A light-emitting apparatus for an automobile sunroof with a changing display pattern is provided, comprising: a light-guiding layer, a light-emitting module, and a fixing batten; wherein a coating layer is provided on the first surface of the light-guiding layer, and the coating layer includes a first pattern and the second pattern, the second surface of the light-guiding layer includes a third pattern; the light-emitting module includes a plurality of first light-emitting elements, second light-emitting elements, third light-emitting elements, and limiting blocks; the first light-emitting element emits ultraviolet light to make the first pattern produce a fluorescent reaction; the second light-emitting element emits infrared light to make the second patterns produce a fluorescent reaction; the third light-emitting element emits primary color light to make the third pattern appear through reflection and refraction.

An apparatus for performing ultraviolet-deactivation of pathogens is disclosed. The disclosed apparatus includes a housing, a base member, one or more visible light assemblies, and one or more ultraviolet radiation assemblies. The housing is configured to define a downlight aperture region irradiated by the apparatus. The apparatus may additionally include sensors to detect whether a living organism occupies the downlight aperture region. The input from the sensors may be used to control the one or more ultraviolet radiation assemblies.

Described herein is an illumination device for projecting light in a predetermined illumination pattern on a surface. The illumination device includes a light module having a light source and a light pipe configured to transmit light in any suitable manner. The illumination device also includes a housing having a cavity, an entrance opening for receiving the light emitted from the light source, and an aperture at a second housing end. Within the housing between the entrance opening and the aperture is a screen at least partially disposed in the cavity, the screen having at least one opening defining a base pattern configuration corresponding to the predetermined illumination pattern. The light pipe is configured to selectively transmit light from the light source to the cavity and may be linear or non-linear such that the light source and the surface to be illuminated do not need to face one another.

An interior aircraft light includes a mounting structure for mounting the interior aircraft light to an aircraft seat; a UV radiation source; and an optical system, configured to direct UV radiation from the UV radiation source towards a floor portion underneath the aircraft seat.

An interior aircraft light includes a mounting structure for mounting the interior aircraft light to an aircraft seat; a UV radiation source; and an optical system, configured to direct UV radiation from the UV radiation source towards a floor portion underneath the aircraft seat.

A lighting device includes a light source irradiating excitation light and a vehicle glass emitting visible light through incident radiation of the excitation light, in which the vehicle glass emits the light synchronously in an area of 30% or more by irradiation with the excitation light.

A lighting device includes a light source irradiating excitation light and a vehicle glass emitting visible light through incident radiation of the excitation light, in which the vehicle glass emits the light synchronously in an area of 30% or more by irradiation with the excitation light.

A transparent roof assembly for a vehicle roof comprises a panel with a transparent area, a light source arranged to provide light into the panel and an out-coupling pattern arranged on the surface of the transparent area of the panel. The out-coupling pattern comprises dots of a light-redirecting material for out-coupling of light introduced into the panel and propagating in the panel, wherein the dots each have a representative diameter of 150 microns or less, preferably 80 microns or less and wherein a total dot surface area of the dots of the out-coupling pattern is smaller than 10% of a total surface area of the transparent area. Thus, the transparent area appears transparent during daytime looking from an interior of the vehicle to an exterior of the vehicle, while sufficient light is provided into the interior when the light source is switched on.

A sterilizable lamp assembly of a vehicle may include at least one sterilizing lamp mounted in an indoor of a vehicle and for irradiating sterilizable light of wavelength to the interior of the vehicle, wherein the sterilizing lamp is configured to emit light when a passenger does not get on the interior of the vehicle.

A sterilizable lamp assembly of a vehicle may include at least one sterilizing lamp mounted in an indoor of a vehicle and for irradiating sterilizable light of wavelength to the interior of the vehicle, wherein the sterilizing lamp is configured to emit light when a passenger does not get on the interior of the vehicle.