Abstract: The disclosure relates to an endoscopic light source that includes a first emitter. The first emitter may emit light of a first wavelength at a dichroic mirror which reflects the light of the first wavelength to a plurality of optical fibers. The endoscopic light source further comprises a second emitter. The second emitter may emit light of a second wavelength at a second dichroic mirror which reflects the light of the second wavelength to the plurality of optical fibers. In one embodiment, the first dichroic mirror may be transparent to the light of the second wavelength, allowing the light of the second wavelength to pass through the first dichroic mirror.

Abstract: The application belongs to the technical field of LED display screens, and particularly relates to an outdoor LED display. The Outdoor LED display comprises a box body, a display module and a plurality of control assemblies; the display module comprises a plurality of sub-modules, and each sub-module is provided with a control assembly; the box body comprises a frame and a panel installed on the frame, and the display module is connected at one end of the frame away from the panel; the panel, the frame, and the display module form an installation space for installing the control assembly. In this application, each sub-module is installed with a corresponding control assembly, and the control assembly can control the corresponding sub-module to display, thereby enhancing the display effect of the outdoor LED display.

Abstract: A modular lighting kit has a plurality of blocks of various shapes and sizes, including a powered master block and a plurality of unpowered slave blocks. The master block is illuminable independently. All blocks are magnetically attracted to each other and connect electrically when abutted together in any 2-D or 3-D arrangement such that all blocks are illuminated when connected directly or indirectly to the master block.

Abstract: A luminophore having the general empirical formula X?1?xA?y(Al1+zA?3?z)O4:E? that crystallizes in a tetragonal crystal system. X? may be Mg, Ca, Sr, Ba, and combinations thereof; A? may be Li, Na, K, Rb, Cs, and combinations thereof; E? may be Eu, Ce, Yb, Mn, and combinations thereof; 0<x<0.25; y?x; and z=0.5(2x?y).

Abstract: A flameless electric candle having a fan-driven scent diffuser. The candle includes a body portion having a translucent portion and a generally elongated cylindrical shape and housing therein a light emitting device configured to permit its emitted light to be partially visually discernible through the translucent portion. There is below the body portion, a base portion that includes a PCB, a switch, a light emitting device, a power source, a fan oriented to force air in a downwards direction away from the body portion, a pad configured to receive upon a surface thereof a fragrance or scent, openings in a wall of the base portion to allow the forced air scented by the fragrance to escape the base portion. The switch is selectable among a first mode in which the LED and fan are both on, an off mode both the LED and fan are off, and a second mode wherein only one of the LED or fan is on.

Abstract: A light source for plant cultivation includes at least two light emitting devices supplying light to a plant. Each of the light emitting devices includes a first semiconductor layer doped with a first conductivity type dopant, a second semiconductor layer disposed on the first semiconductor layer and doped with a second conductivity type dopant different from the first conductivity type dopant, and an active layer interposed between the first semiconductor layer and the second semiconductor layer. The light emitting devices emit light towards the plant under a different condition in terms of at least one of wavelength, radiation intensity, and emission timing to control the type and content of phytochemicals in the plant.

Abstract: Lit image projection lamp and assemblies and methods to use the same to generate three-dimensional images. In an exemplary embodiment of a projection device of the present disclosure, the projection device comprises a light source and a curved lens positioned at a first distance from the light source, wherein the curved lens is a lenticular lens, having a concave portion and a convex portion, and wherein the projection device is configured to generate a homogenous light bar image from light emitted from the light source that passes through the curved lens.

Abstract: A light emitting device includes: a mounting board; a light source positioned on the mounting board; a light diffusion plate; a diffuse reflector positioned between the mounting board and the light diffusion plate, and above at least part of an emission face of the light source; and a wavelength conversion layer positioned on or above the diffuse reflector.

Abstract: A white light emitting device, a light bar and a light apparatus. A relative spectrum of the white light emitting device is ?(?). A relative spectrum of a black body radiation with a corresponding color temperature is S(?). An area normalization is performed on ?(?) and S(?) to convert an equal energy spectrum ??(?) of the white light emitting device and an equal energy spectrum S?(?) of the black body radiation with the corresponding color temperature. A degree of similarity R of the equal energy spectrum of the white light emitting device and the equal energy spectrum of the black body radiation satisfies the following formula: R = 1 - ? ? ? ? i ? ? n ? ? S ? ? ( ? ) - ? ? ? ( ? ) ? ? ? ? i ? ? n ? S ? ? ( ? ) , when ?i is 380 nm, ?n is 680 nm, R?85%.

Abstract: Constructing and controlling light assemblies in a vehicle interior. A light assembly is constructed by forming a PCB layer to have a shape that is based on a shape of a corresponding vehicle component. A set of light sources are mounted onto the PCB layer and the PCB layer is attached to the corresponding vehicle component. The light assembly is connected to a light controller that supplies power and control signals to the light sources. A lighting effects engine receives an input from a user or a vehicle sub-system, determines a lighting effect corresponding to the received input, retrieves a set of lighting routines associated with the lighting effect, and transmits the set of lighting routines to a set of light controllers. The set of light controllers collectively generate the lighting effect by applying/executing the received lighting routines on the set of light assemblies.

Abstract: The present disclosure relates to a light-emitting diode (LED) filament (100) comprising a carrier (120) having a first side on which a plurality of LEDs is arranged. The plurality of LEDs comprises a LED of a first type (111) arranged to emit light having a first peak wavelength in the range 400-500 nm, a LED of a second type (112) arranged to emit light having a second peak wavelength in the range 500-570 nm, and a LED of a third type (113) arranged to emit light having a third peak wavelength in the range 590-680 nm. An encapsulant (130) encapsulates at least the LED of the first type, and at least partly the LEDs of the second type and the third type. The encapsulant (130) comprises a wavelength converting material having a higher absorption coefficient for the first peak wavelength than for the second peak wavelength and the third peak wavelength. The wavelength converting material has an emission band extending at least from 500 to 650 nm.

Abstract: Embodiments of the present disclosure disclose a flexible printed circuit, a light bar, a backlight module and a liquid crystal display device. The flexible printed circuit includes a substrate and a plurality of groups of LED pads located on the substrate, wherein each group of the LED pads is configured to mount one LED lamp bead, each group of the LED pads includes a first pad, a second pad and a third pad, the firs pad, the second pad and the third pad are arranged sequentially in a first direction, the first pad and the second pad both receive a first voltage signal, the third pad receives a second voltage signal, and the first voltage signal is different from the second voltage signal.

Abstract: LED related lighting methods and apparatus are described. Various features relate to water tight light fixtures. Some of the fixtures are spotlights while other fixture are intended for in ground use. The light fixtures in at least some embodiments include power control features. In spotlight embodiments beam angle and power or light output can be controlled without opening the light assembly or compromising the water tight seals which also protect against dirt. In ground embodiments support tilt angle setting which allow a user to set the light fixture to one or more tilt angles. Beam angle can also be changed in some embodiments as well as power control. Beam angle, power control and tilt angle adjustments are supported in some embodiments but need not be supported in all embodiments with some embodiments using one or more of the described features but not all features.

Abstract: Systems and methods are disclosed for light curtain contour detection failure compensation. In one embodiment, an example carrier may include a first base portion, a second base portion, and a platform disposed between the first base portion and the second base portion, where the platform is configured to support a first rollable cart and a second rollable cart. Some embodiments include a frame and a first light curtain assembly coupled to the frame on a first side of the carrier. The shuttle may include a first reflective component removably coupled to the first base portion on the first side of the carrier, and a second reflective component removably coupled to the second base portion on the first side of the carrier, where the first reflective component and the second reflective component are configured to reflect light emitted by the light curtain assembly.

Abstract: Various components for artificial candles and other lighting devices are described that can be used to create a realistic flame effect in the devices. The devices include a flame piece or element that extends upwardly from a body of the device. A light source can be disposed with respect to the flame piece such that the flame piece is illuminated. A variety of drive mechanisms could be disposed within the body of the device that can cause movement of the flame piece with respect to the body or housing. The flame piece can be coupled to a body or housing of the device using various components to suspend at least a portion of the flame piece within the body or housing.

Abstract: A light source device includes: a plurality of independently operable light emitting devices; a first lens facing the light emitting devices; and a second lens facing the first lens. A lower face of the first lens facing the light emitting devices includes: an entrance part located in a center where light from the light emitting devices enters, and a light guide part located outward of the entrance part and configured to guide light entering the entrance part. A lower face of the second lens facing the first lens includes a Fresnel lens face including a plurality of annular protruding portions.

Abstract: According to one embodiment, an illumination device includes a light guide having a first plane, a second plane, a side plane, a first tilted plane, and a second tilted plane, an angle formed between the side plane and the first tilted plane and an angle formed between the side plane and the second tilted plane being acute angles, a first semiconductor laser element including a first light emitting part, and a second semiconductor laser element including a second light emitting part. The first light emitting part is opposed to a first intersection part of the side plane and the first tilted plane, and the second light emitting part is opposed to a second intersection part of the side plane and the second tilted plane.

Abstract: Solid state lighting (SSL) devices and methods of manufacturing such devices. One embodiment of an SSL device comprises a support and an emitter array having a plurality of SSL emitters carried by the support. The emitter array has a central region and a peripheral region outward from the central region. Individual SSL emitters in both the central and the peripheral regions have a primary emission direction along which an intensity of light from the SSL emitters is highest, and the primary emission direction of the SSL emitters in the central region is at least substantially the same direction as the primary emission direction of the SSL emitters in the peripheral region. Additionally, a first coverage area ratio of the SSL emitters in the central region is different than a second coverage area ratio of the SSL emitters in the peripheral region.

Abstract: A wide-area solid-state illumination system employing a waveguide with two-sided segmented light emission and one or more compact solid-state light sources, such as LEDs, coupled to an edge of the waveguide. The waveguide is made of a thin sheet of optically transmissive material with a uniform thickness and has a plurality of light extraction areas distributed over the waveguide's area according to a two-dimensional pattern. The light extraction areas are separated from one another by separation areas and have different densities of light extraction surface structures. The surface structures are configured to distribute light from both sides of the waveguide. At least some of the light extraction surface structures are formed by discrete surface microstructures spaced apart from one another by distances which are greater than sizes of the individual discrete surface microstructures and at least five times less than a width of the separation areas.

Abstract: Some embodiments of the present fixtures include a mechanical actuator configured to direct movement of a light mount along an arcuate path defined by arcuate bearing surface(s). Some embodiments of the present fixtures include a rotatable portion coupled to a stationary portion at an interface that is at least partially defined by smooth surface(s). Some embodiments of the present mounts include a base having a sidewall that defines an outer perimeter and mounting tab(s), each movable between a deployed state and a retracted state in which at least a portion of the mounting tab is disposed within the outer perimeter. Some embodiments of the present removable shroud assemblies include a lens coupled to a second end of a shroud and movable from a first position to a second position in which a portion of the lens is not in contact with the second end of the shroud.