THIN ILLUMINATION SYSTEM
First Claim
1. An illuminating system, comprising:
- a single LED emitter having a square or rectangular emitting aperture that is d1 by d2,a four sided etendue preserving angle transforming reflector whose input aperture is disposed just above the output emitting aperture of said single LED emitter receiving LED emission,a light guiding pipe whose input aperture receives light from the output aperture of said etendue preserving angle transforming reflector element,a light guiding plate one edge of which is disposed adjacent to said rectangular edge of said light guiding pipe.
4 Assignments
0 Petitions
Accused Products
Abstract
The present invention introduces a new class of thin doubly collimating light distributing engines for use in a variety of general lighting applications. Output illumination from these slim-profile illumination systems whether square, rectangular or circular in physical aperture shape is directional, square, rectangular or circular in beam cross-section, and spatially uniform and sharply cutoff outside the system'"'"'s adjustable far-field angular cone. Some embodiments provided include thin light distributing engines which provide input light collimated in one meridian and a light distributing element that maintains input collimation while collimating output light in the un-collimated orthogonal meridian, in such a manner that the system'"'"'s far-field output light is collimated in both its orthogonal output meridians. The present invention can also include optical films that process the engine'"'"'s doubly collimated output illumination so as to increase its angular extent one or both output meridians without changing beam shape or uniformity.
35 Citations
20 Claims
-
1. An illuminating system, comprising:
-
a single LED emitter having a square or rectangular emitting aperture that is d1 by d2, a four sided etendue preserving angle transforming reflector whose input aperture is disposed just above the output emitting aperture of said single LED emitter receiving LED emission, a light guiding pipe whose input aperture receives light from the output aperture of said etendue preserving angle transforming reflector element, a light guiding plate one edge of which is disposed adjacent to said rectangular edge of said light guiding pipe. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
-
-
17. An illuminating system, comprising:
-
a linear array of LED emitters whose center-to-center distance between emitters is W, and each having a square or rectangular output aperture that is d1 by d2, a substrate circuit with electrical interconnection means for said array of LED emitters, a linear array of rectangular four sided etendue preserving angle transforming reflectors whose rectangular input apertures are d1 by d2 and have a center-to-center spacing W, with each said input aperture disposed just above said output aperture of each said LED emitter in said array, a light guiding plate one edge of which is disposed adjacent to said rectangular edge of said light guiding pipe. - View Dependent Claims (18, 19, 20)
-
Specification