Gradient index lens array having reduction properties

Details Gradient index lens array having reduction properties Gradient index lens array having reduction properties

G - Physics

02

B

88/97.74

G02B 3/00 (2006.01) G02B 6/08 (2006.01)

Patent

CA 1164701

ABSTRACT A gradient index lens array is provided with reduction and enlargement capabilities. Gradient index fibers are arranged in single row or double row (bundled) configuration with fibers increasingly departing from the perpendicular condition at the center of the array relative to object and image planes in a characteristic fan-like manner. Fiber lengths are adjusted to compensate for changes in total conjugate which occur because of the progressive tilting of the axes of the individual fiber lenses. This is achieved, in one embodiment, by grinding the faces of a lens array into a convex configuration.

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