Abstract: An optical engine of a light emitting diode (LED) light module comprises a heat dissipation device, an LED light bar and an optical component. The heat dissipation device comprises a base plate and a plurality of fin plates vertically welded onto a surface of the base plate. The LED light bar is disposed on an opposite surface of the base plate so that the LED light bar can dissipate heat through the fin plates. The optical component having a space for accommodating the LED light is provided to form a desired light distribution pattern.

Abstract: An optical construction comprises an optically transmissive first layer having a first and second major surfaces, and an optically transmissive second layer adjacent the first major surface and defining an interface. The optically transmissive second layer comprises a binder and optical beads. The binder comprises from 55 to 99.9 percent by weight of polyethylene oxide segments. A weight ratio of the binder to the optical beads is in a range of from 44:56 to 50:50. A light source is disposed in a fixed orientation relative to the optically transmissive second layer. Methods of making optical constructions, and electronic devices containing them, are also disclosed.

Abstract: An LED light has a pinhole-imaging function for dark area use as a plug-in wall outlet light, direct current (DC) operated light, or interchangeable power source light to project a shaped image to a surrounding environment. Tiny shaped pinholes can create a fine image of desired message, data, logo, or time on a ceiling, walls, floor, optics means surface or other desired surface. At least one pinhole-means may be incorporated with an LED and parts selected from a housing-member, plastic film openings, cut-outs, transparent material piece, translucent material piece, adjust-means, sealed-unit, battery-pack, paper material, plastic material, metal material, wood material, geometric shape substrate, AC adaptor and jack means, and/or solar power or wind power generator to project the desired image, message, data, logo, to the surrounding environment, which may include any combination of ceiling, walls, floor, or other desired surfaces(s).

Abstract: Disclosed herein is a lighting device including a blue light-emitting element adapted to emit a blue light beam; and a green phosphor layer which is disposed apart from the blue light-emitting element and can function as a light diffusion layer, the green phosphor layer including a green phosphor adapted to emit green fluorescence when excited by the blue light beam, the green phosphor having a refractive index of 1.49 or more and a quantum efficiency of 79% or more.

Abstract: Optical elements having components made from high refractive index materials (RI?1.6) and lamp assemblies incorporating such elements. Various optical elements, such as total internal reflection lenses, can be fabricated from materials having a higher index of refraction than materials typically used in such elements. The compact optical elements have at least one internal reflection surface that directs radiant energy (e.g., light) from a receiving end to a transmitting end. By using a high refractive index material, a lens can be fabricated that directs a greater portion of the light emitted from a source into the lens toward the transmitting end of the lens. Thus, less of the light spills out of the lens at a surface where emission is not intended, reducing the number of lossy bounces needed to direct the light in a particular direction.

Abstract: An electronic device includes a case, a multi-directional input unit having an annular base and a flange that extends from an outer circumferential surface of the annular base and fits part of the case, the flange guiding light emitted from a light source and radiating the light; and a cover having a through-hole through which part of the multi-directional input unit passes, the cover abutting the flange and being secured to the case.

Abstract: A light emitting diode contains a light emitting diode chip and a light directing structure disposed thereon. The light directing structure has a pair of connected hemi-ellipsoids and an interface interposed therebetween. Each hemi-ellipsoid comprises a bottom surface in a shape of an incomplete ellipse and an ellipsoidal surface connected to the bottom surface and the interface, wherein the largest vertical distance from the ellipsoidal surface to the bottom surface is longer than a height of the interface. The bottom surface has a major axis and a minor axis intersected to define a center, wherein the interface is connected to the minor axis.

Abstract: The invention relates to illumination devices (1) with a light source (2) and an afterglow surface (4) comprising a phosphor. The phosphor has an afterglow emission peak at a temperature above about 100° C. and/or has the formula (Sr1-zMz)4Al14O25:Eu, Ln, Xk with M ? {Ca, Ba, Mg}, Ln ? {Dy, Nd}, X ? {Yb, Tm, Sm}.

Abstract: A triangle prism (PR1) that refracts light coming from a first light-reception face (RS1) is formed on a first outgoing face (IS1) of a first prism sheet (PS1). Furthermore, one of the side surfaces (SS1a, SS2a) of that triangle prism (PR1) will refract light coming from the first light-reception face (RS1), and the other side surface will refract light coming from that side surface.

Abstract: A bulb adapted to fit over and around a light-emitting diode emitting a light of a first hue in a predetermined radiation pattern defines an inner cavity for housing the light-emitting diode with a cross-sectional geometry based on the predetermined radiation pattern of the light-emitting diode. The bulb is composed of a light-transmitting material and a light color-converting material, with the light color-converting material converting the light of the first hue into light of a desired hue, which is then viewed over a light-emitting surface of the bulb.

Abstract: A backlit display for sink and vent hood assemblies is disclosed. The assembly has a body with an interior and an exterior with a front and sides. A frame is mounted to the front of the body and defines a window. A support panel is installed in the frame and has a light. A mounting bezel is mounted to the frame in front of the window. The mounting bezel defines a pocket between the mounting bezel and the frame. The assembly also comprises a decorative panel that is mounted in the pocket between the mounting bezel and the frame in front of the window. The light backlights and illuminates the decorative panel in front of and away from the body through the window.

Abstract: A light-emitting device of the present invention includes: a LED chip 10; a chip mounting member 70 having a conductive plate (heat transfer plate) 71 one surface side of which the LED chip 10 is mounted on and a conductor patterns 73, 73 which is formed on the one surface side of the conductive plate 71 through an insulating part 72 and electrically connected to the LED chip 10; and a sheet-shaped connecting member 80 disposed on the other surface side of the conductive plate 71 to connect the conductive plate 71 to a body of the luminaire 90 which is a metal member for holding the chip mounting member 70. The connecting member 80 is made of a resin sheet which includes a filler and whose viscosity is reduced by heating, and the connecting member 80 has an electrical insulating property and thermally connects the conductive plate 71 and the body 90 of the luminaire to each other.

Abstract: A substantially hemispherical lens surrounding an LED die is described that creates a sparkle as an observer views the lens from different angles. The lens is formed of an interconnected array of 100-10,000 or more lenslets. Each lenslet focuses an image of the LED die at an output of the lenslet such that the LED die image area at the output is less than 1/9 the area of the LED die to create a substantially point source image of the LED die at an outer surface of the lens. When the LED die is energized, the shape of each lenslet causes point source images of the LED die to be perceived by an observer at various viewing angles, such that the emitted LED light appears to sparkle and speckle as the observer moves relative to the lens.

Abstract: A light guide is a quarter of cylinder in shape and includes a cylindrical emitting surface, an incident surface adjacent to and facing away from the cylindrical emitting surface, and a connecting surface connecting the cylindrical emitting surface and incident surface. The light guide defines five a number of grooves in the incident surface. Each groove is bounded by two surfaces. The inclined angle of the two surface is designed to satisfy a set of conditions to improve light uniformity of the cylindrical emitting surface.

Abstract: A light-emitting device of the present invention includes: a LED chip 10; a chip mounting member 70 having a conductive plate (heat transfer plate) 71 one surface side of which the LED chip 10 is mounted on and a conductor patterns 73, 73 which is formed on the one surface side of the conductive plate 71 through an insulating part 72 and electrically connected to the LED chip 10; and a sheet-shaped connecting member 80 disposed on the other surface side of the conductive plate 71 to connect the conductive plate 71 to a body of the luminaire 90 which is a metal member for holding the chip mounting member 70. The connecting member 80 is made of a resin sheet which includes a filler and whose viscosity is reduced by heating, and the connecting member 80 has an electrical insulating property and thermally connects the conductive plate 71 and the body 90 of the luminaire to each other.

Abstract: A lighting device is generally illustrated having a light body having forward facing light sources including a visible white light source, visible colored light source and an infrared light source. Additionally, a side facing light source is provided. The light body also includes switches for activating the visible light sources and a three-position switch for activating the IR light source and the side facing light source. A light source has a first lens. Additionally, a second lens is included in a light illumination path of the light source to focus light illumination into a desired beam. The lighting device further includes a light transparent gel disposed between the first lens and the second lens for enhancing efficiency of light transmission from the first lens to the second lens.

Abstract: An LED illuminating device includes an optical section, an electrical section, and a heat dissipation section provided with a heat dissipation device. The heat dissipation device includes a hollow metal tube, a bottom cover plate and a top cover plate respectively sealing a bottom and a top of the metal tube, and a tubular member received in the metal tube and axially defining a vapor passage channel therethrough. A condensate passage channel is defined between the metal tube and the tubular member. An evaporating chamber is defined between the bottom of the tubular member and the bottom cover plate. A condensing chamber is defined between a top of the tubular member and the top cover plate. First and second porous wicks are in the metal tube and attached to the bottom cover plate and the condensate passage channel respectively. A working fluid is saturated in the first porous wick.

Abstract: A surface of a transparent substrate 5 which is adjacent to a light emitting body has a surface structure 13 that is defined by dividing the surface into a plurality of linear segments of width w which are inclined so as to extend in a specific direction in a plane of the surface and dividing the linear segments into minute regions aligned along the longitudinal direction of the linear segments such that the largest inscribed circle of the minute regions has a diameter from 0.2 ?m to 1.5 ?m. Each of the minute regions is formed by a raised or recessed portion formed in the surface of the transparent substrate 5. The proportion of the raised portions and the proportion of the recessed portions, P and 1?P, are determined such that P is in the range of 0.4 to 0.98.

Abstract: A lighting device, a light spreading plate for the lighting device and a method for manufacturing the same are provided. The lighting device comprises a light source plate and the light spreading plate. The light source plate comprises a plurality of light sources. The light spreading plate comprises a light travelling layer formed with a plurality of light spreading units. Each of the light spreading units is formed with a main body being defined with a top surface, a bottom surface and a peripheral. The main body has a thickness being tapered towards the peripheral. The main body comprises a top surface having a cone-shaped recess and a bottom surface having a bowl-shaped recess. The cone-shaped recess and the bowl-shaped recess of each of the spreading units are opposite to each other, and one of the cone-shaped recess and bowl-shaped recess is fitted for one of the light sources.

Abstract: A light source for use in a device, for example in a dental device, comprising a semiconductor element disposed in a housing wherein the semiconductor element comprises a light-emitting surface. The light source further comprises a socket that extends from a side of the semiconductor element opposite the light-emitting surface, the socket being provided for being placed in a frame located in the device, wherein the socket comprises contact elements and lines for power supply to the semiconductor element. The light source is particularly robust and long-lasting.

Abstract: Suspended optical film assemblies including a frame, an optical film, and an elastomeric film are disclosed. The elastomeric films include a first attachment region, a second attachment region, and a free region between the first and second attachment regions. The first attachment region is affixed to the frame; the second attachment region is affixed to the optical film, so that the free region is in tension and supports the optical film within the frame. The tension in the elastomeric film free region can help maintain flatness and reduce distortion in the optical film during environmental changes that influence dimensional changes in the frame, optical film, and elastomeric film.

Abstract: A polyester film includes a polyester layer (W layer) containing an aromatic polyester resin (A) and a component (B) incompatible with the polyester resin (A), wherein the incompatible component (B) contains an acid-denaturated polyolefin resin (b2) and is dispersed as dispersion pieces with a flatness of 10 or higher in the polyester layer (W layer), and wherein volume occupancy of the dispersion pieces in the polyester layer (W layer) is 3 vol % to less than 50 vol %, and volume occupancy of voids in the polyester layer (W layer) is less than 3 vol %.

Abstract: The present invention provides a light emitting device which has high reliability and long service life by suppressing the sealing resin from peeling off the inner edge of the opening of the recess of the housing.

Abstract: A decorative light and a method for making a decorative light having layers of distinct flexible materials on a bulb are disclosed.

Abstract: An exemplary illumination device includes a solid-state light source and a light diffusion plate. The solid-state light source is configured for generating light, and the solid-state light source defines a central axis. The light diffusion plate is arranged generally adjacent to the solid-state light source. The plate includes an incident surface and an output surface at opposite sides thereof. At least one of the incident surface and the output surface has parallel micro-structures each having a length parallel to a first reference axis. The micro-structures are arranged in two groups at opposite sides of the central axis, and the micro-structures of the two groups are symmetrical relative to each other across the central axis. The first micro-structures are configured for increasing a radiating range of the light entering the plate along respective opposite directions of a second reference axis substantially perpendicular to the first reference axis.

Abstract: A light-emitting device of the present invention includes: a LED chip 10; a chip mounting member 70 having a conductive plate (heat transfer plate) 71 one surface side of which the LED chip 10 is mounted on and a conductor patterns 73, 73 which is formed on the one surface side of the conductive plate 71 through an insulating part 72 and electrically connected to the LED chip 10; and a sheet-shaped connecting member 80 disposed on the other surface side of the conductive plate 71 to connect the conductive plate 71 to a body of the luminaire 90 which is a metal member for holding the chip mounting member 70. The connecting member 80 is made of a resin sheet which includes a filler and whose viscosity is reduced by heating, and the connecting member 80 has an electrical insulating property and thermally connects the conductive plate 71 and the body 90 of the luminaire to each other.

Abstract: There is provided a lighting system having a high spatial resolution appropriate to a high-frequency component by evanescent waves in a negative refraction lens. The lighting system includes a light emitter thin film (106) which includes a light emitting material which emits light when an energy is applied, a cathode (101) for applying an electron beam (102) which is the energy, to the light emitter thin film (106), and a negative refraction lens (110) which is formed of a material exhibiting negative refraction, and has an optical system for projecting light emitted from the light emitter thin film (106), on an object.

Abstract: A flexible translucent sheet is folded to have portions of its bounding edge closely situated in overlapping relationship, and these overlapping portions are illuminated by a light source. The illumination is transmitted through the interior of the sheet to any adjacent unfolded area of the sheet, which may bear emission areas which are treated so that the light emits from the sheet at these areas. Preferred versions of the invention have a series of legs cut into one edge of the sheet, and the legs are then bundled in stacked relationship, with a light source providing light input into the bundle.

Abstract: A lamp that can be used in a refrigerated or cold environment where an overall light output measured on a target plane is not significantly reduced due to condensation or fog includes a housing including a translucent cover, an LED disposed in the housing, and an anti-fog film. The LED is disposed in the housing with relation to the translucent cover such that light from the LED passes through the cover. The anti-fog film is disposed on at least one of the surfaces of the translucent cover.

Abstract: A display device comprising a body for housing first and second transparent members and a carrier that supports sources of light. The first member is spaced from the second member such that a first plenum chamber is formed between the first and second members. The carrier is spaced from the second member on a side of the second member opposite the first chamber such that a second plenum chamber is formed between the second member and the carrier. A spacer separates the carrier from the second member by a predetermined amount. The sources of light being directed at the first and second members and the first and second chambers. The first chamber is filled with optical particles to diffuse the light passing through. The carrier applies a load, via the spacer, on the second member such that the particles are maintained at a pressure.

Abstract: It is an object to provide a compact fluorescent lamp having a diffusion film applied to the inner surface of the outer tube globe, in which the ultraviolet light transmissivity is lower than or equal to 25% and the visible light transmissivity is greater than or equal to 95% without increasing the skin failure rate of the film. A compact fluorescent lamp according to the present invention relates to a compact fluorescent lamp in which a light emitting tube is accommodated in an outer tube globe; wherein a diffusion film for diffusing a visible light radiated from the light emitting tube and absorbing an ultraviolet light radiated from the light emitting tube is formed on an inner surface of the outer tube globe; and the diffusion film consists of TiO2 and SiO2, and an average particle diameter of SiO2 is 1 to 10 ?m.

Abstract: A self-contained illuminating device for mounting on or in a closed container for illuminating both the enclosed space of the container and an area of the device which has an insignia or graphic imposed thereon, e.g. for advertising purposes. The device has a shell made of a translucent material and a miniature light source. The shell is adapted to function as an optical waveguide for propagating light emitted by the light source down the shell while simultaneously illuminating surfaces of the shell bearing the advertisement. Additionally, the shell may include a light scattering element for distributing light at a periphery of the shell. The illuminating device comprises a circuitry, including a position-sensitive switch, e.g. a tilt switch, for activating the light source dependent on the position of the device.

Abstract: An illumination device is provided. The illumination device includes: a light guide comprising: an outer peripheral face; one end face; and the other end face, wherein a groove is formed in the outer peripheral face along a longitudinal direction of the light guide; a light source provided to face the one end face of the light guide; and a diffusion reflector provided to face the other face of the light guide.

Abstract: A total-internal-reflection (TIR) lens for color mixing includes a body member having an outer surface and an interior open channel extending longitudinally through the body member. The body member and the interior open channel are substantially symmetric with respect to an optical axis, and the outer surface is shaped to provide total internal reflection. The body member has a first end surface region at a first end of the open channel for accommodating a light source and a second end surface region opposite the first end region. The second end surface region includes a plurality of refractive surface regions positioned around the second end region of the open channel. The lens is configured to provide projected light substantially centered with respect to the optical axis when the light source is positioned off the optical axis. In a specific embodiment, a lighting apparatus for providing centered white light includes such a lens and a plurality of light sources.

Abstract: An illumination system for imaging illumination having at least one compact light source. The illumination system comprises a reflector having a reflector contour, the light source being accommodated in the vicinity of the reflector contour. A compact diffusing medium is accommodated at the focal point of the reflector, the light from the light sources being directed substantially onto the diffusing medium and, from there, being diffused onto the reflector contour, with the result that the light leaving the reflector is emitted homogeneously.

Abstract: A light source unit that prevents deterioration of display qualities, caused by “sagging” of a diffuser, includes a light source, a diffuser, and a light source chassis, the diffuser having a main surface facing the light source, the diffuser being arranged within the light source chassis. The light source unit includes a mounting base at least below a corner of the diffuser, the mounting base includes a diffuser-mounted portion and a projection portion, the projection portion being arranged along an outer edge of the diffuser, the projection portion has a light-shielding property, and the projection portion is arranged to be above a level of an upper surface of the diffuser.

Abstract: A lighting device includes a plurality of self-luminous elements formed on a substrate and emitting different wavelengths of light from each other, a hemispherical lens structure formed on the substrate to cover the self-luminous elements, and a plurality of translucent spherical particles covering a surface of the lens structure. Light emitted from the self-luminous elements passes through the lens structure and enters the translucent spherical particles where its direction is largely inclined to scatter due to a difference in refractive index between the translucent spherical particles and air. Consequently, different wavelengths of light from the self-luminous elements are mixed to produce a desired color of light.

Abstract: The present invention relates to a decorative lamp comprising a source of light and a shade of a translucent or semi-opaque porcelain material and its manufacturing method. The lamp further includes at least one decorative element of a material of greater opaqueness than that of the porcelain shade located on an inside interior surface of the shade to block the passage of light to reveal its form when the source of light is turned-on and not being visible to the naked eye.

Abstract: Light emitter excitation light (108) of a wavelength ?1 emitted by a light source (101) is collected on a light emitter (107) by a collective lens (102). The light emitter (107) is held on a substrate (104), and emits fluorescent light of a wavelength ?2 when the light emitter excitation light (108) of the wavelength ?1 is irradiated. A diameter of the light emitter (107) being formed to be smaller than the wavelength ?2, this fluorescent light includes evanescent waves, and advances through the substrate (104) as an object illuminating light (109) having the light emitter (107) as a point light source.

Abstract: A light collar includes an outside diameter, a first inside diameter, a second inside diameter greater than the first inside diameter forming a bore for receiving an ampoule well, and at least one port in an outer surface of the collar having a depth for receiving a light source.

Abstract: An optical device can produce a virtual image visible from a vantage point. The device has one or more lenses, a source for producing light, and an internally illuminable, non-transparent display object. The source can produce light in the display object in order to internally illuminate the display object and cause it to predominantly radiate internal light. The lens(es) can project a virtual image of the display object. In some instances two or more devices with matching display objects may be used to project one virtual image of the display objects. Each device is angled in order to increase the field of view of the virtual image.

Abstract: An exemplary diffuser plate includes a diffuser film. The diffuser film includes a plurality of diffusion particles distributed therein. A refractive index of the outer shell of each diffusion particle exceeds that of the inner surface of each diffusion particle.

Abstract: A display panel with improved reflectivity A display or lighting element comprising at least one pixel element for producing or controlling light is provided. The pixel element has a light emitting surface. The display or lighting element furthermore includes a substantially transparent material above at least the light emitting surface. The substantially transparent material above the light emitting surface has a modified roughness so as to decrease the reflectivity of the substantially transparent material above the light emitting surface.