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US 4,359,267 AGranted
Method of assembling a gradient index lens array
AssigneeXerox Corporation
InventorJames J. Appel
Life of this patent
Estimating the term…
Abstract
A plurality of gradient index fibers are assembled into a lens array by first coating each fiber with a light absorbent medium to a desired thickness and then pressing the coated fibers into a final mold. The coating step permits greater inter-fiber distance to be effected for certain applications.
Claims1
A method of forming a gradient index lens array by joining together a plurality of gradient index optical fibers, each fiber separated from adjoining fibers by an inter-fiber spacing d', comprising the steps of:
- coating each of said fibers with a light absorbing material to a thickness .DELTA.d,
- curing said coating to full hardness and pressing said coated fibers into a mold of said light absorbing material until each coated fiber is separated by a distance d equal to d' minus 2 .DELTA.d.
Dependencies are inferred from the claim text.