Multi-layer polymer lens and method of making same
AssigneeOptiz, Inc.
InventorVage Oganesian
Life of this patent
Estimating the term…
Abstract
A multi-layered lens having a substrate with opposing first and second surfaces. The substrate is formed of a plurality of discrete polymer layers. A cavity is formed into the first surface and is defined by a non-planar cavity surface that acts as a lens surface. The cavity extends into and exposes each of the plurality of polymer layers. The compositions of the polymer layers can vary to provide optimized focal properties. Alignment marks in the form of cavities or protrusions can be formed at the first surface or the second surface, so that multiple lenses can be stacked together in an aligned manner to form a stacked lens assembly.
Claims32
A lens, comprising:
- a substrate having opposing first and second surfaces, wherein the substrate is formed of a plurality of discrete polymer layers;
- and
- a cavity formed into the first surface and including a non-planar cavity surface in the substrate, wherein the cavity extends into each of the plurality of polymer layers.
A method of forming a lens, comprising:
- forming a first polymer layer;
- forming a first cavity into a top surface of the first polymer layer;
- forming a second polymer layer on the top surface of the first polymer layer;
- and
- forming a second cavity into a top surface of the second polymer layer that extends through the second polymer layer to the first cavity;
- wherein the first and second cavities together include a non-planar cavity surface.
A method of forming a lens, comprising:
- forming a first polymer layer;
- forming a first cavity into a top surface of the first polymer layer;
- altering a shape of a sidewall of the first cavity;
- forming a second polymer layer on the top surface of the first polymer layer;
- forming a second cavity into a top surface of the second polymer layer;
- and
- altering a shape of a sidewall of the second cavity;
- wherein the second cavity includes a first non-planar cavity surface.
A lens assembly, comprising:
- a plurality of lenses each comprising:
- a substrate having opposing first and second surfaces and an outer edge, wherein the substrate is formed of a plurality of discrete polymer layers, and
- a cavity formed into the first surface and including a non-planar cavity surface in the substrate, wherein the cavity extends into each of the plurality of polymer layers;
- wherein the plurality of lenses are stacked together such that adjacent ones of the plurality of lenses are affixed to each other by a bonding material;
- and
- a layer of material that extends around and between the outer edges of the substrates.
Dependencies are inferred from the claim text.