LED devices for offset wide beam generation

An illumination system comprising:

• an optic comprising:
• an inner surface defining a cavity and comprising a refractive surface region;
• and
• an outer surface opposite the inner surface;
• an LED disposed substantially in the cavity and having an axis extending through the inner surface and the outer surface, wherein an imaginary plane comprises the axis, with the refractive surface region disposed on a first side of the imaginary plane;
• and
• a reflector disposed in the cavity on a second side of the imaginary plane and oriented to reflect light emitted by the LED so that substantially all the reflected light crosses the imaginary plane while propagating in the cavity towards the refractive surface region.

An illumination system comprising:

• an optic comprising:
• a concave refractive surface forming a cavity;
• and
• a convex refractive surface opposite the concave refractive surface;
• an LED package comprising a dome disposed in the cavity with a gap between the dome and the concave refractive surface;
• and
• a reflector disposed in the cavity and oriented to redirect onto the concave refractive surface substantially all rays emitted from the dome that are incident upon the reflector.