LIGHT-EMITTING ELEMENT

摘要

The present invention relates to a tubular-shaped optical conversion element suitable for use in a light-emitting device. The element includes a light source and at least one wavelength conversion layer containing materials such as phosphors or quantum dots in a silicone matrix. The element also contains thermally conductive additives dispersed in the silicone matrix that improve thermal conduction within the wavelength conversion layer. The tubular element can be manufactured by economical methods and in various shapes. The present invention is also related to a LED lighting device that includes a LED light source within a tubular-shaped shell. A curable silicone fluid can be used to fill the space between the LEDs and the tubular shell and provide efficient light coupling between the LED and the shell.

主权项

1. A light-emitting element comprising a transparent tubular-shaped shell surrounding a cavity, wherein the cavity includes at least one light source optically coupled to the tubular shell, and wherein the tubular-shaped shell comprises a wavelength conversion layer.