US 12,033,990 B2
Multi-color phosphor converted LED package with single cavity
Wouter Soer, Utrecht (NL); and Gregory Tashjian, San Jose, CA (US)
Assigned to Lumileds LLC, San Jose, CA (US)
Filed by Lumileds LLC, San Jose, CA (US)
Filed on Jun. 22, 2022, as Appl. No. 17/846,616.
Application 17/846,616 is a continuation of application No. 16/714,238, filed on Dec. 13, 2019, granted, now 11,398,458.
Prior Publication US 2022/0328462 A1, Oct. 13, 2022
Int. Cl. H01L 25/075 (2006.01)
CPC H01L 25/0753 (2013.01) 13 Claims
OG exemplary drawing
 
1. A lighting device comprising:
a first LED configured to emit a first light;
a second LED configured to emit a third light;
a third LED configured to emit a fifth light;
a second phosphor disposed over and in contact with the second LED, the second phosphor arranged to absorb a portion of the third light directly from the second LED and in response emit a fourth light of a longer wavelength than the third light,
a third phosphor different from the second phosphor disposed over and in contact with the third LED, the third phosphor arranged to absorb a portion of the fifth light directly from the third LED and in response emit a sixth light of a longer wavelength than the fifth light, and
a first phosphor disposed over the first LED, the second LED, the third LED, the second phosphor, and the third phosphor, the first phosphor is in contact with the first LED, the first phosphor arranged to absorb a portion of the first light directly from the first LED and in response emit a second light of a longer wavelength than the first light, the fourth light exits the second phosphor directly into the first phosphor, the sixth light exits the third phosphor directly into the first phosphor, the first phosphor comprising a light emitting surface opposite the first, second and third LEDs through which light exits the lighting device.