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.

LEDs have been around since the 1960's, and candles have been use for many thousands of years. Until now there hasn't been an effective, safe and creative way of bringing the two together. This project utilizes both factors; it can be just a burning candle, an LED show or it can be a great smelling candle with a dazzling light show that customers are invited to help choreograph, and whose input is critical!

LEDs have been around since the 1960's, and candles have been use for many thousands of years. Until now there hasn't been an effective, safe and creative way of bringing the two together. This project utilizes both factors; it can be just a burning candle, an LED show or it can be a great smelling candle with a dazzling light show that customers are invited to help choreograph, and whose input is critical!

The Sun Sky/Electric Hybrid Lighting System (SEHLS) is the fully integrated sun lighting system that can be connected through out multiple rooms to bring natural sun stereophonic lighting into a home or office. SEHLS is a dual capable system that was designed for energy savings with both sun power and low energy lighting. The SEHLS system has four major lighting systems that fit any room's needs. Each unit has been designed with the same common usage and capability. In this Patent, the Sun Sky/Electric Reflective Lite System (SERLS) will be Patented as an example. The SERLS is a dual usage system that can be placed in medium-spaced room such as a bedroom, hallway or office to provide sun light luminance capability.

A composite transparent lighting device is described. The device has a transparent substrate, an uniform distribution of low concentration dielectric particles, reflective perimeter and perimetral discrete light sources, of improved appearance both in the inoperative state of the device, and at the same time capable of providing good quality lighting when the device is active, i.e. when the discrete light sources on the perimeter of the device are turned on.

A hybrid lighting system is disclosed in which light emitting diodes (LEDs) provide input light when illumination with solar light is unavailable. Light from LEDs are propagated through an optical fiber, which delivers the light to a point of illumination. The disclosed system reduces the amount of electricity and electric conduit for light in areas using hybrid lighting systems.

A lighting control system for optimizing operation of skylights of distributed sites to facilitate daylight harvesting comprises a processor and a memory communicatively coupled to the processor. The memory stores processor instructions, which causes the processor to identify skylight-linked lighting circuits from a plurality of lighting circuits by analyzing site configuration data, site instrumentation data, and ambient data, and determine interception points configured for each identified skylight-linked lighting circuit to switch from daylight utilization to electric consumption and to switch from electric consumption to daylight utilization. The processor is further caused to derive an optimum logic for the operation of skylight linked lighting circuits based on the interception points and current operating schedule of the skylight linked lighting circuits and optimize the operation of the skylights based on the optimum logic.

A lighting fixture appears as a skylight and is referred to as a skylight fixture. The skylight fixture has a sky-resembling assembly and a plurality of sun-resembling assemblies. The sky-resembling assembly has a sky-resembling optical assembly and a sky-specific light source, wherein light from the sky-specific light source exits a planar interior surface of the sky-resembling light optical assembly as skylight light. The plurality of sun-resembling assemblies are arranged adjacent one another and extend downward from a periphery of the sky-resembling assembly. Each of the plurality of sun-resembling assemblies has a sun-resembling optical assembly and a sun-specific light source, wherein light from the sun-specific light source exits a planar interior surface of the sun-resembling optical assembly as sunlight light.

A lighting fixture appears as a skylight and is referred to as a skylight fixture. First and second light engines of the fixture provide different color points, peak light intensity angles, far-field light distribution characteristics, and/or circadian stimulus values. A skylight fixture may include a sky-resembling assembly and a plurality of sun-resembling assemblies, with dedicated optical assemblies and/or light sources. A lighting fixture may include multiple waveguides that different extraction feature patterns and/or may be sequentially arranged.

A candle device with a solid candle wax and a permanent display is provided. In preferred embodiments the candle device is reusable. In other preferred embodiments the candle device contains an LED device capable of providing LED light to the candle device.