# US 10,374,720 B2 · Light guide arrangement for a mobile communications device for optical data transmission, mobile communications device and method for optical data transmission > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,374,720 B2 - Document ID: US10374720B2 - Status: Granted - Kind: B2 - Application number: 15/989,234 - Filed: 2018-05-25 - Published: 2018-12-06 - Granted: 2019-08-06 - Earliest claimed: 2017-05-31 - Assignees: OSRAM GmbH - Applicants: Osram GmbH - Inventors: Gerhard Maierbacher; Bernhard Siessegger; Markus Jung - Web page: https://patentgrep.com/patent/US10374720B2 ## CPC - H04B 10/501: {Structural aspects} - G02B 6/32: having lens focusing means {positioned between opposed fibre ends (with lens being an integral part of the single fibre end G02B6/262)} - H04B 10/1143: {Bidirectional transmission} - H04B 10/1149: {Arrangements for indoor wireless networking of information} - H04B 10/116: Visible light communication - H04B 10/25891: {Transmission components (H04B10/40 takes precedence)} - H04B: TRANSMISSION - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS ## Abstract A light guide arrangement for a mobile communications device for optical data transmission by an optoelectronic interface component of the communications device is provided. The light guide arrangement includes a light guide body with a greatest extent in the principal light guiding direction, a first optical coupling member for coupling the optoelectronic interface component to the light guide body, a second optical coupling member with a first lens element that has a first optical axis transverse to the principal light guiding direction and with a first optical deflection element arranged along the first optical axis, and a third optical coupling member with a second lens element that has a second optical axis transverse to the principal light guiding direction and with a second optical deflection element arranged along the second optical axis. The second optical axis differs from the first optical axis. ## Claims ### Claim 1 A light guide arrangement for a mobile communications device for optical data transmission by an optoelectronic interface component of the communications device, the light guide arrangement comprising: a light guide body with a greatest extent in the principal light guiding direction; a first optical coupling member for coupling the optoelectronic interface component to the light guide body; a second optical coupling member with a first lens element that has a first optical axis transverse to the principal light guiding direction and with a first optical deflection element arranged along the first optical axis; and a third optical coupling member with a second lens element that has a second optical axis transverse to the principal light guiding direction and with a second optical deflection element arranged along the second optical axis; wherein the second optical axis differs from the first optical axis. ### Claim 2 (depends on 1) The light guide arrangement of claim 1, wherein the angle between the first optical axis and the second optical axis is greater than a first offset angle that is 50 percent of the arithmetic mean of a first aperture angle and a second aperture angle or 50 percent of the smaller value of the two values of the first aperture angle and second aperture angle; wherein the first aperture angle is determined by the first lens element in cooperation with the first optical deflection element; and wherein the second aperture angle is determined by the second lens element in cooperation with the second optical deflection element. ### Claim 3 (depends on 1) The light guide arrangement of claim 1, wherein the angle between the first optical axis and the second optical axis is less than a second offset angle that is 90 percent of the arithmetic mean of a first aperture angle and a second aperture angle or 90 percent of the smaller value of the two values of the first aperture angle and second aperture angle; wherein the first aperture angle is determined by the first lens element in cooperation with the first optical deflection element; and wherein the second aperture angle is determined by the second lens element in cooperation with the second optical deflection element. ### Claim 4 (depends on 1) The light guide arrangement of claim 1, wherein a fourth optical coupling member with a third lens element that has a third optical axis transverse to the principal light guiding direction and with a third optical deflection element arranged along the third optical axis; wherein the third optical axis differs from the first optical axis and the second optical axis. ### Claim 5 (depends on 1) The light guide arrangement of claim 1, wherein the light guide body has the form of a bar that is at least one of curved along the principal light guiding direction or angled one or more times. ### Claim 6 (depends on 1) The light guide arrangement of claim 1, wherein the light guide body has transverse to the principal light guiding direction a profile with at least two edges that are inclined against one another; wherein the first lens element is arranged at a first surface of the light guide body that is co-determined by a first edge of the at least two edges; and wherein the second lens element is arranged at a second surface of the light guide body that is co-determined by a second edge of the at least two edges. ### Claim 7 (depends on 1) The light guide arrangement of claim 1, wherein the first optical axis is aligned along the normal to a surface portion on the side of the light guide body facing the first lens element. ### Claim 8 (depends on 1) The light guide arrangement of claim 1, wherein the light guide body is produced integrally together with the first optical coupling member. ### Claim 9 (depends on 8) The light guide arrangement of claim 8, wherein the light guide body is produced integrally together with the first optical coupling member by common injection molding of the light guide body and the first optical coupling member. ### Claim 10 (depends on 1) The light guide arrangement of claim 1, wherein the light guide body is produced from flexible material. ### Claim 11 (depends on 10) The light guide arrangement of claim 10, wherein the light guide body is produced from flexible, elastically deformable material. ### Claim 12 (depends on 1) The light guide arrangement of claim 1, wherein the optoelectronic interface component comprises an optoelectronic reception element; wherein the first optical coupling member is designed to guide light from the light guide body from the principal light guiding direction to the optoelectronic reception element. ### Claim 13 (depends on 1) The light guide arrangement of claim 1, wherein the optoelectronic interface component comprises an optoelectronic transmission element; wherein the first optical coupling member is configured to guide light produced by the optoelectronic transmission element into the light guide body in the principal light guiding direction. ### Claim 14 A mobile communications device for outputting at least one of images or sound to a user, the mobile communications device comprising: a light guide arrangement, comprising: a light guide body with a greatest extent in the principal light guiding direction; a first optical coupling member for coupling the optoelectronic interface component to the light guide body; a second optical coupling member with a first lens element that has a first optical axis transverse to the principal light guiding direction and with a first optical deflection element arranged along the first optical axis; and a third optical coupling member with a second lens element that has a second optical axis transverse to the principal light guiding direction and with a second optical deflection element arranged along the second optical axis; wherein the second optical axis differs from the first optical axis; wherein the communications device has an optical data interface that is coupled to the light guide body by the first optical coupling member. ### Claim 15 (depends on 14) The mobile communications device of claim 14, wherein the mobile communications device is embodied as a device selected from a group consisting of: a visual output device to be worn on the head; a cellular telephone; a mobile computer; and a headphone. ### Claim 16 (depends on 14) The mobile communications device of claim 14, wherein the mobile communications device is designed to capture an acoustic signal from the surroundings of the communications device and to transmit an audio signal generated from the acoustic signal via the optical data interface. ### Claim 17 (depends on 14) The mobile communications device of claim 14, wherein the mobile communications device is embodied as a pair of video glasses or smartglasses for presenting augmented reality. ### Claim 18 A protective sleeve for a cellular telephone, comprising: a light guide arrangement, comprising: a light guide body with a greatest extent in the principal light guiding direction; a first optical coupling member for coupling the optoelectronic interface component to the light guide body; a second optical coupling member with a first lens element that has a first optical axis transverse to the principal light guiding direction and with a first optical deflection element arranged along the first optical axis; and a third optical coupling member with a second lens element that has a second optical axis transverse to the principal light guiding direction and with a second optical deflection element arranged along the second optical axis; wherein the second optical axis differs from the first optical axis. ### Claim 19 A communications system, comprising: a mobile communications device, comprising: a light guide arrangement, comprising: a light guide body with a greatest extent in the principal light guiding direction; a first optical coupling member for coupling the optoelectronic interface component to the light guide body; a second optical coupling member with a first lens element that has a first optical axis transverse to the principal light guiding direction and with a first optical deflection element arranged along the first optical axis; and a third optical coupling member with a second lens element that has a second optical axis transverse to the principal light guiding direction and with a second optical deflection element arranged along the second optical axis; wherein the second optical axis differs from the first optical axis; wherein the communications device has an optical data interface that is coupled to the light guide body by the first optical coupling member; and a remote station, which is designed to set up an optical communications link to the mobile communications device. ### Claim 20 (depends on 19) The communications system of claim 19, wherein the remote station is a stationary base station.