Diverging TIR facet LED optics producing narrow beams with color consistency

An LED optic comprising:

• a first lens adapted to be positioned below an LED, the first lens being positioned within a lower collecting lens and an upper collecting optic and above a second lens, the first lens, the lower collecting lens and upper collecting optic being positioned at a top end of a second lens portion,
• wherein the second lens portion has a first side section bearing a plurality of groups of flat TIR facets, each flat TIR facet being configured to diverge light incident thereupon;
• wherein the second lens portion further has a second side section of parabolic beam-reflecting TIR facets each of which is parabolic in side section, the second side section of parabolic facets being located below the first side section bearing the plurality of groups of flat TIR facets;
• a horizontally disposed angle-matched refracting lens positioned at an end of the second side section of parabolic TIR facets, the angle-matched refracting lens surrounding said second lens;
• and
• wherein each flat TIR facet has a face which is a linear segment in section without peaks or depressions and comprises a frustum of a right circular cone formed about a central axis of the optic.

An LED optic comprising:

• an angle matched refracting lens comprising a plurality of refractor facets located along a bottom light emitting surface of the optic and defined by a plurality of circular discontinuities;
• a plurality of facet groups each facet group containing a plurality of frusto-conically shaped TIR facets arranged down a side of the optic and positioned to lie beneath an LED, each facet of each group being flat so as to diverge light incident thereupon, each facet group of frusto-conically shaped flat TIR facets being configured to direct light upon a corresponding one of the plurality of facets of the angle matched refracting lens;
• a first spherical convex lens positioned below the LED;
• an upper collecting optic disposed above and radially surrounding the first spherical convex lens, the upper collecting optic having a surface located at a selected radius from a center point of light of the LED, the upper collecting optic being configured to direct light from the LED onto each of the groups of frusto-conically shaped TIR facets;
• and
• wherein each flat TIR facet has a face which is a linear segment in section without peaks or depressions and comprises a frustum of a right circular cone formed about a central axis of the optic.

An LED optic comprising:

• an angle matched refracting lens comprising a plurality of refractor facets located along a bottom light emitting surface of the optic and defined by a plurality of circular discontinuities;
• a plurality of facet groups, each comprising a plurality of frusto-conically shaped TIR facets arranged down a side of the optic and positioned to lie beneath an LED, each facet of each facet group being flat so as to diverge light incident thereupon, each facet group of a plurality of frusto-conically shaped facets being configured to direct light upon a corresponding one of the plurality of facets of the angle matched refracting lens;
• a first spherical convex lens adapted to be positioned below the LED;
• an upper collecting optic disposed above and radially surrounding the first spherical convex lens, the upper collecting optic having a surface located at a selected radius from a center point of light of the LED, the upper collecting optic being configured to direct light from the LED onto each of the groups of frusto-conically shaped TIR facets;
• a plurality of parabolic facets located on the side of the optic and below the plurality of groups of frusto-conically shaped TIR facets, the plurality of parabolic facets being parabolic in side section and configured to direct light onto one of the facets of the angle matched refracting lens;
• a lower collecting lens positioned between the upper collecting optic and the first spherical convex lens and configured to project light from the LED onto the angle matched refracting lens;
• a second spherical convex lens disposed beneath the first spherical convex lens, the second spherical convex lens being surrounded by the angle matched refracting lens, the first spherical convex lens and second spherical convex lens being configured to redirect diverging beams of light exiting from a surface of an LED and received by the first spherical convex lens;
• wherein each group of frusto-conically shaped TIR facets contains a plurality of flat TIR facets arrayed linearly adjacent one another down said side, each flat TIR facet of a group having a flat face joining an upper end and a lower end of the facet, wherein a lower end of a first TIR facet of a group lies adjacent the upper end of a second TIR facet of that group positioned beneath it, the respective adjacent ends being defined by a discontinuity which is circular and extends 360 degrees around the optic and is centered on a central axis of the optic and lies in a plane perpendicular to that axis;
• and
• wherein the flat face of each flat TIR facet is a linear segment in section without peaks or depressions and comprises a frustum of a right circular cone centered on the central axis of the optic.