LED light for examinations and procedures
US8872435B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2011 |
| Grant date | Oct 28, 2014 |
| Priority date | — |
| Expiry date | Jul 18, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light is provided having a base unit, an arm extending from the base unit, and a lamp head coupled to the arm. The lamp head includes an LED configured to provide light based on an input drive current, an optical mixing element configured to collect the light produced by the LED and a zoom lens configured to adjust an output size of a spot generated by the light collected in the mixing element. A controller receives DC power from the base unit through the arm. The controller is configured to set the input drive current for the LED to control an output light density of the spot in response to an operator selected input and configured to adjust the output light density of the spot in response to a change in the size of the spot.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.