Patent ID: 7758208

Claim:
An optical assembly for producing light having improved collimation and color uniformity, comprising: a light source comprising multiple light emitters arranged on a substrate; an inner spline wall adjacent the substrate and enclosing the light source, wherein the inner spline wall is light transmissive; an inner collimation lens positioned at a top of the inner spline wall, wherein the inner collimation lens collimates and redistributes light from the inner spline wall to improve color uniformity; a TIR collimation lens having an upwardly-concave shape and oriented having a first axis perpendicular to a horizontal plane containing the light source, a bottom of the TIR collimation lens adjacent to the substrate and forming a TIR attachment contour enclosing the inner spline wall, and a top of the TIR collimation lens extending beyond the inner collimation lens, wherein the TIR collimation lens includes a total internal reflective surface for collimating light from the inner spline wall and inner collimation lens; a primary lenslet array positioned at the top of the TIR collimation lens; a spline profile reflector having a sidewall, an entrance aperture at a bottom of the sidewall, an exit aperture at a top of the sidewall and a reflective inner surface, wherein the entrance aperture is adjacent the top of the TIR collimation lens; a secondary collimation lens adjacent a top of the spline profile reflector; and a secondary lenslet array adjacent the secondary collimation lens.