Abstract: A light emitting device includes: a substrate having a main surface; a phosphor layer provided on the main surface and containing an LED element that emits primary light and a fluorescent particle that absorbs a part of the primary light and emits secondary light; and a transparent resin layer having a refractive index n and covering the phosphor layer. The transparent resin layer has an outer circumferential surface that forms a boundary between the transparent resin layer and the atmosphere. When a minimum circumference that includes the overall phosphor layer and is concentric with the outer circumferential surface has a radius r in a cut surface where at least a part of the outer circumferential surface takes a shape of an arc having a radius R, a relationship of R>r·n is satisfied. With such configuration, the light extraction efficiency is enhanced.

Abstract: A light and fan assembly has a generally tubular housing that has a turbine fan located on one end, the fan discharging a stream of air therefrom, and a light located on the opposing end, the light discharging a light beam therefrom in opposite direction to the direction of the air stream. A clip clips the housing to an appropriate surface such as a hat brim. A monocular is attached to the housing. Alternately, the fan can be held within an assembly that is pivotally attached to a lower surface of the housing.

Abstract: A lighting unit (1) is provided with a reflecting surface (2, 2?, 2?) for providing an output beam of light with at least two beam patterns. A first light source (5) and a second light source (7) are arranged to illuminate substantially identical surface areas of said reflecting surface (2, 2?, 2?) and are independently controllable from each other. The reflecting surface (2, 2?, 2?) is shaped and said light sources (5, 7) are positioned relative to said reflecting surface (2, 2?, 2?) so that said first light source (5) generates an output beam of light, having a first beam pattern and said at least second light source (7) generates an output beam of light, having a second beam pattern, different from said first beam pattern. A corresponding vehicle headlamp (10) comprises at least one lighting unit (1).

Abstract: A device for housing electronics and optics at the leading edge of a fire suppression operation. The device can be attached to a fire hose, water discharge outlet on a fire engine/ladder truck. The device can enhance fire ground visibility by means of a lighting source, enhance fire ground communication by means of a video monitoring source, enhance operation using infrared thermal imaging and enhance fire fighter safety by means of an atmospheric/biological metering/monitoring/warning source. All of these enhancements are preferably contained in one, unit with the ability to be deployed anywhere on the fire scene.

Abstract: A lighting apparatus includes a ring-shaped light guide including ring-shaped light entry and light exit faces; and light-emitting devices arranged in a ring at predetermined intervals, at positions opposite the light entry face. The light guide includes collimating portions that collimate light emitted from the light-emitting devices. Each of the collimating portions includes light-reflecting faces for collimating, in the direction of the optical axis of the collimating portion, light emitted from the corresponding light-emitting device. The light-reflecting faces include: an outer reflecting face; an inner reflecting face; a lateral reflecting face; and a large radius reflecting face. A distance from the optical axis to an optical axis-side end portion of at least one of the outer reflecting face, the inner reflecting face, and the lateral reflecting face is less than a distance from the optical axis to an optical axis-side end portion of the large radius reflecting face.

Abstract: A lighting structure for mounting a strip of LED's comprising a base member (10) having a channel (15) formed therein for receiving the strip (54) of LED's, a first member (22) of an attachment system extending along a portion of the base member (10), and a cover (34) having a second portion (42, 46) of an attachment system, said second portion (42, 46) of said attachment system mating with the first portion (22) of the attachment system to retain the cover (34) and base member (10) together and at least partially overlapping the channel to permit retention of the strip of LED's therein.

Abstract: A novel light-emitting device that is highly convenient or reliable is provided. The light-emitting device includes a framework, a flexible first light-emitting panel supported by the framework so as to form a first developable surface, and a flexible second light-emitting panel supported by the framework so as to form a second developable surface.

Abstract: A durable LED light engine includes a printed circuit board including LEDs mounted thereon positioned between a substantially U-shaped top enclosure and a bottom enclosure. Once assembled together using alignment holes and projections, the combination of the substantially U-shaped top enclosure, the printed circuit board and the bottom enclosure are held together with a molding material.

Abstract: A high power Tri-proof LED lamp, comprises a lower PC cover, an upper aluminum cover and two end caps. Each end cap includes an inner end cap and an outer end cap. Said upper aluminum cover and lower PC cover are secured with the inner end cap by four inner end cap screws. The outer end cap is secured with the inner end cap by outer end cap screws. The tri-proof LED lamp in accordance to present invention brings more possibilities for manufacture of lamp in any length for any specific application, and to have good heat radiation efficiency and a flexibility in power design, along with a long life cycle and the convenience in installation and maintenance. With implementation of the emergency power supply module, the lamp in accordance with present invention may be able to deal with emergency situation, i.e. to work for awhile when in the event of power failure.

Abstract: A headlamp 1 includes (i) a laser element 2 for emitting a laser beam, (ii) a light emitting section 4, including a sealing material made from an inorganic material, for emitting fluorescence upon receiving the laser beam emitted from the laser element 2, and (iii) a heat sink 7 for releasing, via a contact surface of the heat sink 7 which contact surface is in contact with the light emitting section 4, heat generated in the light emitting section 4 in response to the laser beam emitted onto the light emitting section 4, the light emitting section 4 existing within a range which is determined on the basis of the contact surface and with which desired heat releasing efficiency is obtained.

Abstract: An industrial spark plug (20) includes a central electrode (24) with a central base (30) formed of a nickel-based material and a central firing tip (32) formed of an iridium-based material. The central firing tip (32) has a tip thickness (tct) of 0.02 to 0.03 inches, a tip diameter (dct) of 0.1184 to 0.1776 inches, and an aspect ratio of 4.736 to 7.104. The central firing tip (32) is electron beam welded to the central base (30) to provide a robust joint therebetween. The central electron beam weld (36) includes a mixture of re-crystallized iridium-based material and re-crystallized nickel-based material extending continuously along and over the entire welding interface. The spark plug (20) also includes a ground electrode (26) with a ground firing tip (38) electron beam welded to a ground base (42).

Abstract: A light-emitting device for use in an image forming apparatus includes an apparatus body; a door disposed on and openably closable relative to the apparatus body; a lens mounted on the door; a light-emitting element that lights up the lens with light; and a bracket disposed on the apparatus body, configured to support the light-emitting element. The bracket is slidable in a direction in which the light-emitting element emits light. In a state in which the door is closed relative to the apparatus body, the bracket contacts at least one of a part of the door and a part of the lens, further movement of the bracket in the slidable direction is obstructed, and the light-emitting element and the lens are positioned adjacent to each other.

Abstract: A lighting fixture structure for a recessed lighting fixture includes a housing and a junction box. The lighting fixture structure further includes an arm. The arm is attached to the housing and to the junction box. The arm is rotatably attached to the housing.

Abstract: A heat-dissipation structure of a liquid crystal is disclosed. The heat dissipation structure comprises a light bar component having a circuit portion, the light bar component comprises a vertical plate and a horizontal plate, the vertical plate and the horizontal plate are formed by one-piece bending and are vertical to each other, and a plurality of LED light source modules are disposed on a surface of the vertical plate; and a back plate, the horizontal plate is disposed on the back plate. In the liquid crystal module and the heat dissipation structure, the bending light bar component is connected to the back plate. Compared with the traditional art, the liquid crystal module has narrower border, higher heat dissipation efficiency and longer life time.

Abstract: The present invention comprises a linear array of LEDs which can be utilized in conjunction with a product display case wherein the linear array of LEDs is operatively mounted upon, and disposed immediately adjacent to, a first end edge portion of a glass plate so as to effectively illuminate the glass plate by means of total internal reflection principles whereby the glass plate operatively serves as a light pipe such that the light emitted from a second opposite end edge portion of the glass light pipe can illuminate the interior portion of the product display case. Alternatively, the linear array of LED lights can be operatively mounted upon, and disposed immediately adjacent to, an edge portion of a glass shelf disposed within the product display case so as to likewise illuminate the glass shelf itself by means of total internal reflection principles whereby the illumination from the glass shelf serves to illuminate the products being displayed.

Abstract: A light-influencing element for influencing the light emission of essentially point light sources having at least two lenses which are juxtaposed and integrally connected to each other, each having a cavity defining a light entrance section of the lens, and a light exit surface opposite the light entrance section, at least two of the lenses being designed differently with regard to their light entrance sections.

Abstract: A docking system for the interchangeable attachment of personal devices such as lights, electronic devices, popular survival and safety equipment and the like, to the outer face of an article of clothing. It has a pair of discs held in a parallel, spaced arrangement by a pair of opposing stanchions so that a slot is created between the disks and the stanchions. Into this slot may be inserted an engageable tab connected normally to an arm that is affixed to, or extends from a personal device, such as an emergency light. The emergency light has a plethora of lighting modes that regulate which of the numerous disposed LEDs will be illuminated and in what pattern.

Abstract: A light assembly comprises an LED light source, a reflector, and an optical element assembly. The LED light source comprises a light emitting die and has an optical axis which extends from the light emitting die and perpendicular to a first plane. The reflector defines an optical cavity and has a reflective surface oriented to reflect light emitted by the light source incident to the reflective surface along a range of reflected angles. The optical element assembly comprises an optical element disposed in the path of the light emitted from the light source. The optical element is supported within the optical cavity by a connector arm, which has first and second ends. The first end is connected to the optical element and the second end supports the optical element assembly from behind the reflector.

Abstract: A lighting module may be provided that comprises: an optical plate; a base frame including a central frame disposed on the optical plate, a first frame coupled to the central frame, and a second frame coupled to the first frame; a side frame coupled between the optical plate and the second frame of the base frame; and a light source including a substrate disposed on the side frame and a light emitter disposed on the substrate, wherein the second frame is disposed on the light source, and wherein the second frame has an inner surface reflecting light from the light source to at least one of the first frame and the central frame.

Abstract: An LED light has a built-in, added-on, or snapped-on sound device such as a whistle to allow people to generate a loud sound that can be heard by other people during conditions such as an earthquake, flood, typhoon, hurricane, tornado, fire, bombing, tsunami, terrorist attack, and so forth. The LED light normally serves as non-portable light device which can be installed in a certain location, but which can be removed in the event of an emergency to serve as a power fail or emergency light. The LED light, without the sound device, may also be applied to an electrical outlet wall plate cover.