Patent application number | Description | Published |
20090039785 | Discharge lamp - A discharge lamp comprises a discharge container in which a sealing tube is connected to each end of an arc tube, electrodes arranged inside the arc tube, a glass member provided in the sealing tube, a metallic foil provided on an outer circumference face of the glass member, an external lead which is electrically connected to the metallic foil and which is inserted in a through hole of an external quartz tube, a low melting point glass which is formed in a gap between an inner circumference face of the through hole of the external quartz glass tube and an external circumference face of the external lead, wherein a concave portion is formed at an outer end of the through hole. | 02-12-2009 |
20100264820 | Laser driven light source - An laser driven light source comprises a bulb that encloses a discharge medium, a laser beam unit for emitting a laser beam, wherein the laser beam is focused in the bulb for generating a discharge, and a beam shield element that is provided in the bulb to shield peripheral devices from the laser beam, which passes through the discharge generated in the bulb. | 10-21-2010 |
20110095683 | High pressure discharge lamp and method of manufacturing high pressure discharge lamp - A high pressure discharge lamp has a sealing portion that is made of glass and a sealing metal piece. In a method of manufacturing the high pressure discharge lamp, the sealing metal piece is irradiated with laser beam whose pulse width is 1×10 | 04-28-2011 |
Patent application number | Description | Published |
20100164347 | LIGHT SOURCE DEVICE - A light source device that irradiates a discharge vessel with a laser beam to produce radiant light that is reflected by an ellipsoidal reflecting surface efficiently utilizes the light produced by directing the laser beam through an unirradiated region where reflected light from the ellipsoidal reflector is blocked by the discharge vessel, through an opening side of the ellipsoidal reflector to the discharge vessel. The discharge vessel has an emission substance enclosed inside which is excited by the laser beam and produces radiant light, is arranged at a focal point of the ellipsoidal reflector. A planar mirror, with which radiant light reflected by the ellipsoidal reflector is reflected in a different direction has a window in an unirradiated region where reflected light from the ellipsoidal reflector is blocked by the discharge vessel through which the laser beam passes to the discharge vessel. | 07-01-2010 |
20100165656 | LIGHT SOURCE - A light source is provided. The light source includes: an elliptical reflection mirror having first and second focal points; a discharge chamber in which a luminescent substance is enclosed and which is disposed on the first focal point; a laser light generator which emits the laser light; and a laser light guide which guides the laser light from an opening side of the elliptical reflection mirror into the discharge chamber. The luminescent substance is excited by providing the laser light to the luminescent substance so as to emit light, and the light is reflected by the elliptical reflection mirror. The laser light guide is disposed in a shade area in which the light reflected by the elliptical reflection mirror is blocked by the discharge chamber. | 07-01-2010 |
20110085337 | LIGHT SOURCE DEVICE - In a light source device provided with a light emission tube in which a light emitting element is enclosed and at least one laser oscillator part for radiating a laser beam towards said light emission tube, for focusing a beam within a light emission tube with a large solid angle and for preventing that the beam with a high energy density impinges upon the wall of the light emission tube, the light emission tube has a tube wall, part of which is made to function as a focusing means, or the light emission tube has a focusing means at the inner surface thereof. | 04-14-2011 |
20130313970 | SHORT ARC DISCHARGE LAMP - Disclosed herein is a short arc discharge lamp which has a cathode electrode structure formed by solid-phase bonding a tip part made of thoriated tungsten to a body part made of tungsten. According to the present invention, the bonding strength between the body part and the tip part is increased to the same level as the mechanical strength of tungsten, thus preventing a breakage from being caused on a junction interface. For this, on a section of the cathode electrode taken along a line perpendicular to the junction interface, in an arbitrary portion of 500 μm or more in length along the junction interface, when a length of the arbitrary portion along the junction interface is set to L | 11-28-2013 |
20140015404 | SHORT ARC TYPE MERCURY LAMP - A short arc type mercury lamp structure has Hg and a rare gas which are enclosed inside a light-emitting tube. Kr is enclosed as the rare gas. It is possible to realize the initial intensity of radiation at the same level as in the case in which Ar is enclosed and prevent a sudden decrease in the intensity of radiation when the lamp is lighted for a long time. The longevity of the lamp is greatly increased than that of a lamp in which Ar is enclosed. The anode satisfies the formula: | 01-16-2014 |