CN206861457U - A kind of diverging lens - Google Patents
A kind of diverging lens Download PDFInfo
- Publication number
- CN206861457U CN206861457U CN201720473878.6U CN201720473878U CN206861457U CN 206861457 U CN206861457 U CN 206861457U CN 201720473878 U CN201720473878 U CN 201720473878U CN 206861457 U CN206861457 U CN 206861457U
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- Prior art keywords
- lens
- utility
- cavity surface
- cambered surface
- cancave cambered
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Abstract
The utility model system provides a kind of diverging lens, is related to lens art.The utility model includes lens mount, and lens mount is provided with lens, and the inside of lens is provided with internal cavity, and internal cavity is also cross lens mount and lens, and internal cavity and lens, the intersection of lens mount are inner cavity surface, and the outer surface of lens is external cavity surface；The core of external cavity surface is provided with the cancave cambered surface to lower recess, and the convex globoidal to raise up is provided with the center of cancave cambered surface.The utility model sets cancave cambered surface to improve the diffusion of light within the specific limits in lensed tip, and the cambered surface to raise up is set in cancave cambered surface, can effectively improve the brightness of spot center, solve the problems, such as Center Dark Spot.
Description
Technical field
Lens art is the utility model is related to, specifically discloses a kind of diverging lens.
Background technology
Diverging lens is widely used in the fields such as flat lamp, television backlight, equal for the light of LED plane light source to be carried out
Even diffusion, improves the range of exposures of light fixture, and diverging lens is the Primary Component in the fields such as illumination.Current diverging lens is by incidence
Face and exit facet composition, the plane of incidence and exit facet are both designed as the diverging lens of smooth arc-shaped surface, but the diffusion of this diverging lens
Effect is limited, can not be by the uniform diffusion of light source maximum magnitude.
A kind of existing diverging lens, exit facet top are additionally provided with the cambered surface to lower recess, increase the range of scatter of light source, but
Due to being sagging simple structure at the top of exit facet, adjustable space is less, and in actual applications, particularly big spacing is answered
Used time, it is easy to the inadequate situation of spot center brightness occur.
Utility model content
Based on this, it is necessary to for prior art problem, there is provided a kind of diverging lens, depression is set simultaneously in lensed tip
Face and crowning, the brightness of spot center can be effectively improved.
To solve prior art problem, the utility model discloses a kind of diverging lens, including lens mount, lens mount are provided with
Lens, the inside of lens are provided with internal cavity, and internal cavity is also cross lens mount and lens, the phase of internal cavity and lens, lens mount
Cross surface is inner cavity surface, and the outer surface of lens is external cavity surface；
The core of external cavity surface is provided with the cancave cambered surface to lower recess, and the convex arc to raise up is provided with the center of cancave cambered surface
Face.
Further, inner cavity surface is coaxially disposed with external cavity surface.
Further, inner cavity surface and the shape of external cavity surface differ.
Further, if lens mount bottom is provided with dry lens pin.
Further, lens pin is specifically provided with three.
The beneficial effects of the utility model are：The utility model discloses a kind of diverging lens, and concave arc is set in lensed tip
Face can improve the diffusion of light within the specific limits, and the cambered surface to raise up is set in cancave cambered surface, can effectively improve
The brightness of spot center, solves the problems, such as Center Dark Spot.
Brief description of the drawings
Fig. 1 is cross-sectional view of the present utility model.
Fig. 2 is dimensional structure diagram of the present utility model.
Fig. 3 is the utility model and the surface of intensity distribution of prior art.
Reference is：Lens mount 10, lens pin 11, lens 20, internal cavity 21, inner cavity surface 211, external cavity surface 22, concave arc
Face 221, convex globoidal 222.
Embodiment
For feature of the present utility model, technological means and the specific purposes reached, function can be further appreciated that, below
The utility model is described in further detail with embodiment with reference to accompanying drawing.
Referring to figs. 1 to Fig. 3.
The utility model embodiment provides a kind of diverging lens, including lens mount 10, lens mount 10 are provided with lens 20, thoroughly
The inside of mirror 20 is provided with internal cavity 21, and internal cavity 21 is also cross lens mount 10 and lens 20, internal cavity 21 and lens 20, lens
The intersection of seat 10 is inner cavity surface 211, and the outer surface of lens 20 is external cavity surface 22；The core of external cavity surface 22 is provided with to recessed
Sunken cancave cambered surface 221, the convex globoidal 222 to raise up is provided with the center of cancave cambered surface 221.
Light source is arranged in internal cavity 21, and the light that light source is sent incides lens 20 from inner cavity surface 211, is gone out from external cavity surface 22
Penetrate, cancave cambered surface 221 can effectively improve the diffusion effect of lens 20, make the range of exposures of light wider, the light at center leads to
Cross convex globoidal 222 to be emitted, the light that convex globoidal 222 can be at convergence center, improve spot center brightness.
The utility model and the surface of intensity distribution of prior art are illustrated in figure 3, ordinate is light distribution, and abscissa is
The position of hot spot, dotted line represent light distribution of the present utility model, the prior art for representing to be recessed at center with star solid line, by scheming
3 is visible, and the center brightness of the utility model hot spot is significantly higher, and convex globoidal 222 effectively improves the brightness of spot center, in reality
In, even setting the backlight of big spacing, the problem of the utility model can effectively solve the problem that spot center luminance shortage.
Based on above-described embodiment, to improve the symmetry of hot spot, inner cavity surface 211 is coaxially disposed with external cavity surface 22, formation
Hot spot disclosure satisfy that most of demand in market.
Based on above-described embodiment, to improve the control light ability of lens 20, inner cavity surface 211 and the shape of external cavity surface 22 are set not
It is identical, it is possible to increase the free degree of the luminous intensity distribution of lens 20.
Based on above-described embodiment, if the bottom of lens mount 10 is provided with dry lens pin 11, it is preferable that lens pin 11 is specifically provided with three
It is individual.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed,
But therefore it can not be interpreted as the limitation to the utility model patent scope.It should be pointed out that for the common of this area
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (5)
1. a kind of diverging lens, it is characterised in that including lens mount (10), the lens mount (10) is provided with lens (20), institute
The inside for stating lens (20) is provided with internal cavity (21), and the internal cavity (21) is also cross the lens mount (10) and the lens
(20), the internal cavity (21) and the lens (20), the intersection of the lens mount (10) are inner cavity surface (211), described
The outer surface of mirror (20) is external cavity surface (22)；
The core of the external cavity surface (22) is provided with the cancave cambered surface (221) to lower recess, at the center of the cancave cambered surface (221)
Provided with the convex globoidal (222) to raise up.
2. a kind of diverging lens according to claim 1, it is characterised in that the inner cavity surface (211) and the external cavity surface
(22) it is coaxially disposed.
3. a kind of diverging lens according to claim 1, it is characterised in that the inner cavity surface (211) and the external cavity surface
(22) shape differs.
4. a kind of diverging lens according to claim 1, it is characterised in that the lens mount (10) parches if bottom is provided with
Mirror pin (11).
5. a kind of diverging lens according to claim 4, it is characterised in that the lens pin (11) is specifically provided with three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720473878.6U CN206861457U (en) | 2017-04-28 | 2017-04-28 | A kind of diverging lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720473878.6U CN206861457U (en) | 2017-04-28 | 2017-04-28 | A kind of diverging lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206861457U true CN206861457U (en) | 2018-01-09 |
Family
ID=60822343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720473878.6U Active CN206861457U (en) | 2017-04-28 | 2017-04-28 | A kind of diverging lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206861457U (en) |
-
2017
- 2017-04-28 CN CN201720473878.6U patent/CN206861457U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |