An optical system and a projection system incorporating same are
disclosed. The optical system includes a light source that is capable of
emitting light. The emitted light includes one or more substantially
collimated discrete light beams. The optical system further includes a
lenslet array for receiving and transmitting the emitted light. Each
discrete light beam in the emitted light has an intensity full width at
half maximum (FWHM) at the lenslet array that covers at least a portion
of a plurality of lenslets in the lenslet array. The optical system
further includes an optical element for receiving the transmitted light
from an input face of the optical element. The optical element
homogenizes the received light and transmits the homogenized light from
an output face of the optical element.