TIR lens for waveguide injection
First Claim
1. In combination,a) a TIR lens having multiple facets, andb) a waveguide optically coupled to the TIR lens,c) said waveguide having an edge portion,d) said TIR lens including multiple TIR lenses located proximate said edge portion,e) and including multiple light sources, each source associated with and facing one of said TIR lenses,f) and wherein there are multiple like groups of three of said sources.
5 Assignments
0 Petitions
Accused Products
Abstract
A radiant energy redirecting system comprising a radiant energy transmitting body structure; the structure comprising multiple elements, each of which acts as a radiant energy redirecting module, having on its cross-sectional perimeter an entry face to receive incidence of the energy into the interior of the perimeter, an exit face to pass the energy to the exterior of the perimeter in a direction towards the reverse side of the body from the side of the incidence, and a Totally Internally Reflecting face angled relative to the entry and exit faces to redirect towards the exit face the radiant energy incident from the entry face; the body structure generally redirecting incident radiant energy towards a predetermined target zone situated apart from and on the reverse side of the body relative to the side of the incidence; and lens structure associated with at least one of the faces for redirecting radiant energy passing between the entry and exit faces via the Totally Internally Reflecting face.
288 Citations
20 Claims
-
1. In combination,
a) a TIR lens having multiple facets, and b) a waveguide optically coupled to the TIR lens, c) said waveguide having an edge portion, d) said TIR lens including multiple TIR lenses located proximate said edge portion, e) and including multiple light sources, each source associated with and facing one of said TIR lenses, f) and wherein there are multiple like groups of three of said sources.
-
20. In combination,
a) a TIR lens having multiple facets, and b) a waveguide optically coupled to the TIR lens, c) the waveguide being a plate having at least one edge, the TIR lens extending proximate said edge, d) said edge being elongated and said TIR lens comprises multiple TIR lens distributed along said plate edge, e) and including multiple light sources, each source associated with and facing one of said TIR lenses, and means to cause the sources to emit light of different colors, f) and wherein there are multiple like groups of three of said sources, one source in each group emitting light of a first color, a second source in each group emitting light of a second color, and a third source in each group emitting light of a third color.
Specification