CN204062854U - The even optical lens of low-angle optically focused - Google Patents
The even optical lens of low-angle optically focused Download PDFInfo
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- CN204062854U CN204062854U CN201420441783.2U CN201420441783U CN204062854U CN 204062854 U CN204062854 U CN 204062854U CN 201420441783 U CN201420441783 U CN 201420441783U CN 204062854 U CN204062854 U CN 204062854U
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Abstract
The even optical lens of a kind of low-angle optically focused, comprises bottom surface, surface and the side between bottom surface and surface; Described bottom surface is provided with to lens sunken inside and for the cavity of accommodating LED lamp bead, the top of described cavity is provided with arc convex, and described housing surface forms plane of light incidence; Described side is made up of the curved surface that light is totally reflected away along-4 degree to 5 degree of exit directions one or more snippets, described Surface forming light reflection face; Described surface is provided with microscopic beads face group, and described microscopic beads face group forms by by some little curved surfaces, and described microscopic beads face group forms beam projecting face.Lens of the present utility model can coordinate with single-chip or multi-chip encapsulated LED; The reflecting surface of the plane of incidence that lens cavity is formed and surface of revolution design makes light in comparatively short distance mixing, when not changing dispersion angle or dispersion angle changes less, lens exit facet hot spot that microscopic beads face group makes to get is set evenly.
Description
Technical field
The utility model relates to optical lens, in particular for imaging class light fixture, has the even smooth function of optically focused and the less lens of beam projecting angle.
Background technology
Adopt LED in color, uniform-illumination, still can not reach higher application requirement, particularly imaging class LED lamp as the LED lamp of light source.Existing imaging light fixture Optical System Design target is the hot spot that will obtain color uniform-illumination several meters of distances.The light fixture of imaging class generally comprises optically focused part and imaging moiety, determine the whether even optical system depending on optically focused part to a great extent of hot spot that light fixture is finally got, in order to realize this design object, existing light collecting part spectroscopy system often does to obtain more complicated, is generally coordinated by multiple optical lens and forms, although this kind of combined optical system also can achieve the goal, but it designs complexity, light modulation is complicated, and manufacturing cost is high, and light fixture volume is larger.
Summary of the invention
Technical problem to be solved in the utility model is to provide the even optical lens of a kind of low-angle optically focused, obtains the hot spot of color and uniform-illumination while the light that collection LED light source is dispersed in short distance in the plane vertical with beam projecting direction.
For solving the problems of the technologies described above, the technical solution of the utility model is: the even optical lens of a kind of low-angle optically focused, comprises bottom surface, surface and the side between bottom surface and surface; Described bottom surface is provided with to lens sunken inside and for the cavity of accommodating LED lamp bead, the top of described cavity is provided with arc convex, and described housing surface forms plane of light incidence; Described side is made up of the curved surface that light is totally reflected away along-4 degree to 5 degree of exit directions one or more snippets, described Surface forming light reflection face; Described surface is provided with microscopic beads face group, and described microscopic beads face group forms by by some little curved surfaces, and described microscopic beads face group forms beam projecting face.Lens of the present utility model can coordinate with single-chip or multi-chip encapsulated LED; The reflecting surface of the plane of incidence that lens cavity is formed and surface of revolution design makes light in comparatively short distance mixing, when not changing dispersion angle or dispersion angle changes less, lens exit facet hot spot that microscopic beads face group makes to get is set evenly.In addition, the curved surface quantity of reflecting surface gets over that multiple-effect fruit is better, and light mixing distance is near, simultaneously even light mixing.
As improvement, described reflecting surface towards the front end in light reflection direction for reflecting the light in 5 degree of directions, described reflecting surface towards the rear end in light reflection direction for reflecting the light in-4 degree directions.
As improvement, described lens are rotary body.
The beneficial effect that the utility model is compared with prior art brought is:
The reflecting surface of the plane of incidence that lens cavity is formed and surface of revolution design makes light in comparatively short distance mixing, when not changing dispersion angle or dispersion angle changes less, lens exit facet hot spot that microscopic beads face group makes to get is set evenly.
Accompanying drawing explanation
Fig. 1 is the utility model sectional view.
Fig. 2 is the utility model top view.
Fig. 3 is embodiment 1 index path.
Fig. 4 is embodiment 2 index path.
Fig. 5 is embodiment 3 index path.
Detailed description of the invention
Below in conjunction with Figure of description, the utility model is described in further detail.
Embodiment 1
As shown in Figure 1, the even optical lens of a kind of low-angle optically focused, described lens are rotary body, and it comprises bottom surface, surface and the side between bottom surface and surface.Described bottom surface is provided with to lens sunken inside and for the cavity 5 of accommodating LED lamp bead 4, the top of described cavity 5 is provided with arc convex 6, and described cavity 5 surface forms plane of light incidence 1.Described side is made up of the curved surface that light is totally reflected away along-4 degree to 5 degree of exit directions one or more snippets, described Surface forming light reflection face 2.As shown in Figure 2, described surface is provided with microscopic beads face group 7, and described microscopic beads face group 7 forms by by some little curved surfaces 7, and described microscopic beads face group 7 forms beam projecting face 3.
As shown in Figure 3, in the present embodiment, side as reflecting surface 2 is made up of one section of curved surface 21a, after light a is totally reflected by curved surface 21a, exit direction is 5 degree, light 2 is totally reflected rear to being-4 degree by curved surface 21a, and other light are evenly distributed between 5 degree and-4 degree by exit direction after curved face total reflection.The emergent ray that the present embodiment obtains after the lens within 100mm distance hot spot uneven, in evil mind in the middle of hot spot; Emergent ray after the lens beyond 100mm hot spot color and illumination comparatively even, beam projecting angle is between ± 6 degree.
Lens of the present utility model can coordinate with single-chip or multi-chip encapsulated LED; The reflecting surface 2 of the plane of incidence 1 that lens cavity 5 is formed and surface of revolution design makes light in comparatively short distance mixing, when not changing dispersion angle or dispersion angle changes less, lens exit facet 3 hot spot that microscopic beads face group 7 makes to get is set evenly.In addition, the curved surface quantity of reflecting surface gets over that multiple-effect fruit is better, and light mixing distance is near, simultaneously even light mixing.
Embodiment 2
As shown in Figure 1, the even optical lens of a kind of low-angle optically focused, described lens are rotary body, and it comprises bottom surface, surface and the side between bottom surface and surface.Described bottom surface is provided with to lens sunken inside and for the cavity 5 of accommodating LED lamp bead 4, the top of described cavity 5 is provided with arc convex 6, and described cavity 5 surface forms plane of light incidence 1.Described side is made up of the curved surface that light is totally reflected away along-4 degree to 5 degree of exit directions one or more snippets, described Surface forming light reflection face 2.As shown in Figure 2, described surface is provided with microscopic beads face group 7, and described microscopic beads face group 7 forms by by some little curved surfaces 7, and described microscopic beads face group 7 forms beam projecting face 3.
As shown in Figure 4, in the present embodiment, side as reflecting surface 2 is made up of two sections of curved surfaces, after light a is totally reflected by first surface 21b, shooting angle is 5 degree, after light b is totally reflected by first surface 21b, shooting angle is-4 degree, and other light are uniformly distributed between 5 degree and-4 degree by exit direction after curved face total reflection.After the light closed on light b is totally reflected by the second curved surface 22b, beam projecting angle is 5 degree, after light c is totally reflected by the second curved surface 22b, emergent ray angle is-4 degree, and the light between light b and light c is evenly distributed between 5 degree and-4 degree by the radiation direction after the second curved surface 22b total reflection.All emergent raies after the lens beyond 80mm hot spot color and illumination comparatively even, within 80mm distance, hot spot is uneven, and have evil mind in the middle of hot spot, the beam projecting angle of whole lens is between ± 5 degree.
Lens of the present utility model can coordinate with single-chip or multi-chip encapsulated LED; The reflecting surface 2 of the plane of incidence 1 that lens cavity 5 is formed and surface of revolution design makes light in comparatively short distance mixing, when not changing dispersion angle or dispersion angle changes less, lens exit facet 3 hot spot that microscopic beads face group 7 makes to get is set evenly.In addition, the curved surface quantity of reflecting surface gets over that multiple-effect fruit is better, and light mixing distance is near, simultaneously even light mixing.
Embodiment 3
As shown in Figure 1, the even optical lens of a kind of low-angle optically focused, described lens are rotary body, and it comprises bottom surface, surface and the side between bottom surface and surface.Described bottom surface is provided with to lens sunken inside and for the cavity 5 of accommodating LED lamp bead 4, the top of described cavity 5 is provided with arc convex 6, and described cavity 5 surface forms plane of light incidence 1.Described side is made up of the curved surface that light is totally reflected away along-4 degree to 5 degree of exit directions one or more snippets, described Surface forming light reflection face 2.As shown in Figure 2, described surface is provided with microscopic beads face group 7, and described microscopic beads face group 7 forms by by some little curved surfaces 7, and described microscopic beads face group 7 forms beam projecting face 3.
As shown in Figure 5, in the present embodiment, side as reflecting surface 2 is made up of three sections of curved surfaces, after light a is totally reflected by first surface 21c, shooting angle is 5 degree, after light b is totally reflected by first surface 21c, shooting angle is-4 degree, and other light are uniformly distributed between 5 degree and-4 degree by exit direction after curved face total reflection.After the light closed on light b is totally reflected by the second curved surface 22c, beam projecting angle is 5 degree, after light c is totally reflected by the second curved surface 22c, emergent ray angle is-4 degree, and the light between light b and light c is evenly distributed between 5 degree and-4 degree by the radiation direction after the second curved surface 22c total reflection.After the light closed on light c is totally reflected by the 3rd curved surface 23c, beam projecting angle is 5 degree, after light d is totally reflected by the 3rd curved surface 23c, emergent ray angle is-4 degree, and the light between light c and light d is evenly distributed between 5 degree and-4 degree by the radiation direction after the 3rd curved surface 23c total reflection.All emergent raies after the lens beyond 60mm hot spot color and illumination more even, within 60mm distance, hot spot is uneven, and have evil mind in the middle of hot spot, the beam projecting angle of whole lens is between ± 5 degree, in shorter distance, about 60mm angle is less, and hot spot is more even.
Lens of the present utility model can coordinate with single-chip or multi-chip encapsulated LED; The reflecting surface 2 of the plane of incidence 1 that lens cavity 5 is formed and surface of revolution design makes light in comparatively short distance mixing, when not changing dispersion angle or dispersion angle changes less, lens exit facet 3 hot spot that microscopic beads face group 7 makes to get is set evenly.In addition, the curved surface quantity of reflecting surface gets over that multiple-effect fruit is better, and light mixing distance is near, simultaneously even light mixing.
Claims (3)
1. the even optical lens of low-angle optically focused, comprises bottom surface, surface and the side between bottom surface and surface; It is characterized in that: described bottom surface is provided with to lens sunken inside and for the cavity of accommodating LED lamp bead, the top of described cavity is provided with arc convex, and described housing surface forms plane of light incidence; Described side is made up of the curved surface that light is totally reflected away along-4 degree to 5 degree of exit directions one or more snippets, described Surface forming light reflection face; Described surface is provided with microscopic beads face group, and described microscopic beads face group forms by by some little curved surfaces, and described microscopic beads face group forms beam projecting face.
2. the even optical lens of low-angle optically focused according to claim 1, it is characterized in that: described reflecting surface towards the front end in light reflection direction for reflecting the light in 5 degree of directions, described reflecting surface towards the rear end in light reflection direction for reflecting the light in-4 degree directions.
3. the even optical lens of low-angle optically focused according to claim 1, is characterized in that: described lens are rotary body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420441783.2U CN204062854U (en) | 2014-08-07 | 2014-08-07 | The even optical lens of low-angle optically focused |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420441783.2U CN204062854U (en) | 2014-08-07 | 2014-08-07 | The even optical lens of low-angle optically focused |
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| Publication Number | Publication Date |
|---|---|
| CN204062854U true CN204062854U (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420441783.2U Expired - Fee Related CN204062854U (en) | 2014-08-07 | 2014-08-07 | The even optical lens of low-angle optically focused |
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| CN (1) | CN204062854U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020607A (en) * | 2015-03-05 | 2015-11-04 | 立达信绿色照明股份有限公司 | LED lens and lamp using LED lens |
| CN107062157A (en) * | 2017-05-31 | 2017-08-18 | 杭州光锥科技有限公司 | Underground lamp lens, light emitting module and underground lamp with the underground lamp lens |
| CN108204572A (en) * | 2016-12-28 | 2018-06-26 | 佛山市中山大学研究院 | A kind of micro-structure adding method for changing slim lens angle |
| WO2020063150A1 (en) * | 2018-09-26 | 2020-04-02 | 常州星宇车灯股份有限公司 | Condenser structure for vehicle |
-
2014
- 2014-08-07 CN CN201420441783.2U patent/CN204062854U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020607A (en) * | 2015-03-05 | 2015-11-04 | 立达信绿色照明股份有限公司 | LED lens and lamp using LED lens |
| CN108204572A (en) * | 2016-12-28 | 2018-06-26 | 佛山市中山大学研究院 | A kind of micro-structure adding method for changing slim lens angle |
| CN107062157A (en) * | 2017-05-31 | 2017-08-18 | 杭州光锥科技有限公司 | Underground lamp lens, light emitting module and underground lamp with the underground lamp lens |
| CN107062157B (en) * | 2017-05-31 | 2023-02-10 | 浙江光锥科技有限公司 | Underground lamp lens, light emitting module with same and underground lamp |
| WO2020063150A1 (en) * | 2018-09-26 | 2020-04-02 | 常州星宇车灯股份有限公司 | Condenser structure for vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20190807 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |