Abstract: A display device includes a prism sheet between a display cell and a light guiding plate. The prism sheet includes a plurality of prisms having a constant apex angle continuously arranged in a second direction on a surface thereof opposed to a light-exiting surface of the light guiding plate. Each of ridge lines of the prisms extends in a first direction. Each prism has a first inclined face on a side on which light from the light guiding plate is incident and a second inclined face on a side reflecting the incident light. An area of the first inclined face is made smaller than an area of the second inclined face, and an area of a light-emitting region in the prism sheet is made larger than an area of a non-light-emitting region.

Abstract: The partially lit T-bar includes a spine with a rest shelf at a lower portion thereof. The rest shelf supports adjacent ceiling tiles. The under surface of the rest shelf includes a lighting module on a portion and a plain unlit undersurface on other portions. Additional T-bars which are shorter, and typically fully lit or fully unlit and half the length of the partially lit T-bar are also provided which can attach at ends or near a midpoint of the partially lit T-bar and typically perpendicularly thereto. A great variety of lighting patterns in a dropped ceiling is thus facilitated. Each of the T-bars preferably also includes a heat sink on an upper portion of the spine and also preferably a lower heat sink on an upper portion of the rest shelf. Heat associated with the light element of the T-bar can thus be drawn away from a space below the ceiling.

Abstract: A light guide plate includes a light incident surface to which a light is configured to be incident, a light exit surface from which the light incident through the light incident surface is configured to exit, a bottom surface facing the light exit surface configured to reflect at least a portion of the incident light, and a scattering pattern disposed on the bottom surface. The scattering pattern includes a first protrusion portion protruding from the bottom surface, a recess portion disposed along a circumference of the first protrusion portion and recessed from the bottom surface and a second protrusion portion spaced apart from the first protrusion portion and disposed along a portion of the recess portion.

Abstract: Retrofit systems and methods are disclosed for lighting installations, and in particular, to retrofit systems and methods used to retrofit troffer-style lighting installations with LED light sources. Retrofit systems can be used with different light fixtures, but those described are particularly adapted for use with troffer-style fixtures. These retrofit systems can provide the same amount of light as traditional light fixtures already do, for example 1600-4000 lumens or more. The retrofit systems can be used with many different light sources but are particularly well-suited for use with solid state light sources or light engines, such as those utilizing LEDs. Some embodiments of the present invention comprise a mechanical mounting system for installing an LED light engine within an existing lighting system housing or pan, such as a troffer pan, without penetrating the ceiling plenum.

Abstract: A display apparatus includes: a substrate (32) provided with one surface on which a light emitting element (31) is mounted; a light guide plate (5) which is provided with one side surface facing the one surface of the substrate (32) and emits light from one surface of the light guide plate (5), the light being emitted from the light emitting element (31) and entering the light guide plate (5) through the one side surface; a display panel (2) which displays an image with light from the light guide plate (5); and a holding section (8A) which holds the display panel (2), and at least one contact prevention section (81) is arranged between the substrate (32) and the light guide plate (5), in a direction where the one surface of the substrate (32) faces the one side surface of the light guide plate (5), a size of the at least one contact prevention section is larger than that of the light emitting element (31) and is provided in the holding section (8A) to prevent contact of the substrate (32) and the light guide

Abstract: The present invention provides a backlight module, comprising an optical film assembly, a light guide plate, a reflective sheet, and the optical film assembly comprises a first prismatic glass, and the first prismatic glass comprises a display region, two side walls, a junction region, and the display region and the reflective sheet are oppositely located, and the side wall is formed by the display region extending downward, and the side wall is connected between the display region and the junction region to form an accommodation space, and the light guide plate and the reflective sheet stack up together inside the accommodation space, and the light guide plate is located between the reflective sheet and the optical film assembly, and the reflective sheet is located between the light guide plate and the junction region.

Abstract: An illumination device may include a body having twelve sides, the body being formed by a first body portion including six sides of the twelve sides, and a second body portion including six sides of the twelve sides. The first body portion and the second body portion may be coupled to one another at a first interface and at a second interface disposed radially inward of the first interface, wherein the first interface may be positioned in a plurality of planes, and wherein the second interface may be positioned in a single plane. At least a portion of each of the twelve sides may include a transparent window. The illumination device may include a resilient cover disposed around the body.

Abstract: The display apparatus includes an optical sheet provided between a display panel and direct type light sources, and an inner chassis (support body) 4 having a frame-shape which supports the back surface of peripheral edge parts of the display panel. A light shielding member is provided over an entire periphery of the display panel at the back side of the peripheral edge part thereof. An outer frame part of the light shielding member is sandwiched between the display panel and the inner chassis, and an inner frame part of the light shielding member is sandwiched between the display panel and the optical sheet. Light passing through the optical sheet is shielded by the light shielding member even when trying to be leaked to an outside from the polarizing plate, such that the light is not leaked due to being shielded by the light shielding member. Therefore, the light is prevented from entering the peripheral edge part of the display panel, and an occurrence of light leakage is prevented.

Abstract: A method for changing a light bulb in a parking light pole, comprising disposing a housing on the top of a light pole for holding a lamp holder having a lamp disposed therein, holding the lamp holder in the housing by urging the lamp holder downward, removing the lamp holder by urging a removal apparatus up through an annulus in the center of the light pole to urge a plurality of pivoting members outward and away from the bottom surface of the lamp holder to allow the lamp holder to fall and be captured by the removal apparatus, replacing the lamp holder by disposing the lamp holder in an installation device, urging the installation device upward such that the lamp holder causes the pivoting members to urge outward, urging the installation device down in the annulus to allow the lamp holder to be urged downward, and removing the installation device.

Abstract: This application describes a back-lit transmissive display including a transmissive display and a variable index light extraction layer optically coupled to a lightguide. The variable index light extraction layer has first regions of nanovoided polymeric material and second regions of the nanovoided polymeric material and an additional material. The first and second regions are disposed such that for light being transported at a supercritical angle in the lightguide, the variable index light extraction layer selectively extracts the light in a predetermined way based on the geometric arrangement of the first and second regions. The transmissive display may be a transmissive display panel or a polymeric film such as a graphic.

Abstract: A display apparatus includes a light source and a display panel. The light source emits a light. The display panel includes a first polarizing plate, a second polarizing plate, a third polarizing plate, and a shutter. The first polarizing plate receives the light provided from the light source and incident to a lower portion thereof and linearly polarizes the light incident thereto. The second polarizing plate is disposed on the first polarizing plate and circularly polarizes the light exiting through the first polarizing plate. The third polarizing plate is disposed on the second polarizing plate and linearly polarizes the light incident thereto. The shutter is disposed on the first polarizing plate and mechanically deforms in a thickness direction of the first polarizing plate in response to an electrical signal. The display apparatus displays a grayscale in accordance with mechanical deformation of the shutter.

Abstract: An organic light emitting display apparatus includes a substrate, an organic light emitting portion comprising a plurality of organic light emitting devices formed on the substrate, and an encapsulation portion for encapsulating the organic light emitting portion. The encapsulation portion includes a porous layer formed on the organic light emitting portion, a planarization layer formed on the porous layer, and a barrier layer formed on the planarization layer. The porous layer prevents impurities from being concentrated at a part of the porous layer.

Abstract: A lamp module includes a rotatable base, a mount, a light emitter, and an optic. The base includes a plate and a projection extending from the plate. The mount is rotatably connected to the projection. The light emitter is connected to the mount. The optic is positioned over the light emitter. The light module can be used with a housing to form a luminaire.

Abstract: A solid-state linear lamp comprises a co-extruded component, the co-extruded component comprising an elongate lens and a layer of photoluminescent material. The elongate lens is for shaping light emitted from the lamp and comprises an elongate interior cavity. The layer of a photoluminescent material is located on an interior wall of the elongate interior cavity. The lamp further comprises an array of solid-state light emitters configured to emit light into the elongate interior cavity.

Abstract: A backlight module includes a light guide plate including a light incident surface having first and second light incident sections and a light propagation track that extends from the first light incident section into the light guide plate and delimits a light propagation path and is formed with an opening. A light bar includes first and second light sources respectively corresponding to the first and second light incident sections to allow light to enter the light propagation path to be reflected by the light propagation track for outward emission and allow light to enter the light guide plate for outward emission from the light emission surface. A control circuit is electrically connected to the first light source and the second light source for controlling ON/OFF states of the first light source and the second light source thereby allowing for displaying in a sectionized fashion.

Abstract: The present invention relates generally to lighting systems employed in outboard motors used as marine propulsion systems, and to marine vessel assemblies employing outboard motors with such lighting systems, and related methods of operation and implementation. In one example embodiment of a lighting system, the lighting system includes a first cowling panel portion including a reflective strip portion, and a second cowling panel portion that, in combination with the first cowling panel portion, at least partly defines an interior region within the cowling. The lighting system also includes a lighting source that is positioned within the interior region and positioned so that, when operating, first light is emitted toward the reflective strip portion and, upon the first light reaching the reflective strip portion, at least some of the first light is directed outward away from the cowling.

Abstract: A light-emitting panel of the present invention has a LED, a surface light-emitting member, a light source holder, and a holder supporting portion. The surface light-emitting member has a rectangular plate shape and at least one surface of front and back surfaces is surface-emitted by entering light from the light source into an incident edge. The light source holder holds the LED such that a light exit of the light source is arranged toward the incident edge. The holder supporting portion is fixed to the surface light-emitting member and hold detachably the light source holder. The light-emitting panel of the present invention can reduce effects of the light source due to thermal expansion of the surface light-emitting member, and easily replace the light source.

Abstract: In a lighting strip system having an elongate support arrangement for holding lamp units and lines for electricity supply and/or signal transmission, the support arrangement has an I-shaped profile in cross section, with two receiving regions, which run in the longitudinal direction of the support arrangement and are separated by a preferably vertically aligned partition, wherein the lines for electricity supply and/or signal transmission are arranged in one of the receiving regions and operational devices of the lamp units are arranged in the other receiving region.

Abstract: The present invention relates to an LED flat lighting device which facilitates heat emission, while being used in a small and medium imaging device for taking a picture or an image, and which is also formed into a thin and small size. The LED flat lighting device includes an LED module which emits light toward the front side; a flat-shaped first housing which is spaced apart from the LED module so as to form a convection part for discharging heat generated from the LED module; a fixing member which couples the LED module and the first housing to each other; and a circuit board which controls the LED module and which is installed at the first housing spaced apart from the LED module so that the convection part is interposed therebetween.

Abstract: The present invention relates to an illumination device comprising a number of light sources generating light and a number of light collecting means adapted to collect the generated light and to convert the collected light into a number of light beams that propagate along an optical axis. The light sources are arranged in a first group and second group of light sources which are individually controllable. The light collecting means and light sources are displaceable in relation to each other between a first position where the light collecting means collect light from the first group of light sources and convert the collected light into a number of first light beams, and a second position where the light collecting means collect light from the second group of light sources and convert the collected light from the second group of light sources into number of second light beams.