CN102252266B - Light-emitting diode (LED) lens of automobile - Google Patents
Light-emitting diode (LED) lens of automobile Download PDFInfo
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- CN102252266B CN102252266B CN2011101839195A CN201110183919A CN102252266B CN 102252266 B CN102252266 B CN 102252266B CN 2011101839195 A CN2011101839195 A CN 2011101839195A CN 201110183919 A CN201110183919 A CN 201110183919A CN 102252266 B CN102252266 B CN 102252266B
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- cylindrical mirror
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Abstract
The invention relates to a light-emitting diode (LED) lens of an automobile. The LED lens is in a cup shape; an LED lamp bead installation hole is reserved in the center of a cup holder; a top surface of the lens consists of two groups of cylindrical mirrors; the two groups of cylindrical mirrors are distributed in a vertical form, a horizontal form or a uniformly or non-uniformly alternated form on the top surface of the lens; one group of cylindrical mirrors is distributed in the longitudinal direction on the top surface of the lens, and the distribution position of the other group of cylindrical mirrors rotates clockwise by 1 to 70 DEG relative to the previous group; and the top surface of the lens is a flat surface or an annular stepped surface which is gradually recessed from the outside to the center. Lower beam light spots formed on the LED lens have a clear cut-off line with dark top and bright bottom, and the right end, namely a horizontal vertical (HV) point, of the cut-off line rotates upwards by 15 or 45 DEG.
Description
Technical field
The present invention relates to the LED lens arrangement, be specifically related to the secondary lens structure of LED.
Background technology
The function of LED lens is that the lighting angle with led light source again converges light and becomes the angle of wanting arbitrarily between 5 ° to 160 °, and the distribution of light field mainly can be divided into: circular, oval, rectangle.The secondary lens material is generally used optical grade PMMA or PC, can select glass under special circumstances.
The dipped beam hot spot of automobile requires to have to go up bright lower dark "cut-off"line clearly, and "cut-off"line left end level, and right-hand member is that HV point place rotates up 15 ° or 45 °.And existing LED secondary lens can't reach this requirement.
The utility model content
The object of the invention is to the deficiency for the prior art existence, propose a kind of automobile LED lens, be used for obtaining to meet the dipped beam hot spot of above-mentioned requirements.
Technical scheme of the present invention is as follows:
Automobile LED lens, its profile are cup-shaped, namely its side surface be by parabola along Lamp cup axially revolution and the parabolic reflector that forms, or axially turned round and the ball-type reflecting surface that forms along Lamp cup by one section circular arc line; Or free form surface.Leave LED lamp pearl installing hole at the center of cup, Kong Dingwei lenticular lens or single face convex lens structures or the planar structure of LED lamp pearl installing hole.
The end face that the invention is characterized in described lens is made of two groups of cylindrical mirrors, and one group of cylindrical mirror vertically distributes, another the group cylindrical mirror with respect to last group of cylindrical mirror to 1 ° of-70 ° of distribution that turns clockwise.Like this, vertically the distribute cylindrical mirror of (vertically arranging during use) of lens end face can stretch the hot spot horizontal direction, then hot spot can be rotated 1 °～70 ° directions stretchings with vertical direction to vertical direction to clockwise direction to the cylindrical mirror that clockwise direction rotates 1 °～70 ° of arrangements, thereby obtain the desirable hot spot of automobile short-distance demand, namely the horizontal right-hand member of left end rotates up 15 ° or 45 °.
The distributing position of described two groups of cylindrical mirrors on the end face of lens can have various ways, can be by distributing up and down, or distribute about pressing, or with even or inhomogeneous alternate formal distribution, can obtain like this hot spot of above effect.
Further, the end face of described lens can be designed to one whole by common custom, uses material in order to save, and weight reduction also can be designed as the annular step scalariform that is caved in step by step by export-oriented center, does not affect the effect of hot spot.
Better go out light effect in order to reach, every group of cylindrical mirror can comprise a plurality of cylindrical mirrors arranged side by side.
In addition, because the bright dipping of lens end face middle body is in a mess, in order to obtain gem-pure "cut-off"line, the middle body of described lens end face is made frosting or coated lighttight lacquer, or blocked by lighttight object, but in order to guarantee standard compliant amount of light, the area of this middle body is less than or equal to 3/4 of the lens end face gross area.
So the lens of employing said structure, the dipped beam hot spot of its formation have goes up dark lower bright "cut-off"line clearly, and the "cut-off"line right-hand member, namely HV point place rotates up 15 ° or 45 °.
Description of drawings
Figure 1A and Figure 1B are the lens arrangement schematic diagrames of the first form.
Fig. 2 A, Fig. 2 B and Fig. 2 C are the lens arrangement schematic diagrames of the second form.
Fig. 3 A and Fig. 3 B are the lens arrangement schematic diagrames of the third form.
Fig. 4 A and Fig. 4 B are the lens arrangement schematic diagrames of the 4th kind of form.
Fig. 5 A and Fig. 5 B are the lens arrangement schematic diagrames of the 5th kind of form.
Fig. 6 A and Fig. 6 B are the lens arrangement schematic diagrames of the 6th kind of form.
Fig. 7 A and Fig. 7 B are the lens arrangement schematic diagrames of the 7th kind of form.
Fig. 8 A and Fig. 8 B are the lens arrangement schematic diagrames of the 8th kind of form.
Fig. 9 is the lens arrangement schematic diagram of the 9th kind of form.
The specific embodiment
The automobile LED lens that the present invention proposes are to adopt the optical material injection mo(u)lding, because the refractive index of optical material can make the incident light that satisfies the cirtical angle of total reflection can realize total reflection greater than airborne refractive index.
Referring to Fig. 1-Fig. 8, the LED lens are the cup-shaped lens of common LED, its side surface be by parabola along Lamp cup axially revolution and the parabolic reflector that forms, or axially turned round and the ball-type reflecting surface that forms along Lamp cup by one section circular arc line; Or free form surface.
Leave LED lamp pearl installing hole 2 at the cup center of described lens, Kong Dingwei lenticular lens or single face convex lens structures or the planar structure of LED lamp pearl installing hole.
The design of these lens will guarantee that the focus on each bar curve overlaps on the reflecting curved surface of lens, and this focus also overlaps with the focus of lenticular lens or single face convex lens.
Structure innovation of the present invention is the design to lens end face 1, and its structure has the multiple concrete form of expression, and Fig. 1-Fig. 8 provides wherein typical several form;
Following various structures form is specifically arranged:
Referring to Figure 1A and Figure 1B, lens end face 1 (i.e. cup top) is one whole, the left-hand component of end face is distributed with first group of cylindrical mirror 11 of longitudinal arrangement, and right-hand component is distributed with the second group of cylindrical mirror 12 that rotates 45 ° of arrangements with respect to the cylindrical mirror on the left side to clockwise direction.
Referring to Fig. 2 A, Fig. 2 B and Fig. 2 C, the lens end face 1 annular step scalariform that caves in step by step in export-oriented center of serving as reasons, its depression causes the Kong Ding plane of LED lamp pearl installing hole 2, the cylindrical mirror that first group of cylindrical mirror 11 of cup top left side distribution longitudinal arrangement, the right are distributed with respect to the left side also can distribute by switch to 12. liang of groups of second group of cylindrical mirror cylindrical mirror that clockwise direction rotates 45 ° of arrangements.
Referring to Fig. 3 A and Fig. 3 B, lens end face 1(cup top) it is one whole, first group of cylindrical mirror 11 longitudinal arrangement that its end face distributes, and be distributed with the second group of cylindrical mirror 12 that rotates 45 ° of arrangements with respect to them to clockwise direction between the cylindrical mirror of the longitudinal arrangement of part on the right.Two kinds of cylindrical mirrors also can distribute by switch.
Referring to Fig. 4 A and Fig. 4 B, lens end face 1(cup top) the annular step scalariform that caves in step by step of the export-oriented center of serving as reasons, at end face first group of cylindrical mirror 11 arranged, their longitudinal arrangements, and be distributed with the second group of cylindrical mirror 12 that rotates 45 ° of arrangements with respect to them to clockwise direction between the cylindrical mirror of the longitudinal arrangement of on the left side part.
Referring to Fig. 5 A and Fig. 5 B, lens end face 1(cup top) it is one whole, there is the recessed step of one-level at the center, be distributed with first group of cylindrical mirror 11 of longitudinal arrangement in the first half of end face, the latter half is distributed with the second group of cylindrical mirror 12 that rotates 45 ° of arrangements with respect to vertical cylindrical mirror to clockwise direction.Two groups of cylindrical mirrors also can distribute by switch.
Referring to Fig. 6 A and Fig. 6 B, lens end face 1(cup top) the annular step scalariform that caves in step by step of the export-oriented center of serving as reasons, the first half of end face is distributed with first group of cylindrical mirror 11 of longitudinal arrangement, and the latter half is distributed with the second group of cylindrical mirror 12 that rotates 45 ° of arrangements with respect to vertical cylindrical mirror to clockwise direction.Two groups of cylindrical mirrors also can distribute by switch.
Referring to Fig. 7 A and Fig. 7 B, lens end face 1(cup top) the annular step scalariform that caves in step by step of the export-oriented center of serving as reasons, be distributed with first group of cylindrical mirror 11 of longitudinal arrangement on whole of end face, and be evenly distributed with between the cylindrical mirror of longitudinal arrangement at the second group of cylindrical mirror 12 that rotates 45 ° of arrangements with respect to vertical cylindrical mirror to clockwise direction.
Referring to Fig. 8 A and Fig. 8 B, lens end face 1(cup top) it is one whole, be distributed with first group of cylindrical mirror 11 of longitudinal arrangement on whole of end face, and be evenly distributed with between the cylindrical mirror of longitudinal arrangement at the second group of cylindrical mirror 12 that rotates 45 ° of arrangements with respect to vertical cylindrical mirror to clockwise direction.
The LED lens of above version, when being in when installing and using state, its longitudinally one group of cylindrical mirror just be in the position vertical with respect to ground, this group cylindrical mirror can stretch the hot spot horizontal direction, and another group vertical direction rotates the cylindrical mirror of 1 °～70 ° of arrangements to clockwise direction, then hot spot can be rotated 1 °～70 ° directions stretchings from vertical direction to clockwise direction, thereby obtain the desirable hot spot of automobile short-distance demand.Be that the horizontal right-hand member of left end rotates up 15 ° or 45 °.
Further, in order to make "cut-off"line more clear, on the basis of above structure, the end face middle body of lens can also be made frosting 13, referring to Fig. 9, or be coated with lighttight lacquer (as pitch-dark) or block with other lighttight object, remove the bright dipping (because the bright dipping of middle body is in a mess) of lens end face middle body and obtain gem-pure "cut-off"line.But this part area that blocks can not surpass 3/4 of the lens end face gross area, the requirement that does not reach national standard in order to avoid the light of losing is too many.
Those skilled in the art should understand; the present invention is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by claims and equivalent thereof.
Claims (1)
1. automobile LED lens, its profile is cup-shaped, leaves LED lamp pearl installing hole at the center of cup; It is characterized in that:
The end face of described lens is made of two groups of cylindrical mirrors, and two groups of cylindrical mirrors become up and down to distribute at the end face of lens, or about distribute, or with even or inhomogeneous alternate formal distribution;
Wherein one group of cylindrical mirror vertically distributes at the lens end face, the distributing position of another group with respect to last group to turning clockwise 45 °;
The end face of described lens is one whole, or the annular step scalariform that caves in step by step of the export-oriented center of serving as reasons;
Every group of cylindrical mirror comprises a plurality of cylindrical mirrors arranged side by side;
The middle body of described lens end face is frosting or coats lighttight lacquer, or blocked by lighttight object, and the area of this middle body is less than or equal to 3/4 of the lens end face gross area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101839195A CN102252266B (en) | 2011-07-02 | 2011-07-02 | Light-emitting diode (LED) lens of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101839195A CN102252266B (en) | 2011-07-02 | 2011-07-02 | Light-emitting diode (LED) lens of automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102252266A CN102252266A (en) | 2011-11-23 |
| CN102252266B true CN102252266B (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101839195A Expired - Fee Related CN102252266B (en) | 2011-07-02 | 2011-07-02 | Light-emitting diode (LED) lens of automobile |
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| CN (1) | CN102252266B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788318B (en) * | 2012-08-30 | 2014-05-07 | 霍永峰 | Lens for light distribution of LED (light emitting diode) lamp and lamp thereof |
| CN105042510A (en) * | 2015-07-31 | 2015-11-11 | 马瑞利汽车零部件(芜湖)有限公司 | LED optical lens |
| CN106369521A (en) * | 2016-09-30 | 2017-02-01 | 马瑞利汽车零部件(芜湖)有限公司 | Automobile headlamp optical system using lens for achieving passing light |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101275725A (en) * | 2007-03-26 | 2008-10-01 | 株式会社小糸制作所 | Lamp unit of vehicle headlight |
| CN101451675A (en) * | 2007-12-04 | 2009-06-10 | 佰鸿工业股份有限公司 | Lens and light source device with the same |
| CN101858550A (en) * | 2010-05-28 | 2010-10-13 | 程兴华 | LED light source of dipped headlamp of automobile, with cut-off line |
| CN101858548A (en) * | 2010-03-23 | 2010-10-13 | 重庆科鹰电气有限公司 | LED luminescent unit and motorcycle LED headlamp light source thereby |
| CN202118807U (en) * | 2011-07-02 | 2012-01-18 | 重庆科鹰电气有限公司 | Automobile LED (light-emitting diode) lens |
-
2011
- 2011-07-02 CN CN2011101839195A patent/CN102252266B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101275725A (en) * | 2007-03-26 | 2008-10-01 | 株式会社小糸制作所 | Lamp unit of vehicle headlight |
| CN101451675A (en) * | 2007-12-04 | 2009-06-10 | 佰鸿工业股份有限公司 | Lens and light source device with the same |
| CN101858548A (en) * | 2010-03-23 | 2010-10-13 | 重庆科鹰电气有限公司 | LED luminescent unit and motorcycle LED headlamp light source thereby |
| CN101858550A (en) * | 2010-05-28 | 2010-10-13 | 程兴华 | LED light source of dipped headlamp of automobile, with cut-off line |
| CN202118807U (en) * | 2011-07-02 | 2012-01-18 | 重庆科鹰电气有限公司 | Automobile LED (light-emitting diode) lens |
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| Publication number | Publication date |
|---|---|
| CN102252266A (en) | 2011-11-23 |
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