A lighting apparatus including a base is provided. The base includes a through-hole. The through-hole is aligned with an optical path of laser light for receiving and transmitting the laser light. A light emitter which, when irradiated with the laser light transmitted through the through-hole, radiates light by converting a wavelength of the laser light. An attachment component is provided on the base for attachment of the light emitter to the base. The light emitter is removable from the base. A light blocker opens the optical path of the laser light by being contacted by the light emitter when the light emitter is attached to the base, and blocks the optical path of the laser light when the light emitter is removed from the base.

An overhead light shield is disclosed including a first and a second optically transparent film being partially circle. The first and second optically transparent film includes a notch. The first and second optically transparent films have an upper film side and a lower film side wherein the lower film side has an adhesive layer. The first and second optically transparent films include a plurality of film tabs extending outwardly from the optically transparent circumferential edges. The optically transparent films are protected by a first and a second peel-away film that is removably affixed. The peel-away films contain tabs extending outwardly from the first peel-away film circumferential edges. The optically transparent film tabs and the peel-away film tabs define grasping tabs for positioning the optically transparent film to the surgical room light. The optically transparent film adhesive layers couple the optically transparent films to the surgical room light.

An apparatus for retrofitting a HID lighting system includes using existing components of previously installed HID lighting systems such as its ballasts while replacing some capacitors to adjust the power supplied to a retrofit LED luminaire. Unused ballast drivers are removed, and a self-contained ballast driver assembly is mounted into the electronic control enclosure of the previously installed lighting system. Some of the retrofit LED luminaires include an uplighting lens, an optic, or a diffuser for providing uplight. An aiming bracket and an aiming plate allow for the horizontal aiming angle of a light luminaire to be set.

An apparatus for retrofitting a HID lighting system includes using existing components of previously installed HID lighting systems such as its ballasts while replacing some capacitors to adjust the power supplied to a retrofit LED luminaire. Unused ballast drivers are removed, and a self-contained ballast driver assembly is mounted into the electronic control enclosure of the previously installed lighting system. Some of the retrofit LED luminaires include an uplighting lens, an optic, or a diffuser for providing uplight. An aiming bracket and an aiming plate allow for the horizontal aiming angle of a light luminaire to be set.

A light source module is provided. The light source module includes a lead frame, a light source, a cup part, and a reflector. The light source is disposed on the lead frame, wherein the light source provides a light. The cup part is disposed on the lead frame, wherein the cup part includes an opening, a plurality of thick-wall portions and a plurality of thin-wall portions. The thick-wall portions and the thin-wall portions surround the light source and define a space. The reflector covers the opening. At least a portion of the light is reflected by the reflector, and is emitted through the thick-wall portions and the thin-wall portions.

Various embodiments described herein are directed to luminaire components that prevent flame transmission from the inside of a luminaire to the outside of a luminaire. In certain aspects, the luminaire can be used in an environment containing flammable gas, for example, in specialized lab work or testing applications. This application discusses components that can be used to prevent flame transmission from the inside of a luminaire to the outside of a luminaire, thereby yielding a flame encapsulating luminaire. Accordingly, the components and assemblies described herein can be safely integrated with systems that operate in the presence flammable gas.

Various embodiments described herein are directed to luminaire components that prevent flame transmission from the inside of a luminaire to the outside of a luminaire. In certain aspects, the luminaire can be used in an environment containing flammable gas, for example, in specialized lab work or testing applications. This application discusses components that can be used to prevent flame transmission from the inside of a luminaire to the outside of a luminaire, thereby yielding a flame encapsulating luminaire. Accordingly, the components and assemblies described herein can be safely integrated with systems that operate in the presence flammable gas.

An example electric lighting system includes a lighting device that includes a housing including a lighting element and a power device holding portion. The power device holding portion includes a cavity. The cavity includes a first and a second electrical contact disposed within the cavity. The power device includes a third and a fourth electrical contact. The power device includes a coupling component. The coupling component is removably couplable to the power device holding portion such that an electrical communication is established when the power device is inserted into the cavity at any rotational position relative to the lighting device about a shared central axis. The power device is operable to power the lighting device through the electrical communication. The electrical communication is established between the first electrical contact and the third electrical contact and between the second electrical contact and the fourth electrical contact.

The invention provides a longitudinally gripping light device, an adjustable focus pistol type spotlight and a swivel hook pistol light, wherein the longitudinally gripping light device includes a light element including a light housing, a lamp source and one or more auxiliary lamp sources, wherein the lamp source and the auxiliary lamp sources are assembled on different sides of the light housing; and a gripping handle extended in a longitudinal direction for a user to grip, and the light element is movably mounted on the gripping handle in such a manner that it is adjustable to switch one of the lamp source and the auxiliary lamp sources to the desired lighting direction.