Patent · US Active

LED dental light source with variable chromaticity and method

US10257901B2 · kind B2 · utility

0Cited by

1References

7Claims

0Family size

Assignee

OSRAM GmbH · DE

Inventors

Andreas Osten · Berlin, DE
Jack Burwick · York, US

Key dates

Filing date	Sep 3, 2014
Grant date	Apr 9, 2019
Priority date	—
Expiry date	Jul 29, 2036

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF21Y2115/10
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A dental light having an array of light emitting diode (LED) assemblies, at least one first LED assembly having at least one first LED element configured to emit light according to a first spectral distribution, a conversion phosphor configured to convert at least a portion of the first spectral distribution. At least one filter is fixed within said converted light, the filter configured to block at least a portion thereof. The array includes at least one second LED element configured to emit light according to a second spectral distribution, wherein light having the filtered spectral distribution is selectively emitted from said array in a first mode and from both the filtered and second spectral distributions in a second mode.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.