Abstract: A device comprising a plurality of LEDs arranged in a coplanar array, the coplanar array comprising an LED at the center and LEDs positioned radially symmetrically around the LED at the center, and wherein the central axes of the LEDs are arranged to be parallel to each other; a one-piece lens array collimating light from the LEDs, the lens array comprising a plurality of coplanar lens tiles, the coplanar lens tiles comprising a lens tile at the center and lens tiles positioned radially symmetrically around the lens tile at the center, and wherein the central axis of each of the lens tiles is aligned with the central axis of a corresponding LED; and a focusing lens converging the collimated light from the lens array into a single image in a focal plane, wherein the central axis of the focusing lens is aligned with the central axis of the lens array.

Abstract: A light engine for a high intensity light that may be compliant with FAA or ICAO standards is disclosed. The light engine includes a first light emitting module having a light emitting diode mounted in a horizontal plane. A reflector has a reflective surface in perpendicular relation to the light emitting diode. The reflective surface is defined by combining the integrals of a required beam emission specification with the integrals of the light emitting diode. The resulting reflective curve is modified with focal length and curve based on horizontal plane position variables relative to the light emitting diode around an azimuth angle.

Abstract: A system for holding an optical rod, contains an optical mount having a hole traversing throughout a body of the optical mount, wherein the optical mount is a c-shaped collar clamp. The system also contains an optical rod having a circumferential area and a split sleeve encompassing the optical rod circumferential area for at least a portion of the axial length of the optical rod. The split sleeve and optical rod are inserted within the optical mount hole, and the split sleeve contains an inner surface and an outer surface, where material of the split sleeve does not conform intimately with the optical rod so as to maintain total internal reflection conditions.

Abstract: A high intensity LED based lighting array for use in an obstruction light with efficient uniform light output is disclosed. The high intensity LED based lighting array has a first concentric ring having a plurality of reflectors and light emitting diodes. The concentric ring has a planar surface mounting each of the plurality of reflectors in perpendicular relation to a respective one of the plurality of light emitting diodes. At least some of the first plurality of reflectors are adjustable relative to the position of the respective light emitting diode to produce a precise beam pattern from the light emitting diode.

Abstract: A high intensity LED based lighting array for use in an obstruction light with efficient uniform light output is disclosed. The high intensity LED based lighting array has a ring assembly having a plurality of reflectors and light emitting diodes. The ring assembly has a planar surface mounting each of the plurality of primary reflectors in perpendicular relation to a respective one of the plurality of light emitting diodes. A secondary diffuser is positioned on the ring to mix light from the light emitting diodes to create a uniform light emission in a range of azimuth angles.

Abstract: A light guide for interfacing between a light source having a light emitting surface with a first shape and a light receiver with a light receiving surface of a second shape. The light guide has a light emitting end having a first shape of substantially the same size as the first shape of the light emitting surface. A light receiving end has a second shape of substantially the same size as the second shape of the light receiving surface. A free form body between the light emitting end and the light receiving end causes a transition between the first and second shape.

Abstract: An LED light source is disclosed that is configured to be retrofit to an existing lamp fixture. The existing lamp fixture is of the type including a ballast housing for providing electrical power. The retrofit assembly includes a central support connectable to the ballast housing. A circuit board is mounted to the support. The circuit board includes one or more LEDs. A dome is mounted to the support and covers the LEDs. A circumferential heat sink is mounted around the support and extends radially beyond the ballast housing to carry heat directly away from the circuit board and support.

Abstract: A heat sink for use with a high output LED light source is disclosed. The heat sink is used with an LED and conical reflector. The heat sink has a cylindrical back end holding the light emitting diode. The heat sink includes a conically shaped wall having an inner and outer surface and an open front end. The open front end has a rim with notches. The reflector has a front flat surface with arms which are fixed in the notches with a fastener. The heat sink includes a plurality of slits formed on the inner and outer surfaces extending between the back and front ends. A plurality of vanes extend radially from the inner surface. The heat sink is fabricated from a thermally conductive material. The conical shape of the heat sink, the slits and vanes increases exposed surface area to assist in dissipating heat generated from the LED.