An optical device includes a light source with at least two radiation sources, and at least two layers of wavelength-modifying materials excited by the radiation sources that emit radiation in at least two predetermined wavelengths. Embodiments include a first plurality of n radiation sources configured to emit radiation at a first wavelength. The first plurality of radiation sources are in proximity to a second plurality of m of radiation sources configured to emit radiation at a second wavelength, the second wavelength being shorter than the first wavelength. The ratio between m and n is predetermined. The disclosed optical device also comprises at least two wavelength converting layers such that a first wavelength converting layer is configured to absorb a portion of radiation emitted by the second radiation sources, and a second wavelength converting layer configured to absorb a portion of radiation emitted by the second radiation sources.

The lighting device disclosed in the embodiment includes a substrate, a light emitting device disposed on a lower surface of the substrate, a reflective layer disposed to face a light emitting surface of the light emitting device, a first resin layer disposed between the substrate and the reflective layer, and a light-transmission control layer disposed on an upper surface of the substrate, wherein the light-transmission control layer may include a liquid crystal layer including a cholesteric liquid crystal, and light emitted through the light emitting surface of the light emitting device may be reflected by the reflective layer and be provided to the light-transmission control layer through the substrate.

An automotive lighting control system is provided. A light-emitting diode (LED) system of an at least partially autonomous vehicle can include a first group of LEDs including cyan and amber LEDs, a second group of LEDs including cyan and at least one of red or amber LEDs, a third group of LEDs including cyan LEDs, and a controller configured to receive a first control signal indicating whether the at least partially autonomous vehicle is in autonomous drive mode or manual drive mode and cause the cyan LEDs of the first, second, and third groups LEDs to provide perceived cyan light when and only when the autonomous vehicle is in the autonomous drive mode.

An automotive lighting control system is provided. A light-emitting diode (LED) system of an at least partially autonomous vehicle can include a first group of LEDs including cyan and amber LEDs, a second group of LEDs including cyan and at least one of red or amber LEDs, a third group of LEDs including cyan LEDs, and a controller configured to receive a first control signal indicating whether the at least partially autonomous vehicle is in autonomous drive mode or manual drive mode and cause the cyan LEDs of the first, second, and third groups LEDs to provide perceived cyan light when and only when the autonomous vehicle is in the autonomous drive mode.

A LED module mount, kit and method for mounting LED modules into lighting apparatuses, in particular for retrofit applications for retrofitting lighting apparatus frames with LED modules. Two module connectors connect to an LED module at opposite sides of the LED module so as to be in a parallel arrangement spaced apart by the LED module. Additional LED modules can be added to form a row of LED modules between the module connectors, with further rows of LED modules being added by adding a third and sequential modular connectors to stack rows of LED modules separated by a modular connector. One or more arms attaches to the modular connectors to connect the connectors to a light fixture. The arms are configured to be rotationally adjusted relative to the modular connectors to provide adjustability for accommodating varying light fixtures. The modular connectors and arms are configured to be adjusted in size, preferably by cutting the modular connectors and arms.

A presence or an absence of an occupant is detected, and an occupancy sensor signal is generated representative of an active state in which the presence of the occupant is detected, and an inactive state in which the absence of the occupant is detected. An ambient light sensor detects the ambient light level and generates an ambient light sensor signal representative of the ambient light level. Dimmable illumination is generated at a first dimming level, based on the ambient light level, corresponding to the active state and a second dimming level corresponding to the inactive state. A transition delay time between an onset of the inactive state and a transition between the first dimming level and the second dimming level may be controlled. The first dimming level, the second dimming level, and/or the transition delay time may be variably set or controlled locally or via a remote device.

A presence or an absence of an occupant is detected, and an occupancy sensor signal is generated representative of an active state in which the presence of the occupant is detected, and an inactive state in which the absence of the occupant is detected. An ambient light sensor detects the ambient light level and generates an ambient light sensor signal representative of the ambient light level. Dimmable illumination is generated at a first dimming level, based on the ambient light level, corresponding to the active state and a second dimming level corresponding to the inactive state. A transition delay time between an onset of the inactive state and a transition between the first dimming level and the second dimming level may be controlled. The first dimming level, the second dimming level, and/or the transition delay time may be variably set or controlled locally or via a remote device.

Systems and methods for a high output, high color quality light are disclosed. In some embodiments, such a light may include a light fixture including one or more LEDs configured to output a cumulative light output; wherein the cumulative light output comprises an intensity of greater than or equal to 10,000 lumens; and wherein the cumulative light output comprises a CRI of at least 90.

Systems and methods for a high output, high color quality light are disclosed. In some embodiments, such a light may include a light fixture including one or more LEDs configured to output a cumulative light output; wherein the cumulative light output comprises an intensity of greater than or equal to 10,000 lumens; and wherein the cumulative light output comprises a CRI of at least 90.

Embodiments disclosed herein include to interconnectable circuit boards that can be constructed into three-dimensional shapes for use as lighting sources. An interconnectable circuit board array is included having a plurality of circuit board assemblies. The circuit board assemblies can include a first longitudinal edge, and a second longitudinal edge, and a plurality of bendable lateral board to board connectors. The plurality of bendable lateral board to board connectors are configured to provide electrical communication between a first circuit board from amongst the plurality of circuit board assemblies and a second circuit board from amongst the plurality of circuit board assemblies. Longitudinal edges of the first circuit board and of the second circuit board define a gap between the first circuit board and the second circuit board. The gap being bridged by at least one of the lateral board to board connectors. Other embodiments are also included herein.