The invention provides a light generating device (1000) comprising (i) a plurality of n light sources (100), and (ii) an optical component (1200) comprising an array (200) of prismatic elements (300), wherein: (a) the plurality of n light sources (100) comprise a first subset of one or more first light sources (110) configured to generate collimated first light source light (111) and a second subset of one or more second light sources (120) configured to generate collimated second light source light (121), wherein n>2; (b) the array (200) of prismatic elements (300) is configured in a light receiving relationship with the n light sources (100), wherein the array of prismatic elements (300) comprises k 1 parallel arranged first prismatic faces (201) and k2 parallel arranged second prismatic faces (202), wherein k1>2 and wherein k2>2, wherein the first prismatic faces (201) and the second prismatic faces (202) are not mutually parallel; (c) the first light sources (110) are configured to irradiate the first prismatic faces (201) and the second light sources (120) are configured to irradiate the second prismatic faces (202); and (d) the prismatic elements (300) are configured to reflect or refract the collimated first light source light (111) and the collimated second light source light (121) as coincident beams of first light source light (111) and second light source light (121).

A lens component radiates light from a light source. The lens component includes a light guiding radiation portion. The light guiding radiation portion includes a light incidence portion having an incidence surface on which the light from the light source is made incident, and a plurality of radiation mechanisms that respectively radiate to a plurality of radiation angle ranges. The incidence surface includes a close side incidence region and a distant side incidence region. The radiation angle ranges include a close side radiation angle range and a distant side radiation angle range. The light incident on the close side incidence region is radiated to the distant side radiation angle range via a corresponding distant side radiation mechanism. The light incident on the distant side incidence region is radiated to the close side radiation angle range via a corresponding close side radiation mechanism.

A combination axial fan and LED lighting system configured to fit into the footprint of a standard ceiling tile. The system includes a housing container and an axial fan. The fan has a fan cavity including air diversion mechanism to direct air from the fan cavity toward the lighting and fan components. The invention includes an airflow surface to direct air existing the fan cavity along an LED light fixture.

The present invention discloses a natural light homogenization lighting device and method based on free-form surface and sawtooth grating, and the device can be used as lighting curtains, indoor shutters, window glasses and the like. The device includes a front surface and a rear surface in an array form, the first surface is a free-form surface array, the second surface is a sawtooth surface array, and the free-form surface array is used for collecting outdoor natural light, and transmitting to the sawtooth surface array through the intermediate medium made of the same material between the two surfaces; and the sawtooth surface array is used for deflecting the incident natural light to the indoor space after being refracted by an inclined surface. The present invention can efficiently collect the natural light incident into the window, disperse the light evenly to all directions indoors, homogenize the indoor lighting, and effectively protect the indoor privacy. The device is thin and easy to mass produce, environmentally friendly and pollution-free.

The present invention discloses a natural light homogenization lighting device and method based on free-form surface and sawtooth grating, and the device can be used as lighting curtains, indoor shutters, window glasses and the like. The device includes a front surface and a rear surface in an array form, the first surface is a free-form surface array, the second surface is a sawtooth surface array, and the free-form surface array is used for collecting outdoor natural light, and transmitting to the sawtooth surface array through the intermediate medium made of the same material between the two surfaces; and the sawtooth surface array is used for deflecting the incident natural light to the indoor space after being refracted by an inclined surface. The present invention can efficiently collect the natural light incident into the window, disperse the light evenly to all directions indoors, homogenize the indoor lighting, and effectively protect the indoor privacy. The device is thin and easy to mass produce, environmentally friendly and pollution-free.

A light control system includes a housing, a controllable power source, a light source, and a plurality of cube-shaped tunable prisms. The controllable power source supplies at least four variable voltages. The light source is operable to emit a light beam. The cube-shaped tunable prisms are arranged in a manner so there are no gaps between adjacent tunable prisms. Each tunable prism receives a portion of the emitted light beam, each has a tunable deflection angle that is variable in two dimensions, and each is configured to optically steer the emitted light beam in the two dimensions based on the tunable deflection angle. Each tunable prism is further coupled to receive the four variable voltages. Each tunable prism comprises a liquid that varies the tunable deflection angle in two dimensions in response to the four variable voltages supplied thereto, to thereby deflect the light beam.

A light control system includes a housing, a controllable power source, a light source, and a plurality of cube-shaped tunable prisms. The controllable power source supplies at least four variable voltages. The light source is operable to emit a light beam. The cube-shaped tunable prisms are arranged in a manner so there are no gaps between adjacent tunable prisms. Each tunable prism receives a portion of the emitted light beam, each has a tunable deflection angle that is variable in two dimensions, and each is configured to optically steer the emitted light beam in the two dimensions based on the tunable deflection angle. Each tunable prism is further coupled to receive the four variable voltages. Each tunable prism comprises a liquid that varies the tunable deflection angle in two dimensions in response to the four variable voltages supplied thereto, to thereby deflect the light beam.

A recessed lighting apparatus comprising a cap provided with an apex comprising a first opening, adapted to accommodate at least one lighting source, and a second opening, of greater dimensions than the first opening, adapted to emit the light flow emitted from the lighting source. Starting from the interior of the apparatus towards the exterior of the apparatus, the cap can comprise a first cap made of a transparent material acting as a catadioptric reflector and a second cap made of an opaque material which is separated from said first cap by a gap.

The application is directed to a device housing. The device housing includes a first light device, the first light device including a first electrical supply configured to provide an electrical signal to a first light emitting diode (LED), the first LED separated from a first surface of a diffuser film by a space, wherein the diffuser film includes a second surface, opposite the first surface, the second surface configured to contact a first light pipe.

A laser-excited-phosphor light-source system in which a phosphor plate remains stationary while a laser beam is made to scan across the phosphor plate. In some embodiments, the phosphor-plate assembly includes a plurality of areas each having a different phosphor substance that emits wavelength-converted light in response to excitation from the scanned laser beam and/or a diffusive material. In some embodiments, one or more rotating prisms and/or one or more rotating or oscillating or angularly displaced mirrors are used to deflect the input laser light on the way toward the phosphor plate and to deflect the wavelength-converted and/or diffused light in the opposite direction such that the output beam of wavelength-converted and/or diffused light remains stationary with respect to the phosphor plate as the input laser beam is moved across the surface of the phosphor-plate assembly.