Abstract: A display device comprises a support, on which there are arranged LED and a light distributing body above the luminous means with a direction of light emission away from the support and the LED. The light distributing body is a three-dimensional body with a light entrance side facing towards the LED and a light exiting side facing away from the LED. The light distributing body consists of transparent material and the light entrance side is shaped to optimise uniform light distribution from the LED to the light exit side, which may take the form of a diffuser.

Abstract: A light guide member includes a main body part, and an entrance surface, a strip-shaped exit surface and a strip-shaped reflecting surface that are formed on the main body part. The illumination light is output from the exit surface. The reflecting surface extends in the first direction on a face placed opposite to the exit surface of the main body part and reflects the illumination light. The reflecting surface includes, on a flat face, a reflection pattern surface provided with a plurality of minute reflective concave parts having a function of reflecting the illumination light toward the exit surface. The reflective concave parts each include a deflection surface which deflects the illumination light in a direction in which a reflection angle widens in a cross sectional view in a second direction that is orthogonal to the first direction in a horizontal direction, and then reflects the illumination light.

Abstract: We describe a holographic image projector, comprising: a laser light source to provide light at a laser wavelength; a first spatial light modulator (SLM) to display a hologram, wherein said first SLM is illuminated by said laser light source; intermediate image optics to provide a first intermediate real image plane at which a real image produced by said hologram displayed on said first SLM is formed; a wavelength-conversion material located at said first intermediate real image plane to convert said laser wavelength to at least a first output wavelength different to said laser wavelength; and second optics to project light from said real image at said output wavelength to provide a displayed image.

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: A light source using a wavelength conversion member is increased in brightness. A wavelength conversion element 11 includes a plurality of wavelength conversion members 12 bundled together, each containing a dispersion medium and phosphor powder dispersed in the dispersion medium.

Abstract: LED lighting using optical elements with spectral notching is disclosed. Embodiments of the invention provide an optical element and LED devices and systems using such an optical element, where spectral notch filtering introduced by the optical element improves the color rendering index (CRI) of emitted light. In some embodiments of the invention, the optical element is made to act as a notch filter by including a rare earth compound such as neodymium oxide in or on the material of which the optical element is made. A color pigment can also be used to impart notch-filtering properties to an optical element. An optical interference film can also be used. The optical element may be included in an LED device such as a multichip component or may be used as an enclosure or reflector for an LED lighting system such as a lamp or fixture.

Abstract: Light directing film (100) is disclosed. The light directing film includes a structured major surface (110) that includes a plurality of microstructures (150) extending along a first direction (142) and a plurality of elevated portions (160) disposed on the plurality of microstructures. The number density of the elevated portions across the light directing film is D. Each elevated portion includes a leading edge (162) and a trailing edge (164) along the first direction. The light directing film can be divided into a plurality of same size and shape grid cells that form a continuous two-dimensional grid. The area of each grid cell is approximately 1/D. Each of at least 70% of the grid cells includes a single leading edge (162) of an elevated portion (160).

Abstract: Provided is a wavelength converting device having excellent optical output. The wavelength converting device includes a substrate and a wavelength converting member disposed on the substrate. The wavelength converting member includes a fluorescent material powder and a binder binding the fluorescent material powder. An upper surface of the wavelength converting member serves as a light emitting surface which includes upper surfaces of the fluorescent material powder and an upper surface of the binder. The binder has first recesses formed adjacent to the fluorescent material powder in the upper surface of the binder.

Abstract: An optical component is provided in the present disclosure. The optical component, which can be used in a backlight module or a display apparatus, comprises a substrate and optical medium poles embedded in the substrate. A refractive index difference between the substrate and the optical medium poles is greater than 0.4. A backlight module and a display apparatus are also provided.

Abstract: Optical films for enhancing light extraction from self-emissive pixelated OLEDs, without introducing significant pixel blur, are disclosed. The extraction films include a flexible carrier film, and a first and second layer carried by the carrier film. The first layer has a nanovoided morphology, includes a polymer binder, and may have a refractive index less than 1.35 or 1.3. An embedded structured surface of light extraction elements is formed between the first and second layers. The extraction film includes a major coupling surface for attachment to an outer surface of the light source. The film is configured such that a land portion between the structured surface and the major coupling surface is thinner than a specified amount, e.g., less than 50, 25, or 10 microns, or less than a thickness of the carrier film.

Abstract: A luminaire includes an LED based illumination device with a light emitting area and an optical element that is configured to produce a hybrid emission pattern with a spot beam emitted within a predetermined far field angle and a background level spherical emission pattern. The optical element, for example, may be configured with an input port and an output port, and a perimeter that increases in size from the input port to a maximum perimeter and decreases from the maximum perimeter to the output port. The optical element receives an amount of light from the LED based illumination device at the input port, emits a first portion of the light from a curved, semitransparent sidewall, and emits a second portion of the light at the output port, wherein the emission area of the output port is less than a maximum perimeter of the optical element.

Abstract: An apparatus for safe carriage of a drink vessel within a darkened area, the apparatus including a receptacle having an upper opening, the receptacle's upper opening being fitted for nestingly receiving the drink vessel; the apparatus further including an attached and underlying illumination component case, the illumination component case housing light emitter, battery, electrical conductor and electrical switching elements.

Abstract: A color filter array includes a plurality of filters, each having one of a plurality of types of spectral sensitivity and being disposed at the location of a corresponding one of a plurality of pixels. The filters of a predetermined type selected from among the plurality of types are arranged at the locations of the pixels in a checkered pattern, and the filters of some or all of the other types are randomly arranged at the pixel locations at which the filters of the predetermined type are not present.

Abstract: A vehicle light assembly includes an array of light sources mounted in a generally planar base. An optical element includes a first surface having a first optical design and a second surface having second optical design. The second optical design includes a wedge having a first wedge wall and a second wedge wall that converges with the first wedge wall. The second wedge wall extends at an angle to the first wedge wall. A bezel surrounds the base and the optical element, and an outer lens is positioned adjacent the outside surface of the optical element. The optical element is between the base and the outer lens, and the outer lens has an inner surface including an optical design.

Abstract: Disclosed is an improved backlit indicator knob.

Abstract: According to an embodiment, a polyhedron may be provided. The polyhedron may include a first luminescent face; and a second luminescent face.

Abstract: The instant disclosure relates to a light bulb, which includes a connecting cap, a heat-dissipating seat, a LED module, a light-guiding member, and a bulb. The heat-dissipating seat is disposed on one end of the connecting cap, and the LED module is disposed on the heat-dissipating seat. The light-guiding member is connected to the heat-dissipating seat and covers the LED module. At least one microstructure is formed on the surface of the light-guiding member for changing the light projection path. The bulb is arranged over the light-guiding member. Thereby, the light bulb can illuminate a wider area and achieve more uniform brightness. A light-guiding member is also disclosed.

Abstract: An edge-type backlight module and a direct-type backlight module with a optical device are provided. The optical device comprises an array layer and a second refractive layer. The array layer has a first refractive index (n1) and contains pluralities of lenticular lens disposed on a base surface side by side. The lenticular lens contains a curving structure with a peak, a trough, a curvature radius (R), a width (P) and an altitude (H) between the peak and the trough. The trough is disposed on the base1 surface. The array layer has a first critical angle (?1c) relative to the normal of the base surface and satisfies ? 1 ? c = sin - 1 ? ( 1 n 1 ) and H = R 1 + K ? [ 1 - 1 - ( 1 + K ) ? ( P 2 ? R ) 2 ] . The conical constant (K) of the lenticular lens ranges from ?2.1 to ?1.5.

Abstract: In a time-multiplexed structured (coded) light camera, the coded light patterns are formed by means of an array of laser sources, and binarizations of the light patterns are performed by computing the dark and bright frames from the code patterns themselves.

Abstract: An improved method to produce artificial light for plant cultivation, an illumination device with a semiconductor light emission solution and device suited for plant cultivation in a greenhouse environment are described. The best mode is considered to be a lighting device with binary alloy quantum dots (110, 120, 130, 140, 150, 160) made by colloidal methods to produce a size distribution of quantum dots that produces an emission spectrum similar to the photosynthetically active radiation (PAR) spectrum. The methods and arrangements allow more precise spectral tuning of the emission spectrum for lights used in plant (310, 311) cultivation. Therefore unexpected improvements in the photomorphogenetic control of plant growth, and further improvements in plant production are realized.

Abstract: Apparatus for illuminating a feature on a transparent light transmitting substrate or window: the substrate is capable of trapping light within itself and propagating the light along the substrate with total internal reflection. A light source is connected by an optical arrangement positioned with respect to one of the surfaces of the substrate for directing light into the substrate at an incident angle selected for propagation of light along the substrate. An extraction feature at a location on the surface of the substrate is configured to illuminate internal reflection at the feature, so that the feature becomes illuminated. Arrangements for the shape, orientation and adjustment of the optic, for configurations of the feature, for coupling the optic and also for coupling the feature to the substrate and particularly its surface are disclosed.

Abstract: Light directing film is disclosed. The light directing film includes a first structured major surface and an opposing second major surface. The first structured major surface includes a plurality of unitary discrete structures. Each unitary discrete structure includes a light directing portion that is primarily for directing light and includes a plurality of first side facets. Each first side facet makes an angle with the plane of the light directing film in a range from about 35 degrees to about 55 degrees. Each light directing portion also includes a first base that is defined by the plurality of first side facets and has a first minimum dimension. Each light directing portion also has a first maximum height. Each unitary discrete structure also includes a bonding portion that is primarily for bonding the light directing film to a surface. The bonding portion is disposed on and between the plurality of first side facets and includes a plurality of second side facets.

Abstract: Devices and corresponding methods of use are described herein that may include an enclosing structure defining a closed loop flow path and a system generating a plasma at a plasma site, e.g. laser produced plasma system, where the plasma site may be in fluid communication with the flow path. For the device, a gas may be disposed in the enclosing structure which may include an ion-stopping buffer gas and/or an etchant. A pump may be provided to force the gas through the closed loop flow path. One or more heat exchangers removing heat from gas flowing in the flow path may be provided. In some arrangements, a filter may be used to remove at least a portion of a target species from gas flowing in the flow path.

Abstract: A one-piece, sloped baffle includes a generally cylindrical central opening having a central axis extending between an open circular end and an open elliptical end. A plane defining the open circular end is perpendicular to the central axis. A plane defining the open elliptical end is at an oblique angle relative to the central axis. The baffle further includes an opening extending between the ends and a pair of opposing edges substantially parallel with the central axis and on opposite sides of the opening. First projections are positioned on opposite sides of the opening and aligned with the opposing edges. Second projections are positioned on opposite sides of the opening at a radial distance from the first projections. The baffle further includes a plurality of grooves that extend circumferentially around an inner surface of the baffle.

Abstract: There is provided a high power laser rotational optical assembly for use with, or in high power laser tools for performing high power laser operations. In particular, the optical assembly finds applications in performing high power laser operations on, and in, remote and difficult to access locations. The optical assembly has rotational seals and bearing configurations to avoid contamination of the laser beam path and optics.

Abstract: A modular approach to a pattern illumination system for selective excitation of microparticles is used. A dual-channel pattern module having two single-channel pattern modules are oriented at a non-zero offset angle to each other. In this arrangement, a galvo-scanner based phase-shifting module is shared between the two channels. A set of tilt mirrors are used to direct the beams from the pattern modules onto the target plane. Additional layers of pattern modules can be added to accommodate any desirable number of additional channels. The additional layer(s) may be rotationally off-set from the other layer(s) by an angular amount to simplify the layout of optical components. A remote light source module may be connected to the pattern modules through optical fiber.

Abstract: A LGP plate-to-plate manufacturing includes the steps of: preparing an optical substrate with a first surface and a second surface; mechanically extruding a first integrated microstructure on the first surface of the optical substrate; coating an optical layer on the first or second surface of the optical substrate; and curing the optical layer to directly form a second microstructure on the first or second surface of the optical substrate; wherein the first integrated microstructure and the second microstructure are separately formed at a time to provide a light guide plate structure. In an embodiment, an additional optical layer is provided on the optical substrate.

Abstract: A lighting device, a method and a light wavelength conversion wheel assembly (4) for color tuning thereof. The lighting device includes a light source. The light source includes an excitation light source (1) and a movement unit. The movement unit includes a light wavelength conversion wheel assembly (4) having a heat dissipation base (40). The heat dissipation base (40) is divided into a number of areas (41) carrying different excited materials (46), and is controlled to rotate intermittently or rotate to a predetermined angle around a wheel shaft serving as a center. The heat dissipation base (40) faces the exciting light and is illuminated locally, and the illumination area is not larger than any of the areas (41) carrying the excited materials (46). A control unit controls the rotation so that a predetermined area is rotated into the illumination area of the exciting light.

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: An object of the present invention is to configure a lighting device to discriminate the front and back sides of a substrate at low costs. In the lighting device of the present invention, a diffuser plate 30 as an optical member 15 includes: a light-transmissive substrate 32; an optical pattern 33 formed on the substrate 32 and applying an optical action to light; and a discrimination pattern 34 configured to discriminate between a first position (normal position) of the substrate 32 and a second position (non-normal position) of the substrate 32 reversed from the first position, formed on a first plane 30a that is a surface of the substrate 32 on which the optical pattern 33 is formed, and made of the same material as that of the optical pattern 33.

Abstract: A lighting system is provided that includes: an optical device including a cylindrical lens made up of a liquid lens, an emission unit including an axis line in the Z-axis direction, and a reflecting mirror configured to reflect light emitted from the emission unit. The cross-sectional shape of a light reflecting portion when cutting away the reflecting mirror at a virtual plane perpendicular to the Z axis is a part of a parabola. The axis line of the emission unit is positioned between the vertex-of the parabola and a focal point. Thus, there is provided a lighting system in which an optical device, which is made up of a liquid lens employing an electrowetting phenomenon, having an arrangement and configuration whereby high optical power can be obtained.

Abstract: An optical component for an LED lighting arrangement comprises a mixture of a transparent material and one or more photoluminescent (phosphor) materials. The phosphor material has the property of emitting photoluminescent light when illuminated by light of a wavelength range 300 to 500 nm. The transparent material comprises a silicone or an epoxy. The mixture of the transparent material and the phosphor material can be provided as a layer on at least a part of a surface of the component. In some embodiments the component has a concave and/or convex surface and the layer containing the phosphor material is provided on at least a part of these surfaces.

Abstract: A ring light illuminator with annularly arranged light sources is disclosed. To each light source there corresponds a light collector, a homogenizing means for light from the light source, and an anamorphic system for imaging an output of the homogenizing means into an area to be illuminated. The anamorphic system compensates deformations of a cross-sectional area of a light beam in a surface to be illuminated due to an oblique angle of incidence of the light beam onto the surface. The homogenizing means in embodiments is a rod, into which light from the light collector is directed. The end of the rod opposite the light collector is imaged by the anamorphic system into the area to be illuminated on the surface. Also disclosed is a method for illumination.

Abstract: A light guide body has a light guide block having a light incident side and an opposite light emitting side, the light guide block includes an inwardly curved surface, two toothed surfaces at opposite sides of the inwardly curved surface, and a light emitting surface located at the light emitting side. The toothed surfaces each has a number of teeth, with widths of bottom sides of the teeth descending in a geometric sequence with a common ratio greater than 0 and less than 1 in a direction away from the inwardly curved surface. The inwardly curved surface and the toothed surfaces are located at the light incident side. A light source assembly using the light guide body is also provided.

Abstract: An optical component for an LED lighting arrangement comprises: a transparent material having a concave surface and a coating of one or more photoluminescent (phosphor) materials on a part of the concave surface. The phosphor material emits photoluminescent light when illuminated by light of a wavelength in range 300 to 500 nm. The component can comprise a spherical shell, a hollow cylinder or a hemispherical shell and the phosphor material coating is provided on the inner concave surface of the component. The optical component can comprise a lens, an optical window or a waveguide.

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

Abstract: The invention proposes numerous aspects for improving greenhouses which may lead to durable improvement of the worldwide climate system.

Abstract: A secondary optical lamp guard includes an upper half portion, two clamp portions and a lower half portion, and the upper half portion has a plurality of optical refractive angles formed on an internal side of the upper half portion for improving the effect of the optical refractive angles, and the upper half portion and the lower half portion are processed by a plasma treatment to produce nanoscale holes for facilitating the dissipation of heat generated by a light source.

Abstract: An OLED display includes a first substrate including a thin film transistor and an OLED, and a second substrate on the first substrate and including a corner-cube pattern facing the first substrate.

Abstract: Provided are an optical member and a display device. The display device includes a light source, a plurality of wavelength converting particles, an approximately, and a display panel. The wavelength converting particles convert a wavelength of light emitted from the light source. The accommodating part accommodates the wavelength converting particles and has a curved surface. The display panel is configured to display images using light changed by the wavelength converting particles.

Abstract: Systems and methods are described that relate to quantum dot (QD) structures for lighting applications. In particular, quantum dots and quantum dot containing inks (comprising mixtures of different wavelength quantum dots) are synthesized for desired optical properties and integrated with an LED source to create a trichromatic white light source. The LED source may be integrated with the quantum dots in a variety of ways, including through the use of a small capillary filled with quantum dot containing ink or a quantum dot containing film placed appropriately within the optical system. These systems may result in improved displays characterized by higher color gamuts, lower power consumption, and reduced cost.

Abstract: Disclosed are an optical member and a display device. The display device includes a light source, a plurality of wavelength conversion particles to convert a wavelength of a light emitted from the light source, a receptacle receiving the wavelength conversion particles and having a protrusion on an inner surface thereof, a sealing part inserted into the receptacle to seal an inner part of the receptacle, and a display panel to display an image by receiving a light converted by the wavelength conversion particles.

Abstract: Optical films for enhancing light extraction from self-emissive pixelated OLEDs, without introducing significant pixel blur, are disclosed. The extraction films include a flexible carrier film, and a first and second layer carried by the carrier film. The first layer has a nanovoided morphology, includes a polymer binder, and may have a refractive index less than 1.35 or 1.3. An embedded structured surface of light extraction elements is formed between the first and second layers. The extraction film includes a major coupling surface for attachment to an outer surface of the light source. The film is configured such that a land portion between the structured surface and the major coupling surface is thinner than a specified amount, e.g., less than 50, 25, or 10 microns, or less than a thickness of the carrier film.

Abstract: Embodiments of the present invention include a light converting structure, a light accommodating structure, and a lighting device. The light converting structure includes a bottom conical recess to accommodate a light source, and a top conical recess to distribute the lights emitted from the light source. The light accommodating structure includes a through hole with a small opening and a large opening. A light source is accommodated in the through hole at the large opening, and the lights emitted from the light source output at the small opening. The lighting device utilizing the light converting structure and/or the light accommodating structure obtains a thinner configuration.

Abstract: An illumination chamber for illuminating an object with substantially uniform illumination and providing an image of the object, the illumination chamber includes a generally 6-faced polyhedron opaque housing, which encloses a light mixing chamber. The housing includes an object transparent glass sheet, an image transparent glass sheet and at least one light source disposed inside the housing. The object transparent glass sheet is disposed at a first of the two larger faces of the 6-faced polyhedron and image transparent glass sheet is disposed at the second large face of the 6-faced polyhedron, opposing the object glass sheet. The object to be imaged, typically a document, is disposed immediately adjacent to the external surface of the object transparent glass sheet. The image of the objects exits the housing through the image transparent glass sheet.

Abstract: In a light-guide module, a method of manufacturing the light-guide module and a backlight assembly having the light-guide module, the light-guide module includes a light-guide plate (“LGP”) and a thin-film layer. The LGP has a light-incident surface into which lights are incident and a light-exiting surface through which lights exit. The thin-film layer is formed on the LGP. The thin-film layer has a concavo-convex pattern formed on an opposite surface of a surface contacting the LGP. Accordingly, a thin-film layer having a concavo-convex pattern is formed on a light-incident surface of an LGP, so that a reflectance of light incident into the LGP may be decreased. Moreover, a light amount transmitted through the LGP is increased in accordance with a decreasing of reflectance, so that a light transmittance may be increased in total.

Abstract: The present invention is an articulating hand power tool which in one embodiment includes a head portion including a head housing configured to articulate with a main housing, a bit holder rotatably positioned within the head housing, and a lighting assembly configured to emit a first elongated beam pattern from the head portion.

Abstract: A light guide plate and manufacture methods thereof are provided. The light guide plate includes a plate body, an optical adhesive layer, and a light entrance structure layer. The plate body has a light exit surface and a light entrance surface. The light entrance surface is connected to a side of the light exit surface and intersects the light exit surface with an angle. The optical adhesive layer is attached on the light entrance surface while the light entrance structure layer is attached to the optical adhesive layer. The light entrance structure layer includes a substrate and a light-cured or thermal-cured structure. The light-cured or thermal-cured structure is made of light or thermal curable material and firmly formed on a structured surface of the substrate through a light or thermal curing process.

Abstract: A light guide member and a light irradiation module with the light guide member and an electric device with the light irradiation module are provided in the invention in which the light guide member has a cone shaped body and a ring shaped flange. The cone shaped body has an opening at an apex of one end of the cone shaped body. The ring shaped flange is extended from a circular rim of the other end of the cone shaped body. One inner surface of the opening is defined as a light incident surface, and a circular rim surface of the ring shaped flange surrounding the cone shaped body is defined as a light emitting surface.

Abstract: A lighting device, comprising a solid state light emitter and a removable encapsulant element. A lighting device element, comprising a solid state light emitter and an encapsulant holding element configured to releasably hold a removable encapsulant element. A lighting device component, comprising a removable encapsulant element. A method, comprising removing a first removable encapsulant element from a lighting device that comprises at least a first solid state light emitter and inserting a second removable encapsulant element into the lighting device. An encapsulant element comprising a substantially transparent first material and a luminescent material within the first material.