The present disclosure relates to the technical field of electric light sources, particularly to a metal halide lamp and a manufacturing method thereof. The metal halide lamp includes an electric arc tube, an inner glass bulb, and a lamp holder fixedly connected with the inner glass bulb; the electric arc tube includes a tube body, a positive electrode located inside an electric arc cavity of the tube body and connected with a positive feedthrough inserted in a first leg portion of the tube body, and a negative electrode connected with a negative feedthrough inserted in a second leg portion of the tube body; the electric arc cavity is provided therein with an ignition gas; an outer surface of the first leg portion is provided with a conductive layer and a metal electrical connector, wherein the conductive layer has one end close to and the other end away from an electrode tip of the positive electrode, the metal electrical connector has one end connected with the other end of the conductive layer, and the other end connected with a long molybdenum rod. Security risks in manufacturing, transportation, mounting, utilization, storage, and waste disposal brought about by use of the radioactive material .sup.85Kr are avoided in the present disclosure.

To provide a light irradiation device using a plurality of flash lamps in which a structure that can emit high intensity light as a whole and enables a flash lamp to be used for a practical lifetime without increasing an input current to each lamp is adopted.

A light emission surface is provided on a distal end on a second electrode introducing part side of a light-emitting tube of a flash lamp including a first electrode introducing part and the second electrode introducing part, and a plurality of flash lamps are arranged in a standing manner on a top plate of a processing chamber so that the light emission surface faces the inside of the processing chamber.

The present disclosure relates to the technical field of electric light sources, particularly to a metal halide lamp and a manufacturing method thereof. The metal halide lamp includes an electric arc tube, an inner glass bulb, and a lamp holder fixedly connected with the inner glass bulb; the electric arc tube includes a tube body, a positive electrode located inside an electric arc cavity of the tube body and connected with a positive feedthrough inserted in a first leg portion of the tube body, and a negative electrode connected with a negative feedthrough inserted in a second leg portion of the tube body; the electric arc cavity is provided therein with an ignition gas; an outer surface of the first leg portion is provided with a conductive layer and a metal electrical connector, wherein the conductive layer has one end close to and the other end away from an electrode tip of the positive electrode, the metal electrical connector has one end connected with the other end of the conductive layer, and the other end connected with a long molybdenum rod. Security risks in manufacturing, transportation, mounting, utilization, storage, and waste disposal brought about by use of the radioactive material .sup.85Kr are avoided in the present disclosure.

An excimer lamp according to an embodiment of the present disclosure is capable of improving start-up characteristics and a light irradiation efficiency of a lamp and being miniaturized. The excimer lamp includes a light emitting tube emitting light, a first electrode disposed at an outer side of the light emitting tube, a second electrode disposed at an outer side of the light emitting tube in correspondence to the first electrode, and an auxiliary light emitting body disposed between the first electrode and the second electrode to emit light toward the light emitting tube when a voltage is applied to the first and second electrodes, and a light irradiation device having the same.

When an insulated gate bipolar transistor is incorporated in a drive circuit of a flash lamp, so that a light emission pattern of the flash lamp is freely defined, a temperature change pattern of a surface of a semiconductor wafer that receives the emission of flash light can be adjusted. The length of diffusion of impurities can be controlled by rising a surface temperature of the semiconductor wafer from a preheating temperature to a diffusion temperature through emission of flash light and maintaining the surface temperature at the diffusion temperature for a time period not shorter than 1 millisecond and not longer than 10 milliseconds. Subsequently, the impurities can be activated by rising the surface temperature of the semiconductor wafer from the diffusion temperature to an activation temperature.

Flash tubes for photographic use, in particular, a flash tube is adapted to provide a light output adapted to FP-sync, Flat Peak. The flash tube includes a length of glass tubing enclosing a gas for use in the flash tube, a cathode inside a first end part of glass tubing and an anode inside a second end part of glass tubing. The cathode includes an element that helps to ionize the gas that is wound around the cathode, such that a spark stream starts from the upper part of the cathode and is prevented from spreading down wards on the cathode and changing the arc length during the light output adapted to FP-sync.

The invention relates to a high-pressure discharge lamp having an ignition aid and comprising a discharge vessel, which is accommodated in an outer bulb. The ignition aid is a UV enhancer having a can-like container (12), which has an inner electrode (18). At least part of the end-face edge of the inner electrode at least comes close to the end face (24) of the container (12). An external electrode is attached to the outside of the container.

An apparatus and a method for operating a sealed high intensity illumination lamp configured to receive a laser beam from a laser light source. The lamp includes a sealed chamber configured to contain an ionizable medium having a plasma sustaining region, and a plasma ignition region. A high intensity light egress window emits high intensity light from the chamber. A substantially flat ingress window located within a wall of the chamber admits the laser beam into the chamber. The lamp includes means for controlled increasing and decreasing a pressure level within the sealed chamber while the lamp is producing the high intensity illumination.

A light irradiation device according to an embodiment includes an excimer lamp including a light emitting tube emitting light, a first electrode disposed at an outer side of the light emitting tube, a second electrode disposed at an outer side of the light emitting tube in correspondence to the first electrode, and an auxiliary light emitting body disposed between the first electrode and the second electrode to emit light toward the light emitting tube when a voltage is applied to the first and second electrodes, and a case in which the excimer is provided and which has a contact point adjustment part configured to accommodate a portion of the auxiliary light emitting body.

A starting aid for discharge lamp arc tubes is characterized by an arc tube having a tubular body wall that longitudinally extends between first and second ends and surrounding an internal arc cavity with first and second electrodes that have conductive feedthroughs to electrically connect to corresponding first and second external arctube leads; an antenna conductor extending longitudinally on an outside surface of the arc tube wall between first and second antenna ends that are located radially outward of corresponding first and second electrodes; and an antenna coupling member comprising a conductive coupling connector that is electrically connected to the first arctube lead, and extends to a coupling end located on the body wall near to the first antenna end and separated from it by a coupling gap of predetermined, non-zero gap dimension.