# US 10,502,387 B2 · Smart headlight > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,502,387 B2 - Document ID: US10502387B2 - Status: Granted - Kind: B2 - Application number: 16/261,470 - Filed: 2019-01-29 - Published: 2019-08-01 - Granted: 2019-12-10 - Earliest claimed: 2018-01-29 - Assignees: Chian Yin Optotech Co., Ltd. - Applicants: Chian Yih Optotech Co., Ltd. - Inventors: Cheng Wang - Web page: https://patentgrep.com/patent/US10502387B2 ## CPC - F21S 41/692: Shields, i.e. screens not creating an image meant to be projected - F21S 41/147: the main emission direction of the LED being angled to the optical axis of the illuminating device - F21S 41/148: the main emission direction of the LED being perpendicular to the optical axis - F21S 41/192: {Details of lamp holders, terminals or connectors} - F21S 41/25: Projection lenses - F21S 41/255: Lenses with a front view of circular or truncated circular outline - F21S 41/295: {specially adapted to projection lenses} - F21S 41/321: {the reflector being a surface of revolution or a planar surface, e.g. truncated} - F21S 41/33: Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature - F21S 41/36: Combinations of two or more separate reflectors - F21S 41/365: successively reflecting the light - F21S 41/39: Attachment thereof (achieving variable light distribution by movable reflectors F21S41/675) - F21S 41/43: characterised by the shape thereof - F21S 41/663: by switching light sources (by switching incandescent light sources F21S41/162) - F21S 41/689: Flaps, i.e. screens pivoting around one of their edges - F21S 45/47: Passive cooling, e.g. using fins, thermal conductive elements or openings - F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS ## Abstract A smart headlight includes a headlight mount, a main light source, at least one auxiliary light source, a lens and a light-shielding structure. The main light source is disposed on the headlight mount and the at least one auxiliary light source is disposed next to the main light source in symmetrical arrangement. The lens is connected to the headlight mount and corresponds in position to the main light source. The light shielding structure is disposed on the headlight mount and arranged between the main light source and the lens. ## Claims ### Claim 1 A smart headlight, comprising: a headlight mount; a main light source disposed on the headlight mount, wherein the main light source includes a first light-reflecting cup and a first light-emitting unit, the first light-reflecting cup has at least one first focal point located in the cover area of the first light-reflecting cup, and the first light-emitting unit corresponds in position to the at least one first focal point of the first light-reflecting cup; at least one auxiliary light source disposed on the headlight mount and arranged next to the main light source, wherein the auxiliary light source includes a second light-reflecting cup and a second light-emitting unit, the second light-reflecting cup has a first focal point and a second focal point corresponding in position to the first focal point, and the second light-emitting unit corresponds in position to the first focal point of the second light-reflecting cup; a lens connected to the headlight mount and corresponding in position to the main light source, wherein the lens has a lens optical axis and a light input surface, the light input surface has a first reference point, a second reference point and a third reference point, the lens optical axis passes through the first reference point, the second reference point is an edge point of the light input surface that has a farthest distance from the first reference point, and the third reference point is located between the first reference point and the second reference point; and a light shielding structure disposed on the headlight mount and arranged between the main light source and the lens; wherein d represents the shortest distance between the first reference point and the second reference point, and the third reference point has a distance between ½d and ¾d from the second reference point; wherein the second focal point of the second light-reflecting cup is located between the second reference point and the third reference point. ### Claim 2 (depends on 1) The smart headlight according to claim 1, wherein the second focal point of the second light-reflecting cup is located at a central position between the second reference point and the third reference point or in the vicinity of the central position. ### Claim 3 (depends on 1) The smart headlight according to claim 1, wherein a straight line extending through the first light-emitting unit and being perpendicular to the lens optical axis is defined as a first straight line, a straight line extending through the second reference point and being parallel to the lens optical axis is defined as a second straight line, a straight line extending through an intersection point of the first straight line and the second straight line is defined as a third straight line, and the third straight line has an included angle between 2 and 17.5 degrees relative to the second straight line. ### Claim 4 (depends on 1) The smart headlight according to claim 1, wherein a fourth straight line extending through the first focal point and the second focal point of the second light-reflecting cup is defined, the second light-reflecting cup has a front opening facing the lens and a side opening facing the main light source, and the side opening extends along the extension direction of the fourth straight line, and wherein the headlight mount has a supporting surface, the second light-emitting unit is disposed on the supporting surface and has a primary lighting surface that is parallel to the supporting surface, the primary lighting surface has a first side edge exposed from the front opening and a second side edge exposed from the side opening, and the second side edge is flush with an edge of the side opening. ### Claim 5 (depends on 4) The smart headlight according to claim 4, wherein the auxiliary light source further includes a reflecting mirror that is disposed along the extension direction of the side opening and has a light-reflecting planar surface covering the second light-emitting unit, and the light-reflecting planar surface is closely adjacent to the second side edge. ### Claim 6 (depends on 5) The smart headlight according to claim 5, wherein the reflecting mirror has a front end that is substantially flush with the second side edge of the primary lighting surface. ### Claim 7 (depends on 1) The smart headlight according to claim 1, wherein a fourth straight line extending through the first focal point and the second focal point of the second light-reflecting cup is defined, the second light-reflecting cup has a front opening facing the lens and a side opening facing the main light source, and the side opening extends along the extension direction of the fourth straight line, wherein the headlight mount has a supporting surface, and the second light-reflecting cup has an upper reflecting surface and a lower reflecting surface that are respectively located above and below the supporting surface, wherein the second light-emitting unit is disposed on the supporting surface and has a primary lighting surface that is perpendicular to the supporting surface and the rear thereof faces the side opening, wherein the light-shielding structure includes a main light-shielding plate and at least one auxiliary light-shielding plate in proximity of the main light-shielding plate, the main light-shielding plate corresponds in position to the main light source and has a top surface, and the auxiliary light-shielding plate corresponds in position to the auxiliary light source and has a top surface, and wherein one end of the top surface of the auxiliary light-shielding plate is located above or substantially flush with the top surface of the main light-shielding plate, and the top surface of the auxiliary light-shielding plate is downwardly inclined toward the lens. ### Claim 8 (depends on 1) The smart headlight according to claim 1, wherein the first light-reflecting cup includes a primary reflecting portion and at least one secondary reflecting portion disposed next to the primary reflecting portion, the number of the first focal point of the first light-reflecting cup is two, one of the first focal points is located in the cover area of the primary reflecting portion, and the other one of the first focal points is located in the cover area of the secondary reflecting portion, wherein the first light-emitting unit includes two lighting elements, one of the lighting elements corresponds in position to the first focal point of the primary reflecting portion, and the other one of the lighting elements corresponds in position to the first focal point of the secondary reflecting portion, and wherein the secondary reflecting portion further has a second focal point that is outside the cover area of the secondary reflecting portion and located between the first reference point and the third reference point. ### Claim 9 (depends on 8) The smart headlight according to claim 8, wherein the second focal point of the secondary reflecting portion is located at a central position between the first reference point and the third reference point or in the vicinity of the central position. ### Claim 10 (depends on 1) The smart headlight according to claim 1, wherein the light-shielding structure includes a main light-shielding plate that has an inner cut-off edge, an outer cut-off edge opposite to the inner cut-off edge, and a top surface connected between the inner cut-off edge and the outer cut-off edge, and the top surface has a first planar surface, a second planar surface and a recess structure formed between the first planar surface and the second planar surface. ### Claim 11 (depends on 10) The smart headlight according to claim 10, wherein the recess structure is a stepped recess structure and includes a first oblique surface, a second oblique surface and a step difference surface connected between the first oblique surface and the second oblique surface, the first oblique surface and the second oblique surface both are inclined from the outer cut-off edge toward the inner cut-off edge, and the first oblique surface is located below the second oblique surface. ### Claim 12 (depends on 11) The smart headlight according to claim 11, wherein the first oblique surface extends from the outer cut-off edge to the inner cut-off edge, and the second oblique surface extends from a position close to the outer cut-off edge to the inner cut-off edge. ### Claim 13 (depends on 12) The smart headlight according to claim 12, wherein the first oblique surface has a larger surface area than the second oblique surface. ### Claim 14 (depends on 1) The smart headlight according to claim 1, wherein the light-shielding structure includes a first light-shielding plate and a second light-shielding plate, the second light-shielding plate is closer to the main light source than the first light-shielding plate, and the first light-shielding plate is configured to reciprocally move between an upright position and a reclined position, wherein the first light-shielding plate at the upright position covers the second light-shielding plate so that lights projected from the main light source are selectively shielded by a top portion of the first light-shielding plate and refracted by the lens to produce a first illumination mode, wherein a top portion of the second light-shielding plate is exposed from the first light-shielding plate at the reclined position so that lights projected from the main light source are selectively shielded by the top portion of the second light-shielding plate and refracted by the lens to produce a second illumination mode, and the second illumination mode has a farther illumination distance than the first illumination mode. ### Claim 15 (depends on 14) The smart headlight according to claim 14, wherein the first light-shielding plate is a vertical-type light-shielding plate, the second light-shielding plate is a flat-type light-shielding plate, and the shortest distance between the first light-shielding plate and the second light-shielding plate is between 0.1 mm and 5 mm. ### Claim 16 (depends on 15) The smart headlight according to claim 15, wherein the top portion of the first light-shielding plate has a first top surface, the first top surface has two first planar surfaces and a first step difference surface connected between the first planar surfaces, and one of the first planar surfaces is located above the other one of the first planar surfaces, wherein the top portion of the second light-shielding plate has a second top surface, and the second top surface has an inner side region and an outer side region, the outer side region being closer to the first light-shielding plate than the inner side region, and wherein the outer side region has two second planar surfaces and a second step difference surface connected between the second planar surfaces, and one of the second planar surfaces is located above the other one of the second planar surfaces. ### Claim 17 (depends on 16) The smart headlight according to claim 16, wherein the first planar surface at a higher position is located above the second planar surface at a higher position, and the first planar surface at a lower position is located below the second planar surface at a lower position. ### Claim 18 (depends on 16) The smart headlight according to claim 16, wherein the first planar surface at a higher position is located above the second planar surface at a higher position, and the first planar surface at a lower position is substantially flush with the second planar surface at a lower position. ### Claim 19 (depends on 16) The smart headlight according to claim 16, wherein the first top surface and the outer side region of the second top surface have a light extinction property and the inner side region of the second top surface has a light reflection property. ### Claim 20 (depends on 16) The smart headlight according to claim 16, wherein the first top surface and the inner side region and the outer side region of the second top surface all have a light reflection property. ### Claim 21 (depends on 1) The smart headlight according to claim 1, wherein the light-shielding structure includes a first light-shielding plate that is configured to reciprocally move between a first position and a second position lower than the first position, wherein when the first light-shielding plate is at the first position, lights projected from the main light source are selectively shielded by a top portion of the first light-shielding plate and refracted by the lens to produce a first illumination mode, and wherein when the first light-shielding plate is at the second position, lights projected from the main light source are selectively shielded by the top portion of the first light-shielding plate and refracted by the lens to produce a second illumination mode, and the second illumination mode has a farther illumination distance than the first illumination mode. ### Claim 22 (depends on 21) The smart headlight according to claim 21, wherein the first light-shielding plate has a first top surface, the first top surface has two first planar surfaces and a first step difference surface connected between the first planar surfaces, and one of the first planar surfaces is located above the other one of the first planar surfaces.