CN202453523U - Fresnel lens - Google Patents
Fresnel lens Download PDFInfo
- Publication number
- CN202453523U CN202453523U CN2012200559483U CN201220055948U CN202453523U CN 202453523 U CN202453523 U CN 202453523U CN 2012200559483 U CN2012200559483 U CN 2012200559483U CN 201220055948 U CN201220055948 U CN 201220055948U CN 202453523 U CN202453523 U CN 202453523U
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Abstract
The utility model discloses a Fresnel lens, which comprises a shell and a lens, wherein the lens is arranged on the shell; the lens is runway-shaped or rectangular; the lens comprises an incidence surface and an emergence surface; the incidence surface has a tooth-shaped structure; and the emergence surface is a plane. By adoption of the technical scheme, the utility model has the advantages that by setting the structural shape of the Fresnel lens, the Fresnel lens is attractive in appearance, and a runway-shaped or rectangular optical lighting effect can be achieved; and meanwhile, due to uniform illumination, the Fresnel lens can meet lighting requirements for runway-shaped or rectangular fields of view, the overall lighting uniformity and the overall lighting brightness are improved, and a good shooting effect is achieved.
Description
Technical field
The utility model relates to a kind of lens, is specifically related to a kind of Fresnel Lenses.
Background technology
As shown in Figure 3, the Fresnel Lenses of prior art.Fresnel Lenses is a kind of optical element of microtexture, sees that from the front it resembles a boomerang plate, is made up of the concentric garden of ring by ring, sees that from section its surface is made up of a series of sawtooth pattern grooves, and core is the ellipse camber line.Angle is different between each groove part and the adjacent grooves, but all light is concentrated a place, forms gonglion, the just focus of lens.Each groove part can be regarded an independently lenslet as, is adjusted to directional light or optically focused to light, and obtaining optical effect is the circular illumination effect.But under some special lightings, imaging situation,, need use track shape or rectangular optical illuminating effect such as camera, outdoor, room lighting.
The utility model content
For solving the problems of the technologies described above; The purpose of the utility model is the Fresnel Lenses that provides a kind of, and good looking appearance can access track shape or rectangular optical illuminating effect; Illuminance is even; Can satisfy the lighting requirement of taking track shape or rectangular field, improve integral illumination homogeneity and integral illumination brightness, reach better shooting effect.
For achieving the above object, the technical scheme of the utility model is following: a kind of Fresnel Lenses, comprise housing and lens, and said lens are arranged on the said housing, and said lens are track shape or rectangle; Said lens comprise the plane of incidence and exit facet, and the said plane of incidence is provided with tooth-shape structure, and said exit facet is the plane.
Preferably, said tooth-shape structure is respectively the fine and closely woven groove ring that outwards distributes layer by layer.
Preferably, the cross section of said groove ring is a triangle.
Preferably, said lens are that plastic optical material or glass optical material are processed.
Preferably, said tooth-shape structure is provided with one or more.
Adopt the beneficial effect of present technique scheme to be: through the shape of this structure Fresnel Lenses is set, to make this lens-shape attractive in appearance, can obtain track shape or rectangular optical illuminating effect simultaneously; Because the Fresnel Lenses illuminance is even, can satisfy the lighting requirement of taking track shape or rectangular field simultaneously, improve integral illumination homogeneity and integral illumination brightness, reach better shooting effect.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the utility model embodiment technology; To do to introduce simply to the accompanying drawing of required use in the embodiment technical description below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of embodiment of the utility model.
Fig. 2 is the schematic cross-section of a kind of embodiment of the utility model.
Fig. 3 is the prior art constructions synoptic diagram.
The numeral corresponding component title represented among the figure with letter:
1. housing 2. lens 3. planes of incidence 4. exit facets 5. groove rings.
Embodiment
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment 1
As depicted in figs. 1 and 2, a kind of embodiment of the utility model, a kind of Fresnel Lenses comprises housing 1 and lens 2, and lens 2 are arranged on the housing 1, and lens 2 are track shape; Lens 2 comprise the plane of incidence 3 and exit facet 4, and the plane of incidence 3 is provided with tooth-shape structure, and exit facet 4 is the plane.Tooth-shape structure is the fine and closely woven groove ring 5 that outwards distributes layer by layer, and the cross section of groove ring 5 is a triangle.In the present embodiment, lens 2 are processed for plastic optical material, and tooth-shape structure is provided with a kind of.
Principle of work: light source emits beam, and shines directly on the plane of incidence 3 of lens 2, because the plane of incidence 3 is provided with the fine and closely woven groove ring 5 that outwards distributes layer by layer; The cross section of groove ring 5 is a triangle, and the emergent ray direction penetrates from exit facet 4 through after repeatedly reflecting; It is wider to make that the emergent ray direction distributes; Homogeneity is better, and brightness is higher, takes the object view better effects if like this.
All the other are identical with embodiment 1, and difference is that lens 2 are rectangle.According to the difference of lens use occasion, the difference of required illumination demand is provided with different shapes, thereby satisfies the different illumination requirement.
Embodiment 3
All the other are identical with embodiment 1, and difference is that lens 2 are processed for the glass optical material, and according to the difference of product function demand, the optical effect that the lens that lens that the glass optical material processes can process than plastic optical material are set is better.
Embodiment 4
All the other are identical with embodiment 1, and difference is that tooth-shape structure is provided with two kinds, according to the difference of product function demand, one or more tooth-shape structures is set, thereby satisfies the different illumination requirement.
Adopt the beneficial effect of present technique scheme to be: through the shape of this structure Fresnel Lenses is set, to make this lens-shape attractive in appearance, can obtain track shape or rectangular optical illuminating effect simultaneously; Because the Fresnel Lenses illuminance is even, can satisfy the lighting requirement of taking track shape or rectangular field simultaneously, improve integral illumination homogeneity and integral illumination brightness, reach better shooting effect.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation of spirit that does not break away from the utility model or scope in other embodiments among this paper.Therefore, the utility model will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (5)
1. a Fresnel Lenses comprises housing and lens, and said lens are arranged on the said housing, it is characterized in that, said lens are track shape or rectangle; Said lens comprise the plane of incidence and exit facet, and the said plane of incidence is provided with tooth-shape structure, and said exit facet is the plane.
2. a kind of Fresnel Lenses according to claim 1 is characterized in that, said tooth-shape structure is the fine and closely woven groove ring that outwards distributes layer by layer.
3. a kind of Fresnel Lenses according to claim 1 and 2 is characterized in that, the cross section of said groove ring is a triangle.
4. a kind of Fresnel Lenses according to claim 1 and 2 is characterized in that, said lens are that plastic optical material or glass optical material are processed.
5. a kind of Fresnel Lenses according to claim 1 and 2 is characterized in that said tooth-shape structure is provided with one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200559483U CN202453523U (en) | 2012-02-21 | 2012-02-21 | Fresnel lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200559483U CN202453523U (en) | 2012-02-21 | 2012-02-21 | Fresnel lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202453523U true CN202453523U (en) | 2012-09-26 |
Family
ID=46869378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200559483U Expired - Fee Related CN202453523U (en) | 2012-02-21 | 2012-02-21 | Fresnel lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202453523U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104122608A (en) * | 2013-04-24 | 2014-10-29 | 联钢精密科技(苏州)有限公司 | Fresnel Lens |
-
2012
- 2012-02-21 CN CN2012200559483U patent/CN202453523U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104122608A (en) * | 2013-04-24 | 2014-10-29 | 联钢精密科技(苏州)有限公司 | Fresnel Lens |
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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: 20120926 Termination date: 20190221 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |