CN209622699U - A kind of ultra-low-angle lens light distributing system - Google Patents
A kind of ultra-low-angle lens light distributing system Download PDFInfo
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- CN209622699U CN209622699U CN201822207349.9U CN201822207349U CN209622699U CN 209622699 U CN209622699 U CN 209622699U CN 201822207349 U CN201822207349 U CN 201822207349U CN 209622699 U CN209622699 U CN 209622699U
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Abstract
The utility model relates to a kind of ultra-low-angle lens light distributing systems, the ultra-low-angle lens light distributing system include positioned at light source exit end and to the light source convergence imaging the first lens unit and positioned at the imaging exit end and make imaging project beam collimation project the second lens unit, through first lens unit formed picture size be less than the light source ruler.The utility model has luminous flux big, and light utilization efficiency is high, and structure is simple, feature at low cost.
Description
Technical field
The utility model relates to optical field more particularly to a kind of ultra-low-angle lens light distributing systems.
Background technique
It can generally go out in light source in lighting areas such as searchlight, flashlight, spotlights in order to realize the adjusting to light beam
It penetrates end and places lens, to carry out light distribution adjusting to light.
But traditional total internal reflection TIR lens and simple simple lens are difficult to realize ultra-low-angle light distribution, final light
The angle of emergence that source is formed is bigger, and central light strength is small, it is difficult to meet the requirement to lighting effect such as searchlight, spotlight.
Utility model content
In view of the above problems, lens group image-forming principle is utilized the purpose of this utility model is to provide a kind of, can makes to be emitted
The angle of emergence collimation of light projects and the simple ultra-low-angle lens light distributing system of structure.
To achieve the goals above, the technical solution of the utility model protection is a kind of ultra-low-angle lens light distributing system,
It is characterized by: the ultra-low-angle lens light distributing system includes,
Positioned at light source exit end and to the first lens unit of light source convergence imaging, through the first lens unit shape
At picture size be less than the light source size；
Positioned at the imaging exit end and make imaging project beam collimation project the second lens unit.
Preferably, the imaging is formed in the focus of first lens unit far from the light source.
Preferably, the light source is located at first lens unit in the focus of the light source.
Preferably, first lens unit includes the first lens group and positioned at the second of the first lens group exit end
Lens group；
The light beam of the light source is first once converged through first lens group, then is imaged through the secondary convergence of the second lens group.
Preferably, the light beam of light source angle of emergence after first lens group once converges collimates.
Preferably, first lens group include be arranged successively along second lens unit direction and axle center be located at it is same
Multiple plano-convex lens on straight line, the convex surfaces of the plano-convex lens is towards second lens unit direction.
Preferably, the multiple plano-convex lens become larger along second lens unit direction size.
Preferably, second lens group include be arranged successively along second lens unit direction and axle center be located at it is same
Multiple plano-convex lens on straight line, the convex surfaces of the plano-convex lens is towards the light source direction.
Preferably, the multiple plano-convex lens gradually become smaller along second lens unit direction size.
Preferably, second lens group include be arranged successively along second lens unit direction and axle center be located at it is same
Biconvex lens and plano-convex lens on straight line；
The maximum curvature radius on the biconvex lens towards the convex surface of light source direction is less than towards the second lens unit direction
Convex surface maximum curvature radius, the convex surfaces of the plano-convex lens is towards the light source direction.
Preferably, exist between the biconvex lens and plano-convex lens, size is along second lens unit direction ruler
It is very little to gradually become smaller.
Preferably, second lens unit includes biconvex lens, and the biconvex lens is towards the convex surface of light source direction
Maximum curvature radius is less than the maximum curvature radius on the convex surface far from light source direction.
Compared with the prior art, the advantages of the utility model are: by the way of multiple lens combinations, and ingenious utilization
Lens group image-forming principle makes light source first be accumulated collimation and projects, then is focused into the picture as being less than primary source at size, so that at
It becomes clear as clear enough, then the imaging is projected through collimated, the cooperation between lens and lens has both been utilized, to beam projecting
Angle has carried out on-demand adjusting, while designing simply, structurally reasonable.
Detailed description of the invention
Fig. 1 is a kind of ultra-low-angle lens light distributing system structural schematic diagram of the application.
Fig. 2 is a kind of optical path effect diagram of ultra-low-angle lens light distributing system of the application.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model
Limitation.
For introductory explanation, Fig. 1-2 shows a kind of a kind of implementation of ultra-low-angle lens light distributing system of the application
Example.The ultra-low-angle lens light distributing system includes positioned at light source exit end and to the first lens unit of light source convergence imaging
1 and positioned at the imaging exit end and make imaging project beam collimation project the second lens unit 2, the imaging
Size is less than the size of the light source.
Light source can be various, such as can be single led lamp, is also possible to multiple LED light aggregation moldings, it is clear that single
The size of a LED light is less than multiple LED light and assembles molding size.Using optical imaging concept, light source is first passed through first thoroughly
Mirror unit 1 is imaged as picture body of the size less than light source, can realize converge to source light first in this way, improve the light of light source
Utilization rate is compared when then carrying out angular adjustment by light beam of second lens unit 2 to imaging again collimates the angle of emergence
Use traditional total internal reflection lens or single unzoned lens directly for source light angle carries out light distribution adjusting in previous, energy
Make full use of the light beam of imaging succinctly clean, the bright feature of brightness improves effective illumination further to ensure luminous flux
Efficiency.
In order to sufficiently realize the utilization rate to light source, in the present embodiment, the imaging is formed in the first lens list
In first 1 focus far from the light source.It is well known that the intensity of illumination at lens focus is most strong, light utilization is most herein
Height then can sufficiently ensure the luminous flux finally collimated when carrying out light distribution adjusting to the imaging for taking shape in focal point.Further,
The light source also is located at first lens unit 1 in the focus of the light source, specific as shown in Figure 2.
First lens unit 1 include the first lens group 11 and positioned at 11 exit end of the first lens group second thoroughly
Microscope group 12, the light beam of the light source are first imaged after the first lens group 11 once convergence, then through 12 2 convergences of the second lens group, tool
Body reference orientation see Fig. 2 from left to right.
Specifically, first lens group 11 include be arranged successively along 2 direction of the second lens unit and axle center position
In multiple plano-convex lens on same straight line, the convex surfaces of the plano-convex lens is towards 2 direction of the second lens unit.Plano-convex is saturating
Mirror specifically have it is several, this determine according to actual needs, however, number how, must cooperate the second lens group 12 to be imaged
Size is less than dimension of light source.As a kind of possibility, the light beam of light source collimates after the convergence of the first lens group 11 to be projected, in this implementation
It is in this way, for details, reference can be made to the optical path effect diagrams of Fig. 2 in example.
Multiple plano-convex lens can wait greatly, but in order to improve light source light utilization efficiency as far as possible, combine saving
The purpose of cost, the multiple plano-convex lens become larger along the 2 direction size of the second lens unit, rather than along second
2 direction size of lens unit is gradually reduced, because when the lens sizes near close to sources are greater than other lenses size, Ke Nengcun
Defect be exactly the full-size lens and that there are sizes between the lens of the full-size lens is poor, by the size
The light that difference projects can not be received by the lens near the full-size lens, few so as to cause real available light beam,
Light source utilization rate is not high, also because there are size waste, causing to expend excessive production cost in vain.
But still it is noted that also needs to meet real according to actual needs when plano-convex lens size is gradually increased from left to right
The purpose of existing light convergence is that can collimate injection after satisfaction converges source light once in the present embodiment.
Second lens group 12 includes being arranged successively along 2 direction of the second lens unit and axle center is located at same straight line
On multiple plano-convex lens, the convex surfaces of the plano-convex lens is towards the light source direction.Equally, multiple plano-convex lens can wait
Greatly, but in order to balance cost and light utilization efficiency, multiple plano-convex lens at this along the 2 direction size of the second lens unit by
Gradual change is small, so that the size after secondary convergence imaging is less than dimension of light source, light source forms some light after secondary imaging in the application
Source.
Certainly, second lens group 12 is also possible that as shown in the present embodiment Fig. 1, including along the second lens list
The biconvex lens and plano-convex lens that first 2 directions are arranged successively and axle center is located along the same line, the biconvex lens is towards light source side
To convex surface maximum curvature radius be less than towards 2 direction of the second lens unit convex surface maximum curvature radius, the plano-convex
The convex surface of lens is towards the light source direction, in order to converge again to the light once converged.It is utilized for the purposes of taking into account light
Rate and cost problem exist between told biconvex lens and plano-convex lens, and size is along the 2 direction size of the second lens unit
It gradually becomes smaller.
Second lens unit 2 includes biconvex lens, most yeast of the biconvex lens towards the convex surface of light source direction
Rate radius is less than the maximum curvature radius on the convex surface far from light source direction.In this way, the convex surface far from light source direction is compared to direction
Just there is emission function, in this way when the light of script convergence can be after biconvex lens projection for the convex surface of light source direction
Angle of emergence collimation is realized in the suitable situation of Curvature varying, to reach light distribution purpose.
It will be apparent that second lens unit 2 may include the biconvex lens that multiple axle center are on same straight line, but need to mention
And lens are more, light is lost more in communication process, then will lead to luminous flux reduction, while also increasing and being processed into
This, so, comprehensively consider, in the present embodiment, using a biconvex lens.Moreover, second lens unit 2 can also be by
Multiple plano-convex lens combinations or crescent lens combination are constituted, as long as can be by the cooperation between lens and lens, to beam projecting
Angle is adjusted on demand, reveals firing angle collimation strictly according to the facts, while structure is simple, at low cost.
Other than above-mentioned improvement, other similar improvement are also contained in the improvement threshold of the utility model, herein
It repeats no more.While there has been shown and described that the embodiments of the present invention, it will be appreciated by those skilled in the art that: it is not taking off
These embodiments can be carried out with a variety of variations, modification, replacement and deformation in the case where from the principles of the present invention and objective.
Claims (12)
1. a kind of ultra-low-angle lens light distributing system, it is characterised in that: the ultra-low-angle lens light distributing system includes,
Positioned at light source exit end and to the first lens unit (1) of light source convergence imaging, through first lens unit (1)
The size of the picture of formation is less than the size of the light source；
Positioned at the imaging exit end and make imaging project beam collimation project the second lens unit (2).
2. system according to claim 1, it is characterised in that:
The imaging is formed in first lens unit (1) far from the focus of the light source.
3. system according to claim 1 or claim 2, it is characterised in that:
The light source is located at first lens unit (1) in the focus of the light source.
4. system according to claim 1, it is characterised in that:
First lens unit (1) is including the first lens group (11) and positioned at the second of the first lens group (11) exit end
Lens group (12)；
The light beam of the light source is first once converged through first lens group (11), then is pooled through the second lens group (12) is secondary
Picture.
5. system according to claim 4, it is characterised in that:
The light beam of light source angle of emergence after first lens group (11) once convergence collimates.
6. system according to claim 4, it is characterised in that:
First lens group (11) includes being arranged successively along the second lens unit (2) direction and axle center is located at same straight line
On multiple plano-convex lens, the convex surfaces of the plano-convex lens is towards the second lens unit (2) direction.
7. system according to claim 6, it is characterised in that:
The multiple plano-convex lens become larger along the second lens unit (2) direction size.
8. system according to claim 4, it is characterised in that:
Second lens group (12) includes being arranged successively along the second lens unit (2) direction and axle center is located at same straight line
On multiple plano-convex lens, the convex surfaces of the plano-convex lens is towards the light source direction.
9. system according to claim 8, it is characterised in that:
The multiple plano-convex lens gradually become smaller along the second lens unit (2) direction size.
10. system according to claim 4, it is characterised in that:
Second lens group (12) includes being arranged successively along the second lens unit (2) direction and axle center is located at same straight line
On biconvex lens and plano-convex lens；
The maximum curvature radius on the biconvex lens towards the convex surface of light source direction is less than towards the second lens unit (2) direction
The maximum curvature radius on convex surface, the convex surfaces of the plano-convex lens is towards the light source direction.
11. system according to claim 10, it is characterised in that:
Exist between the biconvex lens and plano-convex lens, size gradually becomes along the second lens unit (2) direction size
It is small.
12. system according to claim 1, it is characterised in that:
Second lens unit (2) includes biconvex lens, maximum curvature of the biconvex lens towards the convex surface of light source direction
Radius is less than the maximum curvature radius on the convex surface far from light source direction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822207349.9U CN209622699U (en) | 2018-12-26 | 2018-12-26 | A kind of ultra-low-angle lens light distributing system |
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| CN201822207349.9U CN209622699U (en) | 2018-12-26 | 2018-12-26 | A kind of ultra-low-angle lens light distributing system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556083A (en) * | 2018-12-26 | 2019-04-02 | 赛尔富电子有限公司 | A kind of ultra-low-angle lens light distributing system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109556083A (en) * | 2018-12-26 | 2019-04-02 | 赛尔富电子有限公司 | A kind of ultra-low-angle lens light distributing system |
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