A lighting fixture includes a housing, a first light source, a light guide plate, and a second light source. The housing has an inner cavity and a mounting hole, the mounting hole communicates the inner cavity with an external environment of the housing, the light guide plate is installed in the mounting hole. A side of the light guide plate faces the inner cavity, the other side of the light guide plate faces an outside of the housing. The second light source projects second light to the light guide plate, the second light is capable of being projected to the outside of the housing through the light guide plate. The first light source projects first light, and is configured such that the first light is projected to the outside of the housing through the light guide plate, and the housing is a non-light-transmitting housing.

The described technology provides an electric heating apparatus with multiple heating lamps that can increase the heat emitted by a single heating apparatus, thereby allowing a minimal number of heating apparatus installations in the space where heating is needed, and can prevent fires by turning the power off immediately in the event of the heating apparatus falling off. According to the described technology, multiple heating lamps may be positioned within the reflector dish, and the heating lamps may have particular inclinations to allow a broader range of irradiation and increase efficiency in terms of installing, maintaining, and operating the electric heating apparatus; the heat of the reflector dish and the heating lamps themselves may be discharged by way of conduction at the upper portion of the reflector dish.

According to one aspect, a waveguide comprises a waveguide body having a coupling cavity defined by a coupling feature disposed within the waveguide body. A plug member comprises a first portion disposed in the coupling cavity and an outer surface substantially conforming to the coupling feature and a second portion extending from the first portion into the coupling cavity. The second portion includes a reflective surface adapted to direct light in the coupling cavity into the waveguide body.

A backlight illuminator system involving a molded body produces a light illustration atmosphere by combining, with the molded body, an irradiation spectrum of indirect light composed of backlight from a rear projection plate behind a molded body, and which shows the features of the molded body with the faint backlight and defines the contour of the molded body. This backlight illumination system for a molded body includes: the molded body having a forward face, an illumination element provided toward the rear side of the molded body and which illuminates a back face of the molded body; a light transmitting through-hole that is in a rearward irradiation direction of the illuminating body; and a rear projection plate disposed away from the back face/rear side and the illuminating element and which is larger than the outer form of the molded body. The light irradiated onto the rear projection plate from the illumination element defines the contour of the molded body as a backlight reflected from the rear projection plate and the front side of the molded body due to the backlight.

A LED lighting device includes LEDs operable to emit light when powered through an electrical path. The LED lighting device includes a housing and a communications module for wireless communication to and from the LED lighting device. An antenna for receives and transmits a wireless signal where the antenna comprises a slot in the housing. A power supply in the electrical path for providing power to the LEDs may be retained in the housing. The communications module may be retained in the housing with the power supply. The housing may form part of the LED lighting device structure such as a reflector surface.

A vertical farming layer structure comprising: an underlying support for supporting a plurality of farmed plants; a light-reflective upper surface positioned above and facing the underlying support, the light-reflective upper surface being adapted to reflect light by diffuse reflection; and a plurality of light-emitting devices positioned between the underlying support and the light-reflective upper surface, each light-emitting device being positioned to emit light along a respective optical axis oriented towards the light-reflective upper surface such that light emitted from the light-emitting device is at least partially diffusely reflected off of the light-reflective upper surface to reach the plants supported on the underlying support.

The current invention applying super slim LED-unit(s) has built-in contactors has (a) magnetic only or (b) conductive magnetic-movable-kits so can attach or detachable metal magnetic-field reactive buss-strips. The conductive-movable type which also can deliver electric current from buss-strips of track light. The super slim LED light or units is a DC powered LED light has optics design become super thin and none bright-spots. The said LED-units install under the light-block material housing or parts, and light-beam go through at least of reflective surface at inner surface or walls. The said LED-unit install on hard or bendable circuit board with divider the compartment only has LED, lit-lens, reflective housing. The compartment is only space where light-beam traveling and has multiple times reflected and emit out from top lens. The said light beam emit out from LED-unit(s) reflected by high reflective surface or wall including (1) white high-polished plastic or (2) metalized mirror-like or (3) shining metal piece back-and-forth and light emit out from top lens. The current invention has multiple time reflective and refractive optic theory to make the super thin light for SMD LED(s) on hard or bendable PCB to get in-direct light beam. To get none bright-sports by not install LED(s) under face top lens. The Track LED light or LED-unit has slim features with different size can use as ceiling, closet, kitchen, laundry, door, garage, patio or anywhere for building, residence, house for indoor or outdoor use.

Illumination devices are described for illuminating a target area, e.g., floors of a room, using solid-state light sources. In general, an illumination device includes a first light guide extending along a first plane, the first light guide to receive light from first light emitting elements (LEEs) and guide the light in a first direction in the first plane; a second light guide extending along the first plane, the second light guide to receive light from second LEEs and guide the light in a second direction in the first plane opposite to the first direction; a first redirecting optic to receive light from the first light guide and direct the light in first and second angular ranges; and a second redirecting optic to receive light from the second light guide and direct the light in third and fourth angular ranges, where the first, second, third and fourth angular ranges are different.

The invention provides a lighting panel, for use for example within a modular surface system, comprising one or more strips of solid state lighting elements associated with a reflector structure. The lighting panel is adapted for improved uniformity of light intensity across the width of its output area. Lighting elements comprise two or more subsets, each subset adapted to collectively generate a different light intensity profile across the width of the panel output window. The subsets are selectively adapted to generate profiles which, when blended, mutually offset one another's deviations from some common mean intensity across the width of the output window, thereby generating a combined intensity profile of improved uniformity. Embodiments include arrangements in which subsets of lighting elements are adapted to have differing actual or virtual optical path lengths to the reflector surface. Also provided are embodiments further comprising an acoustically absorbing back surface, for providing an acoustic dampening function.

A lighting device, which may be used e.g. to produce motor vehicle lamps, may include a light radiation source, e.g. a LED source, having a light-permeable body arranged facing source for propagating light radiation along a longitudinal axis. The light-permeable body includes a collimator exposed to light radiation source and adapted to collect light radiation and to inject it into light-permeable body, a tapered portion coupled to collimator for receiving light radiation and directing it towards an output end, a distal portion acting as an emission filament, coupled to the output end of tapered portion, with an output mirror having a shank portion extending in said distal portion and a head portion, the output mirror reflecting light radiation radially from longitudinal axis and proximally towards said light radiation source.