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US 10,976,540 B2Granted
Microstructured fiber optic oscillator and waveguide for fiber scanner
AssigneeMagic Leap, Inc.
InventorsTimothy Mark Dalrymple, Clinton Carlisle, Jason Schaefer, Andrew C. Duenner, Vaibhav Mathur
Life of this patent
Estimating the term…
Abstract
Described are optical fibers and scanning fiber displays comprising optical fibers. The disclosed optical fibers include a plurality of mass adjustment regions, such as gas-filled regions, positioned between a central waveguiding element and an outer periphery for reducing a mass of the optical fiber as compared to an optical fiber lacking the plurality of mass adjustment regions.
Claims20
An optical fiber comprising:
- a waveguiding element extending along an axis;
- a mechanical region surrounding the waveguiding element, wherein the mechanical region is positioned between the waveguiding element and an outer periphery, and wherein the mechanical region comprises a first material having a first density;
- and
- a plurality of mass adjustment regions positioned within the mechanical region, wherein the plurality of mass adjustment regions comprise a second material having a second density less than the first density, wherein the plurality of mass adjustment regions are arranged within the mechanical region such that the optical fiber exhibits a percent difference between perpendicular moments of inertia of about 0.4% or less.
1 more element
A scanning fiber display comprising:
- an optical fiber, wherein the optical fiber includes
- a waveguiding element extending along an axis;
- a mechanical region surrounding the waveguiding element, wherein the mechanical region is positioned between the waveguiding element and an outer periphery, and wherein the mechanical region comprises a first material having a first density;
- and
- a plurality of mass adjustment regions positioned within the mechanical region, wherein the plurality of mass adjustment regions comprise a second material having a second density less than the first density, wherein the plurality of mass adjustment regions are arranged within the mechanical region such that the optical fiber exhibits a percent difference between perpendicular moments of inertia of about 0.4% or less;
- and
- an actuator in mechanical contact with the optical fiber, the actuator for inducing an oscillation of the optical fiber.
4 more elements
An optical fiber comprising:
- a waveguiding element extending along an axis;
- a mechanical region surrounding the waveguiding element, wherein the mechanical region is positioned between the waveguiding element and an outer periphery, and wherein the mechanical region comprises a first material;
- and
- a plurality of second moment of area adjustment regions positioned within the mechanical region, wherein the plurality of second moment of area adjustment regions are arranged within the mechanical region such that the optical fiber exhibits a percent difference between perpendicular moments of inertia of about 0.4% or less, and wherein the plurality of second moment of area adjustment regions comprise a second material for generating a second moment of area of the mechanical region that is different from that of a comparable optical fiber comprising a corresponding mechanical region that is identical to the mechanical region except that the corresponding mechanical region does not include the plurality of second moment of area adjustment regions positioned between a corresponding waveguiding element and a corresponding outer periphery of the comparable optical fiber.
1 more element
Dependencies are inferred from the claim text.