CN208058747U - A kind of wide-angle lens and light emitting module - Google Patents
A kind of wide-angle lens and light emitting module Download PDFInfo
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- CN208058747U CN208058747U CN201821196609.0U CN201821196609U CN208058747U CN 208058747 U CN208058747 U CN 208058747U CN 201821196609 U CN201821196609 U CN 201821196609U CN 208058747 U CN208058747 U CN 208058747U
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Abstract
The utility model discloses a kind of wide-angle lens and light emitting module, including lens body；Lens body includes：First incidence surface, the second incidence surface, plane of refraction, fully reflecting surface, the first light-emitting surface；Lens body bottom is equipped with round table-like recess；Recess top surface is the first incidence surface, and side wall is the second incidence surface；First light-emitting surface is the axisymmetric curved surface to raise up, is located at the surface of recess；Plane of refraction is upwardly extended from the first light-emitting surface bottom, and is inclined outwardly；Plane of refraction upper end is higher than the peak of the first light-emitting surface；Fully reflecting surface is upwardly extended from concave bottom, and the upper end is intersected with plane of refraction upper end；Fully reflecting surface is axisymmetric curved surface, and curvature meets the following conditions：Light after fully reflecting surface reflects, then through plane of refraction project light and the central shaft of lens body between angle be less than 50 °.Technical solution provided by the utility model can not only generate angle pencil of ray with the lamps and lanterns of its making, and not will produce dazzle, to meet customer need.
Description
Technical field
The utility model belongs to Optical devices technical field more particularly to a kind of wide-angle lens and light emitting module.
Background technology
With the fast development of illumination market, the subdivision of application scenarios upgrades, and the requirement to lamp luminescence angle is increasingly
It is high.The type of lamps and lanterns can be divided into arrow beam of light, middle light beam and angle pencil of ray three classes according to the size of light emitting angle.Generally use at present
Conventional TIR lens, planoconvex spotlight and reflector make angle pencil of ray lamps and lanterns.As shown in Fig. 1, Fig. 2 and Fig. 3.
But when making angle pencil of ray lamps and lanterns using conventional TIR lens, light emitting angle would generally be limited to, Bu Nengman
Sufficient customer requirement；And when planoconvex spotlight and reflector being used to make angle pencil of ray lamps and lanterns, and dazzle is easy tod produce, it needs extraly to increase
Add antiglare equipment to solve the glare problem, to increase lamps and lanterns cost of manufacture.
Utility model content
The utility model is intended to provide a kind of wide-angle lens and light emitting module, can not only be generated with lamps and lanterns of its making
Angle pencil of ray, and dazzle is not will produce, to meet customer need.
In order to achieve the above objectives, the technical solution adopted in the utility model is as follows：
A kind of wide-angle lens disclosed by the utility model, including：Lens body；The lens body includes：First enters
Smooth surface, the second incidence surface, plane of refraction, fully reflecting surface, the first light-emitting surface；The lens body bottom is equipped with recess, the recess
It is round table-like；The top surface of the recess is the first incidence surface, and the side wall of the recess is the second incidence surface；First light-emitting surface
For the axisymmetric curved surface to raise up, and the first light-emitting surface is located at the surface of the recess；The plane of refraction is from described first
The bottom of light-emitting surface upwardly extends, and plane of refraction is inclined outwardly from the bottom up；The upper end of the plane of refraction goes out higher than described first
The peak of smooth surface；The fully reflecting surface is upwardly extended from the concave bottom, and on fully reflecting surface upper end and the plane of refraction
End intersection；The fully reflecting surface is axisymmetric curved surface, and the curvature of fully reflecting surface meets the following conditions：Light is through the total reflection
Angle after the reflection of face, then between the light projected through the plane of refraction and the central shaft of the lens body is less than 50 °.
Further, further include：Second light-emitting surface；Second light-emitting surface is minute surface；The second light-emitting surface level is set
It is placed in the top of the lens body.
Preferably, the surface of first incidence surface is pearl face or Sai lines.
Preferably, the fully reflecting surface is plaited surface.
A kind of light emitting module, including：Wide-angle lens described in light source and above-mentioned any one；The light source is located at described
The bottom centre position of wide-angle lens.
Preferably, the light source is LED light.
Wide-angle lens provided by the utility model and light emitting module, be provided with include the first incidence surface, the second incidence surface,
The lens body of plane of refraction, fully reflecting surface and the first light-emitting surface.Since the first light-emitting surface is the axisymmetric curved surface to raise up, and
Positioned at the surface of incidence surface, therefore, it is actually formed a planoconvex spotlight between incidence surface and the first light-emitting surface, and planoconvex spotlight
Wide-angle light can be generated, the lamps and lanterns produced with it also can correspondingly generate angle pencil of ray.Meanwhile plane of refraction is from first
The bottom of light-emitting surface upwardly extends, and is inclined outwardly, and fully reflecting surface is extended upwardly to from lens body bottom to intersect with plane of refraction,
In this way, can not only ensure that the light injected from the second incidence surface is reflected back the target area of top by fully reflecting surface, it is heavier
What is wanted is a bit, when bottom edge region of the light through the first light-emitting surface that small part is injected from the first incidence surface is refracted to refraction
When on face, the upper area that fully reflecting surface can be refracted to through plane of refraction is projected through plane of refraction again after fully reflecting surface reflects,
Since the angle between the emergent ray and the central shaft of lens body is less than 50 °, that is, it is less than the upward angle of visibility of human eye, therefore, energy
Enough it is effectively prevented dazzle generation.As it can be seen that the lens of the utility model design inherently have anti-dazzle effect, without picture
The prior art extraly increases antiglare equipment to lamps and lanterns again like that, therefore can also reduce the cost of manufacture of lamps and lanterns.
Description of the drawings
Fig. 1 is the sectional view of existing TIR lens；
Fig. 2 is the sectional view of existing planoconvex spotlight；
Fig. 3 is the sectional view of existing reflector；
Fig. 4 is the sectional view of wide-angle lens in the utility model embodiment；
Fig. 5 is the anti-dazzle principle schematic of wide-angle lens in the utility model embodiment；
In figure：1 is the first incidence surface, and 2 be the second incidence surface, and 3 be plane of refraction, and 4 be fully reflecting surface, and 5 be the first light-emitting surface,
6 be recess, and 7 be the second light-emitting surface, and 8 be light source, and 9 be human eye.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing, to this reality
It is further elaborated with novel.
Fig. 4 is the sectional view of wide-angle lens in the utility model embodiment, including：Lens body；The lens body
Including：First incidence surface 1, the second incidence surface 2, plane of refraction 3, fully reflecting surface 4, the first light-emitting surface 5；The lens body bottom is set
It is round table-like to have recess 6, the recess 6；The top surface of the recess 6 is the first incidence surface 1, and the side wall of the recess 6 is second
Incidence surface 2；First light-emitting surface 5 is the axisymmetric curved surface to raise up, and the first light-emitting surface 5 is being located at the recess 6 just
Top；First light-emitting surface 5 is smooth surface；The width of first light-emitting surface 5 is more than recess 6, i.e. the first light-emitting surface 5 can completely " covering "
Recess 6.The plane of refraction 3 is upwardly extended from the bottom of first light-emitting surface 5, and plane of refraction 3 is inclined outwardly from the bottom up；Institute
The upper end for stating plane of refraction 3 is higher than the peak of first light-emitting surface 5；The fully reflecting surface 4 prolongs upwards from 6 bottoms of the recess
It stretches, and 4 upper end of fully reflecting surface is intersected with 3 upper end of the plane of refraction；The fully reflecting surface 4 is axisymmetric curved surface, and fully reflecting surface 4
Curvature meet the following conditions：Light through the fully reflecting surface 4 reflection after, then through the plane of refraction 3 project light with it is described
Angle between the central shaft of lens body is less than 50 °.Since the upward angle of visibility of human eye is 50 °, downwards angle of visibility is 70 °, such as Fig. 5 institutes
Show, when lamp installation is above human body, and the light that lamps and lanterns are sent out is less than the upward angle of visibility of human eye, it will be able to be effectively prevented from dazzle
Generation.
In the present embodiment, further include：Second light-emitting surface 7；Second light-emitting surface 7 is minute surface；Second light-emitting surface, 7 water
The flat top for being set to the lens body.The light projected from the first light-emitting surface 5, plane of refraction 3 is penetrated by the second light-emitting surface 7
Go out.
In order to which the light for making light source send out more divergently enters lens body, pearl is done on the surface of first incidence surface 1
Face or the processing of Sai lines.In order to be more efficiently totally reflected, the fully reflecting surface 4 does plaited surface processing.
A kind of light emitting module is also disclosed in the utility model, including：Light source 8 and above-mentioned wide-angle lens；The light source 8 is located at
The bottom centre position of the wide-angle lens.Preferably, the light source 8 is LED light.
As shown in Figure 4 and Figure 5, the light that LED light is sent out is divided into two parts, enters light from the first incidence surface 1 and second respectively
Lens body is injected in face 2.Most of light can be refracted to the first light-emitting surface 5 by the first incidence surface 1, be penetrated from the second light-emitting surface 7
Go out to realize light distribution；Fraction veiling glare is refracted to by the first incidence surface 1 at the bottom margin of first light-emitting surface 5, and then is refracted to
Plane of refraction 3 refracts to the upper area of fully reflecting surface 4 through plane of refraction 3, then reflexes to plane of refraction 3 through fully reflecting surface 4, passes through again
Plane of refraction 3 projects after reflecting from the second light-emitting surface 7, and the angle between this some light and lens body central shaft is less than on human eye
Visual angle, so as to solve the glare problem caused by above-mentioned fraction veiling glare.The light of remainder passes through the second incidence surface 2
It is refracted to fully reflecting surface 4, reflexes to plane of refraction 3 or the first light-emitting surface 5 through fully reflecting surface 4, then from the second light-emitting surface 7 after refraction
It projects and realizes light distribution.The round table-like recess in lens body bottom is actually the standard cylinder with certain pattern draft.
Wide-angle lens provided by the utility model and light emitting module, be provided with include the first incidence surface, the second incidence surface,
The lens body of plane of refraction, fully reflecting surface and the first light-emitting surface.Since the first light-emitting surface is the axisymmetric curved surface to raise up, and
Positioned at the surface of incidence surface, therefore, it is actually formed a planoconvex spotlight between incidence surface and the first light-emitting surface, and planoconvex spotlight
Wide-angle light can be generated, the lamps and lanterns produced with it also can correspondingly generate angle pencil of ray.Meanwhile plane of refraction is from first
The bottom of light-emitting surface upwardly extends, and is inclined outwardly, and fully reflecting surface is extended upwardly to from lens body bottom to intersect with plane of refraction,
In this way, can not only ensure that the light injected from the second incidence surface is reflected back the target area of top by fully reflecting surface, it is heavier
What is wanted is a bit, when bottom edge region of the light through the first light-emitting surface that small part is injected from the first incidence surface is refracted to refraction
When on face, the upper area that fully reflecting surface can be refracted to through plane of refraction is projected through plane of refraction again after fully reflecting surface reflects,
Since the angle between the emergent ray and the central shaft of lens body is less than 50 °, that is, it is less than the upward angle of visibility of human eye, therefore, energy
Enough it is effectively prevented dazzle generation.As it can be seen that the lens of the utility model design inherently have anti-dazzle effect, without picture
The prior art extraly increases antiglare equipment to lamps and lanterns again like that, therefore can also reduce the cost of manufacture of lamps and lanterns.
Certainly, the utility model can also have other various embodiments, without departing substantially from the spirit of the present invention and its essence
In the case of, those skilled in the art can make various corresponding change and deformations, but these phases according to the utility model
The change and distortion answered should all belong to the protection domain of the utility model the attached claims.
Claims (6)
1. a kind of wide-angle lens, which is characterized in that including：Lens body；The lens body includes：First incidence surface (1),
Second incidence surface (2), plane of refraction (3), fully reflecting surface (4), the first light-emitting surface (5)；The lens body bottom is equipped with recess
(6), the recess (6) is round table-like；The top surface of the recess (6) is the first incidence surface (1), and the side wall of the recess (6) is
Second incidence surface (2)；First light-emitting surface (5) is the axisymmetric curved surface to raise up, and the first light-emitting surface (5) is positioned at described
The surface of recess (6)；The plane of refraction (3) upwardly extends from the bottom of first light-emitting surface (5), and plane of refraction (3) from
Under be up inclined outwardly；The upper end of the plane of refraction (3) is higher than the peak of first light-emitting surface (5)；The fully reflecting surface
(4) it is upwardly extended from described recess (6) bottom, and fully reflecting surface (4) upper end is intersected with the plane of refraction (3) upper end；It is described complete
Reflecting surface (4) is axisymmetric curved surface, and the curvature of fully reflecting surface (4) meets the following conditions：Light is anti-through the fully reflecting surface (4)
Angle after penetrating, then between the light projected through the plane of refraction (3) and the central shaft of the lens body is less than 50 °.
2. wide-angle lens according to claim 1, which is characterized in that further include：Second light-emitting surface (7)；Described second
Light-emitting surface (7) is minute surface；Second light-emitting surface (7) is horizontally placed on the top of the lens body.
3. wide-angle lens according to claim 1, which is characterized in that the surface of first incidence surface (1) is pearl face
Or Sai lines.
4. wide-angle lens according to claim 1, which is characterized in that the fully reflecting surface (4) is plaited surface.
5. a kind of light emitting module, which is characterized in that including：Wide angle described in light source (8) and Claims 1-4 any one
Lens；The light source (8) is located at the bottom centre position of the wide-angle lens.
6. light emitting module according to claim 5, which is characterized in that the light source (8) is LED light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821196609.0U CN208058747U (en) | 2018-07-26 | 2018-07-26 | A kind of wide-angle lens and light emitting module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821196609.0U CN208058747U (en) | 2018-07-26 | 2018-07-26 | A kind of wide-angle lens and light emitting module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208058747U true CN208058747U (en) | 2018-11-06 |
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ID=63982184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821196609.0U Active CN208058747U (en) | 2018-07-26 | 2018-07-26 | A kind of wide-angle lens and light emitting module |
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| CN (1) | CN208058747U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112197205A (en) * | 2020-10-28 | 2021-01-08 | 武汉金东方智能景观股份有限公司 | Intelligent zooming LED high-power projection lamp |
| CN112539361A (en) * | 2020-12-09 | 2021-03-23 | 长春希达电子技术有限公司 | High-uniformity blackboard lamp lens |
-
2018
- 2018-07-26 CN CN201821196609.0U patent/CN208058747U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112197205A (en) * | 2020-10-28 | 2021-01-08 | 武汉金东方智能景观股份有限公司 | Intelligent zooming LED high-power projection lamp |
| CN112539361A (en) * | 2020-12-09 | 2021-03-23 | 长春希达电子技术有限公司 | High-uniformity blackboard lamp lens |
| CN112539361B (en) * | 2020-12-09 | 2022-12-27 | 长春希达电子技术有限公司 | High-uniformity blackboard lamp lens |
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