CN107339653A - A kind of lens group for high beam illumination - Google Patents
A kind of lens group for high beam illumination Download PDFInfo
- Publication number
- CN107339653A CN107339653A CN201611088799.XA CN201611088799A CN107339653A CN 107339653 A CN107339653 A CN 107339653A CN 201611088799 A CN201611088799 A CN 201611088799A CN 107339653 A CN107339653 A CN 107339653A
- Authority
- CN
- China
- Prior art keywords
- light
- guiding pillar
- high beam
- lens group
- collimating optics
- 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.)
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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
Abstract
The invention discloses a kind of lens group for high beam illumination, including light-guiding pillar and more toroidal lens, the light-guiding pillar is located at the lower section of more toroidal lens, the light that light source is sent is focused on and cast out by more toroidal lens again after passing through the light-guiding pillar, and the light-guiding pillar incidence surface covers all light source luminescent faces；The light-guiding pillar exiting surface is rectangle, and the length-width ratio of rectangular surfaces is 6:1‑2:1；More toroidal lens include collimating optics face, rotation asymmetry optical surface and inclined plane, and the rotation asymmetry optical surface is less than the collimating optics face；The collimating optics face is symmetrically disposed in the both sides of the rotation asymmetry optical surface；The inclined plane is arranged on the edge in the both sides collimating optics face.The present invention adds the technology of toroidal lens using light-guiding pillar, realizes horizontal centre accent light and the lighting demand in other regions of high beam, has dropped the requirement to light source significantly so that whole lamp cost reduces.
Description
Technical field
The present invention relates to lens art, and in particular to a kind of lens group for high beam illumination.
Background technology
LED high beams are widely used in car light industry, and most of its realizes far lighting using reflector or form of lens,
When using common lamp bead as light source, uniform excessive hot spot can not be realized, therefore in order to realize the illumination light of strip
Line, present most of LED light sources using multiple chips solid matter, but using this light source light-source encapsulation cost can be caused high,
Therefore need further to improve prior art.
The content of the invention
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, there is provided a kind of lens for high beam illumination
Group, the lens group realize horizontal centre accent light and the lighting demand in other regions of high beam, dropped significantly to light source
Requirement so that whole lamp cost reduces.
To reach above-mentioned purpose, the technical solution adopted by the present invention is as follows：A kind of lens group for high beam illumination, bag
Include light-guiding pillar and more toroidal lens, the light-guiding pillar is located at the lower section of more toroidal lens, the light of light source after over-light-transferring pole,
In the light-guiding pillar by multiple reflections after, form the hot spot that a cut-off is clear and is evenly distributed, the hot spot is through excessive bent
After the effect of face lens, the position of infinity is imaged in the form of imaging, wherein：
The light-guiding pillar incidence surface covers all light source luminescent faces；The light-guiding pillar exiting surface is rectangle, the length of rectangular surfaces
Wide ratio is 6:1-2:1st, the light-guiding pillar exiting surface is ellipse, and oval major axis is 6 with short axle ratio:1-2:1 or described lead
The exiting surface of light beam is to extending around strip branch on the basis of rectangle；
More toroidal lens include collimating optics face, rotation asymmetry optical surface and inclined plane, the rotation asymmetry
Optical surface is less than the collimating optics face；The collimating optics face is symmetrically disposed in the two of the rotation asymmetry optical surface
Side；Inclined plane connection round and smooth with the collimating optics face is simultaneously arranged on the edge in the both sides collimating optics face.
Preferably, the area of the light-guiding pillar incidence surface is less than the area of exiting surface.
Preferably, the light-guiding pillar side wall and the angle angle that incidence surface is formed are 0 °~20 °.
Preferably, the incidence surface is rectangle, and the length ratio of the height of the light-guiding pillar and incidence surface short side is 2:1-9:
1。
Preferably, the incidence surface for ellipse, the light-guiding pillar it is high short with the incidence surface minimum enclosed rectangle
The ratio of edge lengths is 2:1-9:1.
Preferably, the focus in the collimating optics face is located at before and after the light-guiding pillar exiting surface in the range of 5mm.
Preferably, the collimating optics face uses planoconvex spotlight curved surface or Fresnel lenses.
Preferably, dissipate and penetrate after the light on the rotation asymmetry optical surface horizontal profile is by the light-guiding pillar
Go out；Approximate construction direct projection goes out after the light on the rotation asymmetry optical surface sectional elevation is by the light-guiding pillar.
Preferably, the inclined plane rolls oblique 0.1 °~3 ° outward relative to the collimating optics face.
Preferably, the light source uses the LED light source of multiple chips uniform close arrangement.
Beneficial effects of the present invention：A kind of lens group for high beam illumination of the present invention, curved surface is added using light-guiding pillar
The technology of lens, and the structure and shape of light-guiding pillar and multiaspect lens are combined, realize the horizontal centre accent light of high beam
And the lighting demand in other regions, the requirement to light source has been dropped significantly so that whole lamp cost reduces.
Brief description of the drawings
Fig. 1 is the overall structure diagram of lens group in the embodiment of the present invention one；
Fig. 2 is the overall structure diagram that light-guiding pillar is combined with light source in the embodiment of the present invention one；
Fig. 3 is the overall structure diagram of light-guiding pillar in the embodiment of the present invention one；
Fig. 4 is the front view of more toroidal lens in the embodiment of the present invention one；
Fig. 5 is the left view of more toroidal lens in the embodiment of the present invention one；
Fig. 6 is the horizontal profile index path of more toroidal lens in the embodiment of the present invention one；
Fig. 7 is the sectional elevation index path of more toroidal lens in the embodiment of the present invention one；
Fig. 8 is the schematic diagram in the more toroidal lens faces of oblique light in the embodiment of the present invention one；
Fig. 9 is the overall structure diagram of light-guiding pillar in the embodiment of the present invention two；
Figure 10 is the top view of light-guiding pillar in the embodiment of the present invention two；
Figure 11 is the hot spot figure for the lens group that the present invention is used for high beam illumination；
Figure 12 is the hot spot figure for the lens group that the present invention is used for high beam illumination.
Embodiment
The embodiment of the present invention is described further below in conjunction with the accompanying drawings.
Embodiment one
Referring to Fig. 1 to Fig. 8, a kind of lens group for high beam illumination, including light-guiding pillar 1 and more toroidal lens 2 and light
Source 3, the LED light source that the light source 3 is arranged using multiple chips uniform close；The light-guiding pillar 1 is located under more toroidal lens 2
Side, the light that light source 3 is sent are focused on and cast out by more toroidal lens 2 again after passing through the light-guiding pillar 1, wherein：
The light of light source 3 is after over-light-transferring pole 1, after light-guiding pillar 1 is interior by multiple reflections, can form a cut-off clearly and distribution is equal
Even hot spot, the hot spot can be imaged on the position of infinity after the effect of excessive toroidal lens 2 in the form of being imaged, so as to
Reach headlight for vehicles cut-off clearly to require.
The incidence surface 11 of light-guiding pillar 1 covers all light-emitting areas of light source 3；The light-guiding pillar exiting surface 12 is rectangle, rectangle
The length-width ratio in face is 6:1-2:1st, the respective shapes of the exiting surface 12 and corresponding length-width ratio are remote suitable for automobile for being formed
The strip hot spot of light lamp lighting demand.
More toroidal lens 2 include collimating optics face 21, the and of rotation asymmetry optical surface 22 that light collection gets up
Inclined plane 23, the rotation asymmetry optical surface 22 are less than the collimating optics face 21；The collimating optics face 21 is symmetrically set
Put in the both sides of the rotation asymmetry optical surface 22；The inclined plane 23 and the 21 round and smooth connection of collimating optics face are simultaneously set
In the edge in the both sides collimating optics face 21, the collimating optics face 21, rotation asymmetry optical surface 22 and inclined plane 23
Planoconvex spotlight curved surface or Fresnel lenses are used, for realizing the lighting demand in dazzle light horizontal centre region.
The area of the light-guiding pillar incidence surface 11 is more than the area of exiting surface 12, the light-guiding pillar side wall 13 and incidence surface 11
The angle angle of formation is 0 °~20.The incidence surface 11 is rectangle, and the length of the height and the short side of incidence surface 11 of the light-guiding pillar
Degree is than being 2:1-9:1 or the incidence surface 11 be ellipse, the minimum external square of the high and incidence surface 11 of the light-guiding pillar
The ratio of the bond length of shape is 2:1-9:1.When the height of the light-guiding pillar 1 is small with the ratio of the bond length of light-guiding pillar incidence surface 11
In 2:When 1, the gap of breach or the multiple chips discharge of light source chip will be presented on irradiation hot spot through excessive toroidal lens 2,
Influence illuminating effect；When the ratio of the length of light-guiding pillar 1 and the bond length of 1 incidence surface of light-guiding pillar 11 is more than 9:When 1, due to light-guiding pillar
1 mixed light effect, cause irradiation hot spot excessively uniform, central light strength reduction.
The focus in the collimating optics face 21 is located at before and after the light-guiding pillar exiting surface 12 in the range of 5mm.It is described non-rotating
Symmetrical optical curved surface 22 is used for the lighting demand for realizing the horizontal both sides larger angle region of dazzle light.By light on horizontal profile
Line irradiates toward both sides so that it can illuminate the larger region of horizontal line upper angle, and sectional elevation makes light collimated illumination
Obtain light to control in a narrow horizontal zone as far as possible, reduce unnecessary a wide range of illumination.
Dissipate and project after the light on the horizontal profile of rotation asymmetry optical surface 22 is by the light-guiding pillar 1；
Approximate construction direct projection goes out after the light on the sectional elevation of rotation asymmetry optical surface 22 is by the light-guiding pillar 1.It is described
Inclined plane 23 is displaced to light above the horizon and horizontal line is with lower surface camber, meet dazzle light to above the horizon 3 ° and
The lighting demand in 3 ° of regions below horizontal line.
The inclined plane 23 rolls oblique 0.1 °~3 ° outward relative to the collimating optics face 21.
Embodiment two
As shown in figs. 9-10, the difference of the present embodiment and embodiment one is that the exiting surface 12 of the light-guiding pillar 1 is
To extending around strip branch on the basis of rectangle.
Embodiment three
The present embodiment and the difference of embodiment one and two are that the light-guiding pillar exiting surface 12 is ellipse, oval
Major axis and short axle ratio be 6:1-2:1.
The lens group that the present invention is used for high beam illumination only realizes that high beam designs with 5 3W lamp beads, meets U.S. vehicle
In beacon light standard on dipped headlight UB1, UB2, UB3, UB4, UB5, UB6 classification lighting requirement, its hot spot figure such as Figure 11 and figure
Shown in 12.
A kind of lens group for high beam illumination of the present invention, the technology of toroidal lens is added using light-guiding pillar, is realized
Requirement to light source, has dropped in the horizontal centre accent light of high beam and the lighting demand in other regions significantly so that whole lamp into
This reduction.
The announcement and teaching of book according to the above description, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula is changed and changed.Therefore, the invention is not limited in embodiment disclosed and described above, to the one of invention
A little modifications and changes should also be as falling into the scope of the claims of the present invention.In addition, although used in this specification
Some specific terms, but these terms are merely for convenience of description, do not form any restrictions to the present invention.
Claims (10)
- A kind of 1. lens group for high beam illumination, it is characterised in that including light-guiding pillar and more toroidal lens, the light-guiding pillar Positioned at the lower section of more toroidal lens, the light of light source after over-light-transferring pole, in the light-guiding pillar by multiple reflections after, formed One is ended hot spot that is clear and being evenly distributed, and the hot spot is imaged on the position of infinity after the effect of excessive toroidal lens Put, wherein：The light-guiding pillar incidence surface covers all light source luminescent faces；The light-guiding pillar exiting surface is for rectangle, ellipse or in square To extending around strip branch on the basis of shape；More toroidal lens include collimating optics face, rotation asymmetry optical surface and inclined plane, the rotation asymmetry optics Face is less than the collimating optics face；The collimating optics face is symmetrically disposed in the both sides of the rotation asymmetry optical surface；Institute State inclined plane connection round and smooth with the collimating optics face and be arranged on the edge in the both sides collimating optics face.
- 2. the lens group according to claim 1 for high beam illumination, it is characterised in that the light-guiding pillar exiting surface is And the length-width ratio of rectangle is 6:1-2:1st, the light-guiding pillar exiting surface is ellipse, and oval major axis is 6 with short axle ratio:1-2:1.
- 3. the lens group according to claim 1 for high beam illumination, it is characterised in that the light-guiding pillar incidence surface Area is less than the area of exiting surface.
- 4. the lens group according to claim 2 for high beam illumination, it is characterised in that the light-guiding pillar side wall is with entering The angle angle that smooth surface is formed is 0 °~20 °.
- 5. the lens group according to claim 1 for high beam illumination, it is characterised in that the incidence surface is rectangle, And the length ratio of the height of the light-guiding pillar and incidence surface short side is 2:1-9:1 or the incidence surface for ellipse, the leaded light The high and ratio of the bond length of the incidence surface minimum enclosed rectangle of post is 2:1-9:1.
- 6. the lens group according to claim 1 for high beam illumination, it is characterised in that Jiao in the collimating optics face Point is in the range of ± the 5mm of the light-guiding pillar exiting surface position.
- 7. the lens group according to claim 1 for high beam illumination, it is characterised in that the collimating optics face uses Planoconvex spotlight curved surface or Fresnel lenses.
- 8. the lens group according to claim 1 for high beam illumination, it is characterised in that pass through the rotation asymmetry Light on optical surface horizontal profile is projected by being dissipated after the light-guiding pillar；Cutd open vertically by the rotation asymmetry optical surface Light on face is gone out by approximate construction direct projection after the light-guiding pillar.
- 9. the lens group according to claim 1 for high beam illumination, it is characterised in that the inclined plane is relative to institute State collimating optics face and roll oblique 0.1 °~3 ° outward.
- 10. the lens group according to claim 1 for high beam illumination, it is characterised in that the light source uses more The LED light source of chip uniform close arrangement.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610436339 | 2016-06-17 | ||
| CN2016104363395 | 2016-06-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107339653A true CN107339653A (en) | 2017-11-10 |
Family
ID=60222822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611088799.XA Pending CN107339653A (en) | 2016-06-17 | 2016-12-01 | A kind of lens group for high beam illumination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107339653A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519881A (en) * | 2018-03-07 | 2019-03-26 | 江苏金晓电子信息股份有限公司 | A kind of New LED lens |
| CN109764303A (en) * | 2018-12-19 | 2019-05-17 | 深圳市九洲光电科技有限公司 | A kind of double lens LED light |
| CN109855039A (en) * | 2017-11-30 | 2019-06-07 | 长城汽车股份有限公司 | Laser distance light mould group, laser high beam and vehicle |
| WO2021103755A1 (en) * | 2019-11-26 | 2021-06-03 | 华域视觉科技(上海)有限公司 | Vehicle lamp module, vehicle headlamp, and vehicle |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527974A (en) * | 2012-07-04 | 2014-01-22 | 恩普乐股份有限公司 | Light flux controlling member, light emitting apparatus, surface light source apparatus, and display apparatus |
| WO2014072003A1 (en) * | 2012-11-08 | 2014-05-15 | Docter Optics Se | Headlight lens for a vehicle headlight |
-
2016
- 2016-12-01 CN CN201611088799.XA patent/CN107339653A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527974A (en) * | 2012-07-04 | 2014-01-22 | 恩普乐股份有限公司 | Light flux controlling member, light emitting apparatus, surface light source apparatus, and display apparatus |
| WO2014072003A1 (en) * | 2012-11-08 | 2014-05-15 | Docter Optics Se | Headlight lens for a vehicle headlight |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109855039A (en) * | 2017-11-30 | 2019-06-07 | 长城汽车股份有限公司 | Laser distance light mould group, laser high beam and vehicle |
| CN109855039B (en) * | 2017-11-30 | 2021-03-26 | 长城汽车股份有限公司 | Laser high beam module, laser high beam and vehicle |
| CN109519881A (en) * | 2018-03-07 | 2019-03-26 | 江苏金晓电子信息股份有限公司 | A kind of New LED lens |
| CN109764303A (en) * | 2018-12-19 | 2019-05-17 | 深圳市九洲光电科技有限公司 | A kind of double lens LED light |
| WO2021103755A1 (en) * | 2019-11-26 | 2021-06-03 | 华域视觉科技(上海)有限公司 | Vehicle lamp module, vehicle headlamp, and vehicle |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171110 |