# US 11,993,334 B2 · Optical device for a motorcycle headlamp optics > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,993,334 B2 - Document ID: US11993334B2 - Status: Granted - Kind: B2 - Application number: 18/034,987 - Filed: 2021-10-29 - Published: 2024-01-18 - Granted: 2024-05-28 - Earliest claimed: 2020-11-17 - Assignees: ZKW Group GmbH - Applicants: ZKW Group GmbH - Inventors: Jaroslav Kyselica - Web page: https://patentgrep.com/patent/US11993334B2 ## CPC - B62J 6/026: characterised by the structure, e.g. casings - F21S 41/24: Light guides - F21S 41/29: Attachment thereof (for achieving variable light distribution F21S41/63) - F21W 2107/17: for motorcycles - B62J: CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS - F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS - F21W: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS ## Abstract An optical device (10) for a motorcycle headlamp, the optical device (10) comprising: a primary optics (100) having a base body (110) and a plurality of light guiding elements (120) for forming a light distribution in a main direction (X), wherein each light guiding element (120) has a common light output surface (130) having an optically relevant area (131), a holder (300), a cover element (400), which is attachable to the holder (300), wherein the cover element (400) in combination with the holder (300) is configured to fix the position of the primary optics (100) between the holder (300) and the cover element (400), when the cover element (400) is attached to the holder (300), wherein the primary optics (100) comprises a stabilizing structure (200), wherein the stabilizing structure (200) is built as a protrusion projecting from the common light output surface (130) in the main direction (X), wherein the stabilizing structure (200) having a first support surface (210), and wherein the cover element (400) comprises a first counter-support surface (410), wherein the base body (110) of the primary optics (100) comprises a second support surface (140), and wherein the holder (300) comprises a second counter-support surface, wherein the first counter-support surface (410) in combination with the first support surface (210) of the stabilizing structure (200) is configured to stabilize the position of the curved surface of the optically relevant area (131) of the common light output surface (130) of the primary optics (100) when the cover element (400) is attached to the holder (300). ## Claims ### Claim 1 An optical device (10) for a motorcycle headlamp, the optical device (10) comprising: a primary optics (100) having a base body (110) and a plurality of light guiding elements (120) protruding from the base body (110) for forming a predetermined light distribution from light of light sources in a main direction (X), wherein each light guiding element (120) has a light input surface (121), into which light of the light sources can be coupled into the light guiding element (120), and a common light output surface (130) having an optically relevant area (131), which is designed as a curved surface, and a peripheral area (132), which limits the optically relevant area (131) of the common light output surface (130), wherein the curved surface of the optically relevant area (131) is curved along at least two axes, wherein the two axes are orthogonal to the main direction (X), and wherein the two axes are orthogonal to each other; a holder (300), which is arranged on a backside of the primary optics (100), the light guiding elements (120) of the primary optics (100) passing through the holder (300) through an opening area of the holder (300), which opening area is configured to receive the light guiding elements (120) of the primary optics (100) and to hold them in position regarding the light sources; and a cover element (400), which is arranged on a front side of the primary optics (100) facing away from the light guiding elements (120) of the primary optics (100), wherein the cover element (400) is attachable to the holder (300) by means of at least one first engagement element arranged on the cover element (400), which first engagement element is configured to engage with at least one second engagement element arranged on the holder (300), wherein the cover element (400) in combination with the holder (300) is configured to fix the position of the primary optics (100) between the holder (300) and the cover element (400), when the cover element (400) is attached to the holder (300), wherein the primary optics (100) comprises a stabilizing structure (200), wherein the stabilizing structure (200) is built as a protrusion projecting from the common light output surface (130) in the main direction (X), wherein the stabilizing structure (200) has a first support surface (210), and wherein the common light output surface (130) at least partially surrounds the stabilizing structure (200), wherein the cover element (400) comprises a first counter-support surface (410), which follows the form of the first support surface (210) of the stabilizing structure (200), wherein the base body (110) of the primary optics (100) comprises a second support surface (140), which is arranged on the opposite side of the first support surface (210) on the backside of the primary optics (100), and wherein the holder (300) comprises a second counter-support surface, wherein the first counter-support surface (410) in combination with the first support surface (210) of the stabilizing structure (200) is configured to stabilize the position of the curved surface of the optically relevant area (131) of the common light output surface (130) of the primary optics (100) when the cover element (400) is attached to the holder (300), and wherein the cover element (400) presses against the first support surface (210) of the stabilizing structure (200) and the second counter-support surface of the holder (300) presses against the second support surface (140) of the base body (110), when the cover element (400) is attached to the holder (300). ### Claim 2 (depends on 1) The optical device according to claim 1, wherein the first support surface (210) of the stabilizing structure (200) is built as a triangle. ### Claim 3 (depends on 1) The optical device according to claim 1, wherein the stabilizing structure (200) is built as a right triangular prism. ### Claim 4 (depends on 1) The optical device according to claim 1, wherein the plurality of light guiding elements (120) are arranged in at least two areas on the base body (110), which areas are formed as circular sectors. ### Claim 5 (depends on 1) The optical device according to claim 1, wherein the holder (300) is attachable to the base body (110) of the primary optics (100) by means of at least one third engagement element arranged on the holder (300), which third engagement element is configured to engage with at least one fourth engagement element (150) arranged on the base body (110) of the primary optics (100). ### Claim 6 (depends on 5) The optical device according to claim 5, wherein the at least one fourth engagement element (150) is arranged on a side of the base body (110), which faces away from the stabilizing structure (200). ### Claim 7 (depends on 1) The optical device according to claim 1, wherein the cover element (400) is built as a burning glass shade configured to block sun radiation. ### Claim 8 (depends on 1) The optical device according to claim 1, wherein the primary optics (100) are made of a silicone material. ### Claim 9 (depends on 1) The optical device according to claim 1, wherein the cover element (400) comprises two branches which extend from at least one of the first or second counter-support surfaces (410) and substantially follow the peripheral area (132) of the common light output surface (130) of the primary optics (100), wherein the cover element (400) presses against the peripheral area (132) and at least one of the first or second support surfaces (210) when the cover element (400) is attached to the holder (300). ### Claim 10 (depends on 1) The optical device according to claim 1, wherein the stabilizing structure is built as a truncated pyramid structure. ### Claim 11 (depends on 1) The optical device according to claim 1, wherein the cover element (400) having a cavity (420) comprising the first counter-support surface (410), wherein the stabilizing structure (200) is positively insertable in the cavity (420). ### Claim 12 (depends on 11) The optical device according to claim 11, wherein the cover element (400) is built as a 3D molded cover element. ### Claim 13 (depends on 1) The optical device according to claim 1, wherein the cover element (400) has a plate shape, which extends substantially in one plane. ### Claim 14 (depends on 1) A motorcycle headlamp with at least one optical device (10) according to claim 1. ### Claim 15 (depends on 13) The optical device according to claim 13, wherein the one plane is orthogonal to the main direction (X). ### Claim 16 (depends on 1) The optical device according to claim 1, wherein the first support surface (210) is parallel with the second support surface (140) and the first counter-support surface (410). ### Claim 17 An optical device (10) for a motorcycle headlamp, the optical device (10) comprising: a primary optics (100) made of a silicon material and having a base body (110) and a plurality of light guiding elements (120) protruding from the base body (110) for forming a predetermined light distribution from light of light sources in a main direction (X), wherein each light guiding element (120) has a light input surface (121), into which light of the light sources can be coupled into the light guiding element (120), and a common light output surface (130) having an optically relevant area (131), which is designed as a curved surface, and a peripheral area (132), which limits the optically relevant area (131) of the common light output surface (130), wherein the curved surface of the optically relevant area (131) is curved along at least two axes, wherein the two axes are orthogonal to the main direction (X), and wherein the two axes are orthogonal to each other; a holder (300), which is arranged on a backside of the primary optics (100), the light guiding elements (120) of the primary optics (100) passing through the holder (300) through an opening area of the holder (300), which opening area is configured to receive the light guiding elements (120) of the primary optics (100) and to hold them in position regarding the light sources; and a cover element (400), which is arranged on a front side of the primary optics (100) facing away from the light guiding elements (120) of the primary optics (100), wherein the cover element (400) is attachable to the holder (300) by means of at least one first engagement element arranged on the cover element (400), which first engagement element is configured to engage with at least one second engagement element arranged on the holder (300), wherein the cover element (400) in combination with the holder (300) is configured to fix the position of the primary optics (100) between the holder (300) and the cover element (400), when the cover element (400) is attached to the holder (300), wherein the primary optics (100) comprises a stabilizing structure (200), wherein the stabilizing structure (200) is built as a protrusion projecting from the common light output surface (130) in the main direction (X), wherein the stabilizing structure (200) has a first support surface (210), and wherein the common light output surface (130) at least partially surrounds the stabilizing structure (200), wherein the cover element (400) comprises a first counter-support surface (410), which follows the form of the first support surface (210) of the stabilizing structure (200), wherein the base body (110) of the primary optics (100) comprises a second support surface (140), which is arranged on the opposite side of the first support surface (210) on the backside of the primary optics (100), and wherein the holder (300) comprises a second counter-support surface, wherein the first counter-support surface (410) in combination with the first support surface (210) of the stabilizing structure (200) is configured to stabilize the position of the curved surface of the optically relevant area (131) of the common light output surface (130) of the primary optics (100) when the cover element (400) is attached to the holder (300), and wherein the cover element (400) presses against the first support surface (210) of the stabilizing structure (200) and the second counter-support surface of the holder (300) presses against the second support surface (140) of the base body (110), when the cover element (400) is attached to the holder (300).