Abstract: The invention relates to a phosphor wheel comprising a carrier (16) and a plurality of pre-manufactured, individual, jointed segments (20) that are mounted on the carrier (16). At least a few of the segments (20) comprise a luminescent substance.

Abstract: Gradient optics for controllable light distribution for LED light sources. In an aspect, an apparatus is provided that includes a panel coupled to receive light emitted from a light source and gradient optics disposed on the panel. The gradient optics providing a transparency gradient that filters the light to achieve a selected emitted light intensity variation across a selected surface of the panel.

Abstract: An optical lens for lighting fixture includes a body, which comprises a bottom surface and a light-exit surface at opposing bottom and top sides thereof, an elongated groove formed in the bottom surface, a light incident surface, a first intersection line and a second intersection line respectively connected between the two ends of the elongated groove and the bottom surface, a first line segment and a second line segment respectively connected between the light incident surface and the bottom surface, a first virtual line defined between the two ends of the first line segment, a first distance that is the shortest distance between the two ends of the first intersection line, and a SAGi that is the shortest distance between any point at the first line segment and the first virtual line and satisfies the equation: 0?|SAGi/first distance|×100?2.8.

Abstract: Described is an ornamental strand of glow-in-the-dark bulbs comprising a plurality of bulbs having a means for glowing in the dark and that are arranged along a strand. The strand of glow-in-the-dark lights resembles a traditional strand of lights, but does not require a power source or any electrical components. The bulbs glow in the dark by means of a phosphorescent material. The bulbs may be composed of a phosphorescent material, coated with a phosphorescent material, or filled with a phosphorescent material. Overall, the present invention provides an ornamental strand of lights for use in decorating a home, tree, or business that does not require the use of electricity.

Abstract: Provided is a bandpass filter for a light emitting device that can improve the light emission efficiency in use for a light emitting device, and a light emitting device that can obtain the high light emission efficiency by using the bandpass filter. The light emitting device includes a substrate; a light emitting element disposed over the substrate; a phosphor-containing layer containing at least one kind of phosphor; and a bandpass filter disposed over a surface of the phosphor-containing layer on the light emitting element side, the bandpass filter including a multilayer film having a plurality of first and second dielectric layers, the second dielectric layer being disposed over the first dielectric layer.

Abstract: An optical coupling device is used for optically coupling light sources with a light guide plate. The optical coupling device includes transparent light guide portions. Each light guide portion has a light incident surface, a light emitting surface, a top surface, and a bottom surface. The light incident surface is opposite to the light emitting surface. The top surface is opposite to the bottom surface. Along a direction perpendicular to the top surface, a thickness of the light incident surface is greater than a thickness of the light emitting surface. The light incident surface is optically coupled with a corresponding one of the light sources. The light emitting surface is optically coupled with the light guide plate.

Abstract: The present invention generally relates to methods and systems for narrowing a wavelength emission of light. In certain aspects, methods of the invention involve transmitting light through a filter and passing a portion of the filtered light through a gain chip assembly at least two times before that portion of light passes again through the filter.

Abstract: Disclosed are an optical member, a display device having the same, and a method of fabricating the same. The optical member includes a receiving part having an empty space therein, a host in the receiving part, a plurality of wavelength conversion particles in the host, a sealing part in the receiving part, and a pre-treatment layer between the sealing part and an inner surface of the receiving part.

Abstract: Disclosed are an optical member and a display device. The display device includes a light guide plate; a light source on a lateral side of the light guide plate; and a wavelength conversion member between the light source and the light guide plate. The wavelength conversion member includes a receiving part between the light source and the light guide plate; a host in the receiving part; and a plurality of wavelength conversion particles in the host. The receiving part includes a convex part between the light source and the host; and a concave part between the light guide plate and the host.

Abstract: Disclosed are an optical member and a liquid crystal display. The optical member includes a host; a plurality of wavelength conversion particles in the host; and a plurality of electron receiving particles adjacent to the wavelength conversion particles, respectively.

Abstract: Various embodiments of the disclosure relate to an optical system that includes a base unit and one or more cartridges that are removably attachable to the base unit. The one or more cartridges can include optical components configured to output a beam of light (e.g., a laser). The base unit can be configured to combine multiple beams of light (e.g., emitted by multiple cartridges) and output a combined beam of light. The cartridges can be interchanged to modify the light output by the optical system. The optical system can include thermally one or more stable enclosures and/or a temperature controller. The optical system can include one or more alignment adjustment optical components configured to adjust the alignment of one or more light beams.

Abstract: An apparatus for an illumination system including a concentric light source providing a quantity of light; a diffusion shield to diffuse the light and produce a diffused illumination where the diffused illumination is provided to a component positioned in an interior portion of the diffusion shield; a support structure where the diffusion shield is mechanically coupled with the support structure at a first base portion of the diffusion shield and where the concentric light sources are mechanically coupled with the support structure and positioned radially outward from the first base portion of the diffusion shield; and a harvesting shield where the harvesting shield is mechanically coupled with the support structure and positioned radially outward from the concentric light sources and where the harvesting shield redirects at least a portion of the quantity of light from the concentric light sources towards the diffusion shield.

Abstract: An illuminating device is configured to include a light guide structure having a first light source configured to emit light of a first wavelength to excite at least one red fluorescent transparent substance; a second light source configured to emit light of a second wavelength to excite at least one green fluorescent transparent substance; and a third light source configured to emit light of a third wavelength to excite at least one blue fluorescent transparent substance.

Abstract: Disclosed are an optical member, a display device including the same, and a method of fabricating the same. The optical member includes a barrier film; an adhesive layer bonded onto the barrier film and including a plurality of wavelength conversion particles and an adhesive; and a detachable film detachably attached onto the adhesive layer.

Abstract: In a light wavelength conversion member, a translucent member encapsulates a yellow phosphor and a blue phosphor. The yellow phosphor is excited by light ranging from near-ultraviolet light to short-wavelength visible light whose dominant wavelength is 350 nm to 480 nm and then emits yellow light. The blue phosphor is excited by light ranging from near-ultraviolet light to short-wavelength visible light whose dominant wavelength is 350 nm to 480 nm and then emits blue light. The difference in refractive index between each of the yellow phosphor and the blue phosphor and the translucent member is less than or equal to 0.2.

Abstract: A luminescent device is disclosed comprising a luminescent substance for the conversion of pump light, wherein a scattering body which scatters the pump light is provided. The pump light input into the scattering body may first be scattered at inert scatterers provided in the scattering body and subsequently converted. Light scattered at luminescent particles may also be simultaneously converted.

Abstract: This backlight device 12 of the present invention includes: a cold cathode fluorescent tube; a chassis 14 that houses at least the cold cathode fluorescent tube on a front surface 14a1 side of a bottom plate 14a of the chassis; and a circuit substrate 32 having a front surface 32a on which electronic components 38a and 38b are disposed, the front surface 32a facing a rear surface 14a2 of the bottom plate 14a of the chassis 14. The heat generated from the electronic components 38a and 38b circulates towards the chassis 14 with ease, and therefore the heat generated from the electronic components 38a and 38b on the circuit substrate 32 can be effectively dissipated by the bottom plate 14a of the chassis 14.

Abstract: Disclosed are an optical member, a display device having the same, and a method of fabricating the same. The optical member includes a receiving part having an empty space therein, a host in the receiving part, a plurality of wavelength conversion particles in the host, a sealing part in the receiving part, and a pre-treatment layer between the sealing part and an inner surface of the receiving part.

Abstract: The present invention can further increase the efficiency of light extraction from the light exit surface of a light-emitting device. A cell (10) for a light-emitting device includes: a first main wall (10a) and a second main wall (10b) which are disposed facing each other with a distance therebetween; and a sidewall (10c). The sidewall (10c) connects the first main wall (10a) and the second main wall (10b). The sidewall (10c) defines, together with the first and second main walls (10a, 10b), an internal space (10A) into which a luminescent substance is to be encapsulated. A portion of the sidewall (10c) located laterally of the internal space (10A) is white.

Abstract: An improvement in DMD illumination systems is set forth, wherein the spatially integrated object plane is selected from within the volume of the integrating rod, rather than at its exit face. In one embodiment, the exit face of the rod may be curved to aid imaging. Benefits of the integrator rod according to the present invention include reduced sensitivity to dust, edge chips and surface defects, simpler or more rugged mounting.

Abstract: Methods and apparatus provide for a display device comprising a plurality of display panels arranged adjacent to one another along the respective peripheral edges thereof, and wherein respective first and second viewing planes form an obtuse angle T relative to each other. The display device further includes a cover sheet located in proximity to, and covering the first and second viewing planes, and includes a light compensation portion located proximate to the peripheral edges of the first and second flat panel displays, and has a curvature complementary to the obtuse angle between the respective first and second viewing planes. The light compensation portion bends light produced by respective peripheral areas of the first and second flat panel displays proximate to the respective peripheral edges thereof to reduce visual discontinuities introduced by the peripheral edges into an image displayed on the first and second flat panel displays.

Abstract: Disclosed are an optical sheet, a display device including the same, and a method for manufacturing the same. The optical sheet includes a host layer, a plurality of wavelength conversion particles in the host layer, and a plurality of optical path change particles in the host layer.

Abstract: Phosphor color foil 1 comprises glass substrate 2, rotary motor 3 for rotating glass substrate 2, and phosphor (first phosphor) 5 annularly applied on the surface of glass substrate 2. The center of the applied region of phosphor 5 is different from the rotational center of glass substrate 2. The center of one or both of outer boundary line 5a and inner boundary line 5b of the applied region of phosphor 5 is different from the rotational center of glass substrate 2. Center axis 6 of glass substrate 2 is separated from the rotational center. Another phosphor (second phosphor) 9 is annularly applied adjacently to and inside or outside the applied region of phosphor 5.

Abstract: A lens for a light emitting diode is formed with a material having a refractive index of n, and the lens includes a base, a first curved circumferential surface extending from the base, a curved center-edge surface extending from the first curved circumferential surface, and a curved centermost surface extending from the curved center-edge surface. The base includes a groove for receiving a light emitting chip therein. In the lens, a distance from a center of the base to a point of the curved center-edge surface is always shorter than the radius of curvature for the point of the curved center-edge surface. The curved centermost surface has a concave shape with respect to the base.

Abstract: Gradient optics for even light distribution of LED light sources. In an aspect, an apparatus is provided for uniform distribution of light emitted from a light source. The apparatus includes a panel coupled to receive the light emitted from the light source, and gradient optics disposed on the panel, the gradient optics providing a matching transparency gradient that is aligned with the light source to evenly distribute the emitted light. In another aspect, an apparatus includes means for receiving the light emitted from the light source, and means for providing a matching transparency gradient that is aligned with the light source to evenly distribute the emitted light.

Abstract: Discussed are a light guide plate and an apparatus and method for manufacturing the same. The light guide plate manufacturing apparatus includes a stage supporting a substrate for manufacturing the light guide plate, a screen disposed on the substrate supported by the stage, an applying part applying an etching ink onto the screen, and a squeegee pressurizing the screen with the etching ink applied thereon to form a pattern corresponding to a screen pattern in the substrate. The screen pattern corresponding to the pattern to be formed in the substrate is formed in the screen. The etching ink is used for etching the substrate to form the pattern in the substrate. The light guide plate can prevent loss of light due to the pattern, and enhance efficiency of light (emitted from a light source) supplied to a display panel.

Abstract: Disclosed is an optical sheet for use in liquid crystal displays, which is not easily damaged by external impact, thus facilitating handling thereof and decreasing defective rates, resulting in reduced production costs and increased production efficiency. Decreases in the luminance of the optical sheet due to damage can be prevented.

Abstract: A condensing element includes an outer section having a circumferential curved sidewall extending between a light input surface at one end and a light output surface at the other end that provides substantially total internal reflection of light emitted from the input surface and incident upon the sidewall of the outer section. A circumferential curved inner section is recessed within the outer section such that the light emitted from the input surface and incident upon the curved inner section is not incident upon the output surface. A circumferential substantially non-curved sidewall extends from the inner section to a circumferential substantially non-curved upper section positioned at approximately a 45° angle relative to the optical axis of the light emitted from the input surface. A light-absorbing plug is in communication with the upper section, wherein the light emitted from the input surface is condensed and directed in a sideways direction relative to the optical axis of the entering light.

Abstract: Optical films are described comprising a color shifting film comprising a matte surface layer; and light control microstructured layer disposed proximate the color shifting film. The optical film may comprise a matte layer disposed on a major surface of the color shifting film and the light control micro structured layer disposed on the color shifting film at an interface that is free of adhesive. Alternatively, the optical film may comprise a film stack comprising a light control film having a light control microstructured layer, a color shifting film, and an adhesive layer between the light control film and color shifting film. In some embodiments, the matte layer comprises matte particles. In other embodiments, the matte layer comprises a plurality of microstructures and no greater than 50% of the microstructures comprise embedded matte particles. In some embodiments, the microstructures are substantially free of embedded matte particles.

Abstract: Disclosed are a light conversion member, a display device including the same, and a method for fabricating the same. The light conversion member includes a host, a plurality of light conversion particles in the host, and a ferroelectric material in the host.

Abstract: A lighting fixture includes: a base; a plurality of optical sources attached on an upper surface of the base to emit light; a heat spreader attached to the base to radiate heat emitted from the plurality of optical sources; and a light diffusion lens disposed on the upper surface of the plurality of optical sources to refract light emitted from the plurality of optical sources and to increase an irradiation angle of light. In the lighting fixture, an irradiation angle of light emitted from an optical source is close to that of a general electric-light bulb and thus a light distribution characteristic of the lighting fixture may be improved.

Abstract: A processing machine is configured to include a processing device capable of applying processing for forming many holes to a processing area as a part of a region to be processed in a workpiece, a transferring device to relatively move the workpiece with respect to the processing device after the processing is applied to a certain area in the region to be processed, and to position an unprocessed area as a new area to be processed by the processing device, a processing pattern storage unit to store information defining arrangement positions of the holes formed by the processing device, and a control unit to determine a target processing position of each of the holes by adding a position correction amount of each hole on a random basis to the position of each hole defined by the information stored in the processing pattern storage unit.

Abstract: A light source unit includes a primary light source configured to emit primary light, and a connection portion provided on an optical path of the primary light and to and from which an optical conversion unit is attachable and removable, the optical conversion unit including an optical conversion element configured to convert optical properties of the primary light to generate secondary light.

Abstract: The present invention is an articulating hand power tool which in one embodiment includes a main housing extending along a longitudinal axis, a head portion including a head housing configured to articulate with a main housing along a plane in which the longitudinal axis lies, a motor positioned within the main housing, and a lighting assembly including (i) an elongated housing portion operably connected to the head portion, and (ii) an elongated lens enclosing the elongated housing.

Abstract: Methods and apparatus for a free space coupler to receive light from a laser via air. In one embodiment, a system comprises a laser source, a mirror optically aligned to the laser source, a first mount to control a position of the mirror, a free-space coupler to receive light from the mirror, a beam splitter to receive light exiting the coupler, a first detector to receive light reflected from the beam splitter, a second mount coupled to the first detector and to the coupler to control a position of the coupler from information from the first detector, and a second detector to receive light reflected by the coupler and the mirror, wherein the second detector is coupled to the first mount for positioning the mirror with respect to the coupler.

Abstract: A ceramic conversion element includes an active ceramic layer that converts electromagnetic radiation in a first wavelength range into electromagnetic radiation in a second wavelength range, which is different from the first wavelength range, and a carrier layer transmissive to radiation in the first wavelength range and/or radiation in the second wavelength range, wherein an inhibitor layer is arranged between the active layer and the carrier layer, the inhibitor layer reducing diffusion of activator ions from the active layer into the carrier layer.

Abstract: An optical component adapted for using in a backlight module providing light sources to a display apparatus is provided in the present disclosure. The optical component includes a first optical layer comprising a plurality of first blind holes extending downward from an upper surface to a first predetermined depth of the optical component, and a second optical layer comprising a plurality of second blind holes extending upward from a lower surface to a second predetermined depth of the optical component. A backlight module and a display apparatus are also provided.

Abstract: The present invention discloses an LED lamp which has a light guide with a total internal reflection (TIR) surface. A light modification layer comprising either a pure component or a mixture of the component selected from a group consisted of a yellow phosphor, a red phosphor, a green phosphor, a blue phosphor, and a reflective material is optionally adopted. The light beam is modified by the light modification layer before going out of the lamp. A blue light is one of the candidates which can be adopted as the light source.

Abstract: A lens diffusing light emitted from a light source includes a concave light-incident surface, a light guide portion, and a light-emitting surface. The light-incident surface includes a plane portion opposed to the light source and an optical function portion that is formed on the plane portion and one of scatters and diffuses the light. The light emitted from the light source enters the light-incident surface. The light that has entered the light-incident surface passes through the light guide portion. The light-emitting surface emits the light passed through the light guide portion.

Abstract: The present invention relates to an optical light mixer providing a homogenized and uniform light beam where the optical light mixer is formed of a solid transparent material and light enters the optical light mixer through an entrance surface and is reflected through said body to an exit surface where said light exits said optical light mixer. The optical light mixer comprises a first part formed as a pyramid frustum where the top surface of the pyramid frustum forms the entrance surface and a second part formed as a cone frustum and where the bottom surface the cone frustum forms the exit surface. The present invention relates also to an illumination device comprising a number of light sources and such optical light mixer.

Abstract: A lens for a light emitting diode is formed with a material having a refractive index of n, and the lens includes a base, a first curved circumferential surface extending from the base, a curved center-edge surface extending from the first curved circumferential surface, and a curved centermost surface extending from the curved center-edge surface. The base includes a groove for receiving a light emitting chip therein. In the lens, a distance from a center of the base to a point of the curved center-edge surface is always shorter than the radius of curvature for the point of the curved center-edge surface. The curved centermost surface has a concave shape with respect to the base.

Abstract: The present invention relates to a street lamp which uses LEDs as a light source and has a freely adjustable lighting direction and an adjustable lighting range. The street lamp of the present invention includes a housing 1; LEDs 10 arranged in the housing 1; heat radiation fins 20 formed on an upper surface of the housing 1; a lighting direction adjuster 30 arranged on the bottom surfaces of the heat radiation fins 30 in the housing 1; and a lens case 40 attached to an upper surface of the lighting direction adjuster 30 and equipped with a lens moving means for positioning a lens 49 arranged in the lens case wherein the lighting direction adjuster 30 includes a spherical rotating body 32; a receiving body 34 having a groove 35 for accommodating the spherical rotating body 34; and a cover plate 36 arranged on the rotating body 32.

Abstract: The present invention provides a pattern substrate structure for light emitting angle convergence and a light emitting diode device using the same. The pattern substrate structure has a plurality of enclosed geometric regions defined by at least three stripe-shaped parts on a substrate to provide the light reflection effect through the uneven surface of the substrate and thereby converge the light emitting angle of the light emitting diode element into 100˜110 degrees. Therefore, the illuminant efficiency of the light emitting diode device using the pattern substrate structure is substantially raised because of the improved directivity.

Abstract: Exposed fixture mechanism (or exposed fixture mechanism) and associated mounting features constituting a broad range of structural, aesthetic, and/or functional enhancements to existing recessed fixtures. Embodiments are generally configured to couple at a structural surface at and/or surrounding a recessed fixture. A mounting ring provides secure attachment at the structural surface, A ring cover with or without an exposed fixture mechanism (EFM) typically is coupled to the mounting ring surrounding the recessed fixture via a variety of mechanisms including but not limited to a twist-lock engagement, magnets, screws, or snap on mechanisms. EFMs include a wide variety of aesthetic, functional, and/or structural embodiments.

Abstract: The invention relates to a method for producing a headlamp lens (2) for a vehicle headlamp, in particular for a motor-vehicle headlamp (1), wherein the headlamp lens (2) comprises a transparent body (3) with an optically effective surface (5), which is in particular substantially planar and can be turned towards a light source (10), and an optically effective surface (4), which is in particular convex and can be turned away from the light source (10), wherein the gradient of a light-dark boundary (25) projected by the headlamp lens (2) or a further headlamp lens is measured, and wherein a light diffusing structure (35) is produced in the transparent body (3) in accordance with the measured gradient.

Abstract: A method for providing an optical element may include providing an optical feature in the optical element that spreads or distributes light passing through the optical element. The method may also include providing a texturing in at least a portion of the optical feature of the optical element.

Abstract: An LED comprises a substrate, a first semiconductor layer, an active layer, a second semiconductor layer, a first electrode and a second electrode. The first semiconductor layer, the active layer, and the second semiconductor layer are stacked in that order and located on a surface of the substrate. A number of first three-dimensional nano-structures are located on a surface of the second semiconductor layer away from the active layer. The first three-dimensional nano-structures are linear protruding structures, a cross-section of each linear protruding structure is an arc. The present disclosure also relates to an optical element.

Abstract: A direct-viewing type display device (100A) of the present invention includes: a display panel which has a display region (10A) that can be altered into a transparent state and a frame region (10F) provided outside the display region; and a light-transmitting cover (20) provided on a front side of the display panel. The light-transmitting cover includes a lens portion (22) positioned so as to overlap a region that includes part of the frame region of the display panel and part of a peripheral display region (10D) within the display region which adjoins the part of the frame region. The display device further includes a housing (30) which has a housing portion (36) provided at least on a side surface (10b) of the display panel. Part of light going out from the part of the peripheral display region and/or part of light entering the housing portion on a rear side goes out on a front side of the housing portion (36).

Abstract: A method 200 of manufacturing a (part of) color ring is provided. The color ring converts a color of light emitted by a light emitter into at least one other color. The method (200) comprising the steps of: i) pressing (102) a first ring body of a first granulated precursor comprising a first luminescent material for converting the color of the light of the light emitter into a first one of the at least one other color, and ii) sintering (104) the first ring body for obtaining a first ceramic ring. The color ring comprises at least a segment of the first ceramic ring.

Abstract: A lighting device, comprising a shield element and at least a first light source, the first light source within a space defined by portions of the shield element, the shield element comprising at least one vent, the shield element blocking the first light source from direct view from locations outside the shield element. Also, a lighting device, comprising a shield element and at least a first light source, the shield element comprising regions that define an opening, the first light source within a space defined by portions of the shield element and the opening. Also, a shield element.