Patent application number | Description | Published |
20090231875 | VEHICLE LAMP - A vehicle lamp can include a plurality of light source modules each having an LED as a light source, and optical systems for distributing light from each of the light source modules frontward toward predetermined areas or predetermined patterns that are different from each other and which make up a light distribution pattern. Each of the optical systems can be optimized to emit light to a predetermined area, and each of the light source modules' LEDs can be optimally arranged for each of the corresponding optical systems. | 09-17-2009 |
20100046243 | Vehicle Lighting Unit and Vehicle Light - A vehicle lighting unit can include a first reflector surface and a second reflector surface disposed vertically with the optical axis of an LED light source interposed therebetween. The first reflecting surface and the second reflecting surface can form respective light distribution patterns. The first reflecting surface can include an edge near the projection lens formed in a substantially elliptic shape and designed so as to take an aberration of the projection lens into consideration. The edge can be disposed so as to coincide with a focus group of the projection lens. The second reflecting surface can be formed to have a substantially conical curved surface or a curved surface having at least a part of a cross section of a substantially conical curved surface. Direct light emitted from the LED light source and passing through/between the first reflecting surface and the second reflecting surface can form a light distribution pattern. | 02-25-2010 |
20100073951 | LED LAMP FOR LIGHT SOURCE - Whereas incandescent light bulbs and other similar light sources known in the related art emit light in all directions, LED lamps can emit light in a single direction, and this is manifested in the problem of being unable to achieve light distribution characteristics satisfied by conventional headlamp designs. In accordance with an embodiment of the presently disclosed subject matter, an LED lamp for a light source of a headlamp can include an LED chip in the vicinity of the focus of a projection means and a shielding member covering a portion of the LED chip in a formation allowing a light distribution characteristic suitable for a vehicle front-illumination light to be obtained when light from the LED chip is magnified and projected in an illumination direction by a projection lens or the like constituting the projection means. Accordingly, accurate light distribution characteristics can be obtained in a simple manner by projecting in the illumination direction using the projection lens. | 03-25-2010 |
20100134017 | LIQUID-COOLED LED LIGHTING DEVICE - A liquid-cooled LED lighting device can be provided in which a temporal increase in the temperature of the tubing and the circulation pump when the LED light sources are turned off is prevented to ensure high reliability. The liquid-cooled LED lighting device can include an LED light source, a liquid cooling system including a heat receiving jacket and a radiator, an LED light source-driving power supply for supplying power to the LED light source, and a liquid cooling system-driving power supply for supplying power to the liquid cooling system. The LED lighting device can include a control unit, such as a timer circuit. The control unit can maintain supply of the power to the liquid cooling system for a predetermined period of time after supply of the power to the LED light source is stopped. | 06-03-2010 |
20100264826 | LIQUID-COOLED LED LIGHTING DEVICE - A cooling liquid can be circulated in a liquid cooling system, so that a light source unit and a control unit can be forcedly cooled by the cooling liquid. Thus, a temperature increase in these components can be suppressed, thereby achieving an increase in the output power of a liquid-cooled LED lighting device. The liquid-cooled LED lighting device can include a housing, a light source unit having LEDs as light sources, a liquid cooling system, and a control unit to control the light source unit to be turned on. The liquid cooling system can include a heat receiving jacket, a radiator, a circulation pump and a fan. The light source unit and the control unit can be disposed with the heat receiving jacket of the liquid cooling system interposed therebetween. Further, one surface of the control unit can be brought in close contact with the heat receiving jacket while a heat radiation portion (e.g., fins or pins) can be provided at an other surface of the control unit. | 10-21-2010 |
20100315828 | LIGHT SOURCE AND VEHICLE LAMP - A light source apparatus for vehicle lamps and particularly vehicle headlights can include a plurality of LED elements can be mounted in a cavity located on a base surface or on a base. Each of the LED elements can be arranged in such a manner as to form an emission shape and a brightness distribution that is suited for a light distribution pattern, and especially a light distribution pattern for a vehicle headlight. | 12-16-2010 |
20110063874 | PROJECTION LENS FOR LIGHTING EQUIPMENT AND LIGHTING EQUIPMENT USING PROJECTION LENS FOR LIGHTING EQUIPMENT - A projection lens for lighting equipment of an aspect of the present invention is characterized by formed in a shape where N of sector-shaped lens parts each of which corresponds to a central angle 2α degrees (α=180/N, N is an integer more than or equal to 3) and is bilaterally symmetric in a rotationally asymmetric elliptical collimator lens are circumferentially disposed. The projection lens for lighting equipment of such aspect is formed in the shape where N of the sector-shaped lens parts each of which corresponds to a central angle 2α degrees (α=180/N, N is an integer more than or equal to 3) and is bilaterally symmetric in the rotationally asymmetric elliptical collimator lens are circumferentially disposed. Accordingly, the projection lens for lighting equipment with a novel design which has a shape of a N-sided polygon (e.g. quadrilateral) in planar view or a shape similar to the N-sided polygon and has common edges (N edges) formed on a surface without impairment in function as a collimator lens can be configured. | 03-17-2011 |
20110205748 | VEHICLE LIGHT AND MULTI-FOCAL LENS - A headlight can form a light distribution pattern that prevents uneven brightness when the headlight is set to a high beam mode, and also minimizes power consumption when the headlight is set to the high beam mode. The vehicle light can include a multi-focal lens that has a mid-level lens portion, an upper-level lens portion, and lower-level lens portion. A separator plate can have a front edge positioned at or near the focal point of the mid-level lens portion. Light emitting elements can be mounted on top and bottom of the separator plate, respectively. A first elliptical reflecting surface whose first focal point is set at or near the first light emitting element and whose second focal point is set at or near the focal point of the mid-level lens portion can be provided. A second elliptical reflecting surface can also be provided whose first focal point is set at or near the second light emitting element and whose second focal point is set at or near the focal point of the upper-level lens portion. A hyperbolic reflecting surface can be located adjacent the second elliptical reflecting surface and can have an inner focal point set at or near the second light emitting element and an outer focal point set at or near the focal point of the lower-level lens portion. The vehicle light can be configured such that the first light emitting element and the second light emitting element can selectively emit light beams. | 08-25-2011 |
20130107564 | VEHICLE LIGHTING UNIT | 05-02-2013 |
20140376246 | VEHICLE HEADLIGHT AND OPTICAL FIBER BUNDLE USED IN VEHICLE HEADLIGHT - An optical fiber bundle is used in a vehicle headlight, the optical fiber bundle being configured by binding a plurality of optical fibers. Each optical fiber can include a core having an incident end face on which a laser beam is made incident and an emission end face from which the laser beam is emitted. A clad can surround the core. Emission end faces of the respective plurality of optical fibers can be arranged adjacent to one another on a substantially same plane to create an emission end face group, an external shape of which is a substantial rectangle. | 12-25-2014 |
Patent application number | Description | Published |
20090230467 | SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD OF THE SAME - In a power MISFET having a trench gate structure with a dummy gate electrode, a technique is provided for improving the performance of the power MISFET, while preventing electrostatic breakdown of a gate insulating film therein. A power MISFET having a trench gate structure with a dummy gate electrode, and a protective diode are formed on the same semiconductor substrate. The protective diode is provided between a source electrode and a gate interconnection. In a manufacturing method of such a semiconductor device, a polycrystalline silicon film for the dummy gate electrode and a polycrystalline silicon film for the protective diode are formed simultaneously. A source region of the power MISFET and an n | 09-17-2009 |
20100171174 | SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME - A gate trench | 07-08-2010 |
20100327359 | SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD OF THE SAME - In a power MISFET having a trench gate structure with a dummy gate electrode, a technique is provided for improving the performance of the power MISFET, while preventing electrostatic breakdown of a gate insulating film therein. A power MISFET having a trench gate structure with a dummy gate electrode, and a protective diode are formed on the same semiconductor substrate. The protective diode is provided between a source electrode and a gate interconnection. In a manufacturing method of such a semiconductor device, a polycrystalline silicon film for the dummy gate electrode and a polycrystalline silicon film for the protective diode are formed simultaneously. A source region of the power MISFET and an n | 12-30-2010 |
20110068392 | SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME - A gate trench | 03-24-2011 |
20110233665 | SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME - A gate trench | 09-29-2011 |
20120241855 | SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD OF THE SAME - In a power MISFET having a trench gate structure with a dummy gate electrode, a technique is provided for improving the performance of the power MISFET, while preventing electrostatic breakdown of a gate insulating film therein. A power MISFET having a trench gate structure with a dummy gate electrode, and a protective diode are formed on the same semiconductor substrate. The protective diode is provided between a source electrode and a gate interconnection. In a manufacturing method of such a semiconductor device, a polycrystalline silicon film for the dummy gate electrode and a polycrystalline silicon film for the protective diode are formed simultaneously. A source region of the power MISFET and an n | 09-27-2012 |
20120241856 | SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD OF THE SAME - In a power MISFET having a trench gate structure with a dummy gate electrode, a technique is provided for improving the performance of the power MISFET, while preventing electrostatic breakdown of a gate insulating film therein. A power MISFET having a trench gate structure with a dummy gate electrode, and a protective diode are formed on the same semiconductor substrate. The protective diode is provided between a source electrode and a gate interconnection. In a manufacturing method of such a semiconductor device, a polycrystalline silicon film for the dummy gate electrode and a polycrystalline silicon film for the protective diode are formed simultaneously. A source region of the power MISFET and an n | 09-27-2012 |
20130187223 | SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME - A gate trench | 07-25-2013 |
20140145260 | SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME - A gate trench | 05-29-2014 |
20140193968 | Semiconductor Device and Manufacturing Method of the Same - A method for manufacturing a semiconductor device having a field-effect transistor, including forming a trench in a semiconductor substrate, forming a first insulating film in the trench, forming an intrinsic polycrystalline silicon film over the first insulating film, and introducing first conductive type impurities into the intrinsic polycrystalline silicon film to form a first conductive film. The first conductive film is etched to form a first gate electrode in the trench. Next, a second insulating film is formed in the trench above the first insulating film and the first gate electrode, and | 07-10-2014 |