Patent ID: 7411735
Filing Date: 2008-08-12
Classification: G02B,G03B

Abstract:
1. An optical system comprising: a light source capable of emitting light, the emitted light comprising one or more substantially collimated discrete light beams; a lenslet array receiving and transmitting the emitted light, each discrete light beam in the emitted light having an intensity hill width at half maximum (FWHM) at the lenslet array that covers at least a portion of a plurality of lenslets in the lenslet array; and an optical element receiving the transmitted light from an input face of the optical element, the optical element homogenizing the received light and transmitting the homogenized light from an output face of the optical element, wherein the optical system has an optical axis, and further wherein a shift of the lenslet array normal to the optical axis by half an outer diameter of a lenslet in the lenslet array changes a uniformity of the homogenized light by less than 5%.