Optical waveguide film with mark for positioning and method for producing the same
AssigneeFuji Xerox Co., Ltd.
InventorsKeishi Shimizu, Masahiro Igusa, Toshihiko Suzuki, Akira Fujii, Kazutoshi Yatsuda, Shigemi Ohtsu
Life of this patent
Estimating the term…
Abstract
An optical waveguide film includes: an optical waveguide film main body including an optical waveguide core through which light travels and a cladding portion that encloses the optical waveguide core and has a lower refractive index than that of the optical waveguide core; and a marking member that is disposed at least at a portion of a principal surface of the optical waveguide film main body so as to protrude from the principal surface and that includes, at a surface thereof, a groove-shaped mark for positioning.
Claims18
An optical waveguide film comprising:
- an optical waveguide film main body including an optical waveguide core through which light travels and a cladding portion that encloses the optical waveguide core and has a lower refractive index than that of the optical waveguide core;
- and
- a marking member that is disposed at least at a portion of a principal surface of the optical waveguide film main body so as to protrude from the principal surface and that includes, at a surface thereof, a groove-shaped mark for positioning.
A method for producing an optical waveguide film, comprising:
- preparing a laminated material including at least a first cladding layer, a core layer, and a second cladding layer that are layered in this order;
- providing, on at least a portion of a principal surface of the laminated material, a marking member that protrudes from the principal surface;
- cutting the second cladding layer and the core layer so as to form groove portions and so as to form an optical waveguide core through which light travels, and then cutting the marking member to form a mark for positioning;
- and
- forming a third cladding layer in the groove portions so as to enclose the optical waveguide core within the first to third cladding layers.
Dependencies are inferred from the claim text.