Abstract: An LED lamp includes a thermally conductive base including an appendage protruding from a center of a first end and an opening to cavity on a second end. The appendage includes a channel coupled to the cavity. The LED lamp further includes an LED assembly disposed at an end of the protruding appendage and in thermal communication with the base. The LED assembly further includes a bulb disposed on the first end, wherein the appendage protrudes in a direction towards the center of the bulb, and wherein the LED assembly is proximate to the center of the bulb. The LED assembly further includes an electrical housing, configured to house an electrical module, disposed inside the cavity of the base. An electrical wire disposed inside the channel electrically couples the LED assembly to the electrical module.

Abstract: A lens member for projecting light from an LED in a square pattern includes a body formed of a light transmissive material. The body includes a base portion and a bulbous-shaped, light-directing lens portion extending upwardly from the base portion. A recess extending upwardly from a lower surface of the base portion and into the bulbous-shaped, light-directing lens portion continuously tapers from the base to a flat, circular surface below a top surface of the bulbous-shaped, light-directing lens portion. The lens portion has a horizontal cross-sectional shape that is substantially square at elevations between the base and the top surface of the lens portion.

Abstract: A light emitting module may include: a PCB board; a light emitting assembly mounted on the PCB board; a lens and an encapsulating housing, the encapsulating housing encapsulating therein the PCB board, the light emitting assembly and part of the lens, and an exit surface of the lens being exposed out of the encapsulating housing, wherein the encapsulating housing is formed therein with a first concave region surrounding the exit surface and reducing light blocking, and at least a second concave region into the first concave region, wherein the second concave region is designed in such a way that water in the first concave region is drained via the second concave region.

Abstract: In accordance with certain embodiments, semiconductor dies are embedded within polymeric binder to form, e.g., light-emitting dies and/or composite wafers containing multiple light-emitting dies embedded in a single volume of binder.

Abstract: An optical element is provided. When in a xz cross section, an angle which a ray travelling from the origin at ?r forms with the normal to the light receiving surface is designated as ?x, an angle which a ray travelling from b in the z axis direction forms, after the surface, with the z axis direction is designated as ?ib, in a yz cross section, an angle which a ray travelling from the origin at ?r forms with the normal to the light receiving surface is designated as ?y, angles which a ray travelling from a in the z axis direction forms, after the light receiving and exiting surfaces, with the z axis direction are designated as ?ia and ?ea, and an angle which a ray travelling from the origin at arc tan(a/ha) forms, after the light exiting surface, with the z axis direction is designated as ?eha, ?y>?x (0<?r<60°) ?eha>45° ?ea>45° ?ia>?ib are satisfied.

Abstract: Embodiments provide a light emitting device package including a body, a light emitting device the body, and a lens disposed on the light emitting device, wherein the lens includes a lower surface portion, an upper surface portion parallel to the lower surface portion, and a lateral surface portion positioned between the lower surface portion and the upper surface portion and provided with a plurality of lateral surfaces, wherein the plurality of lateral surfaces is formed in a shape of a parabola.

Abstract: An light mixing illumination device includes an array (1) of a plurality of solid state light sources, and an array (2) of a plurality of collimating lenses, each collimating lens being aligned with a solid state light source to collimate the light emitted from the solid state light source into a near parallel light; and a pair of first (5) and second (6) fly-eye lenses, wherein the collimated light from the collimating lens array (2) passes through the first and second fly-eye lens successively.

Abstract: A light module includes a first light source. The first light source includes a first light-emitting element and a first lens element. The first light-emitting element includes a first light-emitting chip for emitting a first light beam and a wavelength conversion material located on the first light-emitting chip for transferring parts of the first light beam to a second light beam. The first lens element faces the first light-emitting element and is located on a transmission path of the first light beam and a transmission path of the second light beam, and the first lens element includes an optical filter for filtering off the first light beam and being passed by the second light beam.

Abstract: An LED lightbulb retrofit is described that can be adjusted to (a) to accommodate both top-socket and bottom-socket applications, (b) generate a variety of IESNA illumination distributions, (c) generate different levels of total lumens, (d) mount to different sockets such as medium and mogul bases, (e) and work in both refractors and globe fixtures. LED printed circuit boards are mounted on multiple exterior surfaces of a single heat sink with internal fins that can be cut to different lengths to accommodate different numbers of PCBs with a parallel connector mounted (a) symmetrically for symmetrical lighting distributions or (b) asymmetrically for asymmetrical lighting distributions. LED light is controlled by an adjustable array of reflectors or lenses located over the LEDs.

Abstract: An LED beacon has a plurality of LEDs for emitting light of the same or different colors mounting along an upright member within an optical system. To provide a beacon illuminating selectively in one or more colors, the plurality of LEDs are in different groups of two or more LEDs, at least one LED in each group being of a different color. Each group of LEDs are mounted together circumferentially spaced from each other around a central axis. Each of the LEDs when activated projects light there from through the optical system provided by a collimating lens and a condensing, coupling lens. The optical system provides enhanced illumination distributed in a cylindrical beam emanating from the collimating lens. By selectively activating LEDs of the same colors or different color at different times different sequences or patterns may be generated.

Abstract: Device for providing comprising: A panel having rigid layer having a patterned electrical circuit thereon. An array of illuminating units, each unit being formed by at least one rigid element and a portion of the rigid layer; and including: a rigid optical dispersing element, a light source sandwiched within the panel for generating light from electrical energy, and an electrical conductor. The electrical conductor being the primary heat sink for the light source, the light source being primarily cooled via conduction. The electrical conductor and the optical dispersing element being dimensioned and arranged within the unit such that the electrical conductor does not materially impede transmission of light generated by the light source to the outside of the device. The electrical conductor transmitting electrical and thermal energy received from the light source away from the unit.

Abstract: The invention relates to an illumination system (10), a luminaire (102), a collimator (30), and a display device (200). The illumination system according to the invention comprises a light source (20) and the collimator. The light source is configured to emit a substantially Lambertian light distribution around an axis of symmetry (22). The refractive collimator is configured to redirect light from the light source so as to at least partially illuminate an illuminating surface (50), in which at least a part of the illuminating surface is substantially parallel to the axis of symmetry. The refractive collimator comprises a concave entrance window (34) and an at least partially convex exit window (40) for refracting light towards the illuminating surface. The illumination system according to the invention has the effect that a height of the illumination system may be reduced by virtue of the use of the refractive collimator.

Abstract: A light emitting device of the present invention includes: a laser diode group which generates a plurality of laser beams; a cylindrical light emitting element which emits incoherent light in response to the plurality of laser beams; and a light guide irradiation section which (i) guides the plurality of laser beams entered via a light incidence plane toward a light irradiation plane and (ii) irradiates the light irradiation area of the cylindrical light emitting element with the plurality of laser beams thus guided. The light irradiation plane of the light guide irradiation section has an area which is smaller than that of the light incidence plane.

Abstract: A circular LED illumination lens for short throw lighting, for example, as part of a set of such devices installed on mullions in reach-in refrigerator cabinets, to uniformly light access across the rectangular door and shelves. The len has an upper surface with a cavity for the LED, an upper surface the shape of a toroid, generated by an elliptical arc, that serves to magnify the light rays from the LED in an outboard direction, and the minor axis tilted about 17 degrees relatives the center axis of the LED which serves to direct the rays at the center of the shelves. The upper surface also preferably includes a spherical dimple to direct light away from the center axis.

Abstract: A modular LED light unit for mounting to an object to illuminate distally located objects comprises a circuit board supporting a plurality of LED lights and a light permeable front cover. The circuit board includes a plurality of apertures with the LED lights being reverse mounted to the circuit board such that each LED light is located by and extends into a separate one of the apertures. The front cover includes an outer surface and an inner surface and at least one optical structure located on the outer surface or inner surface. At least one of the LED lights is axially aligned with the optical structure whereby light emitted from the aligned LED lights is directed into the optical structure.

Abstract: A lighting module (10), for example of the LED type, for mounting on a rail comprises a circuit board (12) for carrying one or more light radiation sources (L), and a support structure (14) with a first side (14A) facing the rail and carrying the aforementioned circuit board (12) and a second side (14b) situated on the opposite side to the rail and carrying one or more lenses (16) for the light radiation sources (L). The support structure (14) carries one or more flexible electrical contacts (18) having a first end (18a) protruding from the first side (14a) of the support structure (14) for making contact with an electrical line (T) provided on the rail (R) and a second end (18b) which extends towards the circuit board (12) so as to provide electrical contact for the light radiation source or sources (L).

Abstract: The present invention aims at mitigating a light guide member being peeled off and a display panel being damaged by stress exerted on an adhesive section or the like between the light guide members.

Abstract: In a LED warning light, straight light units are fixed to straight peripheries of a warning light body, and curved light units are fixed to joints adjacent to two respective straight peripheries. Each straight light unit includes a light base, a reflective plate, a heat dispersion cover and a front cover. LED lights are arranged on the light base. The front cover is perpendicular to the light base opposite to the reflective plate. The reflective plate has light reflective elements connected to each other in a straight line. Light rays emitted from the LEDs are reflected by the reflective plate and then given off perpendicularly to the front cover. The vertical distance from an upper periphery of the arc top of the light reflective element to the corresponding inner surface of the heat dispersion cover is more than or equal to zero.

Abstract: In accordance with certain embodiments, semiconductor dies are embedded within polymeric binder to form, e.g., light-emitting dies and/or composite wafers containing multiple light-emitting dies embedded in a single volume of binder.

Abstract: The present disclosure involves a street light. The street light includes a base, a lamp post coupled to the base, and a lamp head coupled to the lamp post. The lamp head includes a housing and a plurality of LED light modules disposed within the housing. The LED light modules are separate and independent from each other. Each LED light module includes an array of LED that serve as light sources for the lamp. Each LED light module also includes a heat sink that is thermally coupled to the LED. The heat sink is operable to dissipate heat generated by the LED during operation. Each LED light module also includes a thermally conductive cover having a plurality of openings. Each LED is aligned with and disposed within a respective one of the openings.

Abstract: A light-emitting device includes a substrate, and a plurality of light-emitting elements mounted on the substrate. The light-emitting elements are placed to meet conditions that the number B of light-emitting elements per unit area (cm2) of a mounting part is not less than 0.4 and a mean mounting density D is not less than 58 to not greater than 334, when a relationship of formula “D=A×B” is established, assuming D as a mean mounting density of light-emitting elements on a substrate, A as a current (mA) flowing through one light-emitting element, and B as the number of light-emitting elements per unit area (cm2) of a substantial mounting part for light-emitting elements.

Abstract: Proposed is a luminaire (1), comprising light sources (10) and optical elements (20). The light sources (10) are arranged in a first (11) and a second array (12), while the optical elements (20) are arranged in a first (21) and a second section (22). The first ‘light sources' array (11) and the first Optical element’ section (21) form a first group (31), and the second array (12) and the section (22) form a second group (32). The luminaire (1) is characterized in that the optical elements (20) of each group are arranged to have different beam shaping characteristics, and the arrays (11,12) are arranged to be individually addressable. This is especially advantageous in illumination applications where the control of the beam shape is required or desired. Advantageously, the invention provides a luminaire (1) capable of adjusting the beam shape without using an adjustable optical system. Moreover, the control bandwidth of the light sources limits the speed with which the beam shape can be adjusted.

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: In accordance with certain embodiments, semiconductor dies are embedded within polymeric binder to form, e.g., freestanding white light-emitting dies and/or composite wafers containing multiple light-emitting dies embedded in a single volume of binder.

Abstract: A zoom unit (1) of a light engine (5), comprising at least one lens (2), at least one first reflector (3) and at least one second reflector (4), other at least one lens (2) receives a collimated beam (LI) from a light source unit (6) of the light engine (5), the collimated beam (LI) being incident on the first reflector (3) after being converged by the lens (2), and being incident on the second reflector (4) after being reflected by the first reflector (3), to produce an output beam (L4) with its beam angle changed.

Abstract: A light emitting module is configured to provide substantially uniform lighting using a plurality of lighting sources. The light emitting module includes a diffusion plate disposed at a set distance from the light emitting module. A light source substrate has a substantially quadrilateral outer perimeter with at least one gap formed therein, and a plurality of light sources are disposed on the light source substrate according to a repeated quadrilateral pattern. A distance between adjacent light sources in the repeated quadrilateral pattern is selected based on the set distance h from the diffusion plate to the light emitting module, and on a greater of two diagonal distances x, y of the quadrilateral pattern. The diffusion plate diffuses light emitted by the light sources to provide substantially uniform light. Various other aspects of the light emitting module are additionally described.

Abstract: In accordance with certain embodiments, semiconductor dies are embedded within polymeric binder to form, e.g., light-emitting dies and/or composite wafers containing multiple light-emitting dies embedded in a single volume of binder.

Abstract: The present invention relates to a light emitting diode (LED). The LED comprises an LED die, one or more metal pads, and a fluorescent layer. The characteristics of the present invention include that the metals pads are left exposed for the convenience of subsequent wiring and packaging processes. In addition, the LED provided by the present invention is a single light-mixing chip, which can be packaged directly without the need of coating fluorescent powders on the packaging glue. Because the fluorescent layer and the packaging glue are not processed simultaneously and are of different materials, the stress problem in the packaged LED can be reduced effectively.

Abstract: According to one embodiment, there is provided a light-emitting device including a light-emitting section, a thermal radiation member, and a heat conduction layer. The light-emitting section includes a mounting substrate section and a light-emitting element section. The mounting substrate section includes a substrate, a first metal layer, and a second metal layer. The substrate includes a first principal plane including a mounting region and a second principal plane. The first metal layer includes mounting patterns provided in the mounting region. The light-emitting element section includes semiconductor light-emitting elements and a wavelength conversion layer. The semiconductor light-emitting elements are connected to the mounting patterns. The luminous exitance of the light-emitting element section is equal to or higher than 101 m/mm2 and equal to or lower than 1001 m/mm2. The thermal radiation member has an area equal to or larger than five times the area of the mounting region.

Abstract: A light source module is disclosed and includes a carrier, a light-emitting unit, and a lens. The light-emitting unit is disposed on the carrier and has a light-emitting surface. The lens is disposed above the light-emitting unit and has bottom surface and a tapered top surface opposite to the bottom surface. The bottom surface is opposite right to the light-emitting surface. A gap exists between the bottom surface and the light-emitting surface. Therefore, beams emitted by the light-emitting unit are modulated by the lens to be mostly concentrated relatively in a specific radiation angle range and distributed more uniform within the specific radiation angle range, which is conducive to reduction of the glare degree of the light source module.

Abstract: An arrangement for emitting light having at least one LED-light source and at least one first lens arranged in front of the LED light source in the light-emitting direction, wherein a second lens is arranged in front of the first lens in the light emitting direction for influencing the light emitted from the first lens.

Abstract: Disclosed is a lighting fixture that provides approximately even illumination across a planar surface. Also enclosed is an LED light for producing the same. In one embodiment, the light fixture includes a plurality of hollow gradient diffusion globes; each diffusion globe is affixed to a planar reflector that forms an outer illumination surface of the light fixture. Each diffusion globe surrounds a light-emitting portion of an LED or LED cluster. The hollow gradient diffusion globe can include a wall defining by the interior and exterior boundary of the diffusion globe. The wall includes diffusing-particulate homogenously distributed within the wall that in combination with varying thickness of the wall creates continuously varying diffusion. The relative spacing of the diffusion globes on the planar reflective surface in combination with the continuous variable diffusion property of each globe produce approximately even illumination across the outer illumination surface of the LED light fixture.

Abstract: A LED strip light connector system for providing a reliable connection between a flexible LED light strip and a connector. The LED strip light connector system generally includes a connector adapted to receive an end of a light strip, and a support member extending outwardly from the connector to support the light strip near the connector. The light strip is attached to the surface of the support member thereby preventing movement of the light strip with respect to the connector.

Abstract: An electronic incense-stick assembly includes a burning chamber, a number of electronic sticks simulating burning sticks, a wind speed sensor and a controller. The electronic sticks are arranged in the burning chamber. Each of the electronic sticks includes a light guide bar, a glowing end, and a light source. The light guide bar includes a first end and a second end away from the first end. The light source is positioned at the first end. The glowing head is positioned at the second end and simulates the glowing tip of an incense stick. The wind speed sensor is located on the exterior of the burning chamber, and senses changes in the wind speed outside the burning chamber. The controller adjusts the brightness of the light source according to the wind speed sensed by the wind speed sensor.

Abstract: Unevenness in brightness of a plane light source is controlled to improve a display quality of a plane light source. An LED module comprising one or a plurality of light source sections with a high brightness peak value and a large light and dark contrast difference, and an LED module comprising one or a plurality of light source sections with a low brightness peak value and a small light and dark contrast difference, are alternately arranged. The one or the plurality of light source sections comprise a white resist arranged on a substrate region around LED, as a reflection material. The light source section with a large brightness peak value and a large light and dark contrast difference, and the light source with a low brightness peak value and a small light and dark contrast difference, are formed by the difference in a reflection rate of the white resist.

Abstract: The present disclosure relates to a laser diode array which may be made up of at least two unit cells. Each unit cell may have a stack of laser diodes and a focusing lens. The focusing lens of each unit cell may be used to focus an output beam from its associated unit cell. The unit cells may be arranged so that the focused output beams from the unit cells converge on a common focal region.

Abstract: The present invention provides a light source apparatus (10) for use with a projector (80) and a method for combining laser beams of different polarization characterized in that an overall efficiency for the reflection and transmission exceeding 97% is achieved. A first white laser light beam (18) having a first polarization is combined with a second white laser light beam (28) having a second polarization that is orthogonal to the first polarization by utilizing a multi narrow-band polarizing beam splitter (20) positioned to receive the first and the second white laser light beams (18, 28). Embodiments of the present invention utilize two laser light sources (12, 22) emitting two sets of laser light beams with multiple wavelengths (14, 15, 16 and 24, 25, 26).

Abstract: The invention refers to a light, especially a spotlight (6, 16) as lighting source in the application area of budding monitoring, with at least one closed housing (7, 7a, 7b), in which there are at least one light emitting diode (2) arranged on a circuit board (1), a converging lens (3) assigned to one of each aforesaid light emitting diodes (2) and at least one dispersing lens (4, 4, 4?) that can be assigned to one of each aforementioned light emitting diodes (2), in which case every one of the converging lenses (3) collects the emitted light of the light emitting diode (2) assigned to it and directs it to one dispersing lens assigned to one of these light emitting diodes (2) in case of need, in which case this dispersing lens (4, 4?, 4?) emits the light it absorbed into a distant field (F), and in which case the ad hoc assignment of the dispersing lens (4, 4?, 4?) is made possible with closed housing (7, 7a, 7b).

Abstract: In accordance with certain embodiments, semiconductor dies are embedded within polymeric binder to form, e.g., freestanding white light-emitting dies and/or composite wafers containing multiple light-emitting dies embedded in a single volume of binder.

Abstract: In accordance with certain embodiments, interior spaces are illuminated with a combination of harvested sunlight and artificial light emitted by one or more light-emitting elements.

Abstract: A portable lighting apparatus includes a plurality of connected lighting components and a handle attached to at least one of the plurality of lighting components. Each lighting component includes at least one bulb. The lighting components are arrangeable relative to one another into a plurality of configurations, including at least a collapsed configuration and an upright configuration.

Abstract: LED light bulbs especially suited for use in table lamps or floor lamps with lamp shades. The LED light bulbs include optics which provide more limited but more uniform illumination of the lamp shade and provide more uniform illumination through the top and bottom apertures of the lamp shade. The light bulbs comprise an electrical coupling base (e.g., Edison screw base) coupled via an insulating coupling piece to a tube. Metal Core Printed Circuit Boards on which LEDs with lenses are mounted are mechanically coupled to the tube.

Abstract: An optoelectronic component has optically active region, with the optically active region comprising at least one semiconductor chip which is provided for generating electromagnetic radiation, and comprising a beam-forming element through which at least a portion of the electromagnetic radiation which is emitted from the semiconductor chip in operation passes and which has an optical axis, and with the optically active region having quadrant symmetry with respect to a coordinate system which is perpendicular to the optical axis. An illumination device has an optoelectronic component such as this.

Abstract: A light emitting apparatus, including at least one lens, at least one light emitting element, and a light emitting section, is provided. The lens includes a first curving surface and a second curving surface opposite to the first curving surface. The light emitting element is adapted for emitting a light beam and is disposed on a side of the second curving surface. The light emitting section has a central area and is disposed on a side of the first curving surface, wherein the light beam emitted from the light emitting element is transmitted out of the light emitting apparatus through the second curving surface, the first curving surface, and the light emitting section in sequence. An optical axis of the second curving surface is close to the central area with respect to an optical axis of the first curving surface. A lens is provided as well.

Abstract: An illumination lens includes a light receiving surface 101; and a light exit surface 103. When the axis of 101 is designated as Z-axis, a position of the bottom of the lens is designated as z=0 and X-axis and Y-axis are defined in a plane which contains z=0 and is perpendicular to Z-axis, 101 is symmetric about YZ-plane and XZ-plane and a cross-sectional area of a cross section of 101 parallel to XY-plane monotonously decreases with increase in z-coordinate. When the maximum value of z-coordinate on 101 is designated as d and a radius of the cross section of 103 at z=0 is designated as r, a point (x, y) on a cross section of 101 at z=0.3 d is represented by ( x a ) 2 + ( y b ) 2 = f ? ( ? ) ? ? 0 ? ? ? ? 2 ( 1 ) where a and b represent constants and ? = tan - 1 ? ( y x ) ? ? f ? ( 0 ) = f ? ( ? 2 ) = 1.0 , ? and ? ? f ? ( ? ) ? 1.

Abstract: A lighting device has a holder, multiple LED modules and multiple light-homogenized elements. The holder has an axis and multiple working surfaces. The axis is defined axially through the pillar and the base. The working surfaces are formed in an outer side surface of the holder and are arranged around the axis. The LED modules are respectively mounted on the working surfaces of the holder. The light-homogenized elements are respectively mounted on the working surfaces of the holder. Therefore, the LED modules are respectively positioned on the working surfaces to increase the illumination of the side area of the lighting device, and the light-homogenized effect of the light emitted from the lighting device is improved by the light-homogenized elements.

Abstract: An LED beacon has a plurality of LED's mounted on opposite sides of a square post in the same horizontal plane. Each LED projects the light there from through an optical system. The optical system is provided by a collimating lens, preferably a cylindrical fresnel lens and a condensing, coupling lens for each LED also mounted on the post. The optical system provides enhanced illumination distributed in a cylindrical beam emanating from the fresnel collimating lens. The illumination is enhanced in that the condensing lens shifts the focus of the collimating lens to the location of the LEDs. Nominally, the fresnel collimating lens is focused at the center of the array of LEDs (the middle of the post).

Abstract: An illumination device comprising a housing positionable at a distance from an area to be illuminated and having at least one lighting module, on a support in the housing, that has lighting units having the same light distribution characteristics. Each of the lighting units contains lighting elements and associated lenses arranged in front of the same in the light-emitting direction. Different lighting modules may include lighting units having different light distribution characteristics, while the lighting units have optical axes running parallel to each other. At least one lighting unit is configured such that its light distribution characteristics have at least one asymmetrical section relative to a central plane of the lighting unit.

Abstract: Disclosed are a backlight unit and a display device. The backlight unit includes alight emitting module including a plurality of light emitting devices; a controller for controlling an operation of the light emitting module; a light guide plate disposed at one side of the light emitting module; and an optical member disposed on or under the light guide plate. The light emitting module includes a first light emitting device and a second light emitting device. Light linearity of the first light emitting device is superior to light linearity of the second light emitting device, and a light orientation angle of the first light emitting device is smaller than a light orientation angle of the second light emitting device. The controller selectively drives the first and second light emitting devices.

Abstract: Wherein the light source comprising: a monolithic emissive semiconductor device; and an array of lenslets, the lenslets being optically and mechanically coupled to the monolithic emissive semiconductor device; wherein the monolithic emissive semiconductor device comprises an array of localized light emission regions, each region corresponding to a given lenslet; wherein the lenslets have an apparent center of curvature (Ca), an apparent focal point (fa), a radius of curvature (R) and a lenslet base diameter (D), the base diameter being the width of the lenslet at the intersection with the monolithic emissive semiconductor device; wherein the distance along the lenslet optic axis between the Ca and the fa are normalized, such that Ca is located at distance 0 and fa is located at point 1; wherein each localized light emission region is located at a point that is greater than 0, and less than Formula (I); and wherein each light emission region has a diameter, the emission region diameter measuring one-third or l