Optical systems including an optic holder with integrated light premixer are disclosed. In one embodiment, an optical system includes a lens holder adapted for holding at least one lens, said lens holder comprising a hollow waveguide extending from a proximal end adapted to receive light from a light source to a distal end, wherein said hollow waveguide comprises a reflective optical surface for reflecting at least a portion of the light received from the light source so as to direct the reflected light to said distal end of the waveguide. In some embodiments, the lens holder may be configured to receive a plurality of nested lenses optically coupled to said distal end of the waveguide.

The present disclosure provides a multi-directional light fixture having a single orientation light source. The multi-directional light fixture includes a light source orientated towards a semi-reflective lens. The semi-reflective lens allows a portion of the light it receives from the light source to be reflected upwards, providing uplight from the light fixture. The lens also allows a portion of the light it receives from the light source to be transmitted therethrough, providing downlight from the light fixture. Thus, the light fixture provides both uplight and downlight while the light source is oriented downwards.

The disclosed apparatus, systems and methods relate to a modular LED light, fixture body, junction box and sub assembly. The LED light has a unitary LED light component, a central housing and can be adapted to fit with existing sockets. Further additional twist and lock components are provided, including a twist and lock luminaire body. The LED light can be installed without tools, and can be easily replaced, and prevents the accumulation of water within the light.

The illuminated headset is a headphone that is adapted for listening to audio sources, which provide electrical signals, which are converted to audible sound by the speakers in the headphone. The headphone is enhanced with an illumination system. The illumination system comprises a plurality of LEDs and a phosphorescent material. The plurality of LEDs is used to illuminate the cable, the left speaker, and the right speaker. The phosphorescent material is used to form the headband, the left speaker housing, and the right speaker housing. The illuminated headset comprises a headset, a master cable, a jack, a clasp, a left cable, and a right cable.

An LED lamp A includes a plurality of LED modules 2 each including an LED chip 21, and a support member 1 including a support surface 1a on which the LED modules 2 are mounted. The LED modules 2 include a plurality of kinds of LED modules, or a first through a third LED modules 2A, 2B and 2C different from each other in directivity characteristics that represent light intensity distribution with respect to light emission directions. This arrangement ensures that the entire surrounding area can be illuminated with sufficient brightness.

An LED device includes a plurality of LED dies, a plurality of lens, a diffuser plate and a collimator lens. The collimator lens is positioned between the diffuser plate and the lens. The collimator lens includes a plurality of fresnel lenses. A focus of each fresnel lens is equal to a distance between a plane where the fresnel lens places and a light outputting surface of the LED die. Light emitted from the LED dies is adjusted to collimator light and striking perpendicularly into the diffuser plate.

A light-emitting diode (LED)-based solid-state lamp (LED lamp) comprising four input ports, two bridge rectifiers, two interface modules, an LED driving circuit, and LED arrays operates normally for an input voltage applied from any two of the input ports without operational uncertainty and a fire hazard. The LED driving circuit is configured to provide a regulated power and current to drive the LED arrays. With a cycle-by-cycle triac switching and current control, an over-rated surge current is limited, preventing any fire hazards possibly occurred in the ballast when operated with the LED lamp. With various electrical connection terminals, the lamp can fit and operate in various lamp fixtures comprising two-pin, four-pin, or Edison-base sockets.

A power over Ethernet (PoE) interface device includes a knockout adapter. The knockout adapter is configured for mounting to a conduit knockout opening in an LED luminaire. The interface device includes a power assembly having an input section and an output section. The power assembly is connected to the knockout adapter such that the output section is positioned inside the luminaire when the knockout adapter is mounted to the luminaire. The power assembly further includes a data connector mounted to the input section. The data connector is configured to receive PoE signals from a data cable coupled to the data connector. Power output terminals are mounted to the output section and electrically coupled to the data connector. The power output terminals may be configured to couple the PoE signals from the data connector to an LED light source in the luminaire.

The present application relates to a light emitting diode module comprising: a light source device (11), a cover (10) for said light source device (11), the cover (10) being arranged to connect to an optical device (21); wherein said cover (10) comprises a heat conducting part (24, 34) which has an at least one order of magnitude higher thermal conductivity than the remaining part of the cover (10) and which is arranged to thermally connect said light source device (11) with said optical device (21). The present application further relates to a corresponding cover for a light source device (11) in a light emitting diode module (1).

A light source arrangement is provided. The light source arrangement may include a plurality of semiconductor laser light sources arranged in such a way that the laser light emitted by the semiconductor laser light sources is aligned in parallel, and a deflection unit configured to collect and influence all beam paths of the laser light emitted by the semiconductor laser light sources so as to form a beam. The deflection unit has a first mirror element with a concavely curved surface, which is embodied to capture and reflect the laser light emitted by the semiconductor laser light sources by the surface. The light source arrangement may further include a second mirror element with a convexly curved surface, which is embodied to capture and focus the laser light reflected by the first mirror element.