The invention provides a luminaire (100) comprising an array (102) of light exit windows (104, 104′, 104″, 204, 304′, 304″, 404′, 404″, 604, 804′, 804″, 804′″, 904′, 904″, 1004, 1004′, 1004″), wherein each light exit window comprises a material adjustable between at least a first state having a first translucence and a second state having a second translucence and an electrode arrangement (112) for adjusting said translucence of the material. Such a luminaire (100) can provide differing lighting effects whilst providing illumination and, additionally, differing aesthetic effects when viewed under ambient lighting. There is also provided a method of configuring the luminaire (1100), a computer program product for implementing the method (1200), a computing device including the computer program product (1300) and a lighting system comprising the luminaire (100).

A desktop USB-charger related product has space to receive an AC power-wire, USB-charger wire, or another charging related wire(s). The USB-charger related product is arranged to be installed on a desk top at a hand-reachable distance from a user by attachment so that there is no need for the user to bend body or knee in order to charge a device using the charger. The USB-charger related product has at least one USB-port that can supply a desired output-current in the range of from 1.0 A to 12 A and 3.5 VDC to 8.5 VDC by converting input AC power ranging from 110 VAC to 250 VAC. The USB-charger product may also optional to incorporate at least one additional device such as an AC outlet, sensor, motion sensor, remote control, time display, LEDs, other lights, a power fail device, a smell device, an audio device, a video device.

Lighting unit that can be mounted to a vehicle for illuminating work or emergency areas at night. The lighting unit includes a mechanically controllable driver for selecting a position of a central optical axis of the light emitter and an electronically adjustable refractive element for modulating a beam spread configuration generated by the lighting unit.

A light source is provided with a digitally addressable lampshade that includes a plurality of regions of controllable opacity. Systems and methods are described for controlling the digital lampshade. In an exemplary embodiment, an addressable lampshade effects a time-varying pattern of changes to the opacity of the regions to generate a lamp identification pattern. A lamp is identified from the patterns by a camera-equipped mobile device. The mobile device then causes the identified lamp to generate a position-determining pattern of light. The mobile device determines its own position relative to the lamp based on the pattern of light received by the camera. The mobile device then instructs the digital lampshade, according to user input, to allow illumination or to provide shade at the determined position of the mobile device.

A light emitting device includes a plurality of light emitting elements emitting lights and a light controller. The light controller is disposed on the light emitting elements for the lights passing through to form output lights, which is switchable in a first state and a second state. In the first state, a first intensity the output lights is measured at a viewing angle of 0°, a second intensity of the output lights is measured at a viewing angle of θ.sub.2 and an azimuth angle of Φ.sub.2, and a ratio of the second intensity to the first intensity is less than or equal to 0.1, wherein θ.sub.2 ranges from 35° to 55°, and Φ.sub.2 ranges from 0° to 28° or from 152° to 180°.

A ceiling lamp includes a main unit and a wall plate detachably mounted on a top of the main unit. The main unit is provided with a membrane button for regulating a color temperature of the ceiling lamp. The membrane button is arranged on a bottom face or an outer face of the main unit. The main unit includes a lamp body, and a lamp disk mounted on the lamp body from bottom to top. The lamp body includes a rear cover, a heatsink disk, a light emitting diode (LED) driver, an LED module, and a light output module. The heatsink disk is mounted on a bottom of the rear cover. The LED module is mounted between the heatsink disk and the light output module. The LED driver is connected with the LED module.

The present disclosure is directed to an illumination device for providing a divergent illumination. The illumination device comprises a light source for emitting light in a visible spectrum; an output aperture, through which the light emitted from the light source exits the illumination device; and a layer structure. The layer structure comprises a scattering layer of a plurality of nanoscale scattering elements embedded in a host material and is positioned in an optical path of the emitted light that extends between the light source and the output aperture. The layer structure comprises further a pair of areal electrical contact layers, wherein the areal electrical contact layers extend at opposite sides of the scattering layer and are electrically connectable with a power source to generate an electric field across the scattering layer. The divergent illumination provided by the illumination device is characterized by at least one luminous intensity distribution curve having the full width at half maximum of at least 10°.

A lamp includes a variable transmissive film and a light source arranged to transmit light through the variable transmissive film. The variable transmissive film includes an encapsulated dispersion containing a plurality of electrically charged particles and a fluid, the charged particles being movable by application of an electric field and capable of being switched between an open state and a diffusing state. In some embodiments, one portion of the variable transmission film is in the open state and one portion is in the closed state, thereby allowing light from the source to be shaped, e.g., into task lighting.

The present invention relates to an illuminating knitted hat comprising a hat body and an illuminating structure, wherein the illuminating structure comprises a light-condensing component, a light-scattering component and a main control circuit board, wherein a switching button is connected to a surface of the main control circuit board, and a charging interface is connected to the main control circuit board; by applying a pressing force to the switching button, the main control circuit board and lampwicks or a light panel are powered on to form a loop, so that the lampwicks are powered on to emit condensed light or the light panel is powered on to emit scattered light, thereby achieving the effect of illuminating, achieving the function of a condensing light by a downlight or illuminating by scattering light, increasing the illuminating range or scope.

Provided is a light source module including a package body having a groove portion, a semiconductor light emitting diode (LED) chip provided on a bottom surface of the groove portion, the semiconductor LED chip being configured to emit light based on a first driving voltage applied thereto, a variable light transmission unit provided on the groove portion and having light transmissivity varying based on a second driving voltage applied thereto, a first electrode side surface and a second electrode side surface provided on side surfaces of the groove portion and connecting the bottom surface of the groove portion to the variable light transmission unit, and a processor configured to control application of the first driving voltage to the semiconductor LED chip and the second driving voltage to the variable light transmission unit.