US Patent No. 10,026,878

SHAPED PHOSPHOR TO REDUCE REPEATED REFLECTIONS


Patent No. 10,026,878
Issue Date July 17, 2018
Title Shaped Phosphor To Reduce Repeated Reflections
Inventorship Clarisse Mazuir, San Jose, CA (US)
Qingwei Mo, Sunnyvale, CA (US)
Mei-Ling Kuo, San Jose, CA (US)
Lin Li, Pleasanton, CA (US)
Oleg Borisovich Shchekin, San Francisco, CA (US)
Assignee Lumileds LLC, San Jose, CA (US)

Claim of US Patent No. 10,026,878

1. A light emitting device, comprising:light emitting elements comprising light emitting top surfaces, and
a pre-formed wavelength conversion element including a sheet of wavelength conversion material attached to the light emitting top surfaces of the light emitting elements, the sheet comprising:
a light extraction top surface, and
at least one reflective side surface that is neither orthogonal nor parallel to the light extraction top surface, the reflective side surface being at a location between at least two light emitting elements, the reflective side surface comprising a lower edge along a perimeter of a light emitting top surface of one of the at least two light emitting elements.