Plastic and nonmetallic article shaping or treating: processes – Optical article shaping or treating – Optical fiber – waveguide – or preform
Patent
1993-11-08
1995-10-31
Vargot, Mathieu D.
Plastic and nonmetallic article shaping or treating: processes
Optical article shaping or treating
Optical fiber, waveguide, or preform
264 138, 264 26, 362 32, 385146, B29D 1100
Patent
active
054627001
ABSTRACT:
The present invention is directed to a process for making an array of tapered photopolymerized waveguides. A photomask having opaque and transparent regions is placed in substantial contact with a substrate having a substantially uniform thickness of photopolymerizable mixture thereon. The photopolymerizable mixture is then exposed through the transparent regions of the photomask to substantially collimated actinic radiation for a time sufficient to form an array of tapered photopolymerized waveguides. The photomask and photopolymerizable mixture which was not substantially polymerized by the substantially collimated actinic radiation are then removed from the substrate. The tapered waveguides are useful as a display means in direct view devices and projection display devices.
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Beeson Karl W.
Ferm Paul M.
McFarland Michael J.
Zimmerman Scott M.
Allied-Signal Inc.
Brown Melanie L.
Criss Roger H.
Vargot Mathieu D.
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