CN205427285U - Fresnel lens support - Google Patents
Fresnel lens support Download PDFInfo
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- CN205427285U CN205427285U CN201620221374.0U CN201620221374U CN205427285U CN 205427285 U CN205427285 U CN 205427285U CN 201620221374 U CN201620221374 U CN 201620221374U CN 205427285 U CN205427285 U CN 205427285U
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- fresnel lenses
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- fresnel lens
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Abstract
The utility model provides a fresnel lens support, include: internal frame and outer frame, internal frame match with outer frame and prescribe a limit to fresnel lens between the two, and fresnel lens is for being the rectangle that the arc is crooked, and the outward flange of internal frame and fresnel lens's outward flange can cup joint with the inboard cooperation of outer frame respectively. This support does not need independent die sinking to make particular form's fresnel lens, need not carry out complicated fluting technology on metal casing yet when having satisfied the special outward appearance demand of security product, and the accuracy of simple to operate and installation is high to the corresponding reduction of cost of product, the corresponding rising of qualification rate of product.
Description
Technical field
This utility model relates to Fresnel Lenses technical field, is specifically related to a kind of Fresnel Lenses support.
Background technology
Infrared sensor is widely used in household safety-protection field, is used for detecting/follow the tracks of human motion, it is achieved abnormal alarm function.Generally, infrared sensor needs and Fresnel Lenses is used in combination.Fresnel Lenses effect has three: one to be focussing force, heat will release infrared signal refraction (reflection) on infrared sensor；Second effect is will to be divided into several area pellucidas and dark space in search coverage, makes the motive objects physical ability of entrance search coverage produce change heat on PIR with the form of variations in temperature and releases infrared signal；3rd effect is that lens material has filter function, can stop the visible ray beyond human infrared radiation and infrared light, increases capacity of resisting disturbance.
The general shape of Fresnel Lenses has circle, square, rectangle etc., and traditional security product does not typically have the highest requirement to outward appearance, therefore can directly use the Fresnel Lenses of common shape.Further, the shell of tradition security protection typically uses plastic material, is therefore easy to be pasted onto on shell Fresnel Lenses.But, if the outward appearance of security product is had higher requirements, it is desirable to the Fresnel Lenses seen from product appearance is the shape that comparison is graceful, then be accomplished by particularly customized, and the lens producing special shape need the die sinking of customization, add cost and design risk.Additionally, the installation of the Fresnel Lenses of the non-universal shape of customization is again a difficult problem, when the material especially used when the shell of security product is the metal materials such as aluminium alloy, whether by mounting method or card channel process, all it is difficult to be installed by lens quickly and accurately put in place, and the compactness that lens are connected with shell is also difficult to ensure that, it is also possible to cause the damage of lens itself.
Utility model content
Therefore, the technical problems to be solved in the utility model is the outward appearance to security product when having higher requirements, the problem that the making of the Fresnel Lenses of special shape and installation bring.
To this end, this utility model embodiment provides following technical scheme:
A kind of Fresnel Lenses support, including: inner frame and outside framework, inner frame matches with outside framework and is limited between the two by Fresnel Lenses, Fresnel Lenses is the rectangle being convexly curved, and the outward flange of inner frame and the outward flange of Fresnel Lenses are able to the fit inside socket with outside framework.
Preferably, inside the arc-shaped side of outside framework, it is provided with locating convex block, matches with the detent on Fresnel Lenses arc-shaped side.
Preferably, the buckle structure of the clamping that cooperates on the straight flange of inner frame and it is respectively equipped with on the straight flange of outside framework.
Preferably, at least provided with two buckle structures on each straight flange of inner frame, corresponding at least provided with two buckle structures on each straight flange of outside framework.
Preferably, outside framework be wherein respectively equipped with attachment structure on two jiaos.
Preferably, attachment structure is provided with fixing hole, is provided with helicitic texture in fixing hole.
Preferably, at least one attachment structure is provided with the hole, location matched with locating dowel.
Technical solutions of the utility model, have the advantage that
The Fresnel Lenses support that this utility model embodiment provides, by inner frame and outside framework, Fresnel Lenses is fixed, and both shapes fully meet (including radian) installation requirement of Fresnel Lenses, then being fixed in security product housing by the support securing Fresnel Lenses, Fresnel Lenses exposes from the opening of security product shell (default for installing Fresnel Lenses) and closely cooperates with the edge of opening.This support is while meeting security product particular appearance demand, need not independent die sinking and make the Fresnel Lenses of special shape, also without the grooving processes carrying out complexity on metal shell, degree of accuracy easy for installation and that install is high, thus the cost of product reduces accordingly, the qualification rate of product raises accordingly.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model detailed description of the invention or technical scheme of the prior art, the accompanying drawing used required in detailed description of the invention or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is embodiments more of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The Facad structure schematic diagram of a kind of security product that the Fresnel Lenses support that Fig. 1 is this utility model embodiment is suitable for；
Fig. 2 is the structural representation of the Fresnel Lenses support of this utility model embodiment；
Fig. 3 is the assembling schematic diagram of the Fresnel Lenses support of this utility model embodiment；
Fig. 4 is the front scheme of installation of the interior Fresnel Lenses installed of Fresnel Lenses support of this utility model embodiment；
Fig. 5 is the vertical view scheme of installation of the Fresnel Lenses in Fig. 3.
Reference: 1-inner frame；11-buckle structure；2-Fresnel Lenses；21-detent；3-outside framework；31-locating convex block；32-attachment structure；33-fixing hole；34-positions hole.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described, it is clear that described embodiment is a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
In description of the present utility model, it should be noted that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, "left", "right", " vertically ", " level ", " interior ", " outward " they be based on orientation shown in the drawings or position relationship; be for only for ease of description this utility model and simplifying and describe; rather than instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " first ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or hint relative importance.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " is installed ", " being connected ", " connection " should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or be integrally connected；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, it is also possible to be the connection of two element internals, can be wireless connections, it is also possible to be wired connection.For the ordinary skill in the art, above-mentioned term concrete meaning in this utility model can be understood with concrete condition.
As long as just can be combined with each other additionally, technical characteristic involved in this utility model difference embodiment disclosed below does not constitutes conflict each other.
Embodiment
As shown in Figure 2, originally execute example and a kind of Fresnel Lenses support is provided, including: inner frame 1 and outside framework 3, inner frame 1 matches with outside framework 3 and is limited between the two by Fresnel Lenses 2, Fresnel Lenses 2 is the rectangle being convexly curved, and the outward flange of inner frame 1 and the outward flange of Fresnel Lenses 2 are able to the fit inside socket with outside framework 3.
The structure of Fresnel Lenses support that the present embodiment provides and size, be the size according to Fresnel Lenses 2 and installation requirement carrys out respective design.Such as, as it is shown in figure 5, the installation requirement of Fresnel Lenses to be installed is to bend to 120 degree and distance infrared sensor 16mm；Further, as shown in Figure 4, the Bu center, focal position of Fresnel Lenses to be installed, and infrared sensor 003 is necessarily placed at the focal point of Fresnel Lenses to be installed.So it is accomplished by when designing lens carrier ensureing that the Fresnel Lenses 2 of plane can be bent to the arc of 120 degree and fix by support, in addition it is also necessary to ensure that the focus of Fresnel Lenses 2 overlaps with the position of infrared sensor 003 after assembling successfully.
Utilizing this Fresnel Lenses support can meet the appearance requirement that security product is higher, security product shell the most as shown in Figure 1, its split shed 001 is for installing Fresnel Lenses 2, it can be seen that it is not the rectangle of rule.Further, Fresnel Lenses 2 is usually what requirement was angled, i.e. the Fresnel Lenses 2 of installation is not plane.If using with the consistent Fresnel Lenses 2 of the shape of opening 001, not only needing particularly customized, installing the most especially difficult.And the support utilizing the present embodiment to provide, it is possible not only to meet the particular appearance requirement of security product, and solves production and the installation question of lens.Specifically, Fresnel Lenses 2 is fixed by this support by inner frame 1 and outside framework 3, and both shapes fully meet (including radian) installation requirement of Fresnel Lenses 2, then being fixed in security product housing by the support securing Fresnel Lenses 2, Fresnel Lenses 2 exposes at opening 001 and closely cooperates with the edge of opening 001.
To sum up, the Fresnel Lenses support that the present embodiment provides is while meeting security product particular appearance demand, need not independent die sinking and make the Fresnel Lenses of special shape, also without the grooving processes carrying out complexity on metal shell, degree of accuracy easy for installation and that install is high, thus the cost of product reduces accordingly, the qualification rate of product raises accordingly.
As preferred embodiment, inside the arc-shaped side of outside framework 3, it is provided with locating convex block 31, matches with the detent 21 on Fresnel Lenses 2 arc-shaped side.General Fresnel Lenses has oneself distinctive installation requirement, and its focal position is the most placed in the middle, for rectangular Fresnel Lenses, is easy to anti-loaded without special telltale mark and is difficult to find.The locating convex block 31 arranged on support in the present embodiment matches with the detent 21 on Fresnel Lenses 2, anti-loaded situation can be stopped completely occur, and the tightness degree that Fresnel Lenses 2 is connected with support can be promoted further, prevent it from rocking, it is ensured that installation accuracy.
As specific embodiment, on the straight flange of inner frame 1 and it is respectively equipped with the buckle structure 11 of the clamping that cooperates on the straight flange of outside framework 3.Utilizing buckle structure 11 to realize being relatively fixed of inner frame 1 and outside framework 3, not only it is easy to process, and the time needed for assembling is also few.In order to ensure the fastness that inner frame 1 is connected with outside framework 3, each straight flange of inner frame 1 is preferably provided with two buckle structures 11, each straight flange of outside framework 3 is preferably provided with two buckle structures 11 accordingly.The four pairs of buckle structures 11 have been able to the bonding strength ensureing inner frame 1 with outside framework 3 substantially, and are unlikely to quantity and too much cause the course of processing complicated and waste material, and the time needed for assembling is also few.But, the actual buckle structure 11 implementing can set other numbers during this technical scheme as required.
As specific embodiment, outside framework 3 be wherein respectively equipped with attachment structure 32 on two jiaos.Fresnel Lenses 2 is intended to match the pyroelectric infrared of incompatible detection human body with infrared sensor 003, therefore Fresnel Lenses 2 by this support fixing after, in addition it is also necessary to this is mounted with that the support of Fresnel Lenses 2 is fixed with the miscellaneous part in security product.Therefore, this support needs to be provided for fixing the attachment structure 32 being connected with the miscellaneous part in security product.
Specifically, attachment structure 32 is provided with fixing hole 33, is provided with helicitic texture in fixing hole 33.Assembling for the ease of whole security product, the support Design that this utility model provides becomes to be fixed with the miscellaneous part in security product by bolt or screw, bolt or screw are fixed and are not only convenient for operation, save the set-up time, require the lowest to the technology of assembler, and the processing of each connector is also easy, thus it is greatly saved production cost.
As preferred embodiment, at least one attachment structure 32 of this support is provided with the hole, location 34 matched with locating dowel.When this support is assembled on security product, in order to prevent assembling dislocation, and reduces the time needed for assembling, on this support, be therefore provided with hole 34, location, match with the locating dowel on the miscellaneous part of security product, thus realize assembling quickly and accurately.
The Fresnel Lenses support utilizing the present embodiment to provide is as follows to the process completing the installation of Fresnel Lenses 2:
First, rectangular Fresnel Lenses 2 is put into outside framework 3, and utilize the detent 21 on Fresnel Lenses 2 and the locating convex block 31 on outside framework 3 to complete the restriction of installation site and direction, to guarantee that the position of radian that Fresnel Lenses 2 formed and focus meets installation requirement.
Then, inner frame 1 is placed on Fresnel Lenses 2, in outside framework 3, and by the clamping of four pairs of buckle structures 11, so that Fresnel Lenses 2 is clamped in outside framework 3, prevents its displacement or come off.Now support itself has assembled, as shown in Figure 3.
Finally, hole, location 34 on the support being assembled with Fresnel Lenses 2 is directed at the locating dowel on main support plate (for support bracket fastened parts in security product), after being directed at the fixing hole 33 of correspondence, with screw or bolt, this support is fixed on main support plate simultaneously.Thus complete the assembling process of Fresnel Lenses 2.
Obviously, above-described embodiment is only for clearly demonstrating example, and not restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also cannot all of embodiment be given exhaustive.And the obvious change thus extended out or variation still in the protection domain of the invention among.
Claims (7)
1. a Fresnel Lenses support, it is characterized in that, including: inner frame (1) and outside framework (3), described inner frame (1) matches with described outside framework (3) and is limited between the two by Fresnel Lenses (2), described Fresnel Lenses (2) is the rectangle being convexly curved, and the outward flange of described inner frame (1) and the outward flange of described Fresnel Lenses (2) are able to the fit inside socket with described outside framework (3).
2. Fresnel Lenses support as claimed in claim 1, it is characterized in that, it is provided with locating convex block (31) inside the arc-shaped side of described outside framework (3), matches with the detent (21) on described Fresnel Lenses (2) arc-shaped side.
3. Fresnel Lenses support as claimed in claim 1, it is characterised in that on the straight flange of described inner frame (1) and be respectively equipped with the buckle structure (11) of the clamping that cooperates on the straight flange of described outside framework (3).
4. Fresnel Lenses support as claimed in claim 3, it is characterized in that, at least provided with two described buckle structures (11) on each straight flange of described inner frame (1), corresponding at least provided with two described buckle structures (11) on each straight flange of described outside framework (3).
5. the Fresnel Lenses support as according to any one of claim 1-4, it is characterised in that described outside framework (3) be wherein respectively equipped with attachment structure (32) on two jiaos.
6. Fresnel Lenses support as claimed in claim 5, it is characterised in that described attachment structure (32) is provided with fixing hole (33), and described fixing hole is provided with helicitic texture in (33).
7. Fresnel Lenses support as claimed in claim 5, it is characterised in that at least one described attachment structure (32) is provided with the hole, location (34) matched with locating dowel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620221374.0U CN205427285U (en) | 2016-03-22 | 2016-03-22 | Fresnel lens support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620221374.0U CN205427285U (en) | 2016-03-22 | 2016-03-22 | Fresnel lens support |
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| Publication Number | Publication Date |
|---|---|
| CN205427285U true CN205427285U (en) | 2016-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620221374.0U Active CN205427285U (en) | 2016-03-22 | 2016-03-22 | Fresnel lens support |
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| CN (1) | CN205427285U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115453671A (en) * | 2022-09-30 | 2022-12-09 | 杭州海康威视数字技术股份有限公司 | Fresnel lens and infrared detection equipment |
-
2016
- 2016-03-22 CN CN201620221374.0U patent/CN205427285U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115453671A (en) * | 2022-09-30 | 2022-12-09 | 杭州海康威视数字技术股份有限公司 | Fresnel lens and infrared detection equipment |
| CN115453671B (en) * | 2022-09-30 | 2023-12-05 | 杭州海康威视数字技术股份有限公司 | Fresnel lens and infrared detection equipment |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |