A luminescent replica comprising a replica of a bird of prey is described. The bird of prey can be an owl, falcon or hawk. The bird of prey can be a great horned owl. The luminescent replica can include a luminescent material on a surface of the replica. The luminescent replica can include a luminescent material on a surface representing a ventral area of the bird of prey. The luminescent material can emit light having a wavelength of from about 600 nm to about 750 nm, and optionally, from about 450 nm to about 500 nm. The luminescent material can absorb ultraviolet radiation having a wavelength of less than about 400 nm. The luminescent material may include a porphyrin or derivative of a porphyrin. A kit and method for making the luminescent replica are also described.

A device for indicating lock status of a motor vehicle door includes a door lock status indicator carried on a window of the motor vehicle door. A device for indicating a turn signal of a motor vehicle includes a turn signal indicator carried on a window of the motor vehicle. These devices may be combined into a single lighting module.

A keycap assembly can include a keycap that includes a chargeable light emissive material. The keycap assembly can include a light sensor configured to sense light emitted by or incident to the chargeable light emissive material. The keycap assembly can further include a microcontroller. In certain implementations, the microcontroller includes a processor and a memory device storing instructions that, when executed by the processor, cause the microcontroller to: receive an electrical signal from the light sensor; and determine a property of the chargeable light emissive material based on the electrical signal, where the property includes at least one of a charge level or an illumination intensity.

A light emitting plant can include a long duration emissive material.

A source of white light constructed of a vacuum glass chamber, containing an optically active element, a generator of an IR electromagnetic radiation beam equipped with a laser IR diode, a battery, a focusing lens, and, optionally, a reflector characterized in that the optically active element contained in the vacuum chamber is a thin layer graphene matrix with the thickness of up to 3 mm Embodiments also relate to a method of white light generation by the above-mentioned white light source.

A light absorbing and light emitting device, comprising a first structure supported by a holder. A first portion of the first structure (which can be flexible, sheet-like and/or at least partially opaque) comprises phosphorescent material and/or phase change material on a first side. The first structure is movable relative to the holder between a first position, in which the first side faces a first direction, and a second position, in which the first side faces a second direction. Also, a light admitting, light absorbing and light emitting assembly that comprises a light absorbing and light emitting device and a first light-transmitting structure. Also, a light absorbing and light emitting device that comprises a holder assembly and a plurality of first structures, with phosphorescent and/or phase change material, and each movable between first and second positions. Also, methods of absorbing light and emitting light with such structures.

A source of white light constructed of a vacuum glass chamber, containing an optically active element, a generator of an IR electromagnetic radiation beam equipped with a laser IR diode, a battery, a focusing lens, and, optionally, a reflector characterized in that the optically active element contained in the vacuum chamber is a thin layer graphene matrix with the thickness of up to 3 mm Embodiments also relate to a method of white light generation by the above-mentioned white light source.

A light absorbing and light emitting device, comprising a first structure supported by a holder. A first portion of the first structure (which can be flexible, sheet-like and/or at least partially opaque) comprises phosphorescent material and/or phase change material on a first side. The first structure is movable relative to the holder between a first position, in which the first side faces a first direction, and a second position, in which the first side faces a second direction. Also, a light admitting, light absorbing and light emitting assembly that comprises a light absorbing and light emitting device and a first light-transmitting structure. Also, a light absorbing and light emitting device that comprises a holder assembly and a plurality of first structures, with phosphorescent and/or phase change material, and each movable between first and second positions. Also, methods of absorbing light and emitting light with such structures.

A device for indicating lock status of a motor vehicle door includes a door lock status indicator carried on a window of the motor vehicle door. A device for indicating a turn signal of a motor vehicle includes a turn signal indicator carried on a window of the motor vehicle. These devices may be combined into a single lighting module.

A vehicle applique is provided that includes a decorative layer and an over-mold positioned over the decorative layer. The over-mold is substantially transparent. A light conversion layer is positioned on an opposite side of the decorative layer from the over-mold and configured to convert ambient illumination. A reflective layer is configured to convert ambient illumination. A reflective layer is configured to reflect light into the light conversion layer.