# US 11,442,227 B2 · Methods and systems for fabrication of shaped fiber elements for scanning fiber displays > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,442,227 B2 - Document ID: US11442227B2 - Status: Granted - Kind: B2 - Application number: 17/076,510 - Filed: 2020-10-21 - Published: 2021-04-29 - Granted: 2022-09-13 - Earliest claimed: 2016-12-22 - Assignees: Magic Leap, Inc. - Applicants: Magic Leap, Inc. - Inventors: Brian T. Schowengerdt; Mathew D. Watson; Charles David Melville - Web page: https://patentgrep.com/patent/US11442227B2 ## CPC - G02B 6/262: {Optical details of coupling light into, or out of, or between fibre ends, e.g. special fibre end shapes or associated optical elements} - C03C 25/68: by etching - G02B 6/0008: {the light being emitted at the end of the fibre} - G02B 6/241: {Light guide terminations} - G02B 6/255: Splicing of light guides, e.g. by fusion or bonding - G02B 26/103: {having movable or deformable optical fibres, light guides or waveguides as scanning elements (light guides per se G02B6/00)} - G02B 6/245: Removing protective coverings of light guides before coupling - G02B 2006/0098: {for scanning} - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - C03C: CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS ## Abstract A fiber optic element of a fiber scanning system includes a motion actuator having longitudinal side members, an internal orifice, a first support region, a central region, and a second support region. The fiber optic element also includes a first fiber optic cable passing through the internal orifice and having a first fiber joint as well as a second fiber optic cable passing through the internal orifice. The second fiber optic cable has a second fiber joint disposed in the central region and spliced to the first fiber joint, a second coupling region, a light delivery region, and a light emission tip. The light delivery region is characterized by a first diameter and the light emission tip is characterized by a second diameter less than the first diameter. ## Claims ### Claim 1 A fiber optic element of a fiber scanning system, the fiber optic element comprising: a fiber optic cable having: an input region; a support region coupled to the input region; and a light emission tip, wherein the support region is characterized by a first diameter and the light emission tip is characterized by a second diameter less than the first diameter, wherein the input region is located further from the light emission tip than the support region; and a motion actuator having: longitudinal side members; an internal orifice disposed between the longitudinal side members; a first region disposed at one end of the motion actuator; a central region; and a second region disposed at an opposing end of the motion actuator; wherein the support region of the fiber optic cable is disposed in the second region of the motion actuator, wherein the input region of the fiber optic cable is disposed within the longitudinal side members and separated from the longitudinal side members by a flexure distance. ### Claim 2 (depends on 1) The fiber optic element of claim 1 wherein the fiber optic cable tapers from the support region to the light emission tip. ### Claim 3 (depends on 1) The fiber optic element of claim 1 wherein the input region is disposed in the central region of the motion actuator. ### Claim 4 (depends on 1) The fiber optic element of claim 1 wherein the support region of the fiber optic cable is in mechanical contact with second region of the motion actuator. ### Claim 5 (depends on 1) The fiber optic element of claim 1 wherein: the fiber optic cable further comprises a second support region coupled to the input region; and the second support region is disposed between the first region of the motion actuator. ### Claim 6 (depends on 5) The fiber optic element of claim 5 wherein: the support region of the fiber optic cable is in mechanical contact with second region of the motion actuator; and the second support region of the fiber optic cable is in mechanical contact with the first region of the motion actuator. ### Claim 7 (depends on 5) The fiber optic element of claim 5 wherein the input region is characterized by a third diameter less than the first diameter, and the second support region is characterized by a fourth diameter greater than the third diameter. ### Claim 8 (depends on 5) The fiber optic element of claim 5 wherein the second support region is characterized by the first diameter. ### Claim 9 (depends on 1) The fiber optic element of claim 1 wherein: the motion actuator comprises a piezoelectric actuator; and the longitudinal side members comprises a first piezoelectric element operable to contract/expand and a second piezoelectric element operable to expand/contract in opposition to the first piezoelectric element. ### Claim 10 (depends on 1) The fiber optic element of claim 1 wherein the internal orifice of the motion actuator is characterized by a cylindrical profile defined by an internal diameter and the support region is characterized by an outside diameter substantially equal to the internal diameter. ### Claim 11 (depends on 10) The fiber optic element of claim 10 wherein: the fiber optic cable further comprises a second support region coupled to the input region; the second support region is disposed between the first region of the motion actuator; and the second support region is characterized by an outside diameter substantially equal to the internal diameter. ### Claim 12 (depends on 1) The fiber optic element of claim 1 wherein the input region is characterized by a third diameter less than the first diameter. ### Claim 13 (depends on 1) The fiber optic element of claim 1 wherein the input region is disposed in the first region of the motion actuator.