# US 10,501,013 B2 · Lighting apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,501,013 B2 - Document ID: US10501013B2 - Status: Granted - Kind: B2 - Application number: 15/524,764 - Filed: 2015-10-07 - Published: 2017-12-07 - Granted: 2019-12-10 - Earliest claimed: 2014-11-06 - Assignees: Lisa Draexlmaier GmbH - Applicants: Lisa Draexlmaier GmbH - Inventors: Markus Wimmer; Josef Lang; Alexandr Zaviyalov - Web page: https://patentgrep.com/patent/US10501013B2 ## CPC - B60Q 3/54: Lighting devices embedded in interior trim, e.g. in roof liners - B60Q 3/74: for overall compartment lighting; for overall compartment lighting in combination with specific lighting, e.g. room lamps with reading lamps (general lighting mounted on specific fittings B60Q3/20; general lighting for mass transit vehicles B60Q3/43) - G02B 3/005: {arranged along a single direction only, e.g. lenticular sheets (G02B3/0043 takes precedence)} - G02B 3/0068: {arranged in a single integral body or plate, e.g. laminates or hybrid structures with other optical elements (G02B5/1885, G02B17/002, G02B30/27 take precedence)} - G02B 19/0061: {the light source comprising a LED} - B60Q: ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS ## Abstract The present disclosure describes a lighting system for vehicle interiors, comprising a light source that emits visible light and a component arranged relative to the light source in such a manner that light emitted from the light source passes through it. The lighting system further comprises a transparent substrate with a surface area through which light emitted from the light source passes, and a lenticular screen structure having a plurality of regularly arranged lens elements and being formed on the surface area of the transparent substrate. The present disclosure also describes using the lighting system and its component to illuminate the interior of vehicles, wherein generated three-dimensional lighting effects can be perceived differently by a viewer/occupant in the interior space, depending on the angle of viewing. ## Claims ### Claim 1 A lighting system for a vehicle interior, comprising: a light source configured to emit visible light; and a component arranged relative to the light source such that light emitted by the light source radiates through the component, the component comprising: a transparent substrate having a surface through which light emitted from the light source radiates through; a lenticular structure disposed on the surface of the transparent substrate, the lenticular structure comprising a plurality of lens elements arranged in a pattern having first and second ends; and wherein the lenticular structure comprises: a first marginal section having a first rectilinear lens element as an outermost lens element at the first end; a second marginal section having a second rectilinear lens element as an outermost lens element at the second end; a middle section arranged between the first and second marginal sections, the middle section having a wavelike lens element; and transitional lens elements arranged between the first rectilinear lens element and the wavelike lens element and between the second rectilinear lens element and the wavelike lens element, the transitional lens elements configured to create a transition between each of the first and second rectilinear lens elements and the wavelike lens element. ### Claim 2 (depends on 1) The lighting system according to claim 1, wherein the light source is at least one of a punctiform light source and an LED. ### Claim 3 (depends on 1) The lighting system according to claim 1, wherein the lenticular screen structure is disposed on a surface of the substrate facing the light source. ### Claim 4 (depends on 1) The lighting system according to claim 1, wherein the lenticular screen structure is disposed on a surface of the substrate facing away from the light source. ### Claim 5 (depends on 1) The lighting system according to claim 1, wherein: the transparent substrate includes a first surface and an opposing second surface; and the lenticular screen structure comprises a first lenticular screen structure disposed on the first surface and a second lenticular screen structure disposed on the second surface, such that a beam of light is configured to pass through the first surface and the second surface in succession. ### Claim 6 (depends on 5) The lighting system according to claim 5, wherein the first lenticular screen structure is laterally offset from the second lenticular screen structure in a cross-sectional direction of the component. ### Claim 7 (depends on 1) The lighting system according to claim 1, comprising: a compensating layer provided at least partly on the lenticular screen structure, the compensating layer configured to form an even surface; and a decor layer provided on the compensating layer. ### Claim 8 (depends on 1) The lighting system according to claim 1, wherein the light source is spaced at a distance of at least 5 mm from the closest lenticular screen structure. ### Claim 9 (depends on 1) The lighting system according to claim 1, wherein the lenticular screen structure comprises at least one of a lenticular screen foil or web. ### Claim 10 (depends on 1) The lighting system according to claim 1, wherein the lens elements have an essentially semicircular, parabolic, hyperbolic or elliptical cross-sectional profile. ### Claim 11 (depends on 10) The lighting system according to claim 10, wherein the cross-sectional profile of the lens elements has a radius of curvature of 75 to 150 μm or 90 to 110 μm. ### Claim 12 (depends on 10) The lighting system according to claim 10, wherein the cross-sectional profile of the lens elements has a conic constant between −0.5 and −1. ### Claim 13 (depends on 1) The lighting element according to claim 1, wherein distances between the transitional elements are constant, and distances across a longitudinal section of the transitional elements vary. ### Claim 14 (depends on 1) The lighting element according to claim 1, wherein the lighting system is configured to generate three-dimensional lighting effects that are perceived differently depending on a viewing angle of an occupant in the interior space. ### Claim 15 A method for producing a component of a lighting system for a vehicle interior, the method comprising the following steps: inserting a lenticular screen structure into a molding tool for shaping the component, the lenticular structure comprising a plurality of lens elements arranged in a pattern having first and second ends; feeding material of a transparent substrate into the molding tool; molding the material of the substrate to form a transparent substrate; and forming the lenticular screen structure on at least one surface area of the transparent substrate, and wherein the lenticular structure comprises: a first marginal section having a first rectilinear lens element as an outermost lens element at the first end; a second marginal section having a second rectilinear lens element as an outermost lens element at the second end; a middle section arranged between the first and second marginal sections, the middle section having a wavelike lens element; and transitional lens elements arranged between the first rectilinear lens element and the wavelike lens element and between the second rectilinear lens element and the wavelike lens element, the transitional lens elements configured to create a transition between each of the first and second rectilinear lens elements and the wavelike lens element. ### Claim 16 A component of a lighting system for a vehicle interior, comprising: a transparent substrate having a surface through which light emitted from a light source radiates through; and a lenticular structure disposed on the surface of the transparent substrate, the lenticular structure comprising a plurality of lens elements arranged in a pattern having first and second ends, wherein the lens elements include elongated structures arranged laterally adjacent one another, and wherein the lenticular structure comprises: a first marginal section having a first rectilinear lens element as an outermost lens element at the first end; a second marginal section having a second rectilinear lens element as an outermost lens element at the second end; a middle section arranged between the first and second marginal sections, the middle section having a wavelike lens element; and transitional lens elements arranged between the first rectilinear lens element and the wavelike lens element and between the second rectilinear lens element and the wavelike lens element, the transitional lens elements configured to create a transition between each of the first and second rectilinear lens elements and the wavelike lens element. ### Claim 17 (depends on 16) The component according to claim 16, wherein: the transparent substrate includes a first surface and an opposing second surface; and the lenticular screen structure comprises a first lenticular screen structure disposed on the first surface and a second lenticular screen structure disposed on the second surface, such that a beam of light is configured to pass through the first surface and the second surface in succession.