The present disclosure is directed to projection devices that can project patterned light of different colors. In one implementation, the projection device can include a housing, within which reside multiple components. These components can include light emitting diodes (LEDs), a parabolic mirror reflector, a sinusoidal lenticular diffuser, and multiple spatial filters. The multiple LEDs can be provided in at least two distinct colors. The parabolic mirror reflector can be arranged to collimate light received from the multiple LEDs. The sinusoidal lenticular diffuser can be positioned at an output of the parabolic mirror reflector and arranged to diffuse the collimated light. The spatial filters can be arranged to diffuse the diffused and collimated light received from the sinusoidal lenticular diffuser. An imaging lens can be coupled to the housing and arranged to magnify the diffused light received from the spatial filters and display a cloud-like effect on a first surface.

An LED filament lighting device comprising, at least one LED filament, each including a plurality of LEDs mounted on an elongated substrate, at least one light scattering element, each including a light scattering shell surrounding a transparent volume, each light scattering element being arranged to encompass at least one LED of at least one LED filament, and configured to scatter light emitted from the encompassed LED(s), thereby forming a first LED set including at least one LED encompassed by said at least one scattering element, and a second LED set including a plurality of LEDs not encompassed by said at least one scattering element, wherein a light distribution from said first LED set combines with a light distribution from said second LED set to provide an improved total light distribution from said LED filament lighting device.

The present disclosure is applicable to a display apparatus-related technology field, and relates to, for example, a rotating display apparatus using a light emitting diode (LED). According to the present disclosure, a rotating display apparatus comprises: a stationary part including a motor; a rotary part located on the stationary part and rotated by the motor; a first light source module which includes at least one bar-shaped panel coupled to the rotary part and radially arranged, and a first light emitting device array arranged in the longitudinal direction on each panel; and a second light source module including a center panel located on the inner side of the first light source module, and a second light emitting device array arranged on the center panel, wherein the arrangement direction of the first light emitting device array can be different from the arrangement direction of the second light emitting device array.

A multi-spectral flashlight includes a housing, a battery disposed in the housing, a power switch, a LED module including a plurality of LEDs which emit different colors of illumination, a LED driver coupled to the LED module, and an alternate illumination selector switch coupled to the LED driver. The LED driver is configured to drive the LED module in a default illumination mode in response to a first user operation of the power switch and a selected alternate illumination mode in response to a second user operation of the power switch. The LED driver is further configured with a plurality of selectable pre-determined alternate illumination modes which include different colors of illumination. The LED driver advances through the plurality of selectable pre-determined alternate illumination modes in response to operation of the alternate illumination selector switch, allowing selection of one of the plurality of modes as the selected alternate illumination mode.

A decorative lighting system including a sensor device; a wiring harness comprising an insulated conductor and a plurality of lighting elements; a controller in communication with the wiring harness and the sensor device, the controller comprising a processor, a memory, and a wireless communication module; and wherein the controller is configured to control the plurality of lighting elements based at least in part on information received from the sensor device.

What is described as a multilayer body which can be illuminated by means of edge lighting and optionally also by backlighting, and which has a stone look. As well as the stone layer, layers of thermoplastic material are provided, with a translucent dark-colored layer provided on the reverse side with respect to the stone layer. The structure is a pleasing design element with day/night design not just in the configuration of building interiors and facades, but can also be used in a versatile manner in the automotive sector.

A light fixture, e.g., as an artificial skylight, in which light within a region defined by x, y color coordinates (0.37, 0.34), (0.35, 0.38), (0.15, 0.20), and (0.20, 0.14) exits a first light engine, and light within a region defined by coordinates (0.29, 0.32), (0.32, 0.29), (0.41, 0.36), (0.48, 0.39), (0.48, 0.43), (0.40, 0.41), and (0.35, 0.38) exits a second light engine. Also, light fixtures in which a second light engine comprises a sidewall, and light exiting a first light engine passes through space defined by the sidewall; light fixtures in which first and second light engines are able to output light providing different CS values at a luminance; light fixtures in which light incident on a surface of the fixture and cumulative light exiting the fixture have different color points; light fixtures in which light distribution characteristics of light engines differ; and/or other features. The invention also relates to corresponding methods.

A lighting apparatus a first group of at least one first solid state emitter, each first solid state emitter including a first light emitting diode (“LED”) that, when excited, emits light having a peak wavelength in a range between about 440 nm and about 475 nm, and a second group of at least one second solid state emitter, each second solid state emitter comprising a second LED that, when excited, emits light having a peak wavelength in a range between about 390 nm and about 415 nm. Between about 2% and about 15% of a spectral power of light emitted from the lighting apparatus is light having wavelengths in the range between about 390 nm and about 415 nm.

A night light projector comprises a housing and a light emitter accommodated in the housing. The projector further comprises a rotator rotatable around the light emitter and a plastic film dome placed on the rotator and rotatable with the rotator. The plastic film dome covers the light emitter and allows partly transmitting and projecting the light from the light emitter. By means of the rotatable plastic film dome, the projector is able to project rotating spatial pattern into surrounding space.

A light emitting diode (LED) module that is configured to emit white light is provided. The LED module includes: a blue light emitting diode configured to emit blue light having a first peak wavelength of 420 nm to 465 nm; and a near-infrared wavelength conversion material that is configured to be excited by the blue light to emit additional light having a peak wavelength in a range of 740 nm to 900 nm, and further having a full width at half maximum (FWHM) of 120 nm or less. The near-infrared wavelength conversion material includes Ca(Al.sub.12-x-y,Ga.sub.y)O.sub.19:xCr.sup.3+ (0≤x≤1, 0≤y≤6).