# US 2019/0171013 A1 · Method and apparatus for transporting optical images > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0171013 A1 - Document ID: US20190171013A1 - Status: Published application - Kind: A1 - Application number: 15/996,505 - Filed: 2018-06-03 - Published: 2019-06-06 - Earliest claimed: 2016-12-08 - Inventors: Darwin Hu - Web page: https://patentgrep.com/patent/US20190171013A1 ## CPC - G02B 27/0172: {characterised by optical features} - G02B 6/0006: {Coupling light into the fibre (in general G02B6/4298)} - G02B 6/0008: {the light being emitted at the end of the fibre} - G02B 6/003: {Lens or lenticular sheet or layer} - G02B 6/0035: {provided on the surface of the light guide or in the bulk of it} - G02B 6/4204: {the coupling comprising intermediate optical elements, e.g. lenses, holograms (encapsulated active devices H01S5/02208)} - G02B 27/0093: {with means for monitoring data relating to the user, e.g. head-tracking, eye-tracking} - G06F 1/163: {Wearable computers, e.g. on a belt} - G06F 3/011: {Arrangements for interaction with the human body, e.g. for user immersion in virtual reality (blind teaching G09B21/00)} - G06F 3/013: {Eye tracking input arrangements (G06F3/015 takes precedence)} - G09G 5/00: Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators (image data processing or generation, in general G06T) - G02B 3/00: Simple or compound lenses - G02B 3/14: of variable focal length - G02B 2027/011: {comprising device for correcting geometrical aberrations, distortion} - G02B 2027/0125: {Field-of-view increase by wavefront division} - G02B 2027/0138: {comprising image capture systems, e.g. camera} - G02B 2027/014: {comprising information/image processing systems} - G02B 2027/0178: {Eyeglass type (eyeglass details G02C)} - G02B 2027/0187: {slaved to motion of at least a part of the body of the user, e.g. head, eye} - G09G 2354/00: Aspects of interface with display user - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00) ## Abstract Architecture and designs of wearable display devices are described. According to one aspect of the present invention, at least one optical conduit is embedded in or integrated with a temple of the wearable display device. The optical conduit is used to transport an optical image from one end to another end, where the optical image is generated in an image source (e.g., microdisplay) in accordance with image data. The microdisplay is powered and receives the image data and control signals via an active optical cable. ## Claims ### Claim 1 A method for transporting an optical image, the method comprising: receiving the optical image from an optical cube, wherein the optical image is in a reversed aspect of ratio, the optical cube is attached with a microdisplay device and a light source, the optical image is formed by shining illumination from the light source onto the microdisplay device; projecting the optical image into an optical conduit, wherein the conduit includes an array of optical fibers, and is physically rotated by 90 degrees; rotating the optical image 90 degrees by transporting the optical image through the optical conduit by total internal reflections within the fibers; receiving the optical image in a normalized aspect of ratio before projecting the optical image into an integrated lens for view therein by a viewer. ### Claim 2 (depends on 1) The method as recited in claim 1, wherein the integrated lens comprises: a prism receiving the optical image projected onto a first edge of the prism, the optical image being seen by a wearer from a second edge of the prism; and an optical correcting lens integrated with the prism to correct an optical path coming out from the prism. ### Claim 3 (depends on 1) The method as recited in claim 1, wherein said projecting the optical image into an optical conduit comprises: focusing by a focal lens the optical image from the optical block onto one end of the optical conduit. ### Claim 4 (depends on 3) The method as recited in claim 3, further comprising: receiving power to energize the microdisplay device via an active optical cable including an array of optical fibers and at least two wires, one for the power and the other for ground. ### Claim 5 (depends on 4) The method as recited in claim 4, further comprising: receiving various control signals from the optical fibers in the active optical cable. ### Claim 6 (depends on 5) The method as recited in claim 5, wherein the active optical cable includes a first end and a second end, both of the first and second ends are coupled with the optical fibers and at least two wires, the first end converts electronic signals to light beams that are travelled in the optical fibers, the second end converts the light beams back to the electronic signals. ### Claim 7 A method for transporting an optical image, the method comprising: receiving the optical image from an optical cube, wherein the optical cube is attached with a microdisplay device and a light source, the optical image is formed by shining illumination from the light source onto the microdisplay device; shrinking the optical image by projecting the optical image through an optically shrinking lens; projecting the shrunk optical image into an optical conduit, wherein the conduit includes an array of optical fibers; expanding the shrunk optical image back to the optical image by projecting the shrunk optical image into an optically expanding lens; projecting the optical image into an integrated lens for view therein by a viewer. ### Claim 8 (depends on 7) The method as recited in claim 7, further comprising: receiving power to energize the microdisplay device via an active optical cable including an array of optical fibers and at least two wires, one for the power and the other for ground. ### Claim 9 (depends on 8) The method as recited in claim 8, further comprising: receiving various control signals from the optical fibers in the active optical cable. ### Claim 10 (depends on 9) The method as recited in claim 9, wherein the active optical cable includes a first end and a second end, both of the first and second ends are coupled with the optical fibers and at least two wires, the first end converts electronic signals to light beams that are travelled in the optical fibers, the second end converts the light beams back to the electronic signals.