Lenslet array for beam homogenization

Details Lenslet array for beam homogenization Lenslet array for beam homogenization

2008-07-01

2008-07-01

Mai, Huy K (Department: 2873)

Optical: systems and elements

Single channel simultaneously to or from plural channels

By surface composed of lenticular elements

C359S624000, C359S628000, C351S221000

Reexamination Certificate

active

07394595

ABSTRACT:
Apparatus for homogenizing a laser beam includes a lenslet array. In some embodiments, the lenslets have a negative power. The lenslet array may include from 16 to 36 effective lenslets in some embodiments, or any other suitable number in alternative embodiments. Some embodiments additionally include a re-focusing lens for directing the beamlets onto a target so that the beamlets overlap and the energy distribution is homogenized. In an alternative embodiment, the lenslet array and re-focusing lens are combined in one optic.

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