Lighting fixture include an elongated support and at least one lighting element. The support operably attachable to a wall or a ceiling. The least one lighting element includes a lighting unit and a continuous surrounding member. The continuous surrounding member has an inner surface and an outer surface defining a first opening and a second opening. The elongated support extends through a first portion of the surrounding member spaced from the first opening and spaced from the second opening and extends through a second portion of the surrounding member spaced from the first opening and spaced from the second opening. The lighting unit is disposed in a cavity and spaced from the inner surface of the surrounding member to define a surrounding area between the lighting unit and the inner surface of the surrounding member.

A ceiling lamp includes a lamp housing comprising a mounting bracket, a mounting pedestal mounted on the mounting bracket, an insulating cover connected to the mounting pedestal, and a lampshade enclosing the mounting bracket. The ceiling lamp further includes a light source assembly mounted in the lamp housing, the light source assembly includes a PCB, a plurality of LED beads mounted on a bottom surface of the PCB, and a processing circuit integrated on the PCB. The processing circuit includes a power consumption module electrically coupled to a mains power supply, a rectifier module electrically coupled to the power consumption module, and a constant current module electrically coupled to the rectifier module. The power consumption module comprising a fusing resistor and a varistor.

A light fixture may include a light source and an optical element, such as a light transmissive waveguide and/or a diffuser, having a surface forming a light output surface of the light fixture. The optical element is located to receive light from the source and is configured to supply the light for illumination, via the output surface. In an example of the fixture having a waveguide, the source is coupled to supply light to at least one of the lateral surfaces of the waveguide. At least the output surface of the optical element has a three-dimensional compound curvature and a perimeter that includes two or more edges connected at vertices.

An illumination system for a medical technology therapy and/or diagnosis system is provided. The system includes a light source, an optical waveguide, and an optical element in the form of a diffuser element. The optical waveguide has a first end that is connectable or assignable to the light source and the diffuser element is arranged at a second end of the optical waveguide so that light from the optical waveguide is injected into the optical element. The optical element has a lateral surface covered by a reflector layer at least in a section thereof. The reflector layer includes a mirror layer. The optical element has a light-reflecting area covered by the reflector layer and a light-transmissive area that is free of the reflector layer. Thus, light injected into the optical element is reflected on the light-reflecting area and emitted from the light-transmissive area.

Lighting fixture include an elongated support and at least one lighting element. The support operably attachable to a wall or a ceiling. The least one lighting element includes a lighting unit and a continuous surrounding member. The continuous surrounding member has an inner surface and an outer surface defining a first opening and a second opening. The elongated support extends through a first portion of the surrounding member spaced from the first opening and spaced from the second opening and extends through a second portion of the surrounding member spaced from the first opening and spaced from the second opening. The lighting unit is disposed in a cavity and spaced from the inner surface of the surrounding member to define a surrounding area between the lighting unit and the inner surface of the surrounding member.

An optical cup which mixes multiple channels of light to form a blended output, the device having discreet zones or channels including a plurality of reflective cavities each having a remote light converting appliance covering a cluster of LEDs providing a channel of light which is reflected upward. The predetermined blends of luminescence materials provide a predetermined range of illumination wavelengths in the output. The remote light converting appliances may be provided as frustoconical elements within frustoconical reflective cavities with a void between the light converting appliances and the associated LEDs.

A light fixture example includes a housing, a light source in the housing and a diffuser. The diffuser is supported by the housing at a distance from the source so as to receive light from the source and diffuse the light for illumination. The diffuser has a three-dimensional compound curvature and a perimeter with at least two edges connected at vertices. Each such edge is a two-dimensional plane curve. The at least two edges are not coplanar with each other. In some examples, a back panel of the housing may have a similar three-dimensional compound curvature and perimeter.

A lamp tube is provided for lamps, such as lamps including light sources including light emitting diodes (LEDs), in which the exterior surface of the lamp tube's glass sidewall has been abrasively treated to increase the exterior surfaces roughness, which increases the light diffusivity of the glass lamp tube. In one embodiment, the lamp tube provided herein includes a glass tube body having a perimeter defined by a sidewall of the glass tube body for enclosing a hollow interior, in which the exterior surface of the sidewall is textured to increase light diffusivity. The interior surface of the sidewall of the glass tube body is not textured.

A lamp is provided that includes a glass tube body composed of a glass composition that includes an optical diffusive agent to increase the light diffusivity of the glass tube body. The lamp can include a glass tube body having a perimeter defined by a sidewall of the glass tube body for enclosing a hollow interior. The glass tube body is composed of a sodium silicate glass including an optically diffusive agent that is alloyed with a silicate base glass composition. The optically diffusive agent can be selected from lithium borosilicate, titanium dioxide, antimony trioxide or combinations thereof. The lamp can further include at least one light emitting diode (LED) on a substrate that provides the light source. The at least one light emitting diode (LED) that is present on the substrate is positioned within the hollow interior of the glass tube body.

An LED light bulb includes a stand, a plurality of LED light sources supported by the stand and arranged along edges of at least two geometric shapes, and an envelope enclosing the stand and the plurality LED light sources. A method of assembling an LED light bulb includes arranging a plurality of LED light sources along edges of at least two geometric shapes, supporting the arrangement of LED light sources on a stand, and enclosing the plurality of LED light sources and the stand within an envelope.