Non-imaging optical lens and lighting device having the same

摘要

The present invention relates to a non-imaging optical lens and a light-emitting module having the same. The lens includes a concave region having a continuous curved optical surface formed by a plurality of facets spliced together. The continuous curved optical surface faces the light-emitting device. The curved surface consists of an array in at least three rows of the facets and at least three columns of the facets.

主权项

1. A non-imaging optical lens comprising:
a convex region being a light emitting surface; and a concave region being a light incident surface, wherein the concave region has a curved optical surface formed by a plurality of flat facets spliced together, wherein the curved surface is a spliced hyperbolic paraboloid surface.