CN208535908U - A kind of special-shaped lens and LED lamp - Google Patents
A kind of special-shaped lens and LED lamp Download PDFInfo
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- CN208535908U CN208535908U CN201820804730.0U CN201820804730U CN208535908U CN 208535908 U CN208535908 U CN 208535908U CN 201820804730 U CN201820804730 U CN 201820804730U CN 208535908 U CN208535908 U CN 208535908U
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- plane
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Abstract
The utility model relates to a kind of special-shaped lens and LED lamps, including reflecting surface and set on the plane of incidence and exit facet at reflecting surface both ends, the first exit facet and the second exit facet of circle in annular that the exit facet includes annular；The plane of incidence includes first plane of incidence and second plane of incidence interconnected, and first plane of incidence and second plane of incidence form the groove for placing light source；Second plane of incidence is the bottom surface of groove, and first plane of incidence is the side of groove.In use, the light reflected through first plane of incidence, after reflecting surface is totally reflected, in a ring due to the first exit facet, the formation ring-shaped light spot projected from the first exit facet；The light reflected through second plane of incidence projects to form circular light spot since the second exit facet is rounded from the second exit facet, two hot spots of different shapes are generated by a LED light source in this way, structure is simple, ingenious, avoids realizing using multiple light sources or lens, substantially reduces production cost.
Description
Technical field
The utility model relates to lens light distribution technical field, especially a kind of special-shaped lens and LED lamp.
Background technique
Lens are a kind of components for changing light propagation path, and the shape by designing lens obtains required hot spot.
One lens of existing lens optical system and light source can only generate a circular light spot, and function is relatively simple.If necessary to generate
The hot spot of multiple and different shapes then needs multiple light sources and lens to realize, structure is complicated in this way, and processing cost is higher.
As the consciousness of health is rooted in the hearts of the people, more and more people are come body-building by night, before general circular light spot
Left and right is relatively uniform afterwards, and more stresses the illumination in front when night race, and the illumination of left and right is secondary.Therefore, existing circular light
Spot is not well positioned to meet the demand of people.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of special-shaped lens and LED lamp, solve existing
LED lamp generates the hot spot of multiple and different shapes, then multiple light sources and lens is needed to realize, structure is complicated, processing cost compared with
High problem.
The technical scheme adopted by the utility model to solve the technical problem is as follows: providing a kind of special-shaped lens, including reflection
Face and the plane of incidence and exit facet set on reflecting surface both ends, the exit facet include the first exit facet of annular and are located at ring
The second exit facet of circle in shape；The plane of incidence includes first plane of incidence and second plane of incidence interconnected, and described first
The plane of incidence and second plane of incidence form the groove for placing light source；First plane of incidence is conical concave surface, described second
The plane of incidence is the conical convex surface protruded towards exit facet opposite direction；Second plane of incidence is the bottom surface of groove, and first plane of incidence is recessed
The side of slot；The light reflected through first plane of incidence projects after reflecting surface is totally reflected from the first exit facet；Through the second incidence
The light of face refraction, is projected from the second exit facet.
Further, first exit facet by it is multiple be parallel to each other and protrusion bar shaped cambered surface be crossed to form.
Further, the multiple bar shaped cambered surface include positioned at middle part the first bar shaped cambered surface and multiple be located at first
Second bar shaped cambered surface of shape cambered surface two sides；The radius of curvature of second bar shaped cambered surface along far from the first bar shaped cambered surface direction gradually
Reduce, and the radius of curvature of the first bar shaped cambered surface is greater than the radius of curvature of the second bar shaped cambered surface or the curvature of the second bar shaped cambered surface
Radius is equal to the radius of curvature of the first bar shaped cambered surface.
Further, the value range of the radius of curvature of the multiple bar shaped cambered surface is 0.5mm~3.5mm.
Further, the curvature circle-center of the multiple bar shaped cambered surface is in the same plane.
Further, the reflecting surface is fully reflecting surface, the angle of light and optical axis through reflecting surface total reflection is 0 °~
30°；The angle of first plane of incidence and optical axis is 1 °~7 °.
Further, second exit facet is formed by multiple spherical surfaces in cellular arrangement.
Further, the radius of curvature value range of the spherical surface is 0.3mm~4.5mm.
The utility model also provides a kind of LED lamp, and including LED light source and above-mentioned special-shaped lens, LED light source is set
In in the groove of special-shaped lens.
Further, the LED lamp source is located on the optical axis of special-shaped lens and towards second plane of incidence, second plane of incidence with
The edge of first plane of incidence connection is 0 °~60 ° to the angle between the line and optical axis of LED light source luminous point, and described second enters
Surface area of the surface area less than the second exit facet for penetrating face, the angle between light and optical axis after the refraction of second plane of incidence are
0 °~20 °.
Compared with the existing technology, a kind of special-shaped lens provided by the utility model and LED lamp, in use, entering through first
The light for penetrating face refraction, after reflecting surface is totally reflected, in a ring due to the first exit facet, the formation ring projected from the first exit facet
Shape hot spot；The light reflected through second plane of incidence projects to form circular light since the second exit facet is rounded from the second exit facet
Spot generates two hot spots of different shapes by LED light source in this way, and structure is simple, ingenious, avoid using multiple light sources or
Person lens are realized, production cost is substantially reduced.
Detailed description of the invention
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing:
Fig. 1 is the stereoscopic schematic diagram of special-shaped lens provided by the utility model；
Fig. 2 is LED lamp schematic cross-sectional view provided by the utility model；
Fig. 3 is the light transmittance efficiency figure of the first exit facet hot spot；
Fig. 4 is some light path schematic diagram of special-shaped lens；
Fig. 5 is the portion A partial enlargement diagram in Fig. 2；
Fig. 6 is the light transmittance efficiency figure of track shaped laser spot；
Fig. 7 is the light transmittance efficiency figure of the second exit facet hot spot；
Fig. 8 is the middle part opticpath schematic diagram of special-shaped lens；
Fig. 9 is the light transmittance efficiency figure of wide-angle circular light spot；
Figure 10 is the light transmittance efficiency figure of the compound hot spot of LED lamp in Fig. 2；
Figure 11 is the light distribution curve of the compound hot spot of LED lamp in Fig. 2.
Specific embodiment
Now in conjunction with attached drawing, elaborate to the preferred embodiment of the utility model.
As illustrated in fig. 1 and 2, the utility model provides a kind of special-shaped lens 100, including reflecting surface 10 and is set to reflecting surface
The plane of incidence 20 and exit facet 30 at 10 both ends.The first exit facet 31 and the circle in annular that exit facet 30 includes annular
Second exit facet 32, the plane of incidence 20 include first plane of incidence 21 interconnected and second plane of incidence 22, first plane of incidence 21 with
Second plane of incidence 22 forms the groove 40 for placing light source.Wherein, reflecting surface 10 is revolved by symmetrical two camber line around its symmetry axis
Turn 180 ° to form, the distance between two camber line symmetric points edge is gradually increased towards the direction of exit facet 30.
In use, the light reflected through first plane of incidence 21, after the total reflection of reflecting surface 10, since the first exit facet 31 is in
Annular, the formation ring-shaped light spot projected from the first exit facet 31；The light reflected through second plane of incidence 22, due to the second outgoing
Face 22 is rounded, forms circular light spot from the injection of the second exit facet 32.Two different shapes are generated by a LED light source in this way
Hot spot, structure is simple, ingenious, avoids realizing using multiple light sources or lens, substantially reduces processing cost.
In the present embodiment, the first exit facet 31 by it is multiple be parallel to each other and protrusion bar shaped cambered surface be crossed to form.Protrusion
Bar shaped cambered surface have the function of stretch hot spot, can be 1.5~4.7 times spot elongation, advantageously form track shape
Hot spot (as shown in Figure 3).
As shown in figure 4, the angle Q1 of first plane of incidence 21 and optical axis is 1 °~7 °, reflecting surface 10 is fully reflecting surface, through anti-
The angle Q2 of the light and optical axis of penetrating the total reflection of face 10 is 0 °~30 °, i.e., the folder of the light and optical axis that are totally reflected through reflecting surface 10
Angle Q2 is not steady state value.Wherein, reflecting surface 10 will be totally reflected, then the angle Q3 for meeting light and normal is needed to be greater than lens
Critical angle, critical angle=arcsin (n2/n1), n1 are the refractive index of lens material, and n2 is air refraction.Such as in Fig. 3
Five light are followed successively by 5 °, 4 °, 2 °, 1 °, 6 ° with the angle Q2 of optical axis respectively from right to left.
As shown in figure 5, multiple bar shaped cambered surfaces include positioned at middle part the first bar shaped cambered surface a and multiple be located at the first bar shaped
The radius of curvature of second bar shaped cambered surface b, the second bar shaped cambered surface b of the two sides cambered surface a along far from the first bar shaped cambered surface a direction by
It is decrescence small, and the radius of curvature of the first bar shaped cambered surface a is greater than the radius of curvature of the second bar shaped cambered surface b.Specifically, multiple bar shaped arcs
The value range of the radius of curvature in face is 0.5mm~3.5mm.In addition, the curvature circle-center of all bar shaped cambered surfaces is in same plane B
On, the first exit facet 31 can be made to outwardly protrude to form plano-convex structure in this way.The span L of each bar shaped cambered surface is greater than twice of height
H.Since the angle Q2 of the light and optical axis that are totally reflected through reflecting surface 10 is not steady state value, and the radius of curvature of bar shaped cambered surface
It is variation, it is achieved that the light of outgoing forms the track shaped laser spot (as shown in Figure 6) of comparison rule.
In other embodiments, the radius of curvature of the second bar shaped cambered surface b is equal to the first bar shaped cambered surface a, in this way can also be with
Form track shaped laser spot.
In the present embodiment, the second exit facet 32 is formed by multiple spherical surface c in cellular arrangement, wherein the curvature of spherical surface c
Radius value range is 0.3mm~4.5mm.The structure can by 1.05~1.2 times of enlarged-diameter of emergent light spot, while effectively
The uniformity of hot spot is promoted, is generated wide-angle Homogeneous Circular hot spot (as shown in Figure 7).
As shown in figure 8, first plane of incidence 21 is conical concave surface, penetrated on reflecting surface 10 convenient for the light after refraction, the
Two planes of incidence 22 are the conical convex surface protruded towards 30 opposite direction of exit facet, inject the second exit facet convenient for the light after refraction
32.Wherein, second plane of incidence 22 is the bottom surface of groove, and first plane of incidence 21 is the side of groove.In the present embodiment, second enters
Penetrate the surface area of the surface area less than the second exit facet 32 in face 22, while light and optical axis after the refraction of second plane of incidence 22
Between angle Q5 be 0 °~20 °, make into second plane of incidence 22 light from the second exit facet 32 project, improve light
Utilization rate (as shown in Figure 9).
In other embodiments, the second exit facet 32 can also be connected by the bar shaped cambered surface of multiple protrusions and be formed, wherein the
The bar shaped cambered surface of two exit facets 32 and the bar shaped cambered surface of the first exit facet 31 are mutually perpendicular in the longitudinal direction, can be obtained in this way
It is superimposed " ten " the font hot spot formed by two elliptical spots, personalized demand is provided.
As shown in Fig. 2, the utility model also provides a kind of LED lamp, it is saturating including LED light source 200 and above-mentioned abnormity
Mirror 100, LED light source 200 are set in the groove 40 of special-shaped lens 100.Specifically, LED lamp source 200 is located at special-shaped lens 100
On optical axis and towards second plane of incidence 22, the edge that second plane of incidence 22 is connect with first plane of incidence 21 to LED light source luminous point
Line and optical axis between angle Q4 be 0 °~60 °.In the present embodiment, second plane of incidence 22 and first plane of incidence 21 connect
The edge connect is to Q4=29 ° of angle between the line and optical axis of LED light source luminescent point.
If Figure 10 is the light transmittance efficiency figure that LED lamp forms compound hot spot, Figure 11 is the light distribution that LED lamp forms compound hot spot
Curve graph, it follows that illuminating effect of the LED lamp in Liang meter Chu is best, middle part is the track for laying particular emphasis on front
Shaped laser spot, periphery are wide-angle circular light spot, and illumination zone is big, run person taking exercise for night and provide safety guarantee.
It should be understood that above embodiments are only to illustrate the technical solution of the utility model, it is rather than its limitations, right
For those skilled in the art, it can modify to technical solution illustrated in the above embodiments, or to part of skill
Art feature is equivalently replaced；And all such modifications and replacement, it all should belong to the protection of the appended claims for the utility model
Range.
Claims (10)
1. a kind of special-shaped lens, which is characterized in that including reflecting surface and set on the plane of incidence and exit facet at reflecting surface both ends, institute
State the first exit facet and the second exit facet of circle in annular that exit facet includes annular；The plane of incidence includes mutual
First plane of incidence and second plane of incidence of connection, first plane of incidence are formed with second plane of incidence for placing the recessed of light source
Slot；First plane of incidence is conical concave surface, and second plane of incidence is the conical convex surface protruded towards exit facet opposite direction；
Second plane of incidence is the bottom surface of groove, and first plane of incidence is the side of groove；The light reflected through first plane of incidence, through reflecting surface
After total reflection, projected from the first exit facet；The light reflected through second plane of incidence is projected from the second exit facet.
2. special-shaped lens according to claim 1, which is characterized in that first exit facet is parallel to each other and convex by multiple
The bar shaped cambered surface risen is crossed to form.
3. special-shaped lens according to claim 2, which is characterized in that the multiple bar shaped cambered surface includes positioned at the of middle part
One bar shaped cambered surface and multiple the second bar shaped cambered surfaces for being located at the first bar shaped cambered surface two sides；The radius of curvature edge of second bar shaped cambered surface
Be gradually reduced far from the direction of the first bar shaped cambered surface, and the radius of curvature of the first bar shaped cambered surface is greater than the song of the second bar shaped cambered surface
The radius of curvature of rate radius or the second bar shaped cambered surface is equal to the radius of curvature of the first bar shaped cambered surface.
4. special-shaped lens according to claim 3, which is characterized in that the value of the radius of curvature of the multiple bar shaped cambered surface
Range is 0.5mm~3.5mm.
5. special-shaped lens according to claim 3, which is characterized in that the curvature circle-center of the multiple bar shaped cambered surface is same
In plane.
6. special-shaped lens according to claim 2, which is characterized in that the reflecting surface is fully reflecting surface, complete through reflecting surface
The light of reflection and the angle of optical axis are 0 °~30 °；The angle of first plane of incidence and optical axis is 1 °~7 °.
7. special-shaped lens as claimed in any of claims 1 to 6, which is characterized in that second exit facet is by more
A spherical surface is formed in cellular arrangement.
8. special-shaped lens according to claim 7, which is characterized in that the radius of curvature value range of the spherical surface is
0.3mm~4.5mm.
9. a kind of LED lamp, which is characterized in that including LED light source and as claimed in any of claims 1 to 8 in one of claims it is different
Shape lens, LED light source are set in the groove of special-shaped lens.
10. LED lamp according to claim 9, which is characterized in that the LED lamp source is located on the optical axis of special-shaped lens
And second plane of incidence of direction, the line and optical axis at the edge that second plane of incidence is connect with first plane of incidence to LED light source luminous point
Between angle be 0 °~60 °, the surface area of second plane of incidence less than the second exit facet surface area, through second plane of incidence
The angle between light and optical axis after refraction is 0 °~20 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820804730.0U CN208535908U (en) | 2018-05-28 | 2018-05-28 | A kind of special-shaped lens and LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820804730.0U CN208535908U (en) | 2018-05-28 | 2018-05-28 | A kind of special-shaped lens and LED lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208535908U true CN208535908U (en) | 2019-02-22 |
Family
ID=65394420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820804730.0U Expired - Fee Related CN208535908U (en) | 2018-05-28 | 2018-05-28 | A kind of special-shaped lens and LED lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208535908U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115539868A (en) * | 2022-12-01 | 2022-12-30 | 深圳市旺坤光电技术有限公司 | Landscape lamp with changeable lamp holder mounting position |
| WO2024162240A1 (en) * | 2023-02-01 | 2024-08-08 | パナソニックＩｐマネジメント株式会社 | Lens and optical sensor system |
-
2018
- 2018-05-28 CN CN201820804730.0U patent/CN208535908U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115539868A (en) * | 2022-12-01 | 2022-12-30 | 深圳市旺坤光电技术有限公司 | Landscape lamp with changeable lamp holder mounting position |
| WO2024162240A1 (en) * | 2023-02-01 | 2024-08-08 | パナソニックＩｐマネジメント株式会社 | Lens and optical sensor system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 518000 2 / F and 3 / F, west side of building a, Xinghong science and Technology Park, 111 Reservoir Road, fenghuanggang community, Xixiang street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: Shenzhen langheng Lighting Technology Co.,Ltd. Address before: 8 / F, building 2, dongfangming industrial city, 83 Dabao Road, Xin'an 33 District, Bao'an District, Shenzhen, Guangdong 518000 Patentee before: SHENZHEN LANGHENG ELECTRICAL Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |