CN104122608A - Fresnel Lens - Google Patents
Fresnel Lens Download PDFInfo
- Publication number
- CN104122608A CN104122608A CN201310143756.7A CN201310143756A CN104122608A CN 104122608 A CN104122608 A CN 104122608A CN 201310143756 A CN201310143756 A CN 201310143756A CN 104122608 A CN104122608 A CN 104122608A
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- fresnel lenses
- tooth
- plane
- straight line
- shape structure
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Abstract
The invention discloses a Fresnel lens which includes an incident face and an emitting face. The incident face is provided with a linear tooth-form structure with four areas and the emitting face is a plane. The beneficial effects of the Fresnel lens are that rectangular illuminating light spots can be output and the light spots are uniformly distributed; and the Fresnel lens is higher in light-energy utilization rate and convenient to machine and manufacture.
Description
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Technical field
The present invention relates to a kind of lens, be specifically related to a kind of Fresnel Lenses.
Background technology
Fresnel Lenses is a kind of optical element of microtexture, sees that it is as a boomerang plate from front, the concentric garden of ring by ring, consists of, and from section, its surface is comprised of a series of sawtooth pattern grooves, and core is ellipse camber line.Between each groove part and adjacent notches, angle is different, but all light is concentrated to a place, forms gonglion, the namely focus of lens.Each groove part can be regarded an independently lenslet as, and light is adjusted to directional light or optically focused, and obtaining optical effect is circular illumination effect.But in some special lightings, imaging situation, such as camera, outdoor, room lighting, need to use ellipse or rectangular optical illuminating effect.
Need a kind of Fresnel Lenses, when obtaining high-level efficiency Uniform Illumination effect, obtain the illuminating effect of ellipse or rectangular light spot, the lens for obtaining ellipse or rectangular light spot of prior art are all circular tooth-shape structures, in layer fine and closely woven distribution.
Summary of the invention
For solving the problems of the technologies described above, when the object of the present invention is to provide a kind of energy high-level efficiency Uniform Illumination, can access the Fresnel Lenses of ellipse or rectangular optical illuminating effect.
For achieving the above object, technical scheme of the present invention is as follows: a kind of Fresnel Lenses, comprise the plane of incidence and exit facet, and the above-mentioned plane of incidence is provided with the straight line tooth-shape structure in four regions, and above-mentioned tooth-shape structure is lineal layout, and above-mentioned exit facet is plane.
Further, above-mentioned straight line tooth-shape structure diagonal angle arranges identical, above-mentioned four regions, and the square crossing of the profile of tooth of straight line described in adjacent area direction distributes.
Further, the cross section of groove structure described above is triangle
Further, above-mentioned Fresnel Lenses is rectangle or annular spread.
Closer, above-mentioned Fresnel Lenses is that plastic optical material or glass optical material are made.
Adopt the beneficial effect of the technical program to be: to the present invention includes the plane of incidence and exit facet, the plane of incidence is provided with the straight line tooth-shape structure in four regions, tooth-shape structure is lineal layout, make lens when obtaining high-level efficiency Uniform Illumination effect, obtain rectangular illumination hot spot, and lens are convenient to processing and manufacturing, good looking appearance.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in embodiment of the present invention technology, to the accompanying drawing of required use in embodiment technical description be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the plane of incidence in an embodiment of the present invention.
Fig. 2 is the structural representation of exit facet in an embodiment of the present invention.
Fig. 3 is the side-looking face structural representation of an embodiment of the present invention.
Numeral and the represented corresponding component title of letter in figure:
1. the plane of incidence 2. exit facet 3. tooth-shape structures.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
As depicted in figs. 1 and 2, a kind of embodiment of the present invention, the present embodiment is the circular Fresnel Lenses that plastic optical material is made, comprise the plane of incidence 1 and exit facet 2, the plane of incidence 1 is provided with straight line tooth-shape structure 3, and tooth-shape structure 3 is lineal layout, straight line tooth-shape structure 3 diagonal angles arrange identical, straight line profile of tooth knot 3 is divided into four regions, and four regions connect into rectangle by filleted corner and bull nose, the profile of tooth of straight line described in the adjacent area direction square crossing vertical distribution between two that distributes.Described exit facet 2 is plane.The present invention regulates optical distribution by 4 dissimilar tooth form structural regions, rectangle or annular Fresnel Lenses.And the present embodiment is annular shape Fresnel Lenses, can obtain rectangular optical illuminating effect, meet the illumination optical requirement of some special lightings, imaging situation.
Embodiment 2, and all the other are identical with described embodiment 1, and difference is, Fresnel Lenses is annular spread, obtain rectangular illumination hot spot.
Adopt the beneficial effect of the technical program to be: to the present invention includes the plane of incidence and exit facet, the plane of incidence is provided with the straight line tooth-shape structure in four regions, tooth-shape structure is lineal layout, make lens when obtaining high-level efficiency Uniform Illumination effect, obtain rectangular illumination hot spot, and lens are convenient to processing and manufacturing, good looking appearance.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the present invention.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (5)
1. a Fresnel Lenses, is characterized in that, comprises the plane of incidence and exit facet, and the described plane of incidence is provided with the straight line tooth-shape structure in four regions, and described tooth-shape structure is lineal layout, and described exit facet is plane.
2. Fresnel Lenses according to claim 1, is characterized in that, described straight line tooth-shape structure diagonal angle arranges identical, described four regions, and the square crossing of the profile of tooth of straight line described in adjacent area direction distributes.
3. Fresnel Lenses according to claim 1 and 2, is characterized in that, the cross section of described groove structure is triangle.
4. Fresnel Lenses according to claim 1, is characterized in that, described Fresnel Lenses is rectangle or annular spread.
5. Fresnel Lenses according to claim 1, is characterized in that, described Fresnel Lenses is that plastic optical material or glass optical material are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310143756.7A CN104122608A (en) | 2013-04-24 | 2013-04-24 | Fresnel Lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310143756.7A CN104122608A (en) | 2013-04-24 | 2013-04-24 | Fresnel Lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104122608A true CN104122608A (en) | 2014-10-29 |
Family
ID=51768092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310143756.7A Pending CN104122608A (en) | 2013-04-24 | 2013-04-24 | Fresnel Lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104122608A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040246596A1 (en) * | 2003-06-03 | 2004-12-09 | Rensselaer Polytechnic Institute | Concentrating type solar collection and daylighting system within glazed building envelopes |
| CN101750644A (en) * | 2008-12-11 | 2010-06-23 | 采钰科技股份有限公司 | Novel method to optimize micro-optic lens in led flashlight application |
| CN102645685A (en) * | 2012-05-18 | 2012-08-22 | 刘永强 | Uniformly-converging Fresnel lens |
| CN202453523U (en) * | 2012-02-21 | 2012-09-26 | 联钢精密科技(苏州)有限公司 | Fresnel lens |
| CN202886631U (en) * | 2012-09-18 | 2013-04-17 | 刘晋浩 | Parallel axis type rectangular Fresnel lens |
| CN203217102U (en) * | 2013-04-24 | 2013-09-25 | 联钢精密科技(苏州)有限公司 | Fresnel lens |
-
2013
- 2013-04-24 CN CN201310143756.7A patent/CN104122608A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040246596A1 (en) * | 2003-06-03 | 2004-12-09 | Rensselaer Polytechnic Institute | Concentrating type solar collection and daylighting system within glazed building envelopes |
| US7190531B2 (en) * | 2003-06-03 | 2007-03-13 | Rensselaer Polytechnic Institute | Concentrating type solar collection and daylighting system within glazed building envelopes |
| CN101750644A (en) * | 2008-12-11 | 2010-06-23 | 采钰科技股份有限公司 | Novel method to optimize micro-optic lens in led flashlight application |
| CN202453523U (en) * | 2012-02-21 | 2012-09-26 | 联钢精密科技(苏州)有限公司 | Fresnel lens |
| CN102645685A (en) * | 2012-05-18 | 2012-08-22 | 刘永强 | Uniformly-converging Fresnel lens |
| CN202886631U (en) * | 2012-09-18 | 2013-04-17 | 刘晋浩 | Parallel axis type rectangular Fresnel lens |
| CN203217102U (en) * | 2013-04-24 | 2013-09-25 | 联钢精密科技(苏州)有限公司 | Fresnel lens |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141029 |