Light emitting diode headlamp for a vehicle
US8314558B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2010 |
| Grant date | Nov 20, 2012 |
| Priority date | — |
| Expiry date | Jan 15, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21S41/285
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A vehicle exterior lamp is provided with an array of light emitting diodes (LEDs) with rows and columns and each LED positioned at an intersection thereof. An LED is illuminated by selectively applying a signal to the row and column corresponding to the LED position. A vehicle headlamp lighting system is provided with an array of LEDs with rows and columns, and each LED positioned at a row and column intersection. The lighting system has a control module for selectively illuminating the LEDs by applying a signal to the rows and to the columns corresponding to the location of the LEDs to be illuminated. A vehicle headlamp is provided with an optical structure for reflection and refraction of light and LEDs. Light emitted by the LEDs interacts with the optical structure and exits the headlamp in a generally perpendicular direction to the LED emitted light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.