Solid state lighting devices having remote luminescent material-containing element, and lighting methods

摘要

A lighting device comprising a first group of solid state light emitters, an element containing luminescent material and a second group of solid state light emitters spaced from the element. In some embodiments, (1) at least 50% of light emitted by one of the first group does not mix with light emitted by the second group before the light emitted by the second group has entered the element, (2) at least 90% of exiting light emitted by the second group travels farther within the lighting device than 90% of exiting light emitted by the first group, (3) an average distance traveled by exiting light emitted by the second group is farther than an average distance traveled by exiting light emitted by the second group, and/or (4) light emitted by the first group directly exiting the lighting device exits the lighting device without being incident upon the element.

主权项

1. A lighting device comprising:
a first group of solid state light emitters comprising at least a first solid state light emitter; a luminescent material-containing element comprising at least one luminescent material; and a support element that defines a support element opening, the support element opening extending entirely through the support element, the first group of solid state light emitters is on the support element, and the luminescent material-containing element is in the support element opening and allows at least some light to pass entirely through the support element opening.