CN107062116B - LED automobile headlamp with integral structure optical lens - Google Patents
LED automobile headlamp with integral structure optical lens Download PDFInfo
- Publication number
- CN107062116B CN107062116B CN201611226893.7A CN201611226893A CN107062116B CN 107062116 B CN107062116 B CN 107062116B CN 201611226893 A CN201611226893 A CN 201611226893A CN 107062116 B CN107062116 B CN 107062116B
- Authority
- CN
- China
- Prior art keywords
- angle
- value range
- longitudinal
- transverse
- curve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 50
- 230000008859 change Effects 0.000 claims abstract description 79
- 238000010276 construction Methods 0.000 claims description 15
- 238000005286 illumination Methods 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 7
- 230000007547 defect Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
- F21V5/048—Refractors for light sources of lens shape the lens being a simple lens adapted to cooperate with a point-like source for emitting mainly in one direction and having an axis coincident with the main light transmission direction, e.g. convergent or divergent lenses, plano-concave or plano-convex lenses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/25—Projection lenses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention relates to an LED automobile headlamp with an optical lens with an integral structure, which comprises an optical lens and an LED arranged at the light inlet of the optical lens, wherein the optical lens comprises a bottom surface and a total curved surface arranged on the bottom surface, and the LED automobile headlamp is characterized in that the total curved surface is respectively divided into a plurality of longitudinal curved surfaces and transverse curved surfaces along the longitudinal direction and the transverse direction, the refraction angle alpha of light emitted by a light source is emitted by the transverse curved surfaces, and the value range of the angle alpha is divided into two parts: gradual change from 0 to 7.01 degrees; alpha is less than or equal to 0.17 degree gradual change, the refraction angle beta of the light rays emitted by the longitudinal curved surface is in the range of 0-9.37 degree gradual change.
Description
Technical Field
The invention relates to an LED automobile headlamp with an optical lens with an integral structure.
Background
The automotive headlamp is one of main components of automotive safety, and a halogen lamp and a gas discharge lamp (HID) which are widely used at present have high luminous intensity, and have the defects of low luminous efficiency, low service life, large heat generation, difficult color temperature adjustment, large power and the like. The LED light source technology is continuously improved, the luminous efficiency is obviously improved, and the high-power LED light source can be completely applied to automobiles and also can be applied to automobile headlamps, such as automobile dipped headlights: because the traditional automobile headlamp adopts a cylindrical HID lamp structure, the formed light spots are brightest and darkened gradually at the center point, and the traditional dipped headlight light spots are formed, however, when the LED light source is a surface light source or a near point light source and corresponds to the surface light source to form the dipped headlight light spots, the LED light source has a large difference, and the LED light source is also a main technical difficulty for restricting the application of the LED light source to the automobile dipped headlight, and similarly, the automobile high beam has the same difficulty.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the LED automobile headlamp with the optical lens with the integral structure, which can effectively control the width range of a target light spot area.
In order to achieve the above purpose, the invention adopts the following technical scheme: the invention provides an LED automobile headlamp with an optical lens of an integral structure, which comprises an optical lens and an LED arranged at the light inlet of the optical lens, wherein the optical lens comprises a bottom surface and a total curved surface arranged on the bottom surface, the total curved surface is respectively divided into a plurality of longitudinal curved surfaces and a plurality of transverse curved surfaces along the longitudinal direction and the transverse direction, the refraction angle alpha of light rays emitted by a light source is emitted through the longitudinal curved surfaces, and the value range of the angle alpha is divided into a left part and a right part: gradual change from 0 to 7.01 degrees; alpha is less than or equal to 0.17 degree gradual change, the refraction angle beta of the light rays emitted by the longitudinal curved surface is in the range of 0-9.37 degree gradual change.
The bottom surface is of a circular structure, and the diameter D1 of the bottom surface is 20-40mm; the height H1 of the total curved surface is 30-50 mm.
Meanwhile, the invention also provides an LED automobile headlamp with the optical lens with the integral structure, which comprises a bottom surface and a total curved surface arranged on the bottom surface, wherein the total curved surface comprises a grid formed by staggered construction of 7 longitudinal curves, 7 transverse curves and a bottom surface curve and a smooth transitional curved surface formed on the grid; wherein, one side to the other side of the 7 longitudinal curves along the longitudinal direction of the bottom surface are respectively a first longitudinal curve, a second longitudinal curve, a third longitudinal curve, a fourth longitudinal curve, a fifth longitudinal curve, a sixth longitudinal curve and a seventh longitudinal curve; the 7 transverse curves are respectively a first transverse curve, a second transverse curve, a third transverse curve, a fourth transverse curve, a fifth transverse curve, a sixth transverse curve and a seventh transverse curve from one side to the other side of the transverse direction of the bottom surface; the projection lines of the 7 longitudinal curves and the 7 transverse curves on the bottom surface respectively divide the bottom surface curves into 8 equal parts along the longitudinal direction and the transverse direction.
The bottom surface is of a circular structure, and the diameter D1 of the bottom surface is 20-40mm; the height H1 of the total curved surface is 30-50 mm; the height of the highest point of the first longitudinal curve is 20-30 mm; the length D2 of the two end points of the first longitudinal curve is 30-38 mm. The light source is positioned 1-5mm below the bottom surface.
The curved surfaces formed by constructing the first, second, third and fourth longitudinal curves, the first, second, third and fourth transverse curves and the bottom surface curves are the curved surfaces for controlling the cut-off line.
The curved surfaces formed by constructing the first, second, third and fourth longitudinal curves, the fourth and fifth transverse curves and the bottom surface curve are the curved surfaces for controlling the switching area.
The curved surfaces formed by constructing the first, second, third and fourth longitudinal curves, the fifth, sixth and seventh transverse curves and the bottom surface curves are the curved surfaces for controlling the right protruding light spot area.
And the curved surfaces formed by constructing the fourth, fifth, sixth and seventh longitudinal curves, the first, second, third, fourth, fifth, sixth and seventh transverse curves and the bottom surface curves are the curved surfaces of the main control illumination spot area.
Angle of refraction of light emitted from the light source through the seventh longitudinal curve, left side portion, angle beta C 4 The value range can be selected from 0 to 9.37 degree gradual change, the right part is provided with an angle beta D 8 The value range can be selected from 0 to 9.37 degree gradual change; angle of refraction of light emitted from the light source through the first longitudinal curve, left side portion, angle beta C 2 The value range can be selected from 0 to 8.99 degree gradual change, the right side part and the angle beta D 2 The value range can be selected from 0 to 9.32 degree gradual change.
Angle of refraction of light emitted from the light source through the sixth longitudinal curve, left side portion, angle beta C 7 The value range can be selected from 0 to 9.35 degrees gradually changed, the right part is provided with an angle beta D 7 The value range can be selected from 0 to 9.35 degree gradual change; angle of refraction of light emitted from the light source through the second longitudinal curve, left side portion, angle beta C 3 The value range can be selected from 0 to 9.23 degree gradual change, the right part is provided with an angle beta D 3 The value range can be selected from 0 to 9.25 degree gradual change.
Angle of refraction of light emitted from the light source through the fifth longitudinal curve, left side portion, angle beta C 6 The value range can be selected from 0 to 9.26 degrees gradually changed, the right part is provided with an angle beta D 6 The value range can be selected from 0 to 9.26 degrees for gradual change; angle of refraction of light emitted from the light source through the third longitudinal curve, left side portion, angle beta C 4 The value range is optionally less than or equal to 9.15 degrees gradually changed, the right part is provided with an angle beta D 4 The value range can be selected from 0 to 9.15 degree gradual change.
Angle of refraction of light emitted from the light source through the fourth longitudinal curve, left side portion, angle beta C 5 The value range can be selected from 0 to 9.15 DEGGradual, right-hand portion, angle beta D 5 The value range can be selected from 0 to 9.15 degree gradual change.
The refraction angle of the light emitted by the light source and emitted by the first and the seventh transverse curves, the left part and the angle alpha a 4 The value range can be selected from 0 to 7.01 degree gradual change, the right part is provided with an angle alpha b 2 The value range is less than or equal to 0.17 degree gradual change.
The refraction angle of the light emitted by the light source and emitted by the second and the sixth transverse curves, the left part and the angle alpha a 3 The value range is 0-6.91 degrees gradually changed, the right part is provided with an angle alpha b 2 The value range is less than or equal to 0.17 degree gradual change.
The refraction angle of the light emitted by the light source and emitted by the third and fifth transverse curves, the left part and the angle alpha a 2 The value range is 0-6.87 degrees gradually changed, the right part is provided with an angle alpha b 2 The value range is less than or equal to 0.17 degree gradual change.
Angle of refraction of light emitted from the light source through the fourth transverse curve, left side portion, angle alpha a 1 The value range is 0-6.86 degree gradually changed, the right side part is provided with an angle alpha b 1 The value range is less than or equal to 0.17 degree gradual change.
Compared with the prior art, the invention has the beneficial effects that:
the refraction angle of the light rays from the light source in the longitudinal curved surface is controlled to be 0-7.01 degree gradual change and alpha is less than or equal to 0.17 degree gradual change through the total curve structure which is specially designed, the refraction angle of the light rays emitted from the transverse curved surface is controlled to be 0-9.37 degree gradual change, and according to the dipped headlight standard of the automobile lamp, the light spots formed in the target area through the lens are about 8 meters in width, namely about 4 meters on the central line, and the light spot heights are about 3 meters, namely 3 meters below the horizontal line.
Drawings
FIG. 1 is a schematic diagram of a curve division of a general surface of the present invention;
FIG. 2 is a schematic top view of FIG. 1;
FIG. 3 is a schematic view of the DD direction of FIG. 1;
FIG. 4 is a schematic view of a light spot projected by a light source through an optical lens to a 25 meter point;
FIG. 5 is a view of the optical lens AA of the present invention in a direction;
FIG. 6 is a BB-directional view of an optical lens of the present invention;
FIG. 7 is a view of the direction of the optical lens CC of the present invention;
FIG. 8 is a DD direction view of the optical lens of the present invention;
FIG. 9 is a view showing the construction of a curved surface 9;
FIG. 10 is a view showing the construction of a curved surface 10;
FIG. 11 is a view showing the construction of a curved surface 11;
fig. 12A and 12B are views showing the structure of the curved surface 12;
fig. 13 is a view showing a structure of the curved surface 13;
FIG. 14 is a view showing the construction of curved surface 14;
FIG. 15 is a view showing the construction of curved surface 15;
FIG. 16 is a view showing the construction of a curved surface 8;
FIG. 17 is a view showing the construction of the curved surface 7;
FIG. 18 is a view showing the construction of the curved surface 6;
FIG. 19 is a view showing the construction of the curved surface 5;
FIG. 20 is a view showing the construction of curved surface 4;
FIG. 21 is a view showing the construction of a curved surface 3;
FIG. 22 is a view showing the construction of curved surface 2;
FIG. 23 is a schematic view of an automotive headlamp spot of the present invention;
fig. 24 is a schematic view of the structure of the automotive headlamp of the present invention.
Detailed Description
The invention is further described below in connection with the following detailed description. Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to be limiting of the present patent; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numbers in the drawings of embodiments of the invention correspond to the same or similar components; in the description of the present invention, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limitations of the present patent, and specific meanings of the terms described above may be understood by those skilled in the art according to specific circumstances.
Examples
The LED automobile headlamp with the integral structure comprises an LED automobile dipped headlight and an LED automobile high beam, wherein the LED automobile dipped headlight is composed of an LED light source and a dipped beam optical lens, and the high beam is composed of an LED light source and a high beam optical lens.
As shown in fig. 23 and 24, the LED automotive low beam lamp comprises: the LED light source module with 20 watts is adopted, the light emitting angle is 120 degrees, the luminous flux is larger than 1600lm, the LED light source module is placed at the position 3-7 mm below the high beam optical lens, light emitted by the LED light source is refracted and reflected by the high beam optical lens, and then, a light spot projected to a 25m far receiving light plane is in a semi-elliptical shape, wherein a protruding part is arranged on a light spot on the right side, and the standard requirement of an automobile dipped headlight is met.
101 is an LED light source module, 100 is a low beam optical lens, 99 is light emitted from a low beam, and the low beam projects a light spot of 25m far receiving light plane as a semi-elliptical shape+a protruding portion in fig. 23.
The design method of the low beam optical lens comprises the following steps: the light source comprises a bottom surface 1 and a total curved surface arranged on the bottom surface 1, wherein the total curved surface is divided into a plurality of longitudinal curved surfaces and transverse curved surfaces along the longitudinal direction and the transverse direction respectively, the refraction angle alpha of light rays emitted by the light source is emitted by the transverse curved surfaces, and the value range of the angle alpha is divided into a left side part and a right side part: gradual change from 0 to 7.01 degrees; alpha is less than or equal to 0.17 degree gradual change, the refraction angle beta of the light rays emitted by the longitudinal curved surface is in the range of 0-9.37 degree gradual change. The left part of the range of the angle alpha is the position indicated by CC in fig. 1, and the right part is the position indicated by DD.
Specifically, in fig. 1 and 2, the plurality of longitudinal curved surfaces are a longitudinal curved surface 2, a longitudinal curved surface 3, a longitudinal curved surface 4, a longitudinal curved surface 5, a longitudinal curved surface 6, and a longitudinal curved surface 7; the plurality of transverse curved surfaces are a transverse curved surface 9, a transverse curved surface 10, a transverse curved surface 11, a transverse curved surface 12, a transverse curved surface 13, a transverse curved surface 14 and a transverse curved surface 15. Several of these curved surfaces are described as examples:
the longitudinal curved surface 2 is composed of a curve 2 composed of points C ', D', E ', F', G ', H', I ', C' together and then with the bottom surface.
The longitudinal curved surface 3 is composed of a curve 3 composed of points A ", B", C ", D", E ", F", G ", H", I "together and then with the bottom surface.
The longitudinal curved surface 4 is composed of a curved surface 4 composed of points A, B, C, D, E, F, G, H and I together and then is composed of a bottom surface.
The transverse curved surface 12 is formed by a curve 12 formed by points A, B, C, D, E, F, G, H, I and then formed by the bottom surface.
The invention also provides an optical lens, which comprises a bottom surface and a total curved surface arranged on the bottom surface, wherein the total curved surface comprises a grid formed by staggered construction of 7 longitudinal curves, 7 transverse curves and a bottom surface curve and a smooth transitional curved surface formed on the grid; wherein, one side to the other side of the 7 longitudinal curves along the longitudinal direction of the bottom surface are respectively a first longitudinal curve, a second longitudinal curve, a third longitudinal curve, a fourth longitudinal curve, a fifth longitudinal curve, a sixth longitudinal curve and a seventh longitudinal curve; the 7 transverse curves are respectively a first transverse curve, a second transverse curve, a third transverse curve, a fourth transverse curve, a fifth transverse curve, a sixth transverse curve and a seventh transverse curve from one side to the other side of the transverse direction of the bottom surface; the projection lines of the 7 longitudinal curves and the 7 transverse curves on the bottom surface respectively divide the bottom surface curves into 8 equal parts along the longitudinal direction and the transverse direction.
The bottom surface is of a circular structure, and the diameter D1 of the bottom surface is 20-40mm; the height H1 of the total curved surface is 30-50 mm; the height of the highest point of the first longitudinal curve is 20-30 mm; the length D2 of the two end points of the first longitudinal curve is 30-38 mm.
The curved surfaces formed by constructing the first, second, third and fourth longitudinal curves, the first, second, third and fourth transverse curves and the bottom surface curves are the curved surfaces for controlling the cut-off line.
The curved surfaces formed by constructing the first, second, third and fourth longitudinal curves, the fourth and fifth transverse curves and the bottom surface curve are the curved surfaces for controlling the switching area.
The curved surfaces formed by constructing the first, second, third and fourth longitudinal curves, the fifth, sixth and seventh transverse curves and the bottom surface curves are the curved surfaces for controlling the right protruding light spot area.
And the curved surfaces formed by constructing the fourth, fifth, sixth and seventh longitudinal curves, the first, second, third, fourth, fifth, sixth and seventh transverse curves and the bottom surface curves are the curved surfaces of the main control illumination spot area.
Specifically, in fig. 3, the control cutoff curve surface of the received light spot is composed of a curved surface 16, a curved surface 17, a curved surface 18, a curved surface 19, a curved surface 20, a curved surface 21, a curved surface 22, a curved surface 23, a curved surface 24, a curved surface 25, a curved surface 26, a curved surface 27, a curved surface 28, a curved surface 29, and a curved surface 30.
The curved surface of the control transfer area of the receiving light spot consists of a curved surface 31, a curved surface 32, a curved surface 33 and a curved surface 34.
The curved surface of the right protruding light spot area of the control of the receiving light spot is composed of a curved surface 35, a curved surface 36, a curved surface 37, a curved surface 38, a curved surface 39, a curved surface 40, a curved surface 41, a curved surface 42, a curved surface 43, a curved surface 44 and a curved surface 45.
The control main illumination spot area curved surface of the receiving light spot is composed of curved surface 59, curved surface 60, curved surface 61, curved surface 62, curved surface 63, curved surface 64, curved surface 65, curved surface 66, curved surface 67, curved surface 68, curved surface 69, curved surface 70, curved surface 71, curved surface 72, curved surface 73, curved surface 74, curved surface 75, curved surface 76, curved surface 77, curved surface 78, curved surface 79, curved surface 80, curved surface 81, curved surface 82, curved surface 83, curved surface 84, curved surface 85, curved surface 86, curved surface 87, and curved surface 88.
Angle of refraction of light emitted from the light source through the seventh longitudinal curve, left side portion, angle beta C 4 The value range can be selected from 0 to 9.37 degree gradual change, the right part is provided with an angle beta D 8 The value range can be selected from 0 to 9.37 degree gradual change; angle of refraction of light emitted from the light source through the first longitudinal curve, left side portion, angle beta C 2 The value range can be selected from 0 to 8.99 degree gradual change, the right side part and the angle beta D 2 The value range can be selected from 0 to 9.32 degree gradual change.
Angle of refraction of light emitted from the light source through the sixth longitudinal curve, left side portion, angle beta C 7 The value range can be selected from 0 to 9.35 degrees gradually changed, the right part is provided with an angle beta D 7 The value range can be selected from 0 to 9.35 degree gradual change; angle of refraction of light emitted from the light source through the second longitudinal curve, left side portion, angle beta C 3 The value range can be selected from 0 to 9.23 degree gradual change, the right part is provided with an angle beta D 3 The value range can be selected from 0 to 9.25 degree gradual change.
Angle of refraction of light emitted from the light source through the fifth longitudinal curve, left side portion, angle beta C 6 The value range can be selected from 0 to 9.26 degrees gradually changed, the right part is provided with an angle beta D 6 The value range can be selected from 0 to 9.26 degrees for gradual change; angle of refraction of light emitted from the light source through the third longitudinal curve, left side portion, angle beta C 4 The value range is optionally less than or equal to 9.15 degrees gradually changed, the right part is provided with an angle beta D 4 The value range can be selected from 0 to 9.15 degree gradual change.
Angle of refraction of light emitted from the light source through the fourth longitudinal curve, left side portion, angle beta C 5 The value range can be selected from 0 to 9.15 degree gradual change, the right part is provided with an angle beta D 5 The value range can be selected from 0 to 9.15 degree gradual change.
The refraction angle of the light emitted by the light source and emitted by the first and the seventh transverse curves, the left part and the angle alpha a 4 The value range can be selected from 0 to 7.01 degree gradual change, the right part is provided with an angle alpha b 2 The value range is less than or equal to 0.17 degree gradual change.
The refraction angle of the light emitted by the light source and emitted by the second and the sixth transverse curves, the left part and the angle alpha a 3 The value range is 0-6.91 degrees gradually changed, the right part is at an angleα b 2 The value range is less than or equal to 0.17 degree gradual change.
The refraction angle of the light emitted by the light source and emitted by the third and fifth transverse curves, the left part and the angle alpha a 2 The value range is 0-6.87 degrees gradually changed, the right part is provided with an angle alpha b 2 The value range is less than or equal to 0.17 degree gradual change.
Angle of refraction of light emitted from the light source through the fourth transverse curve, left side portion, angle alpha a 1 The value range is 0-6.86 degree gradually changed, the right side part is provided with an angle alpha b 1 The value range is less than or equal to 0.17 degree gradual change.
Specifically, in fig. 12, the light 91 emitted from the LED light source 58 is projected onto the bottom surface AI of the optical lens, i.e. when entering the lens material from the air, the light is refracted for the first time, and then is projected onto the curved surface HI of the lens, i.e. when entering the air from the lens material, the light is refracted for the second time, and in the same way, the light 90 emitted from the LED light source 58 is projected onto the bottom surface AI of the optical lens, the light is refracted for the first time, and then is projected onto the curved surface AB of the lens, and the refractive angles of the curved surfaces are as follows:
in fig. 12, curved surfaces 9, 10, 11, 12, 13, 14, and 15 are asymmetric structures.
【1】 Curved surface 12:
(1) refraction angle alpha of light emitted by light source and emitted by curved surface 12 a 1 In FIG. 12A, the angle α is located within the curved ABCDE curve, i.e., the left side portion a 1 The value range can be selected from 0 to 6.86 degree gradual change.
(2) In fig. 12A, the angle α is located within the curved IHGFE curve, i.e., the right hand portion b 1 The value range is less than or equal to 0.17 degree gradual change.
【2】 Curved surface 13, 11
(1) The light emitted by the light source passes through the curved surface 13, the curved surface 11, the left part and the refraction angle alpha of the emitted light a 2 Angle alpha a 2 The value range can be selected from 0 to 6.87 degree gradual change.
(2) The right-hand side portion,angle alpha b 2 The value range is less than or equal to 0.17 degree gradual change.
【3】 Curved surface 14, curved surface 10
(1) The light emitted by the light source passes through the curved surface 14 and the curved surface 10 and the refraction angle alpha of the emitted light a 3 Angle alpha a 3 The value range can be selected from 0 to 6.91 degree gradual change.
(2) Right side portion, angle alpha b 2 The value range is less than or equal to 0.17 degree gradual change.
【4】 Curved surface 15, curved surface 9
(1) The light emitted by the light source passes through curved surface 15, curved surface 9, left part and the refraction angle alpha of the emitted light a 4 Angle alpha a 4 The value range can be selected from 0 to 7.01 degree gradient.
(2) Right side portion, angle alpha b 2 The value range is less than or equal to 0.17 degree gradual change.
The left and right portions of each curved surface are defined by a boundary along a center line, that is, a boundary between the curved surface 12 (fourth transverse curve) and the curved surface 5 (fourth longitudinal curve), and the limitation of the refractive angle ensures that the spot width is about 8 meters when the LED light source 58 projects 25 meters, that is, about 4 meters each around the center line, as shown in fig. 4.
In fig. 19, the LED light source 58 emits light 94 to the bottom surface AI of the optical lens, i.e. when entering the lens material from the air, a first refraction of light is generated, and then the light is projected to the curved surface H x I of the lens, i.e. when entering the air from the lens material, a second refraction of light is generated, and similarly, the LED light source 58 emits light 96 to the bottom surface AI of the optical lens, a first refraction of light is generated, and then the light is projected to the curved surface AB of the lens, and further the refraction angles of the curved surfaces are as follows:
the curved surfaces 5, 6, 7 and 8 are symmetrical structures, and the curved surfaces 4, 3 and 2 are asymmetrical structures.
【1】 Curved surface 5:
refraction angle beta of light emitted by light source through curved surface 5 C 5 And beta D 5 Left part, angle beta C 5 The value range can be selected from 0 to 9.15 degree gradual change, the right part is provided with an angle beta D 5 The value range can be selected from 0 to 9.15 degree gradual change.
【2】 Curved surface 6
Refraction angle beta of light emitted by light source through curved surface 6 C 6 And beta D 6 Left part, angle beta C 6 The value range can be selected from 0 to 9.26 degrees gradually changed, the right part is provided with an angle beta D 6 The value range can be selected from 0 to 9.26 degree gradual change.
【3】 Curved surface 7
Refraction angle beta of light emitted by light source through curved surface 7 C 7 And beta D 7 Left part, angle beta C 7 The value range can be selected from 0 to 9.35 degrees gradually changed, the right part is provided with an angle beta D 7 The value range can be selected from 0 to 9.35 degree gradual change.
【4】 Curved surface 8
Refraction angle beta of light emitted by light source through curved surface 7 C 8 And beta D 8 Left part, angle beta C 4 The value range can be selected from 0 to 9.37 degree gradual change, the right part is provided with an angle beta D 8 The value range can be selected from 0 to 9.37 degree gradual change.
【5】 Curved surface 4:
refraction angle beta of light emitted by light source through curved surface 4 C 4 And beta D 4 Left part, angle beta C 4 The value range is optionally less than or equal to 9.15 degrees gradually changed, the right part is provided with an angle beta D 4 The value range can be selected from 0 to 9.15 degree gradual change.
【6】 Curved surface 3
Refraction angle beta of light emitted by light source through curved surface 3 C 3 And beta D 3 Left part, angle beta C 3 The value range can be selected from 0 to 9.23 degree gradual change, the right part is provided with an angle beta D 3 The value range can be selected from 0 to 9.25 degree gradual change.
【7】 Curved surface 2
Refraction angle beta of light emitted by light source and emitted by curved surface 2 C 2 And beta D 2 Left part, angle beta C 2 The value range can be selected from 0 to 8.99 degree gradual change, the right side part and the angle beta D 2 The value range can be selected from 0 to 9.32 degree gradual change.
The limitation of the refraction angle ensures that the height of the light spot is 3 meters, i.e. 3 meters below the horizontal line, when the LED light source 58 projects 25 meters, as shown in fig. 4.
The LED light source corresponding to the optical lens is arranged below the bottom surface.
The total height H1 of the lens is 30-50 mm, the diameter D1 of the bottom surface circle is 20-40mm, the height H2 in the curved surface 2 is 20-30 mm, and the bottom dimension D2 of the curved surface is 30-38 mm.
The lens design method comprises the following steps: (1) The LED light source 58 is placed below the bottom surface of the lens, typically at a distance in the range of 1-5mm.
(2) The method for adjusting the shape of the transverse curved surface is characterized in that light rays emitted by the LED light source are projected to a region 47 and a region 48 for receiving light spots after being refracted by the longitudinal curved surface, so that the height of the receiving light spots at the position 25m is ensured, and the shape of the light spots in FIG. 4 is referred to.
(3) The method for adjusting the shape of the transverse curved surface is characterized in that light rays emitted by the LED light source are projected to a region 47 and a region 48 for receiving light spots after being refracted by the longitudinal curved surface, so that the width of the light spots at 25m is ensured, and the shape of the light spots in FIG. 4 is referred to.
(4) When the longitudinal curved surface 2, the longitudinal curved surface 3, the longitudinal curved surface 4, the longitudinal curved surface 5, the transverse curved surface 9, the transverse curved surface 10, the transverse curved surface 11 and the transverse curved surface 12 are used, the right protruding light spot area of the light spot received at the 25m position is mainly determined, and all the curved surfaces are compatible with each other, so that the light is effectively projected to the point HV, the point H1, the point H4, the point H and the point HV area.
Lens design process: firstly, the dimensions of the lens height H1 and the bottom surface diameter D1 are determined, secondly, the dimensions of each curved surface are sequentially adjusted according to the design method of the invention, and then, the longitudinal curved surface 2, the longitudinal curved surface 3, the longitudinal curved surface 4, the longitudinal curved surface 5, the longitudinal curved surface 6, the longitudinal curved surface 7, the transverse curved surface 9, the transverse curved surface 10, the transverse curved surface 11, the transverse curved surface 12, the transverse curved surface 13, the transverse curved surface 14 and the transverse curved surface 15 are determined.
The design method of the LED high beam comprises the following steps:
(1) the manufacturing method of the high beam optical lens comprises the following steps: according to the method for manufacturing the low beam optical lens, the curved surface 2 and the curved surface 8 are designed to be the same in shape, the curved surface 3 and the curved surface 7 are the same in shape, the curved surface 4 and the curved surface 6 are the same in shape, and the shape of the curved surface 5 is unchanged.
Of the curved surfaces 9, 10, 11, 12, 13, 14, and 15, the right side direction, that is, the direction from the CC view lens, is the same as the left side shape with respect to the center axis.
The high beam optical lens structure is symmetrical, light spots are generated to be elliptical, the size of the high beam optical lens can be properly reduced and adjusted, the reduction of circular light spots can be changed, and the brightness value of the light spots is improved.
(2) The LED light source module with 20 watts is adopted, the light emitting angle is 120 degrees, the luminous flux is larger than 1600lm, the LED light source module is placed at the position 3-7 mm below the high beam optical lens, light emitted by the LED light source is refracted and reflected by the high beam optical lens, and then, a light spot projected to a 25m far receiving light plane is in an elliptical shape, so that the standard requirement of the automobile high beam light is met. As shown in fig. 23 and 24.
(3) Reference numeral 103 denotes an LED light source module, 102 denotes a high beam optical lens, and 104 denotes an elliptical shape in which a high beam emits light and a light spot of the high beam projected to a 25m far receiving light plane is vertically symmetrical in fig. 23.
It is to be understood that the above examples of the present invention are provided by way of illustration only and not by way of limitation of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (10)
1. The LED automobile headlamp with the optical lens with the integral structure comprises the optical lens and an LED arranged at the light inlet of the optical lens, wherein the optical lens comprises a bottom surface and a total curved surface arranged on the bottom surface, and the LED automobile headlamp is characterized in that the total curved surface comprises a grid formed by staggered construction of 7 longitudinal curves, 7 transverse curves and a bottom surface curve and a smooth transitional curved surface formed on the grid; wherein, one side to the other side of the 7 longitudinal curves along the longitudinal direction of the bottom surface are respectively a first longitudinal curve, a second longitudinal curve, a third longitudinal curve, a fourth longitudinal curve, a fifth longitudinal curve, a sixth longitudinal curve and a seventh longitudinal curve; the 7 transverse curves are respectively a first transverse curve, a second transverse curve, a third transverse curve, a fourth transverse curve, a fifth transverse curve, a sixth transverse curve and a seventh transverse curve from one side to the other side of the transverse direction of the bottom surface; the projection lines of the 7 longitudinal curves and the 7 transverse curves on the bottom surface respectively divide the bottom surface curves into 8 equal parts along the longitudinal direction and the transverse direction;
angle of refraction, left side portion, angle of refraction of light emitted from light source through seventh longitudinal curveThe value range is 0-9.37 degree gradual change, the right side part, the angle +.>The value range is 0-9.37 degree gradual change; the angle of refraction of the light emitted by the light source through the first longitudinal curve, the left part, the angle +.>The value range is 0-8.99 degree gradual change, the right side part, the angle +.>The value range is 0-9.32 degree gradual change;
angle of refraction of light emitted from the light source through the sixth longitudinal curve, left side portion, angleThe value range is 0-9.35 degree gradual change, the right side part, the angle +.>The value range is 0-9.35 degree gradual change; the angle of refraction of the light emitted by the light source through the second longitudinal curve, the left part, the angle +.>The value range is 0-9.23 degree gradual change, the right side part, the angle +.>The value range is 0-9.25 degree gradual change;
angle of refraction, left side portion, angle of refraction of light emitted from light source through fifth longitudinal curveThe value range is 0-9.26 degree gradual change, the right side part, the angle +.>The value range is 0-9.26 degree gradual change; the angle of refraction of the light emitted by the light source, left-hand part, angle +.>The value range is less than or equal to 9.15 degree gradient, the right part is provided with an angle +.>The value range is 0-9.15 degree gradual change;
angle of refraction of light emitted from the light source through the fourth longitudinal curve, left side portion, angleThe value range is 0-9.15 degree gradual change, the right side part, the angle +.>The value range is 0-9.15 degree gradual change;
angle of refraction of light emitted from the light source through the first and seventh transverse curves, left side part, angleThe value range is 0-7.01 degree gradual change, the right side part, the angle +.>The value range is less than or equal to 0.17 degree gradual change;
the refraction angle of the light emitted by the light source and emitted by the second and sixth transverse curves, the left part and the angleThe value range is 0-6.91 degrees gradually changed, the right part is provided with an angle +.>The value range is less than or equal to 0.17 degree gradual change;
the refraction angle of the light emitted by the light source and emitted by the third and fifth transverse curves, the left part and the angleThe value range is 0-6.87 degrees gradually changed, the right part is provided with an angle +.>The value range is less than or equal to 0.17 degree gradual change;
angle of refraction of light emitted from the light source through the fourth transverse curve, left side portion, angleThe value range is 0-6.86 degree gradually changed, the right side part is provided with an angle +.>The value range is less than or equal to 0.17 degree gradual change.
2. The LED automotive headlamp with an integrally structured optical lens according to claim 1, wherein the bottom surface has a circular structure with a diameter D1 of 20-40mm.
3. The LED automotive headlamp with an integrally structured optical lens of claim 1, wherein the height H1 of the total camber ranges from 30 to 50mm.
4. The LED automotive headlamp with an integrally structured optical lens of claim 3, wherein the height of the highest point of the first longitudinal curve is 20-30 mm.
5. The LED automotive headlamp with an integrally structured optical lens according to claim 1, wherein the length D2 of both ends of the first longitudinal curve is 30 to 38mm.
6. The LED automotive headlamp with the integrally structured optical lens of claim 1, wherein the curved surfaces formed by the first, second, third and fourth longitudinal curves and the first, second, third and fourth transverse curves and the bottom surface curves are cut-off line controlling curved surfaces.
7. The LED automotive headlamp with the integrally structured optical lens of claim 1, wherein the curved surfaces formed by the first, second, third and fourth longitudinal curves and the fourth, fifth transverse curves and the bottom surface curves are the curved surfaces controlling the transition area.
8. The LED automotive headlamp with the integrally structured optical lens of claim 1, wherein the curved surfaces formed by the first, second, third and fourth longitudinal curves, the fifth, sixth and seventh transverse curves and the bottom surface curve are curved surfaces for controlling the right protruding light spot area.
9. The LED automotive headlamp with the integrally structured optical lens of claim 1, wherein the curved surfaces formed by the fourth, fifth, sixth and seventh longitudinal curves and the first, second, third, fourth, fifth, sixth and seventh transverse curves and the bottom curves are the curved surfaces of the control main illumination spot area.
10. The LED automotive headlamp with an integrally structured optical lens of claim 1, wherein the light source is 1-5mm below the bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611226893.7A CN107062116B (en) | 2016-12-27 | 2016-12-27 | LED automobile headlamp with integral structure optical lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611226893.7A CN107062116B (en) | 2016-12-27 | 2016-12-27 | LED automobile headlamp with integral structure optical lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107062116A CN107062116A (en) | 2017-08-18 |
| CN107062116B true CN107062116B (en) | 2024-01-12 |
Family
ID=59624474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611226893.7A Active CN107062116B (en) | 2016-12-27 | 2016-12-27 | LED automobile headlamp with integral structure optical lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107062116B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108036278A (en) * | 2018-01-04 | 2018-05-15 | 上海小糸车灯有限公司 | Optical lens and car light |
| CN108626696B (en) * | 2018-05-25 | 2023-09-26 | 常州星宇车灯股份有限公司 | Lens with micro-stripe structure and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534378A (en) * | 2014-07-21 | 2015-04-22 | 上海开腾信号设备有限公司 | Area-corresponding pointing light-distribution type LED lamp of ground transportation tool |
| CN104964247A (en) * | 2015-06-16 | 2015-10-07 | 郭萌 | Optical lens |
| CN105358902A (en) * | 2013-06-26 | 2016-02-24 | 市光工业株式会社 | Vehicle lamp fitting |
| CN206386844U (en) * | 2016-12-30 | 2017-08-08 | 中山市富同晟科技有限公司 | Automotive LED headlamp with overall structure optical lens |
| CN206386842U (en) * | 2016-12-27 | 2017-08-08 | 中山市富同晟科技有限公司 | Automotive LED headlamp with overall structure optical lens |
-
2016
- 2016-12-27 CN CN201611226893.7A patent/CN107062116B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105358902A (en) * | 2013-06-26 | 2016-02-24 | 市光工业株式会社 | Vehicle lamp fitting |
| CN104534378A (en) * | 2014-07-21 | 2015-04-22 | 上海开腾信号设备有限公司 | Area-corresponding pointing light-distribution type LED lamp of ground transportation tool |
| CN104964247A (en) * | 2015-06-16 | 2015-10-07 | 郭萌 | Optical lens |
| CN206386842U (en) * | 2016-12-27 | 2017-08-08 | 中山市富同晟科技有限公司 | Automotive LED headlamp with overall structure optical lens |
| CN206386844U (en) * | 2016-12-30 | 2017-08-08 | 中山市富同晟科技有限公司 | Automotive LED headlamp with overall structure optical lens |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107062116A (en) | 2017-08-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20090073710A1 (en) | Illumination system and vehicular headlamp | |
| CN108397746B (en) | Far and near light system and car light based on light guide | |
| CN101858565B (en) | Headlamp reflection cup, headlamp and motor vehicle | |
| CN104296044B (en) | A kind of RGB laser car light based on diffraction element | |
| CN101858550A (en) | LED light source of dipped headlamp of automobile, with cut-off line | |
| US20170146209A1 (en) | Vehicle headlamp | |
| CN107062116B (en) | LED automobile headlamp with integral structure optical lens | |
| MX2011005143A (en) | Mount for an illumination source. | |
| CN106989342B (en) | Far and near integrated LED headlamp | |
| CN102679254A (en) | Optical system for high-power LED (Light Emitting Diode) dipped headlight | |
| KR20120090674A (en) | Lighting device having the multi reflector | |
| CN207350120U (en) | Far and near one LED headlamps | |
| CN101881392B (en) | Lamp and reflector thereof | |
| CN201885116U (en) | LED headlights | |
| CN103453419A (en) | Automobile low-beam light capable of forming vivid cut-off lines | |
| KR20130097951A (en) | Lens of lighting apparatus | |
| CN102853356A (en) | Method for controlling hot spot of car lamp by using lens imaging | |
| CN206647929U (en) | A complex optical system LED car headlight | |
| KR20150032504A (en) | Led road lamp | |
| JP2011134548A (en) | Vehicular headlight | |
| CN210441140U (en) | Lighting assembly | |
| CN210107265U (en) | Lighting assembly | |
| CN110332497B (en) | Lighting assembly | |
| CN210004315U (en) | LED module lens | |
| KR20050032606A (en) | Increasing the discharge arc diffuseness in mercury-free gas discharge lamps |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |