A lighting apparatus includes a fixing connector, a base holder, a light source and a light passing cover. The fixing connector includes an Edison socket and a fixing bracket. The base holder includes an Edison cap, a base wall and a base plate. The Edison cap is placed on a top side of the base plate. The base wall surrounds the Edison cap. The Edison cap is detachably inserted into the Edison socket of the fixing connector. The light source is disposed on a bottom side of the base plate. The top side and the bottom side of the base plate are opposite. The light passing cover is attached to the bottom side of the base plate for the light source to emit a light to pass through.

Consumable and replaceable light bulbs that emit white light to provide ambient lighting and also emit UV light for pathogen inactivation. The white light and the UV light may be emitted simultaneously or the light bulb can be controlled to emit the white light and the UV light at separate times. The UV light emitted by the light bulbs has a wavelength and output power that is safe for humans and pets and the UV light inactivates pathogens over relatively prolonged exposure periods. The light bulbs described herein can be used in place of conventional light bulbs, for example in a room of a home, office building or other human occupied space. Humans can remain in the space when the light bulb(s) is on without being harmed by the UV light.

The present invention relates to a lamp for removal of fine dust. Disclosed according to an embodiment of the present invention is a lamp for removal of fine dust, which provides an indoor lighting function by using an LED as a light source and provides a function of adsorbing and removing fine dust by using an anion generator, wherein the lamp is configured to prevent the blackening effect caused when fine dust adsorbed and coagulated by anions emitted from the anion generator is suspended and adsorbed to a ceiling or wall.

A color correcting optical component (CCOC) for reducing the correlated color temperature (CCT) of a light source emitting a first light, the CCOC comprising: (a) a light transmitting component, the light transmitting component being discrete from the light source; (b) a connector operatively attached to the light transmitting component for connecting the light transmitting component to the light source such that at least a portion of the first light passes through the light transmitting component; (c) a plurality of quantum dots (QDs) disposed in the light transmitting component, the QDs configured to downconvert a portion of the first light to a second light, wherein the light transmitting component emits emitted light comprising a combination of at least the first light and second light.

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.

An LED lamp, comprising a base; a lamp envelope coupled to the base; a support module accommodated in the lamp envelope, a first inner cavity being formed between the support module and the lamp envelope, the first inner cavity containing therein a first gas medium; a driver module accommodated in the first inner cavity and coupled to the support module; and an LED inner vessel accommodated in the first inner cavity and coupled to at least one of the support module and the driver module, a sealed second inner cavity being formed within the LED inner vessel, and the second inner cavity containing therein a second gas medium and an LED light source module.

An LED lamp, comprising a base; a lamp envelope coupled to the base; a support module accommodated in the lamp envelope, a first inner cavity being formed between the support module and the lamp envelope, the first inner cavity containing therein a first gas medium; a driver module accommodated in the first inner cavity and coupled to the support module; and an LED inner vessel accommodated in the first inner cavity and coupled to at least one of the support module and the driver module, a sealed second inner cavity being formed within the LED inner vessel, and the second inner cavity containing therein a second gas medium and an LED light source module.

An example embodiment of a backlit lamp comprises a housing, a forward facing directional light source and a rear facing directional light source. The housing may comprise a bowl portion comprising a first joining end and a forward emitting end; and a neck portion comprising a second joining end. The bowl and neck portions are joined at the first and second joining ends. The forward facing directional light source is mounted within the housing and configured to emit light in the direction of the forward emitting end. The rear facing directional light source is mounted within the housing and configured to emit light in an opposite direction from the light emitted by the forward facing directional light source. In an example embodiment, the forward facing and rear facing directional light source comprise light emitting diodes (LEDs).

An example embodiment of a backlit lamp comprises a housing, a forward facing directional light source and a rear facing directional light source. The housing may comprise a bowl portion comprising a first joining end and a forward emitting end; and a neck portion comprising a second joining end. The bowl and neck portions are joined at the first and second joining ends. The forward facing directional light source is mounted within the housing and configured to emit light in the direction of the forward emitting end. The rear facing directional light source is mounted within the housing and configured to emit light in an opposite direction from the light emitted by the forward facing directional light source. In an example embodiment, the forward facing and rear facing directional light source comprise light emitting diodes (LEDs).

The present disclosure relates to a light source (1) comprising a housing (3), a light source connector (5) at a first end (7) of the housing (3), for connecting the light source to a light fitting, and a light emitting diode, LED, circuit (9), configured to emit light through a second end (11) of the housing (3). The housing may be substantially symmetric about a symmetry axis (13) extending from the first to the second end of the housing (7), (11). The housing (3) has, at the first end (7), a first end portion (15), comprising a thread (19), made in an insulating material, and being configured to be connected to a light fitting. A light fitting comprising such a light source is also considered.