CN207080826U - A kind of compound total reflection LED spotlight lens - Google Patents
A kind of compound total reflection LED spotlight lens Download PDFInfo
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- CN207080826U CN207080826U CN201720325845.7U CN201720325845U CN207080826U CN 207080826 U CN207080826 U CN 207080826U CN 201720325845 U CN201720325845 U CN 201720325845U CN 207080826 U CN207080826 U CN 207080826U
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- total reflection
- refraction
- incidence surface
- fully reflecting
- exiting surface
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Abstract
The utility model discloses a kind of compound total reflection LED spotlight lens, including refraction convex lens structures, refraction total reflection refraction structure and refraction total reflection total reflection total reflection refraction structure, the refraction total reflection refraction structure and refraction total reflection total reflection total reflection refraction structure are centrosymmetric setting around the refraction convex lens structures；The convex lens structures of penetrating include the first incidence surface and the first exiting surface, the refraction total reflection refraction structure includes the second incidence surface, first fully reflecting surface and the second exiting surface, the refraction total reflection total reflection total reflection refraction structure includes the second incidence surface, the second fully reflecting surface and the second exiting surface.Overall dimensions of the present utility model are small, in light weight, and optics utilization rate is high.
Description
Technical field
The utility model belongs to LED spotlight lens technologies field, and in particular to a kind of compound total reflection LED spotlight lens.
Background technology
The application of houselights includes ambient lighting and accent light, and ambient lighting provides the basis photograph needed for vision
Degree, accent light are then designed by optically focused and improve key area illumination, for the displaying article that gives top priority to what is the most important.Optically focused is mainly designed to
The wide-angle light beam of illuminating source is adjusted to low-angle light beam, mainly there is two schemes, optical reflector and optical lens.
Such as CN201510081535.0 discloses a kind of LED collimation lens design method of double free form surfaces, by interior
Surface (incidence surface) and the change of outer surface (exiting surface) curvature, realize the refraction condensation of convex lens.CN201210550997.9
A kind of design method of LED collimation lens is disclosed, passes through inner surface (incidence surface), lens interior fully reflecting surface, exiting surface three
The cooperation of individual curved surface, realize the design of optically focused.CN01805486.2 discloses another concentrator lens structure, the light beam of light source
It is divided into two parts, a part realizes optically focused, the curved surface that another part passes through madial wall by the biconvex lens structure of center section
Enter light, after lateral wall inner full-reflection, by lens upper surface planar annular light extraction.CN201110128186.5 discloses one
Kind compact type non-imaged LED collimation system, the light beam of light source are divided into two parts, and a part is gone out by Themiddle refractive structure
Light, another part is refracted to lens upper surface annular location by incidence surface and produces first time inner full-reflection, to lens following table
Face produces the second secondary reflection, is emitted after changing direction by upper surface annular location.
Above-mentioned a variety of collector lens designs, in order to realize low-angle (50% beam angle is less than 15 degree) optically focused design,
CN201510081535.0 leans on merely refractive solutions, and the size of lens is big, and weight is also big, and optical efficiency is relatively low；
CN201210550997.9 and CN01805486.2 uses refractive solutions and an inner full-reflection scheme, under identical size,
Optical efficiency is improved compared to simple refractive solutions；CN201110128186.5 and CN201610073520.4 realizes lens chi
The reduction of very little height, but light beam most of (70%) causes optical efficiency relatively low above by light extraction after internal reflection three times,
Simultaneously because LED light source has a certain size, the light that fraction is emitted from LED diverse locations is not preferably according to design
Light path is emitted, and is turned into invalid light, be also results in the bad phenomenon of veiling glare and dazzle.
Therefore, the lens for having low-angle optically focused design to be achieved are further improved, and it is accomplished that size is small, weight
Gently, optical efficiency is high, effectively avoids the phenomenon of veiling glare and dazzle.
Utility model content
The purpose of the utility model is overcome the deficiencies in the prior art, there is provided a kind of size is small, in light weight, and optical efficiency is high,
Effectively avoid the compound total reflection LED spotlight lens of the phenomenon of veiling glare and dazzle.
What the technical solution of the utility model was realized in：A kind of compound total reflection LED spotlight lens, including refraction are convex
Lens arrangement, refraction-total reflection-refraction structure and refraction-total reflection-total reflection-total reflection-refraction structure, the refraction-complete
Reflection-refraction structure and refraction-total reflection-total reflection-total reflection-refraction structure are in the refraction convex lens structures are in
The heart is symmetrical arranged；
The convex lens structures of penetrating include the first incidence surface and the first exiting surface, the refraction-total reflection-refraction structure bag
Include the second incidence surface, the first fully reflecting surface and the second exiting surface, the refraction-total reflection-total reflection-total reflection-refraction structure
Including the second incidence surface, the second fully reflecting surface and the second exiting surface；
Second incidence surface includes planar portions and connected curved face part, the curved face part and first incidence surface
Connection, the planar portions are connected with first fully reflecting surface；First fully reflecting surface connects with second fully reflecting surface again
Connect, prismatic projection is evenly arranged with the second fully reflecting surface outer surface, the crestal line of the prismatic projection is curve；Described
One exiting surface and the second exiting surface are in the same plane, and first exiting surface is located at the center of first exiting surface；
The incident light that central shaft angle with first incidence surface is 0 degree to 35 degree reflects by first incidence surface
Afterwards, then reflect and be emitted through first exiting surface；
The incident light that central shaft angle with first incidence surface is 35 degree to 52 degree is directly from second incidence surface
Curved face part inject, by second incidence surface refraction after, be refracted to second exiting surface at second exiting surface
Produce and be totally reflected for the first time, then dashed forward to the prismatic directly reflexed to through the described second total reflection in second fully reflecting surface
Rise and produce second, third total reflection, finally reflect and be emitted from second exiting surface；
The incident ray that central shaft angle with first incidence surface is 52 degree to 80 degree is from second incidence surface
Planar portions are injected and reflected, and are produced to first fully reflecting surface and are totally reflected for the first time, then are rolled over through second exiting surface
Injection is penetrated；In light irradiation process, refraction convex lens structures, refraction-total reflection-refraction structure and the refraction-total reflection-complete
The light energy distribution ratio 36 ± 5% of light beam of light source in reflection-total reflection-refraction structure：34 ± 5%：30 ± 5%.
Preferably, first incidence surface is in the convex architecture of dough sheet composition.
Preferably, first fully reflecting surface is inner full-reflection face, the segmentation curved formed in dough sheet.
Preferably, first exiting surface is a plane, and its surface is provided with dimpling lattice array.
Preferably, second exiting surface is in flat mirror.
Preferably, the refraction convex lens structures, refraction-total reflection-refraction structure and refraction-total reflection-total reflection-complete
The light energy distribution ratio 36% of light beam of light source in reflection-refraction structure：34%：30%.
First exiting surface and the second exiting surface be one formation rounded bottom surface, rounded bottom surface a diameter of 40.40 ±
1mm, the height of whole lens are 11.43 ± 1mm, the distance of the peak of first incidence surface to rounded bottom surface for 5.12 ±
0.5mm, a diameter of 10.40 ± 0.5mm of first incidence surface；Second incidence surface, the first fully reflecting surface and second complete
Reflecting surface is symmetrically arranged on the circular surrounding that first incidence surface is formed, second incidence surface to the first total reflection
The width in face is 6.21 ± 0.05mm, and the width of second fully reflecting surface to edge is 9.30 ± 0.05mm.
The beneficial effects of the utility model are：The utility model using include refraction convex lens structures, refraction-total reflection-
Refraction structure and refraction-total reflection-total reflection-total reflection-refraction structure, it is big that total reflection repeatedly occurs in whole lens for light
Improve optical utilization rate greatly, while reflect-be totally reflected-refraction structure in the second incidence surface by planar portions and and curved surface
Portion forms, and the design of curved face part here improves optical utilization rate；And refraction-total reflection-total reflection-total reflection-refraction knot
It is evenly arranged with prismatic projection on second fully reflecting surface outer surface of structure, the crestal line of the prismatic projection is curve, prismatic projection
The design of structure has the advantages of ultra-thin short focus, and whole incident rays are less than 40% by the totality of prismatic raised structures light,
It ensure that lens entirety optical efficiency is higher than 80%；Overall dimensions of the present utility model are small, in light weight, and optics utilization rate is high.
Brief description of the drawings
Fig. 1 is that a kind of compound schematic diagram of total reflection LED spotlight lens overall structure embodiment one of the utility model (is looked up
Figure).
Fig. 2 is the sectional view in H-H faces in Fig. 1.
Fig. 3 is a kind of compound overall structure diagram of total reflection LED spotlight lens embodiment one of the utility model.
Fig. 4 is that a kind of compound overall structure diagram of total reflection LED spotlight lens embodiment one of the utility model (is overlooked
Figure).
Fig. 5 is a kind of compound overall structure diagram (side view of total reflection LED spotlight lens embodiment one of the utility model
Figure).
Fig. 6 is part B partial enlarged drawing in Fig. 5.
Fig. 7 is E parts partial enlarged drawing in Fig. 5.
Fig. 8 is all incident ray index paths in a kind of compound total reflection LED spotlight lens embodiment one of the utility model.
Fig. 9 be a kind of compound total reflection LED spotlight lens of the utility model apply portions incident light path of light figure in example one (with
The central shaft angle of first incidence surface is 0 degree to 35 degree of incident ray).
Figure 10 is that a kind of compound total reflection LED spotlight lens of the utility model apply portions incident light path of light figure in example one
(incident ray that the central shaft angle with the first incidence surface is 35 degree to 52 degree).
Figure 11 is that a kind of compound total reflection LED spotlight lens of the utility model apply portions incident light path of light figure in example one
(incident ray that the central shaft angle with the first incidence surface is 52 degree to 80 degree).
Figure 12 is a kind of optical effect figure of the compound total reflection LED spotlight lens arrangement of the utility model on LED light source.
Figure 13 is a kind of light distribution curve of the compound total reflection LED spotlight lens arrangement of the utility model on LED light source.
Figure 13 is a kind of light distribution curve of the compound total reflection LED spotlight lens arrangement of the utility model on LED light source.
Figure 14 is that a kind of overall structure diagram of compound total reflection LED spotlight lens embodiment two of the utility model (is cutd open
View).
Figure 15 is that a kind of overall structure diagram of compound total reflection LED spotlight lens embodiment three of the utility model (is cutd open
View).
Label corresponding to all parts title：First incidence surface -1, the second incidence surface -2, planar portions -21, curved face part -22,
First fully reflecting surface -3, the second fully reflecting surface -4, the second exiting surface -5, the first exiting surface -6.
Embodiment
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings：
Embodiment one
As shown in figs. 1-7, a kind of compound total reflection LED spotlight lens, including refraction convex lens structures, refraction-total reflection-
Refraction structure and refraction-total reflection-total reflection-total reflection-refraction structure, the refraction-total reflection-refraction structure and refraction-
Total reflection-total reflection-total reflection-refraction structure is centrosymmetric setting around the refraction convex lens structures；
The convex lens structures of penetrating include the first incidence surface 1 and the first exiting surface 6, the refraction-total reflection-refraction structure
Including the second incidence surface 2, the first fully reflecting surface 3 and the second exiting surface 5, the refraction-total reflection-total reflection-total reflection-refraction
Structure includes the second incidence surface 2, the second fully reflecting surface 4 and the second exiting surface 5；
Second incidence surface 2 includes planar portions 21 and connected curved face part 22, and the planar portions are all-trans with first
Face connection is penetrated, the curved surface 22 is connected with first incidence surface 1, and the curved design of curved face part more efficiently improves here
Optical utilization rate, optical efficiency improve 5%；Second fully reflecting surface 4 is connected with the described first 3 faces of total reflection, described
It is evenly arranged with prismatic projection on the outer surface of second fully reflecting surface 4, the crestal line of the prismatic projection is curve, the song of the crestal line
Radius is：Radius of curvature 6mm to 1000mm, in the present embodiment, radius of curvature 10mm, according to ridge curvature of a curve become
Change, light can produce different light distribution angle sheets, and light distribution angle caused by the present embodiment is 24 degree.Other prismatic raised structures
Design has the advantages of ultra-thin short focus, and whole incident rays are less than 40% by the totality of prismatic raised structures light, ensure that
Lens entirety optical efficiency is higher than 80%.First exiting surface 6 and the second exiting surface 5 are in the same plane, and described first
Exiting surface is located at the middle position of first exiting surface；
Specifically, first incidence surface 1 is in the convex architecture of dough sheet composition.First fully reflecting surface 3 is internal complete
Reflecting surface, the segmentation curved formed in dough sheet, the segmentation curved have spotlight effect.First exiting surface 6 is one
Individual plane, its surface are provided with dimpling lattice array.Second exiting surface is in flat mirror.
This lens products has the characteristics of size is small, and its specific size is yes：First exiting surface 6 goes out with second
Smooth surface 5 is a formation rounded bottom surface, a diameter of 40.40 ± 1mm of rounded bottom surface, the height of whole lens for 11.43 ±
1mm, the distance of peak to the rounded bottom surface of first incidence surface 1 are 5.12 ± 0.5mm, first incidence surface 1 it is straight
Footpath is 10.40 ± 0.5mm；Second incidence surface 2, the first fully reflecting surface 3 and the second fully reflecting surface 4 are symmetrically arranged on
The circular surrounding that first incidence surface 1 is formed, the width of 2 to the first fully reflecting surface of the second incidence surface 3 for 6.21 ±
0.05mm, the width of second fully reflecting surface 4 to edge is 9.30 ± 0.05mm.
As shown in FIG. 8 and 9, it is 0 degree to 35 degree (part A light in Fig. 8) with the central shaft angle of first incidence surface 1
Incident light by first incidence surface 1 refraction after, then through first exiting surface 6 reflect be emitted；
As shown in figures 8 and 10, it is 35 degree to 52 degree of incident light with the central shaft angle of first incidence surface 1 (in Fig. 8
Part B light) directly injected from the curved face part 22 of second incidence surface 2, after second incidence surface 2 refraction, refraction
Produce at second exiting surface 5 to second exiting surface 5 and be totally reflected for the first time, directly reflex to second total reflection
The prismatic projection through second fully reflecting surface 4 produces second, third total reflection in face 4, finally from second exiting surface 5
Refraction outgoing；
As shown in figures 8 and 11, the incident ray (Fig. 8 for being 52 degree to 80 degree with the central shaft angle of first incidence surface 1
Middle C portion light) it is emitted directly toward and is reflected by the planar portions 21 of second incidence surface 2, to first fully reflecting surface 3
Produce and be totally reflected for the first time, then reflect and be emitted through second exiting surface 5；
In light irradiation process, refraction convex lens structures, refraction-total reflection-refraction structure and the refraction-total reflection-
The light energy distribution ratio 36 ± 5% of light beam of light source in total reflection-total reflection-refraction structure：34 ± 5%：30 ± 5%.
In the present embodiment, the refraction convex lens structures, refraction-total reflection-refraction structure and refraction-are totally reflected-are all-trans
Penetrate-be totally reflected-refraction structure in light beam of light source light energy distribution ratio 36%：34%：30%.
After the utility model is assembled above LED light source, wherein LED light source uses the paster lamp bead of 5mmx5mm sizes,
This lens sizes 43mm is assembled, assembles height 12mm, the optical effect of realization is as shown in figure 12, at 1 meter of distance, Illumination Distribution
Figure, illumination gradual change is uniform, no stray light spots.
As shown in figure 12, light distribution curve, 50% light intensity angle are 13.4 degree, center light intensity values：Lumen value is 13.6.
The lens products size adjusts according to dimension of light source and specific assembling structure, the different fixing device peaces of use
Dress, the width dimensions of whole erecting device all can be different.
Embodiment two
As shown in figure 14, the present embodiment and the difference of embodiment one are, the bilge radius scope of the crestal line is
1000mm, caused light distribution angle are 12 degree.
Embodiment three
As shown in figure 15, the present embodiment and the difference of embodiment one, two are that the bilge radius of the crestal line are 5mm,
Caused light distribution angle is 36 degree.
The announcement and teaching of book according to the above description, the utility model those skilled in the art can also be to above-mentioned realities
The mode of applying is changed and changed.Therefore, the utility model is not limited to embodiment disclosed and described above, right
Some modifications and changes of utility model should also be as falling into scope of the claims of the present utility model.In addition, although
Some specific terms have been used in this specification, but these terms are merely for convenience of description, not to the utility model structure
Into any restrictions.
Claims (6)
1. a kind of compound total reflection LED spotlight lens, it is characterised in that including refraction convex lens structures, refraction-total reflection-folding
Penetrate structure and refraction-total reflection-total reflection-total reflection-refraction structure, the refraction-total reflection-refraction structure and refraction-complete
Reflection-total reflection-total reflection-refraction structure is centrosymmetric setting around the refraction convex lens structures；
The refraction convex lens structures include the first incidence surface and the first exiting surface, and the refraction-total reflection-refraction structure includes
Second incidence surface, the first fully reflecting surface and the second exiting surface, the refraction-total reflection-total reflection-total reflection-refraction structure bag
Include the second incidence surface, the second fully reflecting surface and the second exiting surface；
Second incidence surface includes planar portions and connected curved face part, and the curved face part connects with first incidence surface
Connect, the planar portions are connected with first fully reflecting surface；First fully reflecting surface is connected with second fully reflecting surface again,
It is evenly arranged with prismatic projection on the second fully reflecting surface outer surface, the crestal line of the prismatic projection is curve, the crestal line
The scope of radius of curvature be：5mm to 1000mm；First exiting surface and the second exiting surface are in the same plane, described
First exiting surface is located at the center of first exiting surface；
The incident light that central shaft angle with first incidence surface is 0 degree to 35 degree by first incidence surface refraction after,
Reflect and be emitted through first exiting surface again；
The incident light that central shaft angle with first incidence surface is 35 degree to 52 degree is directly from the song of second incidence surface
Face is injected, and after the second incidence surface curved face part refraction, is refracted to second exiting surface in second exiting surface
Place produces to be totally reflected for the first time, then the prismatic projection directly reflexed to through the described second total reflection in second fully reflecting surface is produced
Raw second, third total reflection, finally reflect and be emitted from second exiting surface；
Plane of the incident ray that central shaft angle with first incidence surface is 52 degree to 80 degree from second incidence surface
Portion enters and reflected, and produces to first fully reflecting surface and is totally reflected for the first time, then is reflected through second exiting surface
Penetrate；In light irradiation process, the refraction convex lens structures, refraction-total reflection-refraction structure and refraction-are totally reflected-are all-trans
Penetrate-be totally reflected-refraction structure in light beam of light source light energy distribution ratio 36 ± 5%：34 ± 5%：30 ± 5%.
2. compound total reflection LED spotlight lens as claimed in claim 1 a kind of, it is characterised in that first incidence surface is in
The convex architecture of dough sheet composition.
A kind of 3. compound total reflection LED spotlight lens as claimed in claim 1, it is characterised in that first fully reflecting surface
For inner full-reflection face, the segmentation curved formed in dough sheet.
4. compound total reflection LED spotlight lens as claimed in claim 1 a kind of, it is characterised in that first exiting surface is
One plane, its surface are provided with dimpling lattice array.
5. compound total reflection LED spotlight lens as claimed in claim 1 a kind of, it is characterised in that second exiting surface is in
Flat mirror.
A kind of 6. compound total reflection LED spotlight lens as claimed in claim 1, it is characterised in that the refraction convex lens knot
The light energy of light beam of light source in structure, refraction-total reflection-refraction structure and refraction-total reflection-total reflection-total reflection-refraction structure
Distribution proportion 36%：34%：30%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720325845.7U CN207080826U (en) | 2017-03-30 | 2017-03-30 | A kind of compound total reflection LED spotlight lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720325845.7U CN207080826U (en) | 2017-03-30 | 2017-03-30 | A kind of compound total reflection LED spotlight lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207080826U true CN207080826U (en) | 2018-03-09 |
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ID=61427300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720325845.7U Active CN207080826U (en) | 2017-03-30 | 2017-03-30 | A kind of compound total reflection LED spotlight lens |
Country Status (1)
| Country | Link |
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| CN (1) | CN207080826U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107062026A (en) * | 2017-03-30 | 2017-08-18 | 佛山指南针光学科技有限公司 | The compound total reflection LED spotlight lens of one kind |
| CN108775553A (en) * | 2018-06-19 | 2018-11-09 | 苏州欧普照明有限公司 | A kind of lens and light source module group |
-
2017
- 2017-03-30 CN CN201720325845.7U patent/CN207080826U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107062026A (en) * | 2017-03-30 | 2017-08-18 | 佛山指南针光学科技有限公司 | The compound total reflection LED spotlight lens of one kind |
| CN108775553A (en) * | 2018-06-19 | 2018-11-09 | 苏州欧普照明有限公司 | A kind of lens and light source module group |
| CN108775553B (en) * | 2018-06-19 | 2023-07-25 | 苏州欧普照明有限公司 | Lens and light source module |
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