Patent ID: 9234644
Filing Date: 2016-01-12
CPC Classification: B29C,B29D,F21K,F21V,F21Y,G02B,H01L

Claim Text:
1. An optical element for influencing the light emission of a substantially punctiform light source, in particular an LED, the element comprising: a hollow body having a central axis, a truncated-pyramid-like or truncated-cone-like basic shape outer wall, an approximately rectangular base surface forming a light emission surface, and having a top surface with a central area sized to receive a light source and form a light entrance surface, wherein, the outer wall further comprising four side regions extending from the rectangular base surface inwardly toward the top surface, and four corner surfaces alternatively interposed between the four side regions, each extending between a corner of the rectangular base surface to the top surface, forming a planar or rotationally symmetrically segment of the outer wall thereby eliminating sharp internal corners extending from the corners of the rectangular base surface and the top surface, providing an interior surface which continuously expands without graduations between the top surface to the rectangular base surface.