to a light emitting plate system (1), in which the plate (10) is equipped with at least one particle layer (40), the particle (50) of which have been designed to achieve an improved transparency and light extraction efficiency of the plate (10).

Abstract: An electronic device that facilitate locating connection port thereof is described. The main portion has a lateral surface. The connection port is disposed on the lateral surface. The identification symbol is disposed on the lateral surface. The light source is disposed within the main portion and operable to emit light through the identification symbol so as to project a pattern of the identification symbol on a surface, which supports the main portion. The connection port on a lateral surface of the electronic device is located according to where the pattern of the identification symbol is located.

Abstract: In one aspect, an illumination structure includes a substantially non-fiber waveguide, which itself includes a discrete in-coupling region for receiving light, a discrete propagation region for propagating light, and a discrete out-coupling region for emitting light.

Abstract: Method and apparatus for attenuating unwanted aspects of lighting from a luminaire which is disposed to illuminate an object or objects being photographed. A light attenuating mask is disposed between the luminaire and the object or objects. The light attenuating mask may diffuse, obstruct, or otherwise modify projected light such that light intensity is diminished, unwanted reflections of the luminaire are suppressed, or other aspects of the light are altered. The mask may attach to the luminaire or may be free standing and separate therefrom.

Abstract: A lighting device with a light source followed by an optical apparatus in an emission direction, and a primary optics element with a light inlet and a light outlet being arranged between the light source and the optical apparatus. The primary optics element is designed such that desired characteristics of the light beam are formed within the primary optics element by deliberate reflections on specially shaped reflective surfaces of the primary optics element.

Abstract: A lamp assembly for mounting to a panel includes a housing assembly having a lamp section holding a light source assembly, and a lens section extending from the lamp section. The lens section has a lens through which light from the light source assembly is directed, wherein the lens is configured to be received within a mounting opening of the panel. A locking tab extends from an outer surface of the lens section, wherein the locking tab is configured to be received within the mounting opening of the panel and wherein the locking tab is configured to engage a locking surface to secure the housing assembly relative to the panel.

Abstract: This invention relates to light fittings and in particular light fittings which produce a uniform and soft light or a predetermined focused beam of light.

Abstract: In the present invention, provided is a surface light emitter in which an amount of light emitted from the surface light emitter and front luminance are designed to be increased, and generation of moire images is also designed to be inhibited, and also provided is a display device employing the surface light emitter as a backlight. Also disclosed is a surface light emitter possessing at least a light control sheet and a surface light-emitting device, wherein the light control sheet comprises protrusions provided on a surface of the light control sheet, and tip portions of the protrusions are attached to a light emission surface of the surface light-emitting device through an adhesion layer, and wherein the light control sheet has a haze value of at least 85%.

Abstract: An assembly for providing illumination to a selected incident area includes a support; a first illumination device coupled to the support, the first illumination device including a first light emitting device and a first lens positioned for focusing light emitted by said first light emitting device; a second illumination device coupled to the support, the second illumination device including a second light emitting device and a second lens positioned for focusing light emitted by said second light emitting device; the first and second lenses projecting defocused images of the respective first and second light emitting devices to the selected incident area.

Abstract: A light flux control member has a back face provided with a recess and a ring-like-recess-portion surrounding the recess. Output light of a point-like-light-source (light emission element) is incident to the recess and the ring-like-recess-portion. Incident light to the recess is emitted from a light control emission face after inner-propagation. Incident light to the ring-like-recess-portion is refracted as to hardly generate inner-propagation light deflected to directions near to a direction of reference optical axis L, resulting in outgoing from any part of the light control emission face, or, if some outgoing occurs from the light control emission face, such outgoing occurs only at an outer periphery portion of the light control emission face. As a result, illumination light quality is avoided from being reduced by appearance of conspicuous ring-like bright part. In addition, uniform illumination light can be supplied to a broad angle range.

Abstract: Disclosed are a light homogenizing device and a display apparatus including the same. The light homogenizing device can include a light source; a polarization rotator, including two planes of polarization that are vertical to each other, and receiving a beam of light incident from the light source and outputting a polarized linear beam of light having different polarization depending on driving voltage; and a birefringent plate, receiving the polarized linear beam of light and outputting two refracted beams of light proceeding by being refracted in different directions. Here, the two refracted beams of light can be combined at a predetermined point into a uniform beam of light. With the present invention, the light homogenizing device can improve the uniformity of an image through the decrease of a fringe pattern.

Abstract: A lamp having at least a portion of a body formed of translucent material defining a hollow chamber within which a low light level light bulb is housed. A portion of the body is removable to provide easy access to the light bulb for removal and changing when required.

Abstract: A lighted background for mounting on a wall of an aquarium fish tank or the like includes a front panel having an image formed thereon. Light apertures are formed through the front panel and lighting is provided behind the panel to direct light through the apertures. Translucent material covering the apertures and reflective material behind the lights enhances the lighting effect.

Abstract: A device for creating a predetermined light output distribution having a substantially rectangular shape in angle space is provided having a lens with a revolved inner surface and a complex outer surface. The inner surface has a combination of reflective and refractive surface facets swept about an axis of revolution perpendicular to the optical axis of the device. The outer surface has a non-planar, non-circular, non-spherical shape. This outer surface generates an appropriate intensity distribution in a direction generally parallel to the major axis of the output rectangle and may also distribute energy generally parallelly to the minor axis of the output rectangle as well. The optical efficiency improvement in the design of this improved preferably LED-based product has several direct benefits including; increased reliability, lower operating temperature, reduced electrical requirements, greater product life and significantly reduced cost as compared to existing LED products.

Abstract: The invention relates to an illumination device for a medical care unit. The illumination device comprises a plurality of light units arranged on a fixing unit to illuminate a room and a display area. At the same time, the color temperature and the distribution thereof as well as the brightness of the individual light units can be tuned to each other, for instance.

Abstract: A lighting apparatus includes a light source and a light beam separating member to separate light emitted from the light source into at least two different directions. The light beam separating member has a light incident plane on which light emitted from the light source is incident and a light output plane from which the light is output after being transmitted through the light beam separating member. In this structure, output light from the light beam separating member is clearly separated. Further, output light from the light beam separating member has characteristics that an angular width of each separated light beam is narrow.

Abstract: A light source device includes a light-condensing device that condenses an illumination light that is emitted from a light source lamp. The light-condensing device includes at least one lens, a lens holder in which a lens is fixedly provided, and a lens holding member. The lens holding member is a member for fixing a lens to the lens holder. The lens holding member causes at least one circumferential portion of the lens to protrude to the lens holder side, and causes the optical axis of the lens to match the optical axis of the illumination light.

Abstract: Disclosed is a method and apparatus for providing a solid state light emitter and driving circuitry integrated into a component module that will retrofit common incandescent light bulb applications.