Abstract: An optical device includes an optical monolith having inclusions for diffusing light.

Abstract: The present invention relates to an illumination device comprising at least one light source generating a light beam and at least one light beam diffractor. The light diffractor is positioned at least partially in the light beam and adapted to diffract at least a part of the light beam. The light beam diffractor includes a first diffractor section and a second diffractor section which can be moved in relation to the light beam and independently of each other. The present invention relates also to moving head light fixtures and method of forming a light beam.

Abstract: A white light emitting diode includes a blue light emitting diode (“LED”) light source, and a light conversion layer which converts incident light from the blue LED light source into white light. The light conversion layer includes a green light emitting semiconductor nanocrystal and a red light emitting semiconductor nanocrystal. The white light emitting diode has a red, green and blue color (“RGB”) color locus which is within a chrominance error range (±4?E*ab) locus from the constant hue locus of each of sRGB color coordinates, or within a chrominance error range (±4?E*ab) locus from the constant hue locus of each of AdobeRGB color coordinates.

Abstract: A battery powered device simulating a traditional wick burning candle through the combined use of a colored lens LED, electronic circuit board and integrated chip to control the flicker pattern of the said LED. The battery compartment and electronic circuits are contained within an internal housing which is placed within the body of a simulated candle shell. The colored lens LED is extended through an opening in the upper portion of the candle shell. Switches to operate the said device are placed on the bottom base of the internal housing, which is exposed on the bottom of the candle. The colored lens of the LED is such that it is light enough not to significantly impair light performance while appearing black or almost black, effectively simulating a blackened wick, when not illuminated.

Abstract: A luminaire comprising a base, an optic attached to the base, a heat sink integrally molded within the base, and a heat-generating element comprising an LED-based light source in thermal communication with the heat sink. The light source may be positioned such that light emitted by the LED is emitted into an optical chamber defined by the first housing. A second housing may comprise channels formed by opposing pairs of fin guards. The heat sink may comprise a plurality of fin assemblies connected along a perimeter of a heat-generating element contacting portion of the heat sink. A proximal edge of each fin assembly may be positioned adjacent to an outer surface of the first housing. A distal edge of each fin assembly may be positioned so as to be coextensive with a respective channel and substantially exposed to the environment external to the luminaire.

Abstract: Some embodiments set forth a customizable lighting module having interchangeable components that adapt the shape, color, and other physical characteristics of the lighting module. The customizable lighting module is comprised primarily of a lighting engine, hood, baffle or reflector, and trim ring. Baffles or reflectors of different colors, reflective finishes, and shapes can be inset within the hood. Similarly, trim rings of different colors, reflective finishes, and shapes can be used to secure the inset baffle or reflector and further customize the physical characteristics of the lighting module.

Abstract: A wavelength converting unit includes: an incident portion configured to be connected to an excited-light emitting end of a excited-light source, and on which excited light emitted from the excited-light source is made incident; a wavelength converting member configured to convert the excited light into wavelength-converted light of a desired wavelength; a light transmitting member configured to transmit the excited light and the wavelength-converted light; a reflector configured to reflect at least part of the wavelength-converted light; and an emitting portion configured to emit at least part of the at least part of the wavelength-converted light reflected by the reflector to outside. At least part of the light transmitting member is continuously formed to extend from the incident portion to the emitting portion, and part of an external surface of the light transmitting member has the reflector.

Abstract: An illumination system and a projection device comprising the same are provided. The projection device further comprises an imaging system. The illumination system comprises a first light source, a dichroic element and a wheel plate. The dichroic element comprises a first dichroic portion and a second dichroic portion. The first light source provides a first wave band light, which is reflected to the wheel plate by the first dichroic portion. When being projected onto a wave band transforming area of the wheel plate, the first wave band light will be transformed into a second wave band light by the wave band transforming area and then emits through the first dichroic portion and the second dichroic portion. When being projected onto a reflecting area of the wheel plate, the first wave band light will be reflected by the reflecting area to emit through the second dichroic portion.

Abstract: A light source device includes: first and second solid-state light source units disposed opposite to each other, each unit including solid-state light sources; a reflection unit; a condensing part; and a fluorescence emission plate excited with a condensed light beam. The light sources in each of the units are arranged two-dimensionally with the optical axes oriented in an x-axis direction. Each column of the light sources of the first and the second light source units are arranged alternately in the y-axis direction. The reflection unit reflects the light beams from the light source units in the z-axis direction so as to be arranged into a two-dimensional array in a xy plane. A density of the reflected light beams in the x-axis direction is higher than that of the arrangement of the light sources in the z-axis direction. Light from solid-state light sources are condensed and combined efficiently, with a compact configuration.

Abstract: The invention relates to a light emitting device (2) comprising a primary light source (10), a light converting medium (14) and an optical structure (16). The primary light source is disposed on a substrate (11). The light converting medium comprising phosphors (14) is arranged for converting at least a part of the primary light to secondary light (II) of a different wavelength. The light converting medium is in a remote phosphor configuration. The optical structure is arranged for receiving a part of the secondary light (II) from the light converting medium and is configured for redirecting the part of the secondary light in a direction towards the first plane but away for the primary light source (10). By providing an optical structure redirecting the secondary light away from the primary light source, absorption of the secondary light by the primary light source can be substantially reduced or eliminated.

Abstract: According to one embodiment, the luminescent material exhibits a luminescence peak in a wavelength ranging from 490 to 580 nm when excited with light having an emission peak in a wavelength ranging from 250 to 500 nm. The luminescent material has a diffraction peak intensity of the largest peak detected at 2?=30.1-31.1° that is higher than the diffraction peak intensity of the peak detected at 2?=25.0-26.0° in X-ray diffraction by the Bragg-Brendano method using Cu-K? line and its composition is represented by (Sr1?xEux)3?yAl3+zSi13?zO2+uN21?w (a part of the Sr may be substituted by at least one selected from Ba, Ca, Mg and Na, 0<x?1, ?0.1?y?0.3, ?3?z??0.52, and ?1.5?u??0.3, ?3<u?w?1).

Abstract: A semiconductor light emitting apparatus includes a solid-state light emitting device and a wavelength converter that converts primary light emitted by the solid-state light emitting device into secondary light at a loner-wavelength. The wavelength converter is an inorganic compact that includes a transparent wavelength conversion layer containing phosphor having a garnet crystal structure. The phosphor contains a constituent element group composed of at least one element selected from the group consisting of Mg, Ca, Sr, Ba, Y, La, Gd, Tb, and Lu. Part of the constituent element group is substituted by Ce3+ and the amount of Ce3+ is 1 atomic % less of the entire constituent element group. As a result, a high-power and highly reliable semiconductor light emitting apparatus suitable as a point light source is provided. In addition, such a semiconductor light emitting apparatus is manufactured through a simple application of traditionally used practical technicians.

Abstract: A lighting device including at least one conversion element and a least one LED, which emits light into the conversion element. The light is then converted and emitted with a high radiant flux. The at least one LED emits light in the wavelength range of ?220 nm to ?800 nm and the at least one conversion element converts at least part of the light from the at least one LED to light in the wavelength range of >300 nm to <1000 nm. In some embodiments, the at least one conversion element includes a ceramic conversion material.

Abstract: A semiconductor light source apparatus can adjust a color tone of white light. The semiconductor light source apparatus can include a phosphor wheel, a motor rotating the phosphor wheel, a light source and a moving module. The phosphor wheel can include at least one phosphor layer configured to emit excited light. The phosphor wheel can vary a mixing ration of white light that is created by light emitted from the light source and the light excited by the at least one phosphor layer in accordance with a position of the phosphor wheel emitted by the light source. The moving module that is connected to the motor can adjust the position of light emitted from the light source. Thus, the disclosed subject matter can provide a semiconductor light source apparatus that can adjust a color tone of white light and a lighting unit using the light source apparatus, which can be used for a projector, lamp, etc.

Abstract: Solid state light sources, lighting devices and lamps arranged to provide emission with a warm temperature and high CRI. One embodiment of a solid state lighting device according to the present invention comprises a light emitting diode (LED) device capable of emitting light in an emission spectrum. A filter arranged so that at least some light from the LED light source passes through it, with the filter filtering at least some of one or more portions of the light source emission spectrum. The resulting light source light has a different temperature but substantially the same CRI after passing through the filter.

Abstract: A stage lighting fixture having: a casing having a closed first end and an open second end; 5 a light source housed inside the casing, close to the first end, and which emits a light beam along an optical axis; an optical assembly positioned to intercept the light beam, and having a focal point located between the light source and the optical assembly; and a reflector coupled to the light source; the reflector and the light source being designed and coupled to concentrate the light beam substantially at a work point substantially coincident with the focal point of the optical assembly; and the light source being defined by a short-arc lamp to project a light bar.

Abstract: An illumination device includes: a light source device adapted to emit an excitation light beam; and a rotating fluorescent plate having a single fluorescent layer adapted to convert a part or whole of the excitation light beam into a fluorescent light beam. The fluorescent light beam includes two or more colored light beams, and the single fluorescent layer is formed on a circular disk, which can be rotated by a motor, continuously along a circumferential direction of the circular disk.

Abstract: A light source system includes two solid-state light sources, two filters, a rotary wheel, a first reflector, a second reflector and a multiband filter is provided. The rotary wheel has a first surface and a second surface opposite to the first surface. The two solid-state light sources and the two filters are disposed in front of the first surface. The first surface includes a first waveband converting region, a reflecting region and a transmission region. The second surface includes a second waveband converting region is symmetrical to the first waveband converting region. The first reflector, the second reflector and the multiband filter are disposed in front of the second surface. Furthermore, the multiband filter is disposed between and optically coupled with the first and the second reflectors. With these arrangements, the light source system could provide light beams of different wavebands to the light valve of a projector.

Abstract: A light-emitting module includes a substrate, an LED chip arranged on a main surface of the substrate, a sealing member covering the LED chip on the main surface of the substrate and converting a wavelength of the light produced by the LED chip, and a heat transfer member thermally connecting the sides of the LED chip to the main surface of the substrate and dissipating heat produced by the LED chip to the substrate. The heat transfer member is made up of a silicone resin having particles dispersed therein, the particles being nanoparticles of ZrO2 and microparticles of MgO, which have higher thermal conductivity than the silicone resin.

Abstract: The invention relates to a light emitter adapted for emitting light with a predefined angular color point distribution, to a method of use for a light emitter in video flash applications, in automotive headlight applications and/or in automotive lamp applications, and to a method, adapted for generating light with a predefined angular color point distribution.

Abstract: A phosphor plate may be provided that includes a base plate transmitting light; and a lens being disposed on at least one of both surfaces of the base plate and including a fluorescent material.

Abstract: A light source system comprising an illumination component, a color wheel and a light uniformization module is provided. The illumination component is disposed on a first axis to provide light beams. The color wheel defines a second axis to rotate thereabout, wherein the second axis is deflected from the first axis by an angle. The light beams provided from the illumination component are substantially focused at the first axis and onto the color wheel. The light uniformization module is disposed on the first axis after the color wheel to receive a portion of the light beams and uniformize the light beams to travel along the first axis.

Abstract: Methods and systems consistent with some embodiments presented provide methods for denying visual access to a first area from a target area. In some embodiments, methods for denying visual access from a target area may include generating a structured light pattern and projecting the structured light pattern from onto the target area. The structured light pattern may be moved at a rate and in a pattern to deny visual access of a first area from the target area. In some embodiments, the rate and the pattern may be chosen based on characteristics of the target area.

Abstract: An illumination system includes LED arrays (1, 2, 3) which are packaged on a heat dissipation plate and consist of several LED chips, an optical combining device (4) which can combine the light emitted by respective LED chips to one beam, a focusing lens (5) which can focus the light emitted by the optical combination device to a light-emitting window (11), a transmission type wavelength converter (7) and a control processing device. When white light is provided, the control processing device controls the LED chips with predetermined wavelengths to emit light and the transmission type wavelength converter is positioned into the light path to generate excited light.

Abstract: A U-turn lens for a recessed light fixture comprising a tubular, transparent, internally reflective, hollow cylindrical lens having a closed top including a hot mirror receiving focused light from a reflector lamp, an inside diameter extending to an open lower end where focused light is emitted and collimated light is received through the lens outside the inside diameter to an angular reflector reflecting the collimated light transversely to illuminate a concave decorative shade.

Abstract: A lighting device has a lighting unit and a housing unit. The lighting unit includes a light source unit and a heat sink. The light source unit has a light source. The heat sink supports the light source unit. The heat sink has at least one open groove that allows air to flow between an inside of the lighting unit and an outside of the lighting unit. The housing unit houses at least a part of the lighting unit to support the lighting unit.

Abstract: The invention relates to a lighting device (10), comprising a multistage lens (1, 2, 3), which spectrally and spatially collimates the transmitted light (5, 6). The illumination device is particularly well suited for use in a display unit.

Abstract: A light emitting device with at least one LED die, a filter element and a reflective element. The filter element may be configured to preferentially attenuate light passing through the filter element, such that light output has improved color uniformity when compared to similar light emitting devices without a filter element.

Abstract: A multicolor illumination device uses a blue or UV light source to excite wavelength conversion materials and a red light source as a direct illumination light. The lights from the two light sources are combined onto a moving wavelength conversion element. The moving wavelength conversion element includes multiple segments alternatingly disposed in the paths of the incident lights, including a first segment with no wavelength conversion material, and other segments which may carry blue, green and/or yellow wavelength conversion materials. A control system controls the on/off of the two light sources so that when the first segment is in the light path, the red light source is on and the blue/UV light source is off, and vice versa when the other segments are in the light path. Alternatively, dichroic filters may be fixedly provided on the segments of the wavelength conversion element to block the blue/UV or red light.

Abstract: A recording apparatus records information onto a recording medium. The recording apparatus is provided with: a near-field light device; and a control unit for controlling the near-field light device. The near-field light device is provided with: a light source; a quantum dot structure which is laminated on the light source; a plurality of quantity dots which are included in the quantity dot structure and each of which generates near-field light on the basis of light emitted from the light source; and an output end which is configured to output at least one portion of energy of the near-field light to the exterior of the quantity dot structure. The control unit of the recording apparatus controls the light source to emit the light upon recording the information, thereby increasing temperature of a region of the recording medium based on a size of the output end.

Abstract: A light emitting device is produced using one or more light emitting diodes within a light mixing cavity formed by surrounding sidewalls. The light emitting device includes a light adjustment member that is movable to alter the shape or color of the light produced by the light emitting device. For example, the light adjustment member may alter the exposure of the wavelength converting area to the light emitted that is emitted by the light emitting diode in the light mixing cavity. Alternatively, the height of a lens may be adjusted to change the width of the beam produced. Alternatively, a movable substrate with areas of different wavelength converting materials may adjustably cover the output port of the light mixing cavity to alter the color point of the light produced.

Abstract: The invention relates to a filter device for an illumination system, especially for the correction of the illumination of the illuminating pupil, including a light source, with the illumination system being passed through by a bundle of illuminating rays from the light source to an object plane, with the bundle of illuminating rays impinging upon the filter device, including at least one filter element which can be introduced into the beam path of the bundle of illuminating rays, with the filter element including an actuating device, so that the filter element can be brought with the help of the actuating device into the bundle of illuminating rays.

Abstract: A luminaire (1) comprising a one-piece, transparent, tubular housing (3) with an annular wall (5). Said housing comprising an elongated light emission window (9), a reflector area (11) inside the housing and adjacent the light emission window, an electrical contacting support (13) inside the housing and remote from the light emission window, and two open ends. Elongate reflectors (21) extend towards the electrical support in a direction transverse to the axis. Two end parts (53) close the tubular housing (3) as each end part is provided at a respective open end and is electrically connected to a respective electrical contact. The lamp (17), together with the electrical contacts, can be replaced in the housing without the necessity to remove the reflectors as well.

Abstract: An illumination system includes a wavelength-transforming device, a solid-state light-emitting element and a filter wheel. The wavelength-transforming device comprises a segment and a wavelength-transforming element disposed on the segment. The solid-state light-emitting element emits first color light in first waveband region to the wavelength-transforming device. The filter wheel is disposed on one side of the wavelength-transforming device for filtering lights via rotating. The first color light is excited as second color light in second waveband region by the wavelength-transforming device, so that the second color light is outputted with the rest of the first color light. The first and second color lights are transmitted through the filter wheel, such that three primary color lights are sequentially projected.

Abstract: A light emitting sign comprising a plurality of blue LEDs operable to generate blue excitation light and a light emitting display surface comprising a light transmissive substrate and at least one phosphor overlaying at least a portion of one face of the substrate. The phosphor is configured to absorb at least a portion of the blue light generated by the LEDs and, in response, to emit light of a selected color other than blue. Regions of the display surface intended to generate blue light do not include the phosphor.

Abstract: A light source is configured to emit a narrow peak at a discrete spectral band, especially at a primary color wavelength. The light source can have a plurality of narrow peaks to simulate the effect of a broadband light source. A subject is provided with a pigment, such as certain rare earth lanthanides, with a strong absorption peak at a corresponding narrow spectral band. The pigment has a nominal color when illuminated by a true broadband light (e.g., sunlight) that does not have a narrow peak at the discrete spectral band, and has a different color when illuminated by the light source that has a narrow peak. This color shift can be used for security authentication, information and decorative applications.

Abstract: An illuminant device includes a housing, an circuit layer, at least a light emitting diode (LED) die, a driving circuit element, a plurality of electrical elements and an conductive connector. The housing has a supporting part and a platform-part connected to a side of the supporting part. The circuit layer is placed on the platform-part. The LED die is placed on the platform-part and electrically connected to the circuit layer. The driving circuit element is placed on the platform-part and electrically connected to the circuit layer. The electrically elements are placed on the platform-part and electrically connected to the circuit layer. The conductive connector is connected to another side of the supporting part.

Abstract: A night vision compatible backlight is disclosed. The backlight may include a base layer and a spacer layer. The spacer layer defines a plurality of arrays of openings, each includes a first set of openings and a second set of openings alternately distributed along the array. The backlight also includes a first set of LED modules electronically connected to the base layer through the first set of openings and a second set of LED modules electronically connected to the base layer through the second set of openings. The backlight further includes a filtering layer for providing infrared filtering for the second set of LED modules. The first set of LED modules and the second set of LED modules may be selectively energized to provide: a first mode where the first set of LED modules are energized, and a second mode where only the second set of LED modules are energized.

Abstract: An optical filter having improved visibility under external light and an organic light-emitting device including the same.

Abstract: A light source device 10 includes an excitation light generation section 20 having a solid-state light source array 22 having a solid-state light source 25 adapted to generate an excitation light, an excitation light generation section 30 having a solid-state light source array 32 having a solid-state light source 35 adapted to generate an excitation light, an excitation light combining section 50 adapted to combine the excitation light from the excitation light generation section 20 and the excitation light from “30” with each other, a light collection optical system 60 adapted to collect the excitation light at a predetermined light collection position, and a fluorescence generation section 70 having a fluorescent layer adapted to generate a fluorescence from at least a part of the excitation light collected by the light collection optical system 60.

Abstract: Disclosed is a light emitting device package including a reflective substrate including a chip mounting region, a circuit substrate disposed on the reflective substrate, the circuit substrate including an inside edge defining the chip mounting region and at least one aligning hole disposed at a position spaced from the inside edge, and at least one light emitting diode chip disposed in the chip mounting region, the at least one light emitting diode chip being connected to the circuit substrate through a wire.

Abstract: An optical structure can include a nanocrystal on a surface of an optical waveguide in a manner to couple the nanocrystal to the optical field of light propagating through the optical waveguide to generate an emission from the nanocrystal.

Abstract: A light emitting device includes a substrate; a light emitting element disposed on the substrate; and a wavelength conversion member disposed on or above the substrate, the wavelength conversion member covering the light emitting element spacing apart therefrom, and having a level difference at an outer peripheral portion of a lower end of the wavelength conversion member, the lower end being joined to the substrate via a light transmitting member. In addition, the light emitting device includes a light blocking member disposed on the substrate and disposed between the light emitting element and the light transmitting member. Further, the wavelength conversion member is configured so that the lower end thereof extends from a top of the light transmitting member to a side of the light transmitting member.

Abstract: A stage light fixture is provided with a main body extending along a longitudinal axis and having an outer surface; a light source arranged inside the main body at a first end of the main body and suitable to emit a light beam substantially along the axis; and with an objective lens arranged at a second end of the main body; the main body is provided with a plurality of inserts to fix to the outer surface, by means of a magnetic coupling, a filter suitable to intercept the light beam which crosses the objective lens; the inserts are made of a magnetic material and/or of a metallic material suitable to be attracted by a magnetic material.

Abstract: The present invention provides a phosphor comprising a europium-activated sialon crystal having a basic composition represented by the following formula (1) [Formula 1] formula: (Sr1-x, Eux)?Si?Al?O?N???(1) (wherein x is 0<x<1, ? is 0<??4 and ?, ?, ? and ? are numbers such that converted numerical values when ? is 3 satisfy 9<??15, 1???5, 0.5???3 and 10???25), and the sialon crystal includes at least one non-Eu rare earth element selected from Sc, Y, La, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu in a proportion of 0.1% by mass or more and 10% by mass or less, and the phosphor emitting green light by being excited by ultraviolet light, violet light or blue light.

Abstract: A portable device having within it a multicolor illumination arrangement comprising: a surface; a plurality of light sources, (1a, 1b, 1c, 1d, 1e),at least one of the plurality of light sources being capable of generating two or more emission colors; and drive means (17) for causing the emission color of the at least one light source to vary; whereby the illumination arrangement can produce a varying illumination through at least part of the surface.

Abstract: LED packages are disclosed that are compact and efficiently emit light, and can comprise encapsulants with planar surfaces that refract and/or reflect light within the package encapsulant. The packages can comprise a submount with one or more LEDs, and a blanket conversion material layer on the LEDs and the submount. The encapsulant can be on the submount, over the LEDs, and light reflected within the encapsulant will reach the conversion material, where it is absorbed and emitted omnidirectionally. Reflected light can now escape the encapsulant, allowing for efficient emission and a broader emission profile, when compared to conventional packages with hemispheric encapsulants or lenses. In certain embodiments, the LED package provides a higher chip area to LED package area ratio. By using an encapsulant with planar surfaces, the LED package can provide unique dimensional relationships between the various features and the LED package ratios, enabling more flexibility with different applications.

Abstract: A two-dimensional wedge shaped UV and IR filter is formed by or substantially same size pieces of glass forming a two-dimensional wedge. The wedge reflects radiation in four different directions.

Abstract: A light emitting device includes a light emitting element that includes a reflection layer formed on a substrate, a light emitting layer formed on the reflection layer, and a semi-reflection layer formed on the light emitting layer, so as to transmit a portion of light from the light emitting layer and to reflect a remaining portion of the light. The light emitting element is configured as an optical resonator that causes a portion of the light outputted from the light emitting layer travelling at a predetermined angle ?, larger than 0 degrees with respect to a direction perpendicular to the reflection layer, to resonate between the reflection layer and the semi-reflection layer and extracts the light from the side of the semi-reflection layer.

Abstract: Presently disclosed is a lighting system and methods of using the lighting system for in vitro potency assay for photofrin. The lighting system includes a lamp housing, a first lens, an infrared absorbing filter, an optical filter, and a second lens. The lamp housing includes a lamp and a light-port. In operation, broad spectrum light from the lamp exits the lamp housing by passing through the light-port. The first lens then collimates the broad spectrum light that exits the lamp housing through the light-port. The infrared absorbing filter then passes a first portion of the collimated broad spectrum light to the optical filter and absorbs infrared light of the broad spectrum light. The optical filter then passes a second portion of the collimated broad spectrum light to the second lens. The second lens then disperses the second portion of the collimated light to provide uniform irradiation of a cell culture plate. A method of using the lighting system for studying a photosensitizer is also disclosed.