Abstract: A wavelength converter includes a base having a first surface, a wavelength conversion part that has a second surface facing the first surface and converts first light that belongs to a second wavelength band into fluorescence that belongs to a second wavelength band different from the first wavelength band, junctions that join the wavelength conversion part and the base to each other, and an air layer located in a region that the first light enters and surrounded by the wavelength conversion part, the base, and the junctions. The first surface of the base has a first region curved in a direction, and the second surface of the wavelength conversion part has a second region facing the first region and curved in the same direction.

Abstract: The present disclosure is directed to examples of housing for a luminaire. In one example, the housing includes a bioplastic base formed to receive a light emitting diode and a driver and a lens coupled to the bioplastic base. The bioplastic base may include a bioplastic and is formed with a non-biodegradable or a biodegradable plastic.

Abstract: Illumination devices as include a frame intended to be worn by a user and one or more light sources (e.g., LEDs) positioned by the frame so as to be near a user's zygomatic bones and oriented to project light in a direction of the user's view when the illumination device is worn on the wearer's head. The frame may be shaped to be worn over the user's ears and behind the user's head, and may be made of one or more of plastic, metal and/or a metal alloy, carbon fiber, wood, cellulose acetate, natural horn and/or bone, leather, and an epoxy resin. An optional strap may be retractably attached to connect portions of the frame over the wearer's head. The LEDs may be included in respective panels swivelly mounted to booms of the frame and the panels may further include imaging devices, such as a camera, and/or a projector.

Abstract: A projection lamp and a lamp holder include a housing defining a projection port, a lampshade covered on the projection port of the housing, and a projection lamp assembly. Light is emitted from the projection port. The projection lamp assembly includes at least two light sources and a first corrugated sheet. Patterns are provided on the first corrugated sheet. The at least two light sources are configured to emit the light. The light passes through the first corrugated sheet and the lampshade to emit out. Projection brightness of the at least two light sources is great and the first corrugated sheet is replaceable. A projected image is replaced by replacing a pattern-changing gear in tan inserting groove. Light strips are arranged on an outer wall of the projection lamp to create a visual atmosphere effect.

Abstract: Disclosed herein are apparatuses for providing light, such as through lighting wiring apparatuses. Some apparatuses may include three wires extending along a similar direction, such as a first component wire, a second component wire, and a return wire. The three wires may have a first and second predominantly terminal section, and the first predominantly terminal section of the first component wire may be connected to the first predominantly terminal section of the second component wire near the first end of the apparatus. The second predominantly terminal sections of the three wires may be connected near the second end of the apparatus and a plurality of diodes may be connected to the first component wire and the second component wire at periodic distances.

Abstract: A system, apparatus, and method for thermal regulation in a tiered rack growth system. A contact heat exchange converter is provided to remove thermal energy of a light fixture for the tiered rack growth system. A contact thermal exchange cavity defined in the contact heat exchange converter is dimensioned to cooperatively receive an arcuate thermal sink of the light fixture. A circulation conduit communicates a dense medium coolant to remove thermal energy carried by a thermal mass of the contact heat exchange converter.

Abstract: A light head for a medical device support system. The light head includes a housing base, an annular shape first lens, a housing cover, and a motion transfer member. The housing cover includes a cavity within which the annular shape first lens is rotatable about a rotation axis. The housing cover includes a second lens. The annular shape first lens and the second lens are in a light emitting path of the plurality of light emitting elements. The motion transfer member is configured to movably interact with a boss of the annular shape first lens to rotate the annular shape first lens about the rotation axis and within the cavity. A periphery of the annular shape first lens includes guide members configured to position the boss of the annular shape first lens to movably interact with the motion transfer member.

Abstract: The present disclosure is directed to systems and methods for providing an electrically operated fireplace that includes a one or more display panels, one or more reflective surfaces inclined at an angle with respect to the one or more display panels to reflect the video images of a flame displayed by the one or more display panels. One or more filters or privacy screens are disposed proximate the one or more display panels. Beneficially, the electrically operated fireplaces disclosed herein do not require the use of moving parts, such as a rotating mirror, to provide the images of the flames. Further, since video images are used to provide the flame effect, the flame effect may be varied simply by loading a new video image into the memory portion of the control circuitry used to provide the flame display.

Abstract: A microwave oven including a cooking cavity that is enveloped by a cooking cavity wall; a cooking appliance light; an opening in the cooking cavity wall which supports the cooking appliance light; a shielding sleeve arranged in the opening and configured to prevent an exit of microwaves through the opening out of the cooking cavity, wherein the cooking appliance light includes a LED illuminant and a light conductor rod which conducts light emitted by the LED illuminant into the cooking cavity, wherein the cooking appliance light includes a mounting plate that includes a cut out in which the light conductor rod of the cooking appliance light is supported, wherein the mounting plate supports the shielding sleeve that envelops the light conductor rod, and wherein the mounting plate is arranged at the cooking cavity wall and covers the opening.

Abstract: In one embodiment, the disclosure provides an interior luminaire system for emulating natural daylight. The system may include an artificial sunlight system and an artificial skylight system. The artificial sunlight system may include one or more first light sources and one or more first movable lenses paired with the first light sources, respectively. Each first light source may be configured to direct light only at the respective paired lens. Each first light source-lens pair may be operable to generate a set of substantially parallel rays of light. The artificial sunlight system may be operable to generate a movable substantially collimated beam of light comprising the sets of substantially parallel rays of light. The artificial skylight system may include one or more second light sources. Each second light source may be operable to generate omnidirectional rays of light. The artificial skylight system may be operable to generate diffuse illumination.

Abstract: Lighting devices having optical waveguides for controlled light distribution are provided. A lighting device includes a housing, a light emitter disposed in the housing, and a waveguide at least partially disposed in an opening of the housing. The waveguide includes a light input surface defining coupling features, wherein the light emitter is disposed adjacent the light input surface and emits light into the coupling features. The waveguide further includes a light transmission portion disposed between the light input surface and a light extraction portion, wherein light from the light emitter received at the light input surface propagates through the light transmission portion toward the light extraction portion. The waveguide further includes the light extraction portion, which comprises at least one light redirection feature and at least one light extraction feature that cooperate to generate a controlled light pattern exiting the lighting device.

Abstract: A light emitting device comprises a light emitting element having a light emission peak wavelength in a range of 400 nm or more and 490 nm or less and a first fluorescent material having a light emission peak wavelength in a range of 570 nm or more and 680 nm or less, and emits light having a correlated color temperature being 1,950 K or less, an average color rendering index Ra being 51 or more, a full width at half maximum of a light emission peak having a maximum light emission intensity in a light emission spectrum of the light emitting device being 110 nm or less, and a first glare index Ls1/L that is a ratio of a first effective radiance Ls1 to a luminance L being 0.493 or less, wherein Ls1 and L are as defined in the disclosure.

Abstract: A luminaire comprising: a chassis (100), the chassis (100) comprising: four walls joined to form a rectangular cavity, each wall of the four walls comprising: —a heat sink (107); —a wiring channel (111, 112); —a first receiving channel (114) on a first side of the heat sink (107); and—a second receiving channel (116) on a second side of the heat sink (107); a light emitting diode board (130) attached to a first wall of the four walls; a first extrusion (344) attached to a second wall of the four walls; a second extrusion (345) attached to a third wall of the four walls; wherein the light emitting diode board (130) comprises a first protrusion that fits into the first receiving channel and a second protrusion that fits into the second receiving channel; and wherein the light emitting diode board (130) rests on the heat sink (107) of the first wall when the first protrusion is fit into the first receiving channel and the second protrusion is fit into the second receiving channel.

Abstract: Sealed LED lighting fixtures operated under certain conditions (e.g., outdoors, in cold ambient environments, at high operating current, and/or in non-hermetic environments) will oftentimes exhibit condensation on an inner surface of the emitting face of the fixture. When occurring, said condensation impairs the ability to produce useful light—namely, light harnessed and directed in a manner so to provide lighting for a task (or otherwise desired)—by diffusing light emitted from the lighting fixture. Envisioned are apparatus, methods, and systems to reduce moisture in sealed LED lighting fixtures so to reduce or eliminate condensation, and in a manner that addresses both fixtures already in the field and those being assembled in a factory setting. In one form, a carrier embedded with desiccant is positionally mounted inside the fixture in a desired position which has no or minimal impact on light output from the fixture.

Abstract: The present disclosure is directed to examples of an apparatus. In one embodiment, the apparatus includes a light entry segment that receives light emitted from a light emitting diode (LED), a total internal reflection (TIR) segment to reflect the light towards an optical axis of the LED, and a light redirection segment comprising a plurality of light redirecting segments to redirect the light emitted from the light emitting diode and the light reflected by the TIR segment at an angle greater than 45 degrees relative to an optical axis of the LED.

Abstract: A light-emitting module includes: a semiconductor light-emitting element; a circuit board on which a lighting control circuit configured to perform control to turn on and off the semiconductor light-emitting element is provided; and an element metal plate on which the semiconductor light-emitting element is mounted. The circuit board is a resin substrate in which a wiring portion connecting the semiconductor light-emitting element and the lighting control circuit is provided.

Abstract: A headlight device includes an optical unit to emit light and a support mechanism to support the optical unit. The optical unit includes supported pins as a first supported part and supported groove parts as a second supported part. The support mechanism includes support groove parts as a first support part that is provided on a first straight line in a predetermined first direction and contacts the supported pins and support pins as a second support part that is provided on a second straight line in a second direction orthogonal to the first direction and contacts the supported groove parts. The support mechanism supports the optical unit to be freely rotatable around the first straight line passing through the support groove parts and freely rotatable around the second straight line passing through the support pins.

Abstract: Provided is a lighting device capable of manipulating a wider range of parameters to reproduce various light sources. A light source unit 10 includes, for example, a liquid crystal panel and a backlight, and each pixel is a light source capable of adjusting innumerable hues and intensities capable of adjusting hue and intensity. A lenticular lens 20 includes an array of a plurality of lenticules, and is arranged such that a plurality of light sources capable of adjusting hue and intensity is associated with each lenticule. In addition, on the outer periphery of the cylindrical portion of each lenticule, a partition is formed to block emission light from the pixel below the adjacent lenticule, thereby preventing repetition.

Abstract: A light-emitting seat, comprising a chair frame, a furniture light-emitting assembly, and a skin layer. The furniture light-emitting assembly comprises a fixing part, a strip light, a light guide material layer, and a power supply assembly. The strip light is disposed on the fixing part, the light guide material layer covers the strip light, and the power supply assembly is electrically connected to the strip light. In addition, the fixing part of the furniture light-emitting assembly may cover the chair frame, and the skin layer covers the chair frame and the furniture light-emitting assembly; or, the fixing part may be disposed on the light guide material layer, and the light guide material layer covers the chair frame, the skin layer covers the chair frame and the furniture light-emitting assembly. And, at least an area of the skin layer covering the furniture light-emitting assembly is a light-transmitting material.

Abstract: A phosphor element includes: a phosphor part having an incident face for excitation light, an opposing face opposing the incident face, and a side face, the phosphor part converting at least a part of the excitation light incident onto the incident face into a fluorescence and emitting the fluorescence from the incident face; an integral low refractive index layer on the side face and opposing face of the phosphor part and having a refractive index lower than that of the phosphor part; and an integral reflection film covering a surface of the low refractive index layer. The area of the incident face of the phosphor part is larger than the area of the opposing face.