Optic assemblies and applications thereof
View Patent ↗In one aspect, optic assemblies are provided comprising a collimating optic directing light along a collimation axis and light redirection elements comprising facets for redirecting a portion of the light in one or more directions away from the collimation axis.
1. An optic comprising:
a vertical axis;
facets having orientation relative to the vertical axis at one or more angles supporting redirection of light by total internal reflection; and
one or more refractive elements, wherein the facets and refractive elements work in conjunction to redirect light away from the vertical axis.
2. The optic of claim 1 , wherein the facets and refractive elements are adjacent to one another.
3. The optic of claim 1 , wherein the facets comprise annular segments.
4. The optic of claim 3 , wherein the annular facets define a cavity of the optic.
5. The optic of claim 4 , wherein the cavity is of dimension to receive a light source.
6. The optic of claim 5 , wherein the light source is a light emitting diode.
7. The optic of claim 1 , wherein the facets have uniform spacing relative to one another.
8. The optic of claim 7 , wherein the facets have non-uniform spacing relative to one another.
9. The optic of claim 1 , wherein facet height varies between the facets.
10. The optic of claim 1 , where one or more of the facets has radial curvature.
11. The optic of claim 10 , wherein the radial curvature is set according to several polynomial functions forming segments of the facet.
12. The optic of claim 1 , wherein the facets are arranged in an array.
13. A luminaire comprising:
a light source; and
at least one optic receiving light from the light source, the optic comprising a vertical axis, facets having orientation relative to the vertical axis at one or more angles supporting redirection of the light by total internal reflection, and one or more refractive elements, wherein the facets and refractive elements work in conjunction to redirect light away from the vertical axis.
14. The luminaire of claim 13 , wherein the facets comprise annular segments.
15. The luminaire of claim 14 , wherein the annular facets define a cavity of the optic.
16. The luminaire of claim 15 , wherein the cavity is of dimension to receive a light source.
17. The luminaire of claim 16 , wherein the light source is a light emitting diode.
18. The luminaire of claim 13 , wherein one or more of the facets has radial curvature.
19. The luminaire of claim 18 , wherein the radial curvature is set according to several polynomial functions forming segments of the facet.
20. The luminaire of claim 13 , wherein the at least one optic comprises a plurality of optics.