Abstract: A lens comprising: a lens body; a total reflection surface provided on an outer side of the lens body, the reflection surface being in the form of a scalelike polyhedron; a recess formed on a bottom side of the lens body at a central region thereof for accommodating a LED, the recess having a side surface and a central surface; a micro lens array formed at the central surface of the recess; and a light-emitting surface provided at a top side of the lens body; wherein a substantially uniform circular light spot is formed by the lens.

Abstract: This invention relates to a secondary optics for the multi-chip LED. It features in that the optics consists of a refraction collimating portion, two total internal reflection (TIR) portions, an emitting surface with a micro lens array, an edge flange and a snap lug for lens assembly. The refraction collimating portion is located on the center of the lens bottom, which has a convex aspheric surface. Around the refraction collimating portion outwards, there are two rounds of TIR prisms, featured in that at least one TIR prism has a flake polyhedral reflection surface. On top of the secondary optics, there is the emitting surface constituted with the micro lens array. The edge flange and the snap lug for lens positioning represent non operational portion and may have any shape. Related to the present invention, the LED used therewith may be a multi-chip or single-chip LED.

Abstract: A secondary optical lens is invented for use in LED wall wash lights. The secondary optical lens includes a concave body that has an outer surface that extends from a base plane to a top plane, the so-called outer surface is comprised with a diamond-texture flake reflection pattern. Furthermore, the secondary optical lens includes a light incidence surface extending upward from the base plane of the concave body, the so-called light incidence surface includes a cylindrical plane of incidence and an aspheric plane of incidence on top of the cylindrical plane of incidence. And there is a light emitting surface at the top plane of the concave body having a sinusoidal waveform stripe-texture.

Abstract: A secondary optical apparatus for a circular light emitting diode (LED) array includes a plurality of LEDs circularly disposed on a plane; and a reflector having an annular reflecting surface oriented above the LEDs such that one portion of the light emitting from the LEDs is reflected by the annular reflecting surface sideward and backward to form a radially outwardly diverging beam having light distribution above and below the plane, and another portion of the light emitting from the LEDs is directed forward to form a forwardly-projecting beam.

Abstract: A lens comprising: a lens body; a total reflection surface provided on an outer side of the lens body, the reflection surface being in the form of a scalelike polyhedron; a recess formed on a bottom side of the lens body at a central region thereof for accommodating a LED, the recess having a side surface and a central surface; a micro lens array formed at the central surface of the recess; and a light-emitting surface provided at a top side of the lens body; wherein a substantially uniform circular light spot is formed by the lens.