Abstract: The present invention is capable of irradiating a desired figure, a character and the like onto an object with a simple configuration and further capable of easily changing the figure, the character and the like, and includes an LED light source, a first refractive element adapted to refract light emitted from the LED light source to form an image of a light emitting shape when viewed in an optical axis direction of the LED light source at a predetermined position and a casing accommodating the LED light source and the first refractive element and having a light outgoing aperture for emitting the light applied from the first refractive element to the outside.

Abstract: Apparatus, systems, architectures, and methods provide interlocked modular lighting array units to operate as a single large light source. The modular lighting array units may be connected by a network, and the modular lighting array units may communicate and send and receive control or status signals. In some embodiments, the signals may correspond to status of light sources or LEDs, lighting functions, effects routines, and various other signals of communication.

Abstract: Light redirecting film comprises a thin optically transparent substrate having a pattern of individual optical elements formed as projections on a light exit surface of the film. At least some of the projections comprise a dome-shaped surface on the light exit surface.

Abstract: A light emitting device 107 includes a surface structure 113 in a surface of a transparent substrate 105 which is adjacent to a light emitting body. The surface of the transparent substrate 105 is divided into minute regions, without leaving any gap therebetween, such that the diameter of the largest one of the inscribed circles of the minute regions is from 0.2 ?m to 1.5 ?m. Each of the minute regions is in the form of a protrusion or recess. The proportion of the protrusions and the proportion of the recesses are P and 1?P, respectively, and P is in the range of 0.4 to 0.98. At least part of the minute regions has a micro periodic structure 114 that is formed by indentations and projections.

Abstract: An optic for producing an asymmetrical beam of light for restricting light output to an area below a midplane of the optic, and for directing light to the sides or down from the midplane.

Abstract: A clamp for an elongated tube style white such as a versa tube. The clamp has one fixed side that holds the versa tube's mounting structure therein. The other side of the clamp is movable, and pivots between an open position and a closed position. In the closed position, the lamp is held into place, and in the open position the lamp can be removed. A single screw that holds the clamp into the open or closed position is knurled and hence the device can be removed without any tools. The two sides of the clamp occupy different longitudinal positions so that they can be placed directly next to each other, and one opened without moving or disturbing the other since the two sides are in different longitudinal positions.

Abstract: An electronic lighting instrument features separate optical assemblies for flood lighting and spot lighting. The optical assemblies include primary, secondary, and tertiary optical elements. The housing of the instrument features a trilobal cross section and includes dust-and-moisture-sealed push buttons and lenses as part of the housing construction. Self-aligning assemblies to ensure correct electrical and mechanical assembly are provided. The housing also self-aligns with a mating docking station for recharging the instrument batteries in situ. The lighting instrument may be controlled by a microprocessor circuit to provide floodlight and spotlight beams and several operational states thereof depending on the need for illumination or signaling.

Abstract: A lighting device includes a housing, and a light-emitting module mounted in an accommodation chamber inside the housing and carrying a set of light-emitting devices on a circuit board thereof for emitting light, a plurality of refracting prisms for refracting a part of the light emitted by the light-emitting devices horizontally toward two opposing sides through the light transmissive peripheral wall of the top cover shell of the housing and two opposing double-beveled reflectors for reflecting the other part of the light emitted by the light-emitting devices toward the outside through the light transmissive peripheral wall of the top cover shell of the housing in the same opposing directions. Thus, the invention extends the luminous range of the light-emitting devices, enhances the luminance and reduces light loss.

Abstract: A single piece light guide is disclosed herein. The single piece light guide may include a light rod and a lens. The single piece light guide may be formed using injection molding. The light guide may have one or more regions between the light rod and the lens. A housing may be provided for the light guide. The housing may have an opening that physically supports the light rod. Therefore, the light rod may be secured into place, which may prevent misalignment during use. The one or more regions between the light rod and the lens may assist in assembling and holding the light guide in the housing.

Abstract: A single piece light guide is disclosed herein. The single piece light guide may include a light rod and a lens. The single piece light guide may be formed using injection molding. The light guide may have one or more regions between the light rod and the lens. A housing may be provided for the light guide. The housing may have an opening that physically supports the light rod. Therefore, the light rod may be secured into place, which may prevent misalignment during use. The one or more regions between the light rod and the lens may assist in assembling and holding the light guide in the housing.

Abstract: A light extraction film having multi-periodic zones of engineered nanostructures. The light extraction film includes a flexible substrate, a layer of low index engineered nanostructures applied to the substrate, and a high index backfill layer applied over the nanostructures. The multi-periodic zones include a repeating zone of the nanostructures having multi-periodic characteristics. The repeating zone includes first and second sets of nanostructures having different periodic pitches. The multi-periodic zones can be used to enhance the light output and tune the angular luminosity of organic light emitting diode devices.

Abstract: A lighting device includes an optical lens, a scattering layer mounted on an outer surface of the optical lens, and a lighting module mounted on the optical lens and emitting a plurality light beams which are reflected and/or refracted by the optical lens and are reflected and/or refracted by the scattering layer. Thus, the light beams of the lighting module are initially reflected and/or refracted by the optical lens and are then reflected and/or refracted by the scattering layer so that the light beams of the lighting module are distributed in a two-stage manner by the optical lens and the scattering layer and are scattered and diverged in different angles and directions evenly and smoothly so as to provide a fully developed lighting effect, thereby enhancing the lighting efficiency of the lighting device.

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: Disclosed is a projector-type headlight that can include a light emitting device, a reflector having a reflection surface to reflect a light from the light emitting device forward, a projector lens to project the reflected light from the reflection surface forward, the projector lens being a resin molding, and a shade to form a light distribution pattern having a light-dark border line by blocking a part of the reflected light heading from the reflection surface to the projector lens. A gate trace can be formed in a circumference portion of the projector lens. The gate trace can be provided lower than a horizontal surface on which a light axis of the projector lens passes through, and at the same time can be provided in a state of being shifted either leftward or rightward from a vertical surface on which the light axis of the projector lens passes through.

Abstract: A lens for a flashlight or other lighting unit provides for focusing light from a source, such as an LED, to provide a light beam adjustable between a spot beam and a wide beam. The lens includes a lens body with a front face, a rear LED-receiving well, and a side surface extending between the front face and the rear well. The front face includes a central surface surrounded by an annular concave surface. The rear well includes a space for the LED to be adjusted in position. The rear well space is defined by a concavely-curved sidewall and a concavely-curved base. The concave curvature of the sidewall and base may be Bezier curves.

Abstract: The present invention relates to lens assembly for an illumination device comprising a number of optical lenses and a lens holder comprising a mounting plate having a number of holes, said number of holes being adapted to accommodate said lenses. At least one of said holes is at least partially surrounded by a number of resilient fingers extending backward from the mounting plate, said resilient fingers being adapted to engage with one of said lenses and secure said lens in said holes. The present invention relates also to an illumination device comprising such lens assembly and a method of manufacturing the illumination device.

Abstract: A lighting device such as a solid state downlight includes a lens structure with at least one integrally formed trim retaining element, and a trim structure including at least one lens structure engaging element, wherein the at least one lens structure engaging element is arranged to removably engage the least one trim retaining element, such as by rotating the trim structure. A generally cylindrical portion of the trim structure may be arranged to surround a central portion of the lens structure, thereby reducing or eliminating light piping and eliminating visible attachment elements for the trim structure.

Abstract: A directional light distributing optical element includes a light incident surface and a light emission curved surface. The light incident surface receives a light emitted by a light source. The light emission curved surface and a first plane are intersected to form a first curve. The first curve has a plurality of first curve segments, and each first curve segment includes at least three first tangent points. After passing each first tangent point along a connecting line of the light source and each first tangent point, the light exits along a first axis, and an included angle formed between the first axis and an optic axis is greater than ?15° and smaller than 15°. Thus, the light after passing the directional light distributing optical element forms a one-dimensional directional light.

Abstract: A light emitting device includes a light emitting module and a complex lens, which is disposed on the light emitting module and includes first to fourth lens portions. A first group of light beams emitted from the light emitting module and outputted from the first lens portion travels through the first lens portion with total internal reflection, a second group of light beams emitted from the light emitting module and outputted from the fourth lens portion travels through the second, third and fourth lens portions with total internal reflection, a third group of light beams emitted from the light emitting module and outputted from the fourth lens portion travels through the third and fourth lens portions with total internal reflection, and a fourth group of light beams emitted from the light emitting module is outputted from the fourth lens portion.

Abstract: An elongated lens profile having reverse total internal reflection (TIR) features that improve light extraction when the lens is used in conjunction with a plurality of light emitters. Solid state light emitters, such as LEDs, are arranged proximate to the elongated lens along a longitudinal axis of the lens body. The emitters, which may be grouped in clusters, emit toward a receiving surface of the lens. The receiving surface includes a plurality of reverse TIR features, also disposed along the longitudinal axis. These features may be defined by a series of recessed areas spaced along the longitudinal axis to correspond with the light emitters which can protrude into the negative space created by the recessed features. The recessed features may have more than one shape. The reverse TIR features improve light output uniformity, reducing hot spots along the lens, and improve output efficiency.

Abstract: Provided is a backlight device having: a light source element having LEDs and a lens expanding light from the LEDs; a housing containing the element; a diffuser plate covering an opening portion of the housing; and a reflection sheet reflecting light emitted from the element, toward the diffuser plate. The LEDs are arranged in one or more rows, at a central zone. The lens has an incident surface receiving light from the LEDs, and an exit surface from which the light goes out, being expanded. In the exit surface, in an optical-axis-containing sectional plane viewed laterally along the orientation in which the LEDs are arrayed, the len's curvature C in a minute interval along the exit surface is maximum in a range 60°<?i<80°, where ?i is the angle between the optical axis, and a line connecting the center of the minute interval and the position of a light source on the optical axis.

Abstract: A photo-sensor type touch device includes a screen, two light modules, a sensor, and a calculating unit. The screen has a displaying region to show images thereon. The light module emits linear invisible light to the displaying region. The invisible light is substantially perpendicular to a normal of the displaying region. The sensor senses a change of the invisible light on the displaying region when an object approaches the displaying region, and sends a signal out. The calculating unit is electrically connected to the sensor to receive the signal and calculate the signal to obtain a location of the object on the displaying region.

Abstract: A lighting fixture includes a first support having at least a first surface and a second surface opposite the first surface, a first plurality of ornaments such as crystals attached to the first surface of the first support, and an opaque frame disposed around the first support. The opaque frame has a first opening through which the plurality of ornaments are observable. At least one light source is disposed in the frame for directing light onto at least some of the first plurality of ornaments which light is at least one of refracted and reflected from the first plurality of ornaments.

Abstract: A condenser lens, lamp and camera applicable to an optical area are provided. The condenser lens is a physical glass lens and has an incident surface, an exit surface and a side surface arranged around a central axis of the condenser lens. The side surface is lattice-shaped. The condenser lens of the present invention adopts a glass material, which improves a light extraction efficiency of the lens and reduces a light energy loss. The lattice-shaped side surface of the lens reflects lights in different directions by multiple small-area lattice units instead of reflecting lights by a single curved surface. The reasonably-designed lattice structure enables each lattice unit reflecting lights in a predetermined direction, which may realize a uniform illumination at a small angle and is beneficial to spot-lighting. This condenser lens may be widely applied in all sorts of illuminating lamps or an illumination system of a camera.

Abstract: The present embodiment relates to a metamaterial for deflecting electromagnetic wave, includes a functional layer made up by at least one metamaterial sheet layer, each of the metamaterial sheet layers including a substrate and a number of artificial microstructures attached onto the substrate. The functional layer is divided into several strip-like regions. The refractive indices in all the strip-like regions continually increase along the same direction and there are at least two adjacent first and second regions, wherein,the refractive indices in the first region continually increase from n1 to n2, the refractive indices in the second region continually increase from n3 to n4, and n2>n3. The metamaterial of the present invention that deflects electromagnetic wave has a number of regions disposed thereon. In each region, the refractive indices can continuously increase or decrease so that the electromagnetic waves within the regions will be slowly deflected.

Abstract: A lamp is provided which is suitable for use in low-profile applications. The lamp includes a light source and a lens. The lens includes a first surface opposite a second surface, where the second surface includes an injection surface and the first surface includes a multi-faceted optical element converging towards the injection surface. The light source injects light into the lens via the injection surface and the light refracts through the first surface while total internally reflecting off the first surface and the second surface toward the periphery of the lens.

Abstract: A light fixture has an array of light emitting diodes arranged on a substrate, an array of lenses arranged adjacent the diodes, each lens corresponding to a diode, and having a center, the array of lenses arranged such that the each lens center is offset from a location of the diode. A light fixture has an array of light emitting diodes arranged in a x-y grid on a substrate, and an array of lenses arranged adjacent the array of light emitting diodes, each lens corresponding to a diode and having a center, the array of lenses arranged such that each lens center is offset a distance along a location axis of the diode.

Abstract: In a variable shaped lamp shade of an LED lamp, the lamp shade is made of a translucent material matched with an LED lamp strip and a lamp holder and includes at least one strip-shaped optical refraction unit having an external refractive surface, an internal refractive surface corresponding to the external refractive surface, and an assembling structure for matching the lamp holder. The external refractive surface or internal refractive surface is a curved surface without an inflection point and the curved surface has a constant or gradually changing curvature; and a non-curved surface is formed on the other side. The variable shaped lamp overcomes the problems of conventional LED lamp strips having a low illumination and a non-uniform illumination caused by a direct projection or an installation of a conventional lamp shade, and a low light utility caused by a too-large illumination range.

Abstract: A miniaturized laser emitting module includes a substrate, a laser diode and a lens element. The substrate includes an installation channel, the laser diode is installed in the installation channel of the substrate, and the lens element is installed in the installation channel of the substrate in a light-emitting direction of the laser diode. The lens element includes a collimating lens portion being adjacent to the laser diode and an undulating lens portion being distant from the laser diode. The collimating lens portion and the undulating lens portion are mutually connected to form as type of one piece.

Abstract: In a variable shaped lamp shade of an LED lamp, the lamp shade is made of a translucent material matched with an LED lamp strip and a lamp holder and includes at least one strip-shaped optical refraction unit having an external refractive surface, an internal refractive surface corresponding to the external refractive surface, and an assembling structure for matching the lamp holder. The external refractive surface or internal refractive surface is a curved surface without an inflection point and the curved surface has a constant or gradually changing curvature; and a non-curved surface is formed on the other side. The variable shaped lamp overcomes the problems of conventional LED lamp strips having a low illumination and a non-uniform illumination caused by a direct projection or an installation of a conventional lamp shade, and a low light utility caused by a too-large illumination range.

Abstract: The present invention relates to a surface light source, including a light source section made up of plural light emitting diodes and lenses that expand light from these light emitting diodes. The lens in the light source section has a light incident surface on which light from the light emitting diode is incident with an optical axis at a center, and a light exit surface that expands and emits the incident light. The light incident surface has a continued depressed surface, while the light exit surface has a continued projected surface.

Abstract: A focusing mechanism for LED spot lamp includes a lamp seat and a lens barrel being extendably assembled to the lamp seat. The lamp seat has an LED chip mounted thereon. The lens barrel includes a barrel body having a bottom portion and an opposing top portion, and a lens mounted to the top portion. The bottom portion of the lens barrel is assembled to the lamp seat via an extension coupling structure, such that the lens is located above the LED chip to cover the same. With the extension coupling structure, the lens barrel can be adjusted in position to project from the top of the lamp seat by different distances, so that the focal length between the lens and the LED chip can be regulated to accordingly regulate the focusing and diffusing effects of light emitted from the LED chip.

Abstract: An LED (light emitting diode) includes a light emitting chip and a lens above the chip. The lens includes a base and a convex curved circumferential surface extending upwardly from a periphery of the base toward a center of the lens. An acute angle formed between a light ray generated by the chip and projecting on a point of the convex curved circumferential surface and a main axis of the lens extending vertically from a center of the chip is smaller than that formed between the normal for the point of the convex curved circumferential surface and the main axis of the lens so that light generated by the chip is converged by the lens. A light-emission angle of the LED at 10% of a peak light intensity of the LED is ranged between 60-75 degrees from the main axis.

Abstract: Certain example embodiments of this invention relate to heatable glass substrates that may be used in connection with lighting applications, and/or methods of making the same. In certain example embodiments, a glass substrate supports an antireflective (AR) coating on a first major surface thereof, and a conductive coating on a second, opposite major surface thereof. Bus bars connect the conductive coating to a power source in certain example embodiments. The substrate may be heat treated (e.g., heat strengthened and/or thermally tempered), with one or both coatings thereon. The heatable glass substrate thus may help provide a chemical and/or environmental barrier for the luminaire or lighting system disposed behind it. In addition, or in the alternative, the heatable glass substrate may help reduce the amount of moisture (e.g., snow, rain, ice, fog, etc.) that otherwise could accumulate on the luminaire or lighting system.

Abstract: An LED module includes an LED having a central axis I, and a lens. The lens has an incident face for incidence of the light of the LED and an opposite emitting face for refracting the light of the LED out of the lens. The emitting face of the lens has a central axis II. The central axis II is offset from the central axis I and located at one side of a plane ZOX of an XYZ coordinate with an original O which is located at a center of the LED, in which the central axis I is coincident with the Z axis. The light beams emitted from the one side of the plane ZOX are stronger than the light beams emitted from the another side of the plane ZOX after the light beams emitted from the LED pass through the lens.

Abstract: A luminaire (100) comprising: a, a radiation source (16), a first optical element (10a) and a second optical element (10b) each with a non-planar surface (14a, 14b), wherein, in a base state, the second optical element (10b) engages in the first optical element (10a) with its non-planar surface (14a) in an exact fit, wherein the first and the second optical element (10a, 10b) are movable relative to each other, and wherein the first and the second optical element (10a, 10b) are identical in construction.

Abstract: The present invention relates to an undercabinet lighting system including a low profile switch mode power supply contained in a special electrical junction box and use Light Emitting Diodes with long life. The system is powered by a high energy efficient switch mode power supply with low power consumption. The height if this lighting system is very close to half of one inch or less. The transparent diffuser is positioned over the Light Emitting Diodes for uniform illumination over a desired area. These luminaries can be ganged or linked by direct mating connectors.

Abstract: An illumination device includes an active layer, such as a blue LED, covered with a first luminescent ceramic converter layer and partially covered with a second luminescent ceramic converter layer. The first and second conversion layers convert primary photons emitted by the active layer into photons of different, longer wavelengths. The color point of the illumination device can be adjusted by adjusting the relative size of the second conversion layer.

Abstract: Embodiments of this invention include composite articles having specific optical properties. In one embodiment of this invention, a composite comprises high and low refractive index light transmitting material and surface relief features. In further embodiments, the composite comprises volumetric dispersed phase domains that may be asymmetric in shape. In one embodiment of this invention, the composite is an optical film providing light collimating features along two orthogonal planes perpendicular to the surface of the film. In another embodiment, the composite has improved optical, thermal, mechanical, or environmental properties. In further embodiments of this invention, the composite is manufactured by optically coupling or extruding two or more light transmitting materials, and forming inverted light collimating surface relief features or light collimating surface relief features.

Abstract: An optical element comprises an organic resin and bubbles distributed to have a number density increasing from a first plane of the optical element toward a second plane of the optical element, where a diameter of the bubbles is less than or equal to a wavelength of light which enters the optical element. At least one of the first plane and the second plane may have an uneven structure.

Abstract: A laser light shaping optical system 1 in accordance with an embodiment of the present invention comprises an intensity conversion lens 11 for converging and shaping an intensity distribution of laser light incident thereon into a desirable intensity distribution; a phase correction lens 12 for correcting the laser light emitted from the intensity conversion lens 11 into a plane wave by homogenizing a phase thereof; and an expansion/reduction optical system 20, arranged between the intensity conversion lens 11 and the phase correction lens 12, for expanding or reducing the laser light emitted from the intensity conversion lens 11.

Abstract: The invention relates to an optical device for imparting an asymmetrical light beam. The optical device comprises a lens (10) having an exit diopter (12) having an exit surface consisting of a convex surface (16) defining a curved rear portion (18) having a first curvature and a curved front portion (19) having a second curvature different from the first curvature. Furthermore the lens (10) comprises an entry diopter (11) including at least one concave lodging (13) for lodging at least one light source, the surface of the concave lodging (13) facing at least partly the curved rear portion (18).

Abstract: Various embodiments of a thermal energy transfer apparatus that removes thermal energy from a light-emitting device are described. In one aspect, an apparatus comprises a silicon-based base plate and a silicon-based cover element disposed on the base plate. The base plate includes a recess to receive a light-emitting device therein. The base plate is coated with a first electrically-conductive pattern that forms a first electrode. The base plate is further coated with a second electrically-conductive pattern that is electrically isolated from the first electrically-conductive pattern. The cover element holds the light-emitting device between the base plate and the cover element with at least a portion of a light-emitting surface of the light-emitting device exposed. The cover element is coated with a third electrically-conductive pattern that is in contact with the second electrically-conductive pattern to form a second electrode when the cover element is disposed on the base plate.

Abstract: A lens for refracting light in three directions, including a lens surface having a repetitive pattern of recessed cavities formed by a repetitive pattern of three substantially planar facets.

Abstract: An optical emitting module includes a light-emitting device that emits light, and a lens member having a refracting surface configured to refract light emitted from the light-emitting device and to emit refracted light. The lens member is configured such that, when the angle of a light beam emitted from the lens member with respect to a principal light axis is ?1, a light beam with the maximum emission angle ?1 from the lens member is emitted from the refracting surface in the vicinity of a point where the refracting surface and the principal light axis cross each other. With this configuration, even when the light-emitting surface of a light source is large, it is possible to suppress the spread of emergent light from the lens member, obtaining a light intensity distribution with high uniformity.

Abstract: A housing includes a housing underpart, the housing underpart being provided with a housing cavity. The housing cavity comprises an opening on one housing side and, on the floor of the cavity, contains an electromagnetic radiation emitting semiconductor chip. A cover that is at least partially transparent to the electromagnetic radiation covers the housing cavity. A method for emitting electromagnetic radiation in a preferred direction is also disclosed.

Abstract: An LED unit includes an LED having a first optical axis and a transparent envelope receiving the LED therein. The envelope is a cylinder inclined towards a lateral side. The envelope includes two concave surfaces respectively defined at a top and a bottom thereof, and a convex surface formed on the top thereof. The two concave surfaces have the same second optical axis and the convex surface has a third optical axis. The second and third optical axes are parallel to each other and angled with the first optical axis. The second and third optical axes are inclined towards the same lateral side as that the envelope is inclined toward. The two concave surfaces and the convex surface are all aspheric.

Abstract: Improved lighting devices and methods are provided. In many embodiments, the devices and methods provide the capability to change a spot of light projected onto a target surface. In other embodiments, the devices and methods are fixed-focus. In one embodiment a lens can have a lens body with anterior and posterior surfaces. The anterior surface can be adapted to receive light from a light source. The posterior surface can have a central portion and a peripheral portion. Some of the light from the light source can pass through the lens body and exit the central portion of the posterior surface via refraction. Some of the light from the light source can pass through the lens body and exit the peripheral portion of the posterior surface via both refraction and reflection at various surfaces of the lens.

Abstract: A light source lens includes a refraction surface having a concave portion proximate to a central axis of a light source lens. The central axis passes through a light source that is coupled to the light source lens. An angular distribution function F(??) of a first light emitted from the light source and refracted at the refraction surface at least approximately satisfies F ? ( ? ? ) ? 1 cos 3 ? ( ? ? ) , where ?? is a latitude angle of the first light refracted at the refraction surface with respect to the central axis. The lens refracts a light emitted from the light source so that the resulting luminance at the upper area of the light source is more uniform.

Abstract: An LED (light emitting diode) illumination device that can generate a uniform light output illumination pattern. The illumination source includes an array of LEDs. Forward of the LEDs is an array of negative lens surfaces. At a distance from the LED the width W of the lens and the spacing D between the LEDs enhances creating the uniform light output illumination pattern. The negative lens surface can be non-symmetric and take a conic or conic-like shape.