Embodiments described herein relate to a system for positioning indicator lights of a network device. The system may include a circuit board, which may include a circuit board edge positioned behind a front panel of the network device, two surfaces; and a side of the circuit board edge positioned between the two surfaces. The system may also include a hole through the circuit board near the circuit board edge, a cutout extending from a portion of the hole to the side of the circuit board edge, a LED coupled to the surface of the circuit board and adapted to emit light into the hole, and a lightpipe disposed in the hole to receive light emitted from the LED into a first end of the lightpipe. The lightpipe may direct the light from a second end of the lightpipe toward an opening in the front panel of the network device.

A method for providing light to an endoscope includes emitting light from a plurality of light emitting diodes, filtering the light with a plurality of dichroic filter elements, collimating and mixing light received from the dichroic filter elements into a combined light, sensing the combined light at a color sensor and determining a sensed color balance of the combined light, comparing the sensed color balance with a predetermined color balance, and varying at least one power signal to control a light intensity output by at least one of the plurality of light emitting diodes so that the sensed color balance corresponds to the predetermined color balance.

An IV-line identification system to enable ready identification of an IV line and its associated fluid source and output from other IV lines with their fluid sources and outputs. The IV-line identification system includes an optical member affixed along a longitudinal length of an elongated member that transmits light when a light source provides a light to the optical member.

An illumination device, including a fiber optic spiral wrapped around an electrical wire, a plug connected to the electrical wire on one end, and a fiber optic bundle connected to the fiber optic spiral and the electrical wire on an other end opposite the one end. The fiber optic bundle includes a bundle chamber attached to the electrical wire and the fiber optic spiral on a first end, and an illumination member at the wide end and attached to the electrical wire; and fiber optic strands extending from a second end opposite the first end.

A headset includes two earplug components each including an earphone shell defining an accommodating cavity and a control device in the accommodating cavity, a connecting member connecting two earphone shells, a first light emitting component includes a first light source in the accommodating cavity of at least one earphone shell and electrically connected with the control device and a light emitting tube, and a second light emitting components configured in the accommodating cavity and electrically connected with the control device. Each earphone shell is connected with both ends of the light emitting tube, an optical adjusting member is to transmit light from the first light source to the light emitting tube. A surface of one earphone shell away from the other earphone shell is defined with an emitting channel communicating with the accommodating cavity. Light from the second light emitting component is emitted through the emitting channel.

The application is directed to a device housing. The device housing includes a first light device, the first light device including a first electrical supply configured to provide an electrical signal to a first light emitting diode (LED), the first LED separated from a first surface of a diffuser film by a space, wherein the diffuser film includes a second surface, opposite the first surface, the second surface configured to contact a first light pipe.

A laser-based fiber-coupled wide-spectrum light system is provided. The system includes a laser device and one or more phosphor members configured and arranged to provide wide-spectrum emissions. One or more fibers are configured and arranged to receive the wide-spectrum emissions.

A light-emitting system includes an optical fiber, a first light source unit, a second light source unit, and a light-guiding member. The optical fiber includes a wavelength-converting portion containing a wavelength-converting element. The wavelength-converting element may be excited by excitation light to produce a spontaneous emission of light having a longer wavelength than the excitation light and may also be excited by an amplified spontaneous emission of light. The first light source unit makes the excitation light incident on the optical fiber. The second light source unit makes seed light, causing the wavelength-converting element that has been excited by either the excitation light or the amplified spontaneous emission of light to produce a stimulated emission of light, incident on the optical fiber. The light-guiding member guides the light coming from the optical fiber and lets the light emerge therefrom.

In a lighting system an optical fiber includes a light incident portion, a light emerging portion, and a wavelength-converting portion. The wavelength-converting portion is provided between the light incident portion and the light emerging portion. The wavelength-converting portion contains a wavelength-converting element which is excited by excitation light and amplifies a spontaneous emission of light, having a longer wavelength than the excitation light, with an amplified spontaneous emission of light. A first light source unit makes the excitation light incident on the light incident portion. A second light source unit makes seed light, which causes the wavelength-converting element excited by the excitation light and the amplified spontaneous emission of light to produce a stimulated emission of light, incident on the light incident portion. A lighting unit, into an external space, light emerging from the light emerging portion of the optical fiber.

A photoconversion device includes a holder, a wavelength converter, and an optical element. The holder holds an output portion that outputs excitation light. The wavelength converter includes an incident surface section including a protruding surface to receive the excitation light from the output portion and emits fluorescence in response to the excitation light incident on the incident surface section. The optical element includes a focal point surrounded by the incident surface to direct the fluorescence emitted by the wavelength converter in a predetermined direction.