Cree Gmbh

Peter Guschl

Gerald H Negley

Antony Paul Van De Ven

Bernd P Keller

Eric J Tarsa

Zongjie Yuan

Tao Tong

Ronan Letoquin

Christopher P Hussell

Nicholas William Medendorp, Jr

Theodore D Lowes

Mark Youmans

Ronan P Letoquin

A lighting device comprising a solid-state light source, and a diffuser configured for color mixing of the light from the solid-state light source and spatially separated therefrom, the diffuser comprising at least one phosphor material. Methods of fabricating a lighting device having a reduced total amount of phosphor comprising combining an amount of phosphor with a diffuser structure.

Reduced phosphor lighting devices

A lighting device comprising a light source and a diffuser spaced from the light source. The lighting device further comprises a wavelength conversion material disposed between the light source and the diffuser and spaced from the light source and the diffuser, wherein the diffuser is shaped such that there are different distances between the diffuser and said conversion material at different emission angles. In other embodiments the diffuser includes areas with different diffusing characteristics. Some lamps are arranged to meet A19 and Energy Star lighting standards.

Non-uniform diffuser to scatter light into uniform emission pattern

A light emitter package comprising a light emitter disposed on a surface and a primary optic comprising an encapsulant disposed over the light emitter is disclosed. The package further comprises at least one intermediate element on the surface and at least partially surrounding the light emitter such that the intermediate element at least partially defines the shape of the primary optic. The intermediate element is configured so at least a portion of the intermediate element can be removed.

Complex primary optics with intermediate elements

Growing community of inventors

Carpinteria, CA, United States of America

Peter Guschl