Method and apparatus for improving image quality of a reduction/enlargement gradient index lens array

摘要

A reduction/enlargement gradient index lens array is modified to improve image quality and exposure at an imaging plane. In one embodiment, a masking element is placed in the optical path so as to permit minimum light transmitted through optical fibers located at the array ends and maximum light transmitted through the array center. In a second embodiment, a field stop is formed within the body of each fiber to accomplish the same end.