Patent application number | Description | Published |
20100013369 | HIGH-PRESSURE DISCHARGE LAMP, LAMP UNIT USING THE SAME, AND PROJECTIVE IMAGE DISPLAY DEVICE USING THE LAMP UNIT - A long-life high-pressure discharge lamp can (i) suppress damage to sealing portions, especially at an initial stage of the accumulated lighting time, (ii) allow for easy assembly of components such as electrodes and (iii) prevent deformation/ripping of metallic foils. An arc tube is a glass enveloping vessel with electrodes arranged therein, and includes: a light emitting portion in which materials are enclosed and a discharge space is formed; and sealing portions provided at ends of the light emitting portion. Each electrode includes an electrode bar whose first end is in the discharge space, and whose second end is in the corresponding sealing portion and connected to a metallic foil. The second end of each electrode bar is partially wrapped around by a sleeve-like metallic cover foil that has a cut-out section positioned over a joining area where the second end of each electrode bar is joined to the metallic foil. | 01-21-2010 |
20100097069 | EVALUATION SYSTEM, LIGHTING DEVICE, AND IMAGE DISPLAY DEVICE - An image display device accurately evaluates the possibility of problems occurring due to the state of impure gas inside a discharge envelope in a high pressure discharge lamp. The image display device includes the high voltage discharge lamp and an evaluation unit ( | 04-22-2010 |
20100188855 | HIGH-PRESSURE DISCHARGE LAMP, LAMP UNIT USING THE SAME, AND PROJECTION-TYPE IMAGE DISPLAY DEVICE USING THE LAMP UNIT - A short arc high-pressure discharge lamp has an arc tube | 07-29-2010 |
20100231872 | METHOD FOR MANUFACTURING HIGH-PRESSURE DISCHARGE LAMP, HIGH-PRESSURE DISCHARGE LAMP, LAMP UNIT AND PROJECTION-TYPE IMAGE DISPLAY - The present invention is directed to a method for manufacturing a high-pressure discharge lamp including: a spherical portion forming a light-emitting portion ( | 09-16-2010 |
20110075116 | HIGH-PRESSURE DISCHARGE LAMP DEVICE AND PROJECTOR USING THE SAME - To aim to provide a simple high-pressure discharge lamp apparatus. The lamp apparatus suppresses local temperature increase in an arc tube during lighting, and uniforms temperature in the arc tube. A lamp is built into a reflector so as to form a lamp unit such that a central axis of the lamp coincides with an optical axis of the reflector. A pair of rotating bodies with a fixed interval therebetween each has a circular outer circumferential surface, and the optical axis of the reflector coincides with a central axis of the circumferential surface of the rotating bodies. A pair of electrodes is electrically connected to the circumferential surface of each rotating body, and the rotating bodies are placed on two rotating rollers arranged in parallel. A drive motor drives the lamp unit in a fixed direction on the rotating rollers. Feeding members feed the rotating bodies with power. | 03-31-2011 |
20120033190 | ELECTRODE USED FOR DISCHARGE LAMP, HIGH PRESSURE DISCHARGE LAMP, LAMP UNIT, AND PROJECTION IMAGE DISPLAY APPARATUS - The present invention aims to prevent breakage of a sealing part and an electrode of a high pressure discharge lamp, and provides an electrode | 02-09-2012 |
20120069307 | HIGH-VOLTAGE DISCHARGE LAMP, LAMP UNIT, PROJECTION IMAGE DISPLAY DEVICE, AND METHOD FOR MANUFACTURING HIGH-VOLTAGE DISCHARGE LAMP - Disclosed is a high-pressure discharge lamp ( | 03-22-2012 |
20130335715 | HIGH-PRESSURE DISCHARGE LAMP HAVING AN ARC TUBE IN WHICH A PAIR OF ELECTRODE RODS ARE DISPOSED, LUMP UNIT, AND PROJECTOR-TYPE IMAGE DISPLAY APPARATUS - A high-pressure discharge lamp having an arc tube with a casing made of glass. The arc tube includes a light-emitting part and sealing parts connected to the light-emitting part. A pair of electrode rods are disposed within the glass casing such that their tips face each other with a gap therebetween and project into the discharge space, and their base ends are embedded in the sealing parts and overlap surfaces of metal foils provided in the sealing parts. Each base end is coated with a coating foil made of metal and having a C-like cross section with a slit formed between edges thereof. An end of the coating foil farthest from the light-emitting part is located closer to the light-emitting part than an end of the metal foil closest to the light-emitting part. | 12-19-2013 |
20140117836 | HIGH-PRESSURE DISCHARGE LAMP AND PROJECTOR HAVING THE HIGH-PRESSURE LAMP - A high-pressure discharge lamp having an electrode including an electrode rod, a melted part and a coil part, and satisfying | 05-01-2014 |