Patent application number | Description | Published |
20100219431 | Multi-Junction LED - A light source and method for making the same are disclosed. The light source includes a substrate and a light emitting structure that is deposited on the substrate. A barrier divides the light emitting structure into first and second segments that are electrically isolated from one another. A serial connection electrode connects the first segment in series with the second segment. A first blocking diode between the light emitting structure and the substrate prevents current from flowing between the light emitting structure and the substrate when the light emitting structure is emitting light. The barrier extends through the light emitting structure into the first blocking diode. | 09-02-2010 |
20110031508 | Method and Apparatus for Manufacturing LED Devices using Laser Scribing - A method of manufacturing a light-emitting device using laser scribing to improve overall light output is disclosed. Upon placing a semiconductor wafer having light emitting diode (“LED”) devices separated by streets on a wafer chuck, the process arranges a first surface of semiconductor wafer containing front sides of the LED devices facing up and a second surface of semiconductor wafer containing back sides of the LED devices facing toward the wafer chuck. After aligning a laser device over the first surface of the semiconductor wafer above a street, the process is configured to focus a high intensity portion of a laser beam generated by the laser device at a location in a substrate closer to the back sides of the LED devices. | 02-10-2011 |
20110068672 | Distributed LED-Based Light Source - A light source having a substrate with a plurality of component LED light generators mounted thereon is disclosed. The substrate has a first metallic surface characterized by a normal that points in a normal direction. The first metallic surface is in contact with air over the first metallic surface. The component LED light generators are mounted directly on the first metallic surface. Each component LED light generator includes an LED characterized by an operating temperature and emitting light in the normal direction. Each LED generator generates more than 0.5 watts of heat. The component LED light generators are spaced apart on the first metallic surface such that the operating temperature remains less than 75° C. above the air temperature. In one aspect of the invention, the first metallic surface surrounding each component LED light generator radiates an amount of heat equal to the heat generated by that component LED light generator. | 03-24-2011 |
20120038286 | DRIVE CIRCUIT FOR A COLOR TEMPERATURE TUNABLE LED LIGHT SOURCE - A drive circuit for a color temperature tunable LED light source. An apparatus includes a current driver configured to output a first drive current to drive a first group of LED chips of the light source to emit first color temperature light and to output a second drive current to drive a second group of LED chips of the light source to emit second color temperature light. The apparatus also includes a controller coupled to the current driver and configured to control the first and second drive currents so that the first color temperature light and the second color temperature light combine to produce a resulting light having a selected color temperature and a selected intensity value. | 02-16-2012 |
20120038291 | COLOR TEMPERATURE TUNABLE LED LIGHT SOURCE - A color temperature tunable LED light source. An apparatus is provided that includes a substrate, a first group of LED chips mounted on the substrate and configured to produce first color temperature light having a first intensity value determined from a first drive current, and a second group of LED chips mounted on the substrate and configured to produce second color temperature light having a second intensity value determined from a second drive current, wherein the first color temperature light and the second color temperature light combine to produce light having a resulting color temperature and a resulting intensity value. | 02-16-2012 |
20120058584 | Multi-Junction LED - A light source and method for making the same are disclosed. The light source includes a substrate and a light emitting structure that is deposited on the substrate. A barrier divides the light emitting structure into first and second segments that are electrically isolated from one another. A serial connection electrode connects the first segment in series with the second segment. A first blocking diode between the light emitting structure and the substrate prevents current from flowing between the light emitting structure and the substrate when the light emitting structure is emitting light. The barrier extends through the light emitting structure into the first blocking diode. | 03-08-2012 |
20120068604 | LED-Based Replacement for Fluorescent Light Source - A light source that is adapted to replace existing fluorescent tubes in an existing fluorescent light fixture is disclosed. The light source includes a plurality of LEDs mounted on a heat-dissipating structure, first and second plug adapters that mate with the florescent tube connectors of the fluorescent tube the light source is to replace, and a power adapter that converts power from a fluorescent tube ballast presented on the first and second plug adapters to DC power that powers the LEDs. The light source is powered from the output of the existing fluorescent ballast. The light source can utilize the existing metallic enclosure as a heat-radiating surface and/or direct air heat transfer from the surface of the heat-dissipating structure. | 03-22-2012 |
20130092900 | NANOWIRE SIZED OPTO-ELECTRONIC STRUCTURE AND METHOD FOR MANUFACTURING THE SAME - An opto-electric structure includes a plurality of nano elements arranged side by side on a support layer, where each nano element includes at least a first conductivity type semiconductor nano sized core, and where the core and a second conductivity type semiconductor form a pn or pin junction. A first electrode layer that extends over the plurality of nano elements and is in electrical contact with at least a portion of the second conductivity type semiconductor, and a minor provided on a second conductivity type semiconductor side of the structure. | 04-18-2013 |
Patent application number | Description | Published |
20100293114 | REAL ESTATE INVESTMENT METHOD FOR PURCHASING A PLURALITY OF DISTRESSED PROPERTIES FROM A SINGLE INSTITUTION AT FORMULA-DERIVED PRICES - A real estate investing method is disclosed in which aggregated investment capital is used to purchase a plurality of properties from a single lending institution at short-sale prices calculated using a pre-negotiated formula. The lending institution agrees to identify and qualify properties, and accept the short-sale prices, in return for selling a plurality of distressed properties under a single agreement. Owners avoid foreclosure and consequent damage to their credit. Investors aren't burdened by property selection and/or maintenance. In preferred embodiments, owner-occupied homes are purchased, leased back to their occupants, and eventually resold to the occupants if their finances recover. Repurchase credit incentives can be offered to occupants, providing limited participation in property appreciation and motivating occupants to maintain the properties and strive to repurchase them. During leases, landlord services are provided under contract by local service providers and/or regional warranty providers. A central support group can provide centralized tenant support. | 11-18-2010 |
20120005122 | REAL ESTATE INVESTMENT METHOD FOR PURCHASING A PLURALITY OF DISTRESSED PROPERTIES FROM A SINGLE INSTITUTION AT FORMULA-DERIVED PRICES - A real estate investing method is disclosed in which aggregated investment capital is used to purchase a plurality of properties from a single lending institution at short-sale prices calculated using a pre-negotiated formula. The lending institution agrees to identify and qualify properties, and accept the short-sale prices, in return for selling a plurality of distressed properties under a single agreement. Owners avoid foreclosure and consequent damage to their credit. Investors aren't burdened by property selection and/or maintenance. In preferred embodiments, owner-occupied homes are purchased, leased back to their occupants, and eventually resold to the occupants if their finances recover. Repurchase credit incentives can be offered to occupants, providing limited participation in property appreciation and motivating occupants to maintain the properties and strive to repurchase them. During leases, landlord services are provided under contract by local service providers and/or regional warranty providers. A central support group can provide centralized tenant support. | 01-05-2012 |