Method for molding light extraction structures onto a light guid

Details Method for molding light extraction structures onto a light guid Method for molding light extraction structures onto a light guid

1998-12-02

2000-03-07

Vargot, Mathieu D.

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Optical fiber, waveguide, or preform

264 127, 264 17, 264166, 264167, 4271632, B29D 1100

Patent

active

060336048

ABSTRACT:
A method of molding an illumination device using an open mold is provided. The method allows for the addition of light extraction structures to a prefabricated light guide using a curable material. A mold containing the extraction structures is first provided. Curable molding material and the prefabricated light guide are placed into the mold, and an overlay comprising light extraction structures is cured onto the light guide, providing a functional illumination device.

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USSN 09/026836, entitled "Method and Apparatus for Seamless Microreplication Using an Expandable Mold", filed Feb. 20, 1998.
USSN 08/755767, entitled "Front Light Extraction Film for Light Guiding Systems and Method of Manufacturing", filed Nov. 21, 1996 (allowed).
USSN 08/590746, entitled "Conspicuity Marking System Including Light Guide and Retroreflective Structure", filed Jan. 24, 1996 (allowed).

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