Abstract:
A system for generating infrared light includes a sealed housing and a noble gas filling the housing. A window disposed in a wall of the housing is transparent to infrared radiation. Two electrodes, disposed in the housing, are aligned along a common longitudinal axis adapted to be approximately perpendicular to a local force of gravity. A gap is defined between the electrodes along the longitudinal axis. Obstruction(s), disposed in the housing adjacent to the gap between the electrodes, extend along the length of the gap. The obstruction(s) define a convection space between the electrodes. The convection space has a dimension, measured perpendicular to the longitudinal axis, in the range of 2 to 10 times the length of the gap. An electric current source is coupled to the electrodes.
Abstract:
A projection image display device includes an indoor unit to be located indoors and an outdoor unit to be located outdoors. The outdoor unit includes a second refrigerant piping that forms a loop refrigerant path in combination with a first refrigerant piping, a cooling device, and a cooling control circuit that controls cooling for R, G, B laser heat sinks by the cooling device. The indoor unit includes a main control circuit that communicates with the cooling control circuit to control the cooling by the cooling device.
Abstract:
The invention relates to an apparatus and associated method for emitting electromagnetic radiation. The apparatus has at least one electromagnetic radiation emitter and a base. The base has four electrical contacts and an identification device. Two of the electrical contacts are in electrical communication with the at least one electromagnetic radiation emitter. The other two electrical contacts are in electrical communication with the identification device.
Abstract:
An optical transmission module includes a light source element for emitting a predetermined light signal transmitted through an optical fiber, the light source element having lower characteristics in a low-temperature state than those in a high-temperature state, a driver circuit for driving the light source element, and a heat transfer member connected to each of the light source element and the driver circuit to transfer heat between the light source element and the driver circuit. The optical transmission module with such configuration can stably operate in a wide temperature range while achieving power saving and cost reduction.
Abstract:
An LED lighting system may include one or more light-emitting diodes and one or more power management modules. Components of the LED lighting system may be selected and arranged, for example, to match a load voltage to an operating voltage. Matching the load voltage to the operating voltage may enable efficient use of power by the LED lighting system. A method of selecting components of the LED lighting system is provided. For example, the components may be selected based on a target luminance and a given operating voltage. The method may be facilitated and/or implemented with a computer.
Abstract:
A lamp is operated with main and auxiliary amalgams. In accordance with one or more embodiments, a lamp includes an auxiliary amalgam-based material that releases mercury at an elevated temperature that is above an operating temperature of the lamp, and that absorbs mercury at temperatures below the elevated temperature. During a start-up period, the auxiliary amalgam-based material is heated to cause the material to release mercury for generating light in the lamp. After the start-up period, the auxiliary amalgam-based material is allowed to cool below the elevated temperature and absorb mercury, while the lamp continues to operate for generating light using a main amalgam.