CN107448781A - A kind of LED collimation Uniform Illumination structure and its implementation for rectangle vehicle light shape - Google Patents
A kind of LED collimation Uniform Illumination structure and its implementation for rectangle vehicle light shape Download PDFInfo
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- CN107448781A CN107448781A CN201710676366.4A CN201710676366A CN107448781A CN 107448781 A CN107448781 A CN 107448781A CN 201710676366 A CN201710676366 A CN 201710676366A CN 107448781 A CN107448781 A CN 107448781A
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- 238000005286 illumination Methods 0.000 title claims abstract description 65
- 230000003287 optical effect Effects 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 13
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 3
- 238000000465 moulding Methods 0.000 abstract description 7
- 230000004907 flux Effects 0.000 abstract description 4
- 239000006185 dispersion Substances 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
-
- 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
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
-
- 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
- F21V5/045—Refractors for light sources of lens shape the lens having discontinuous faces, e.g. Fresnel lenses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Abstract
A kind of implementation method of LED collimation Uniform Illumination for rectangle vehicle light shape, described implementation method are realized by the longitudinal focusing collimation to vehicle light shape and lateral divergence collimation；A kind of LED collimation Uniform Illumination structure for rectangle vehicle light shape, include：The lens (1) that are set centered on the optical centre of LED light source and the collimation tooth (2) for being laid in lens front；The plane of incidence of the lens (1) scans generation by the semi arch of longitudinal collimation plane transversely；The exit facet of light is formed by the diverging face of transverse direction along vertical direction stretching.Then it is bundled into entity according to technological requirement width.A kind of LED collimation Uniform Illumination structure and its implementation for rectangle vehicle light shape of the present invention, there is provided a kind of illumination for being satisfied with moulding, on the basis of not increasing the setting of LED numbers, not increasing cost, improve luminous flux utilization rate.
Description
Technical field
The invention belongs to LED car lamp lighting field, and in particular to a kind of LED collimation for rectangle vehicle light shape is uniformly shone
Bright structure and its implementation.
Background technology
Concentrator is usually a circular configuration, consistent in the condenser performance of two vertical dimensions, when applied to slender type
During moulding, effective rate of utilization is low, and needs plurality of LEDs.Usually used concentrator in the design process, due to moulding reason,
The effective coverage used is inscribe rectangle, therefore the efficiency of actual of concentrator is relatively low.The length of concentrator covering is rectangle
The long side in region, limited length, length limited is in the radius of concentrator, therefore, it is necessary to plurality of LEDs goes to meet moulding.
The patent application of Application No. 2014108405398, a kind of LED remote illuminations optical alignment system is disclosed, wrapped
LED area light source, non-spherical lens and Fresnel Lenses are included, the non-spherical lens is located at the LED area light source and Fresnel
Between lens, the center of the LED area light source, non-spherical lens and Fresnel Lenses is conllinear, the LED area sources and institute
The distance for stating non-spherical lens is 0-1000mm.
The patent application of Application No. 2014800657365 discloses a kind of LED light source automatic illuminating apparatus, has one
There is the elongated optical collimator/blender/integrator on multiple sides, it has receiving lens and output lens, and both of which has
Protecting component is revealed, wherein acceptance division leakage protecting component is nested in output section leakage protecting component.Described elongated product
Divide utensil to have square input section and hexagon or octagonal output section, and be tapered so that input section is less than defeated
Go out section.
The patent application of Application No. 2016110803161, it is accurate to disclose a kind of LED with refractor and reflector
Straight illumination optics device, including refractor, reflector, first surface, the second curved surface, the 3rd curved surface, the 4th curved surface, the 5th song
Face, the 6th curved surface, the 7th curved surface, the 8th curved surface, zigzag face, the tenth curved surface, the 11st curved surface and the 12nd curved surface, first is bent
Face is rotational symmetry free form surface, and the second curved surface is that semicircle fills plane, and the 3rd curved surface is rotational symmetry free form surface, the 4th curved surface
It is the face of cylinder with the 5th curved surface, the 6th curved surface is rotation asymmetry free form surface, and the 8th curved surface and zigzag face are reflection
Free form surface.
The content of the invention
To solve problem above, there is provided a kind of illumination for being satisfied with moulding, do not increasing the setting of LED numbers, do not increasing
Luminous flux utilization rate is improved on the basis of cost, the invention provides a kind of LED collimation for rectangle vehicle light shape uniformly to shine
Bright structure and its implementation, its technical scheme are specific as follows：
A kind of LED collimation Uniform Illumination structure for rectangle vehicle light shape, it is characterised in that include：With LED light source
Optical centre centered on the lens (1) that set and the collimation tooth (2) for being laid in lens front；
The plane of incidence of the lens (1) scans generation by the semi arch of longitudinal collimation plane transversely；The exit facet of light by
Horizontal diverging face forms along vertical direction stretching.Then it is bundled into entity according to technological requirement width.
According to a kind of LED collimation Uniform Illumination structure for rectangle vehicle light shape of the present invention, it is characterised in that：
First free form surface of described formation rectangular configuration width focussed collimated is by 5 sections of continuous curved sections structures
Into；
First paragraph curved sections are the Fresnel surface section set centered on optical centre；
Second and third section of free form surface section is to be symmetricly set in the straight section at first paragraph free form surface section both ends；
Fourth, fifth section of free form surface section is to be symmetricly set in the parabolic segment at second and third section of free form surface section both ends；
Light focuses on to form the first directional light via Fresnel surface section；It is accurate via the collective effect of straightway and parabolic segment
Directly illumination light is formed into the second directional light, the first directional light and the second directional light.
According to a kind of LED collimation Uniform Illumination structure for rectangle vehicle light shape of the present invention, it is characterised in that：
Second free form surface of described formation rectangular configuration length direction diverging includes along the light direction of propagation successively
The sphere and curve exit facet of setting；In the top of curve exit facet, collimation tooth (2) is set；
Via arrival curve exit facet completes the divergence of beam of length direction again after sphere, the light for completing diverging passes through light again
Directional light is collimated into by collimation tooth.
According to a kind of LED collimation Uniform Illumination structure for rectangle vehicle light shape of the present invention, it is characterised in that：
The collimation tooth is by centrally disposed area and is symmetrically connected at the side section setting area at centrally disposed area both ends and forms；
Described centrally disposed area is arranged to Fresnel surface；
Described side section setting area is arranged to the serrated face of tooth degree gradual change.
According to a kind of LED collimation Uniform Illumination structure for rectangle vehicle light shape of the present invention, it is characterised in that：
The focus of the parabolic segment is determined by the reverse extending line intersection point of the refracted light of straight section two-end-point.
According to a kind of LED collimation Uniform Illumination structure for rectangle vehicle light shape of the present invention, it is characterised in that：
Described curve exit facet to dissipate the light in 0 ° -60 ° illumination,
The higher limit of the angle partly declines the distances of angle and lens and collimation tooth according to LED, can make ± [0 °, 10 °] scope
Interior fine setting.
According to a kind of LED collimation Uniform Illumination structure for rectangle vehicle light shape of the present invention, it is characterised in that：
Described curve exit facet is made up of the first curve exit facet, the second curve exit facet and the 3rd curve exit facet,
The first curve exit facet is dissipating the light in 0 ° -15 ° illumination；
The second curve exit facet is dissipating the light in 15 ° -30 ° illumination；
The 3rd curve exit facet is dissipating the light in 30 ° -60 ° illumination.
A kind of implementation method of LED collimation Uniform Illumination for rectangle vehicle light shape, it is characterised in that：
Described implementation method is realized by the longitudinal focusing collimation to vehicle light shape and lateral divergence collimation；
Comprise the following steps：
S1：According to technological requirement, Fresnel surface is set centered on LED optical centre；
S2：Using two end points of Fresnel surface as starting point, the straight flange for meeting technological requirement is set；
S3：The profile formed to Fresnel surface and straight flange carries out ray tracing, to determine that light passes through straight flange two-end-point
Path；
S4：The light reverse extending of straight flange two-end-point will be passed through, determine the intersection point of reverse extending line；
S5：The intersection point for setting reverse extending line is parabolical focus, with this determination parabola；
S6：By described parabola, straight flange and Fresnel surface form the plane of incidence around half circular sweep of vertical direction；
S7：Using ray tracing, design to the free form surface of lateral divergence LED light illumination；And set cooperation should be certainly
By curved surface, the collimation tooth to light collimation.
According to a kind of implementation method of LED collimation Uniform Illumination for rectangle vehicle light shape of the present invention, its feature exists
In：
Step S7 also includes：In LED light source and to set one between the free form surface of lateral divergence LED light illumination
Circle, light after the circle via reaching free form surface.
According to a kind of implementation method of LED collimation Uniform Illumination for rectangle vehicle light shape of the present invention, its feature exists
In：
In step S7, the free form surface to diverging LED illuminance is from right successively to both sides centered on optical axis
The first surface section, the second curved sections and the 3rd curved sections for claiming to set are formed,
The first surface section is dissipating the light in 0 ° -15 ° illumination；
Second curved sections are dissipating the light in 15 ° -30 ° illumination；
3rd curved sections are dissipating the light in 30 ° -60 ° illumination.
A kind of LED collimation Uniform Illumination structure and its implementation for rectangle vehicle light shape of the present invention, there is provided
A kind of illumination for being satisfied with moulding, on the basis of not increasing the setting of LED numbers, not increasing cost, improve luminous flux utilization
Rate.
Brief description of the drawings
Fig. 1 is the step flow chart of the present invention；
Fig. 2 is the structural representation sectional view of the present invention；
Fig. 3 is the structural representation bottom view of the present invention；
Fig. 4 is the lateral divergence collimated light line chart in the present invention；
Fig. 5 is the longitudinal focusing collimated ray sectional view in the present invention.
In figure, 1 is lens；2 are defined straight-tooth.
Embodiment
Below, a kind of LED for rectangle vehicle light shape according to specification drawings and specific embodiments to the present invention
Collimation Uniform Illumination structure and its implementation are further described in detail.
A kind of LED collimation Uniform Illumination structure for rectangle vehicle light shape as shown in Fig. 2,3,4,5, includes：With
The lens (1) that are set centered on the optical centre of LED light source and the collimation tooth (2) for being laid in lens front；
The plane of incidence of the lens (1) scans generation by the semi arch of longitudinal collimation plane transversely；The exit facet of light by
Horizontal diverging face forms along vertical direction stretching.Then it is bundled into entity according to technological requirement width.
Wherein,
First free form surface of described formation rectangular configuration width focussed collimated is by 5 sections of continuous curved sections structures
Into；
First paragraph curved sections are the Fresnel surface section set centered on optical centre；
Second and third section of free form surface section is to be symmetricly set in the straight section at first paragraph free form surface section both ends；
Fourth, fifth section of free form surface section is to be symmetricly set in the parabolic segment at second and third section of free form surface section both ends；
Light focuses on to form the first directional light via Fresnel surface section；It is accurate via the collective effect of straightway and parabolic segment
Directly illumination light is formed into the second directional light, the first directional light and the second directional light.
Wherein,
Second free form surface of described formation rectangular configuration length direction diverging includes along the light direction of propagation successively
The sphere and curve exit facet of setting；In the top of curve exit facet, collimation tooth (2) is set；
Via arrival curve exit facet completes the divergence of beam of length direction again after sphere, the light for completing diverging passes through light again
Directional light is collimated into by collimation tooth.
Wherein,
The collimation tooth is by centrally disposed area and is symmetrically connected at the side section setting area at centrally disposed area both ends and forms；
Described centrally disposed area is arranged to Fresnel surface；
Described side section setting area is arranged to the serrated face of tooth degree gradual change.
Wherein,
The focus of the parabolic segment is determined by the reverse extending line intersection point of the refracted light of straight section two-end-point.
Wherein,
Described curve exit facet to dissipate the light in 0 ° -60 ° illumination,
The higher limit of the angle partly declines the distances of angle and lens and collimation tooth according to LED, can make ± [0 °, 10 °] scope
Interior fine setting.
Wherein,
Described curve exit facet is made up of the first curve exit facet, the second curve exit facet and the 3rd curve exit facet,
The first curve exit facet is dissipating the light in 0 ° -15 ° illumination；
The second curve exit facet is dissipating the light in 15 ° -30 ° illumination；
The 3rd curve exit facet is dissipating the light in 30 ° -60 ° illumination.
A kind of implementation method of LED collimation Uniform Illumination for rectangle vehicle light shape as shown in Figure 1,
Realized by the longitudinal focusing collimation to vehicle light shape and lateral divergence collimation；
Comprise the following steps：
S1：According to technological requirement, Fresnel surface is set centered on LED optical centre；
S2：Using two end points of Fresnel surface as starting point, the straight flange for meeting technological requirement is set；
S3：The profile formed to Fresnel surface and straight flange carries out ray tracing, to determine that light passes through straight flange two-end-point
Path；
S4：The light reverse extending of straight flange two-end-point will be passed through, determine the intersection point of reverse extending line；
S5：The intersection point for setting reverse extending line is parabolical focus, with this determination parabola；
S6：By described parabola, straight flange and Fresnel surface form the plane of incidence around half circular sweep of vertical direction；
S7：Using ray tracing, design to the free form surface of lateral divergence LED light illumination；And set cooperation should be certainly
By curved surface, the collimation tooth to light collimation.
Wherein,
Step S7 also includes：In LED light source and to set one between the free form surface of lateral divergence LED light illumination
Circle, light after the circle via reaching free form surface.
Wherein,
In step S7, the free form surface to diverging LED illuminance is from right successively to both sides centered on optical axis
The first surface section, the second curved sections and the 3rd curved sections for claiming to set are formed,
The first surface section is dissipating the light in 0 ° -15 ° illumination；
Second curved sections are dissipating the light in 15 ° -30 ° illumination；
3rd curved sections are dissipating the light in 30 ° -60 ° illumination.
Principle illustrates
To improve the energy utilization efficiency of concentrator and reducing LED numbers, the present invention has carried out secondary in transverse direction to light beam
Diverging, number is used to reduce LED；Energy dissipation is reduced in the mode longitudinally through collimated light beam.Its basic component
It is a lateral divergence, the lens longitudinally collimated and a collimation tooth.Lateral divergence, the lens moulding longitudinally collimated are changeable, main
Syllabus is the dispersion angle for increasing LED.Collimation tooth is that many collimations roll over faces close to LED one side, and another side then can be with
It is any shape, can is that plane can also be curved surface, the requirement of regulation can be reached by designing optical patterns.
Described lens and collimation tooth could be arranged to two separated structures, can also be in the side of the two optical elements
Face sets attachment structure, to better control over light refraction, free form surface can be segmented and leaned in LED dispersion angles big region
Nearly LED, the technical program are intended to LED luminous flux to concentrate in the light-emitting area of slender type rectangle, laterally first by certainly
By curved surface, LED light emission direction is changed, in the refraction of the region increasing light of low-angle, is gradually reduced in the region of wide-angle
The deviation angle of light, make LED consistent in the intensity of illumination of each angle, then by collimating tooth, transmitting anaclasis into parallel
Light；Secondly, the concentration structure in longitudinal design, LED diverging light elder generation focussed collimated in shorter region.It is specific as follows：
The design main function of longitudinal direction is to realize the convergence for energy.
Design procedure：
1. choosing LED optical centre, the Fresnel surface (size of Fresnel surface, depending on defeated is designed centered on optical centre
Enter condition to determine), LED scattering light convergence is got up.
2. the straight flange (drafting angle) for meeting processing request is done as starting point using two edges of concentrator.
3. setting material properties, ray tracing is carried out to above-mentioned profile.
4. choosing the refracted light at flanging both ends, reverse extending is met at a bit.
5. using the point as focus, parabola is set, the A/F of the parabolical specific light fixture of focal length is determined.
6. centered on LED optical point, plane is to being referred to as the parabola of another side
7. 3 segment structures connecting without coincidence be exactly X to planing surface figure.
Transverse design：
Horizontal mentality of designing is：, the dispersion angle of increasing light different from the refractive index of material by air.Consider
Only light from optically denser medium enter optically thinner medium when, refraction angle can just increase, moreover, using the center of circle be end points light through circle
When, the propagation path of light will not change.So in design, a circle is designed in light incidence end first, allows light
Into optically denser medium, then when light is emitted from optically denser medium, exit facet is designed to free curve, the diverging of increasing light
Angle.
For many LED, angle of partly declining is typically 30 degree, and the energy of LED low-angles is larger, as diffusion angle increases, energy
Amount reduces.Then segment design has been carried out for exit facet：In LED emergent light low-angle region, one section of free curve is designed, should
Section curve is to increase LED dispersion angle, and for the free curve in design, the region of low-angle, light refraction angle degree is big,
Then it is gradually reduced, free curve is on LED light Central Symmetry.
Do the plane that two angles are θ and block No. 3 free curves in upper figure, retain the part of interconnection, then to cutting
The curve to get off carries out rounding (size of fillet is finely tuned by simulation).Then second segment free curve, this section of freedom are done
The trend of curve is to be gradually reduced the deviation angle of refraction light.First do on one side, symmetric data is then made with LED optical centres.
By optical analog, suitable second segment curve point of cut-off is evaluated.Curve is blocked with point of cut-off, by light analog form,
The plane for designing the 3rd section of region blocks curve.After the blank design of lens component is completed, start to design matching standard
Straight-tooth.The distance of collimation tooth and lens needs to depend on the circumstances, and for same lens, both distances are bigger, light beam transversal
Diffusion length is longer, and therefore, 3 sections of specific designs of lens need to be designed by the condition inputted, and collimate tooth and be also required to
It is designed by ray tracing subregion.
The design principle for collimating tooth is exactly the light that lens are reflected, and by refraction, changes over directional light.Intermediate region
Collimation tooth devise Fresnel surface, the collimation tooth on both sides by light refraction principle and total reflection principle.
Claims (10)
1. a kind of LED collimation Uniform Illumination structure for rectangle vehicle light shape, it is characterised in that include：With LED light source
The lens (1) that are set centered on optical centre and the collimation tooth (2) for being laid in lens front；
The plane of incidence of the lens (1) scans generation by the semi arch of longitudinal collimation plane transversely；The exit facet of light is by transverse direction
Diverging face along vertical direction stretching form, be then bundled into entity according to technological requirement width.
2. a kind of LED collimation Uniform Illumination structure for rectangle vehicle light shape according to claim 1, its feature exist
In：
First free form surface of described formation rectangular configuration width focussed collimated is made up of 5 sections of continuous curved sections；
First paragraph curved sections are the Fresnel surface section set centered on optical centre；
Second and third section of free form surface section is to be symmetricly set in the straight section at first paragraph free form surface section both ends；
Fourth, fifth section of free form surface section is to be symmetricly set in the parabolic segment at second and third section of free form surface section both ends；
Light focuses on to form the first directional light via Fresnel surface section；It is collimated into via the collective effect of straightway and parabolic segment
Second directional light, the first directional light and the second directional light form illumination light.
3. a kind of LED collimation Uniform Illumination structure for rectangle vehicle light shape according to claim 1, its feature exist
In：
Second free form surface of described formation rectangular configuration length direction diverging includes to be set gradually along the light direction of propagation
Sphere and curve exit facet；In the top of curve exit facet, collimation tooth (2) is set；
Light completes the light of diverging again via standard via arrival curve exit facet completes the divergence of beam of length direction again after sphere
Straight-tooth is collimated into directional light.
4. a kind of LED collimation Uniform Illumination structure for rectangle vehicle light shape according to claim 1, its feature exist
In：
The collimation tooth is by centrally disposed area and is symmetrically connected at the side section setting area at centrally disposed area both ends and forms；
Described centrally disposed area is arranged to Fresnel surface；
Described side section setting area is arranged to the serrated face of tooth degree gradual change.
5. a kind of LED collimation Uniform Illumination structure for rectangle vehicle light shape according to claim 2, its feature exist
In：
The focus of the parabolic segment is determined by the reverse extending line intersection point of the refracted light of straight section two-end-point.
6. a kind of LED collimation Uniform Illumination structure for rectangle vehicle light shape according to claim 3, its feature exist
In：
Described curve exit facet to dissipate the light in 0 ° -60 ° illumination,
The higher limit of the angle partly declines the distances of angle and lens and collimation tooth according to LED, can make in the range of ± [0 °, 10 °]
Fine setting.
7. a kind of LED collimation Uniform Illumination structure for rectangle vehicle light shape according to claim 6, its feature exist
In：
Described curve exit facet is made up of the first curve exit facet, the second curve exit facet and the 3rd curve exit facet,
The first curve exit facet is dissipating the light in 0 ° -15 ° illumination；
The second curve exit facet is dissipating the light in 15 ° -30 ° illumination；
The 3rd curve exit facet is dissipating the light in 30 ° -60 ° illumination.
A kind of 8. implementation method of LED collimation Uniform Illumination for rectangle vehicle light shape, it is characterised in that：
Described implementation method is realized by the longitudinal focusing collimation to vehicle light shape and lateral divergence collimation；
Comprise the following steps：
S1：According to technological requirement, Fresnel surface is set centered on LED optical centre；
S2：Using two end points of Fresnel surface as starting point, the straight flange for meeting technological requirement is set；
S3：The profile formed to Fresnel surface and straight flange carries out ray tracing, to determine that light passes through the road of straight flange two-end-point
Footpath；
S4：The light reverse extending of straight flange two-end-point will be passed through, determine the intersection point of reverse extending line；
S5：The intersection point for setting reverse extending line is parabolical focus, with this determination parabola；
S6：By described parabola, straight flange and Fresnel surface form the plane of incidence around half circular sweep of vertical direction；
S7：Using ray tracing, design to the free form surface of lateral divergence LED light illumination；And set and coordinate the freedom bent
Face, the collimation tooth to light collimation.
9. a kind of implementation method of LED collimation Uniform Illumination for rectangle vehicle light shape according to claim 8, it is special
Sign is：
Step S7 also includes：In LED light source and to set a circle, light between the free form surface of lateral divergence LED light illumination
Line after the circle via reaching free form surface.
10. a kind of implementation method of LED collimation Uniform Illumination for rectangle vehicle light shape according to claim 8, its
It is characterised by：
In step S7, the free form surface to diverging LED illuminance from symmetrically being set successively centered on optical axis to both sides
First surface section, the second curved sections and the 3rd curved sections put are formed,
The first surface section is dissipating the light in 0 ° -15 ° illumination；
Second curved sections are dissipating the light in 15 ° -30 ° illumination；
3rd curved sections are dissipating the light in 30 ° -60 ° illumination.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020001413A1 (en) * | 2018-06-29 | 2020-01-02 | Valeo Ichikoh (China) Auto Lighting Co. Ltd | Light distribution member, lighting or signaling device and motor vehicle |
| CN111306504A (en) * | 2018-12-11 | 2020-06-19 | Zkw集团有限责任公司 | Lighting device for a motor vehicle |
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| JPH0620505A (en) * | 1992-07-02 | 1994-01-28 | Koito Mfg Co Ltd | Distribution variable headlight |
| CN101078494A (en) * | 2007-06-22 | 2007-11-28 | 清华大学 | Navigation mark lamp unit and its uses |
| CN101684919A (en) * | 2009-07-16 | 2010-03-31 | 江苏伯乐达光电科技有限公司 | Led street lamp lens |
| CN106170728A (en) * | 2014-03-04 | 2016-11-30 | 飞利浦灯具控股公司 | Beam shaping system and the illumination system using it |
| CN106764551A (en) * | 2016-11-30 | 2017-05-31 | 中国人民解放军海军工程大学 | LED collimation illumination optics device with refractor and reflector |
| CN207262071U (en) * | 2017-08-09 | 2018-04-20 | 上海小糸车灯有限公司 | A kind of LED collimation Uniform Illumination structure for rectangle vehicle light shape |
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| WO2020001413A1 (en) * | 2018-06-29 | 2020-01-02 | Valeo Ichikoh (China) Auto Lighting Co. Ltd | Light distribution member, lighting or signaling device and motor vehicle |
| US11047542B2 (en) | 2018-06-29 | 2021-06-29 | Valeo Vision | Light distribution member, lighting or signaling device and motor vehicle |
| CN111306504A (en) * | 2018-12-11 | 2020-06-19 | Zkw集团有限责任公司 | Lighting device for a motor vehicle |
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