Color-selective waveguides for augmented reality/mixed reality applications
AssigneeMagic Leap, Inc.
InventorsSharad D. Bhagat, David Carl Jurbergs, Ryan Jason Ong, Christophe Peroz, Chieh Chang, Ling Li
Life of this patent
Estimating the term…
Abstract
Color-selective waveguides, methods for fabricating color-selective waveguides, and augmented reality (AR)/mixed reality (MR) applications including color-selective waveguides are described. The color-selective waveguides can advantageously reduce or block stray light entering a waveguide (e.g., red, green, or blue waveguide), thereby reducing or eliminating back-reflection or back-scattering into the eyepiece.
Claims36
A doped polymer waveguide comprising:
- one or more patterned regions;
- and
- one or more unpatterned regions,
- wherein the one or more patterned regions and the one or more unpatterned regions comprise a doped polymer, the doped polymer comprising a chromatic component selected to absorb at least 90% of one or more of red light, green light, and blue light traveling through the polymer waveguide, and wherein the doped polymer is a homogeneous material.
A method of forming a doped polymer waveguide, the method comprising:
- dispensing a polymerizable material on a first mold, wherein the polymerizable material comprises a resin and a chromatic component;
- contacting the polymerizable material with a second mold, wherein the first mold, the second mold, or both comprises protrusions, recessions, or both;
- polymerizing the polymerizable material to yield a patterned polymer layer between the first mold and the second mold;
- and
- separating the patterned polymer layer from the first mold and the second mold to yield the doped polymer waveguide, wherein the chromatic component is selected to absorb red light, green light, blue light, or any combination thereof, and wherein the polymerizable material is a homogeneous mixture.
A doped polymer waveguide comprising:
- one or more patterned regions;
- and
- one or more unpatterned regions,
- wherein the one or more patterned regions and the one or more unpatterned regions comprise a doped polymer, the doped polymer comprising a chromatic component selected to absorb at least 90% of one or more of red light, green light, and blue light traveling through the polymer waveguide, and wherein a total internal reflection path length of the doped polymer waveguide is in a range of about 2 cm to about 15 cm.
A method of forming a doped polymer waveguide, the method comprising:
- dispensing a polymerizable material on a first mold, wherein the polymerizable material comprises a resin and a chromatic component;
- contacting the polymerizable material with a second mold, wherein the first mold, the second mold, or both comprises protrusions, recessions, or both;
- polymerizing the polymerizable material to yield a patterned polymer layer between the first mold and the second mold;
- and
- separating the patterned polymer layer from the first mold and the second mold to yield the doped polymer waveguide, wherein the chromatic component is selected to absorb red light, green light, blue light, or any combination thereof, and wherein a total internal reflection path length of the doped polymer waveguide is in a range of about 2 cm to about 15 cm.
Dependencies are inferred from the claim text.