Patent ID: 8757845
Filing Date: 2014-06-24
Classification: F21K,F21V,F21Y,H01L,Y10T

Abstract:
1. An illumination structure comprising: a light-emitting diode (LED) device on a substrate; a lens secured on the substrate and over the LED device, and wherein a gap exists between the LED device and the lens; and a diffuser cap secured on the substrate and covering the lens, wherein the lens and diffuser cap are designed and configured to redistribute emitting light from the LED device for wide angle illumination; and wherein: the lens includes an inner surface and an outer surface; the inner surface includes a first side portion and a first top portion; the outer surface includes a second side portion and a second top portion, the second side portion extending from a bottom surface and having a concave curved cross-sectional profile configured in a manner such that a bottom of the second side portion protrudes further out from a center of the lens than a top of the second side portion.