Abstract: An illumination device includes one or more light-emitting elements (LEEs) arranged to provide light; a light guide includes a receiving end and an opposing end, the receiving end being arranged to receive the light provided by the LEEs. The light guide further includes a pair of opposing side surfaces extending along a length of the light guide between the receiving and opposing ends. The light guide is configured to guide the received light in a forward direction, along the length of the light guide toward the opposing end, and transmit a first portion of the guided light into ambient through one or more of the opposing side surfaces as sideways leaked light. The illumination device further includes an extractor located at the opposing end and configured to output into the ambient a remaining portion of the guided light—that reaches the opposing end—as output light in backward directions.

Abstract: An optical module is provided in the present disclosure. According to an embodiment, the optical module may comprise a housing, two or more circuit board layers, and a light emitting chip. The two or more circuit board layers may be disposed in the housing and electrically connected to each other; and the light emitting chip may be electrically connected to at least one of the circuit board layers.

Abstract: A lighting appliance (1) comprises a light module (2) having a base (6) designed to receive a handle (5) provided with a grip stick (10), the handle (5) being arranged such that it can be inserted axially in removable manner into a ring (7, 7?) arranged on the base (6). The handle (5) is withdrawn axially from the base (6) by turning the ring (7, 7?) relative to the base (6).

Abstract: A headlight for a motor vehicle includes a light source, a projection lens, an optical element that corrects a chromatic aberration of the projection lens and a screen arranged between the light source and the projection lens, on which screen the corrective optical element is mounted at a distance from the projection lens.

Abstract: An illumination assembly is provided herein. The illumination assembly includes a first light source configured to generate an illumination pattern. A second light source is configured to generate an image within the illumination pattern. A lens is optically coupled with the first and second light sources. A controller is configured to control the activation state of the first and second light sources.

Abstract: A display device includes a display panel, and a backlight unit including a light guide plate which guides light in an upward direction toward the display panel and including a transmission region and a reflection region; a supporting pattern at the reflection region; a reflection layer on upper and side surfaces of the supporting pattern; and an insulating layer which covers the transmission region and the reflection layer at the reflection region.

Abstract: Provided is an optical unit which includes a light guide plate configured to emit light made incident thereon through a light incident side surface from one surface thereof, and a reflection sheet disposed to face the light guide plate, wherein the reflection sheet has a projection piece which protrudes with respect to a surface of the reflection sheet on one edge thereof. The projection piece is held with being in surface contact with any one side surface of the light guide plate, thereby the reflection sheet is held so as to face the light guide plate.

Abstract: A method and device for easily installing and removing an airport light on a runway using a fixture ring having a base ring; an annular lip operatively connected to and extending radially inwardly from the base ring; a lift bar operatively connected to the annular lip and extending from one side to the diametrically opposite side of the annular lip; and an extractor, operatively connecting the lift bar to the annular lip to cause the lift bar to move up and down relative to the annular lip.

Abstract: A lens system for LED based light fixtures having a substantially coplanar array of LED's with a requirement for a wide angle of illumination. And in particular, light fixtures comprising LED lights used in low bay applications.

Abstract: A backlight unit includes a light guide member including an incident surface extending in a first direction and a light source unit which generates a light, provides the light to the incident surface includes a body member extending in the first direction to define a cavity therein and includes a light exit part defined in one side portion facing the incident surface and connected to the cavity, a first light source disposed in the cavity and including a laser diode generating a first light having a first color, and a second light source disposed in the cavity spaced apart from the first light source in the first direction and including a laser diode generating a second light having a second color where the body member provides a third light having a third color obtained by combining the first and second colors to the incident surface through the light exit part.

Abstract: An illumination device includes a light-guide member having an annular shape provided with an incidence portion of a light in one portion, and illuminating the entirety by propagating an incident light; and a diffusion cover disposed on a side opposite to a light source relative to the incidence portion by interposing the light-guide member therebetween, and diffusing a light generated from the light-guide member. The diffusion cover includes a plate-shaped base portion covering the incidence portion side in the light-guide member, and a circular portion covering the remaining portions of the light-guide member by integrating an outer peripheral portion into the plate-shaped base portion.

Abstract: A vehicle lamp includes a semiconductor laser element configured to emit laser light, a condenser lens configured to condense the laser light, a phosphor configured to form white light by converting wavelength of at least a portion of the laser light condensed, and a reflector configured to reflect the white light. A light transmitting portion is formed in a portion, at which an extension path obtaining by extending an optical path of the laser light before contacting the phosphor is intersected with the reflector, of the reflector. A light confinement part is formed above the light transmitting portion.

Abstract: A system, method and apparatus for detecting a faulty bulb within an ornamental light string. The light string includes a plug at one end, a receptacle at an opposing end and a plurality of lamps in series arrangement coupled therebetween using an electrical wire. Each lamp includes a bulb, a socket coupled to the bulb, and a light source within the bulb that is electrically coupled to the electrical wire. The bulb includes a translucent cover coupled to a holder. The holder is removably coupled to the socket. The socket comprises a temperature-dependent color changing material, which can be thermochromic ink, which allows the outer surface of the socket to change colors depending upon its temperature thereby assisting in identifying a faulty bulb requiring replacement.

Abstract: A modular lighting system for providing light in various areas includes one or more canopies, a set of bars, a set of hangers for supporting the bars from canopies and, optionally other supports, a set of pendants with light emitting elements and a set of hangers for supporting the pendants from the bars. The bars include two segments with conductive rails disposed or imbedded in their inner surfaces. The hangers have one or two rods and bases shaped and sized for mounting on the bars with the rods contacting the conductive rails. A canopy with ferrules is used to attach the system to the ceiling or other structural surface. The canopy includes a cup and ferrules extending through the cup wall and supporting hangers attached thereto. The ferrules further provide electric power to the hangers.