Optical elements with internal optical features and methods of fabricating same
AssigneeCree LED Lighting Solutions, Inc.
InventorsGerald H. Negley, Paul Kenneth Pickard
Life of this patent
Estimating the term…
Abstract
An optical element, comprising a substrate and at least one optical film. The substrate is at least partially light-transmissive. The optical film comprises at least a first optical feature and is positioned on a contact surface of the substrate. Also, a lighting device comprising at least one solid state light emitter and such an optical element. Also, methods for making an optical element by molding (e.g., film insert molding), bonding or laminating.
Claims73
An optical element, comprising:
- a substrate, said substrate being at least partially light-transmissive, said substrate comprising a contact surface;
- at least one optical film, said optical film being positioned on said contact surface of said substrate, said optical film comprising at least a first optical feature.
A method of making an optical element, comprising:
- positioning within a mold at least one optical film, said optical film comprising at least a first optical feature;
- feeding into said mold at least one flowable substrate material;
- solidifying said at least one flowable substrate material to form a substrate, said substrate being at least partially light-transmissive and comprising a contact surface which is in contact with said optical film.
A method of making an optical element, comprising:
- applying at least one adhesive to at least one of an optical film and a substrate;
- and
- bringing said optical film and said substrate together so that said optical film and said substrate are in contact with each other and at least a portion of said adhesive is positioned between said optical film and said substrate,
- said optical film comprising at least a first optical feature,
- said substrate being at least partially light-transmissive.
A method of making an optical element, comprising:
- laminating an optical film to a substrate such that said optical film is in contact with said substrate,
- said optical film comprising at least a first optical feature,
- said substrate being at least partially light-transmissive.
Dependencies are inferred from the claim text.