# US 11,442,212 B2 · Optical fiber illumination apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,442,212 B2 - Document ID: US11442212B2 - Status: Granted - Kind: B2 - Application number: 17/095,237 - Filed: 2020-11-11 - Published: 2022-01-27 - Granted: 2022-09-13 - Earliest claimed: 2020-07-21 - Assignees: Hyundai Motor Company; Kia Motors Corporation - Applicants: Hyundai Motor Company; Kia Motors Corporation - Inventors: Byoung Suk Ahn; Ki Hong Lee; Jung Wook Lim; Seung Sik Han; Ji Yeon Kim; Jin Hee Yu - Web page: https://patentgrep.com/patent/US11442212B2 ## CPC - F21S 43/237: rod-shaped - G02B 6/001: {the light being emitted along at least a portion of the lateral surface of the fibre} - F21S 43/14: Light emitting diodes [LED] - F21S 43/245: emitting light from one or more of its major surfaces - F21S 43/246: {having two or more output branches} - F21S 43/252: {Two or more successive light guides} - F21S 43/26: {Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255} - F21S 43/2605: {Refractors} - F21S 43/27: Attachment thereof - G02B 6/0006: {Coupling light into the fibre (in general G02B6/4298)} - G02B 6/4257: {having a supporting carrier or a mounting substrate or a mounting plate (G02B6/3648 takes precedence)} - F21V 2200/10: of light guides of the optical fibres type - G02B 6/0008: {the light being emitted at the end of the fibre} - G02B 6/04: formed by bundles of fibres (G02B6/24 takes precedence) - G02B 6/3861: {Adhesive bonding (adhesives in general C09J)} - G02B 6/4206: {Optical features (G02B6/4207, G02B6/421 take precedence)} - F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR ## Abstract Disclosed is an optical fiber illumination apparatus configured for ensuring high light efficiency and uniform luminosity when displaying an illumination pattern with flexible optical fibers in fiber optic lighting. ## Claims ### Claim 1 An optical fiber illumination apparatus comprising: a light source module including a light source configured to emit light, and a group of optical fibers configured to transmit the light when the light emitted from the light source is incident onto the optical fibers; a guide unit extending in a longitudinal direction of the optical fiber illumination apparatus and configured to fix arrangement and positions of the optical fibers so that each of the optical fibers extends in the longitudinal direction and a predetermined illumination pattern is implemented by the group of optical fibers; and a fixing unit mounted between the light source module and the guide unit and configured to align the optical fibers wound around a circumferential external surface of the guide unit so that the optical fibers are spaced from each other. ### Claim 2 (depends on 1) The optical fiber illumination apparatus according to claim 1, wherein the light source module includes: a bracket on a first side of which the light source is installed; and a ferrule disposed on a second side of the bracket to face the light source so that an end portion of each of the optical fibers is sheathed into the ferrule to be fixed thereto. ### Claim 3 (depends on 2) The optical fiber illumination apparatus according to claim 2, wherein the bracket includes a first bracket portion and a second bracket portion, wherein each of the first and second bracket portions includes a first installation end portion that the light source is disposed and a second installation end portion which is bent from the first installation end portion and on which the ferrule is disposed, wherein when the first and second bracket portions are assembled to form the bracket, the second installation end portions of the first and second bracket portions are coupled to each other while surrounding and fixing the ferrule, and wherein the light source is disposed on the first installation end portion of the first and second bracket portions to face the ferrule. ### Claim 4 (depends on 2) The optical fiber illumination apparatus according to claim 2, wherein the ferrule has a cavity to allow the optical fibers to pass therethrough, and a through-hole is formed in a flank portion of the ferrule so that the through hole fluidically communicates with the cavity. ### Claim 5 (depends on 4) The optical fiber illumination apparatus according to claim 4, wherein, in a state in which the optical fibers are disposed in the cavity of the ferrule, the optical fibers are fixed in the cavity of the ferrule by an adhesive injected into the cavity through the through-hole. ### Claim 6 (depends on 1) The optical fiber illumination apparatus according to claim 1, wherein the guide unit has a resting portion on which the optical fibers are positioned and fixed in a region where the predetermined illumination pattern is to be displayed. ### Claim 7 (depends on 6) The optical fiber illumination apparatus according to claim 6, wherein the resting portion includes a plurality of protrusions, and the optical fibers are disposed between each of the plurality of protrusions. ### Claim 8 (depends on 1) The optical fiber illumination apparatus according to claim 1, wherein the group of optical fibers includes a group of first optical fibers and a group of second optical fibers, wherein the light source module includes a first light source, the group of first optical fibers onto which light emitted from the first light source is incident, a second light source, and the group of second optical fibers onto which light emitted from the second light source is incident, and wherein each of the first optical fibers and each of the second optical fibers are wound around the guide unit in opposite directions to intersect each other. ### Claim 9 (depends on 8) The optical fiber illumination apparatus according to claim 8, wherein the guide unit is provided with a resting portion on which the first optical fibers and the second optical fibers are positioned and fixed in a region where the predetermined illumination pattern is to be displayed. ### Claim 10 (depends on 8) The optical fiber illumination apparatus according to claim 8, wherein the resting portion includes a plurality of fitting protrusions that are arranged side by side and extend in a direction in which the first optical fibers extend, defining accommodation grooves between the fitting protrusions so that the first optical fibers are disposed in respective accommodation grooves. ### Claim 11 (depends on 10) The optical fiber illumination apparatus according to claim 10, wherein each of the plurality of fitting protrusions is provided with a plurality of recesses that are spaced from each other and recessed from the accommodation grooves and in which the second optical fibers are to be disposed, respectively. ### Claim 12 (depends on 11) The optical fiber illumination apparatus according to claim 11, wherein the accommodation groves defined between each of the fitting protrusions and the recesses formed on the fitting protrusions have a depth equal to or greater than a diameter of the first optical fibers, and a height difference between the accommodation grooves and the recesses is equal to the diameter of the first optical fibers. ### Claim 13 (depends on 1) The optical fiber illumination apparatus according to claim 1, wherein the guide unit is mounted with a joint bracket which is disposed in a region where the predetermined illumination pattern is not to be displayed and which is provided with multiple fixing holes into which respective end portions of the optical fibers are inserted. ### Claim 14 (depends on 1) The optical fiber illumination apparatus according to claim 1, wherein the fixing unit includes: a fixing portion coupled to the guide unit and provided with insertion holes into which the optical fibers are respectively inserted; and a cover portion provided to cover the fixing unit in a state in which an end portion of each of the optical fibers is inserted into a corresponding one of the insertion holes. ### Claim 15 (depends on 14) The optical fiber illumination apparatus according to claim 14, wherein the cover portion includes a first cap and a second cap, each being provided with an opening extending in a circumferential direction by a predetermined length so that the optical fibers pass through each opening. ### Claim 16 (depends on 14) The optical fiber illumination apparatus according to claim 14, wherein the fixing unit further includes a light shielding film disposed on the cover portion and configured to prevent light leaking from the optical fibers between the light source module and the fixing unit from being directed toward a receiving end portion of the guide unit. ### Claim 17 (depends on 1) The optical fiber illumination apparatus according to claim 1, wherein lengths of the optical fibers extending from the light source to the fixing unit are equal to each other. ### Claim 18 An optical fiber illumination apparatus including: a fixation bracket having a first end portion and a second end portion spaced apart from each other; a light source module disposed at the first end portion of the fixation bracket and including a light source that emits light and a group of optical fibers that illuminate when the light emitted from the light source is incident onto the optical fibers; a guide unit extending to be connected to the first end portion and the second end portion of the fixation bracket, configured to fix positions of the respective optical fibers, and configured to arrange positions of the optical fibers to form a predetermined illumination pattern; and two fixing units arranged at the first end portion and the second end portion of the fixing bracket, respectively, and configured to fix the optical fibers so that the optical fibers are aligned and spaced from each other. ### Claim 19 (depends on 18) The optical fiber illumination apparatus according to claim 18, wherein the guide unit has a resting portion on which the optical fibers are positioned and fixed in a region where the predetermined illumination pattern is to be displayed, the resting portion including a plurality of protrusions. ### Claim 20 (depends on 18) The optical fiber lighting apparatus according to claim 18, wherein the fixing unit provided at the second end portion of the fixation bracket has a reflective portion for reflecting light at the first end portion thereof, the first end portion being in contact with an end portion of each of the optical fibers.