Back to results
US 2009/0153959 A1Published application
1d and 2d composite lenticular films and fabrication methods
AssigneeThe Hong Kong Polytechnic University
InventorsXiao-ming Tao, Xiaohong Sun
Life of this patent
Estimating the term…
Abstract
A composite lenticular film includes a first layer having a first refractive index, and a second layer having a second refractive index less than the first refractive index. The second layer is integrally attached to the first layer. The first layer has at least one row of protruding lenses.
Claims25
A composite lenticular film, comprising:
- a first layer having a first refractive index;
- and
- a second layer having a second refractive index less than said first refractive index, said second layer integrally attached to said first layer,
- wherein said first layer comprises at least one row of protruding lenses.
1 more element
A composite lenticular film, comprising:
- a sheet of Gradient Refractive Index lenses,
- wherein said sheet has a thickness equal to the focal length of the Gradient Refractive Index lenses.
A method of making a composite lenticular film, comprising:
- mixing a UV sensitive ink with high refractive index nanoparticles to form a high refractive glue;
- and
- digitally printing said glue on a low refractive index plastic film.
A method of making a composite lenticular film, comprising:
- obtaining a mold comprising a concave lens sheet;
- filling a solution of a polymer nanocomposite into said mold;
- and
- solidifying said solution to form a convex lens sheet.
1 more element
Dependencies are inferred from the claim text.