CN203688954U - Zooming mechanism for security and protection illumination - Google Patents
Zooming mechanism for security and protection illumination Download PDFInfo
- Publication number
- CN203688954U CN203688954U CN201320746820.6U CN201320746820U CN203688954U CN 203688954 U CN203688954 U CN 203688954U CN 201320746820 U CN201320746820 U CN 201320746820U CN 203688954 U CN203688954 U CN 203688954U
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- shell
- lens
- optical axis
- security protection
- zoom mechanism
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Abstract
The utility model discloses a zooming mechanism for security and protection illumination, and belongs to a matching device of a security and protection camera; the zooming mechanism comprises a housing; an end portion of the housing is also provided with a front cover and a rear cover; a second lens clamp assembly is fixed on an inner wall of a rear end of the housing; a front end of the housing is provided with a light outlet; at least a first optical axis and a second optical axis are arranged between an inner wall of two ends of the housing; the first lens clamp assembly is respectively sleeved on the first optical axis and the second optical axis; the first lens clamp assembly is sleeved on one optical axis through a slide piece, the slide piece is dynamically connected with an output end of a drive motor, and the drive motor drives the first lens clamp assembly to move on the two optical axis, so the distance between the two lens assemblies in the zooming mechanism can be changed, thereby realizing zooming; in a zooming process, a light source emitting angle can change to fully cooperate with a shooting range of the camera, thereby fully using the light emitted by the light source; gradient difference of light brightness is small, thereby improving lighting effect.
Description
Technical field
The utility model relates to a kind of corollary apparatus of security monitoring video camera, and in particular, the utility model relates generally to a kind of zoom mechanism for security protection illumination.
Background technology
Along with the development of security and guard technology, the video camera night vision light compensating lamp of monitoring use requires more and more higher.Traditional suitching type night vision zoom mode is more and more not suitable with present requirement.The switching mode that traditional night vision light compensating lamp uses only has two kinds in the mode of light filling, and one is low beam light filling; One is far lamp light filling; The very large problem of existence in light filling effect: the one, the luminance difference of light is too large, and the shorter luminance difference of low beam light filling distance is not too obvious; But it is inadequate that far lamp light filling has obvious illuminance because light filling distance is long when closely to remote distance camera, significantly brightness step difference.The 2nd, the efficiency of light energy utilization is not high.In the time of far lamp light filling, in the time that low-angle is made a video recording outside the scope of some light at camera photography, this part light has just been wasted completely.The 3rd, what traditional light compensating lamp adopted is with the form light filling of lamp group on light filling face, exist these gradients of light illumination gradient be not soft be excessively a kind of as hard as degree mode.And existing zoom light compensating lamp structure is all owing to can not being applicable to all kinds of installation sites, and the slipper of Zoom lamp inner structure is because the traditional approach that is related to of position adopts gear zoom to move forward and backward, be that this class formation has certain limitation for the control of the increase of lens diameter, thereby just limited the angle that light is dispersed; Therefore be necessary, on the architecture basics of existing security monitoring video camera illuminating product, it to be done to further improvement.
Utility model content
One of the purpose of this utility model is for above-mentioned deficiency, a kind of zoom mechanism for security protection illumination is provided, not high to expect to solve in prior art the efficiency of light energy utilization, and the brightness step in zoom time differs greatly, make the technical matterss such as the illuminating effect of security monitoring video camera is affected.
For solving above-mentioned technical matters, the utility model by the following technical solutions:
A kind of zoom mechanism for security protection illumination provided by the utility model, comprise shell, the end of described shell is also provided with protecgulum and bonnet, the inside of described shell is also provided with for the first lens clamp assembly of fixed lens and the second lens holder assembly, described the second lens holder assembly is fixed on outer casing back inwall, on described shell front end, be also provided with light outlet, and primary optic axis and the second optical axis are also at least installed between the inwall of shell two ends, described first lens clamp assembly is set on primary optic axis and the second optical axis, and first lens clamp assembly is mounted in it on an optical axis by slide block set, described slide block is also connected with the output terminal power of drive motor, for driving first lens clamp assembly to move on described primary optic axis and the second optical axis by drive motor by slide block.
As preferably, further technical scheme is: between described bonnet and outer casing back outside, lighting source is also installed, is also provided with the through hole of cooperation with it, and flat mirror is also installed on the light outlet of shell front end on described outer casing back.
Further technical scheme is: the rectangular body of inner chamber of described shell, described primary optic axis and the second optical axis be the Shang Cheng diagonal angle, rectangle end in chamber installation in the enclosure respectively.
Further technical scheme is: described primary optic axis and the second optical axis are all arranged on the inner wall of end of shell by sleeve.
Further technical scheme is: described bonnet is metal material, described lighting source and bonnet close contact.
Further technical scheme is: described bonnet is provided with multiple bar holes, is also provided with multiple mounting holes on the side of described shell.
Further technical scheme is: described drive motor is minitype stepper motor, described minitype stepper motor Access Control circuit board, for sending current signal by control circuit board to minitype stepper motor, minitype stepper motor moves and turns to according to described current signal.
Further technical scheme is: described bonnet, protecgulum, flat mirror all seal and be arranged on shell, is also provided with the through hole matching with shell front end light outlet on described protecgulum.
Further technical scheme is: in described first lens clamp assembly, first lens is installed; Described the second lens holder assembly is provided with two the second lens, and described the second lens holder assembly is split-type structural.
Further technical scheme is: described first lens, the through hole of the second lens, outer casing back and the light outlet of front end are circle, and four axis overlaps mutually.
Compared with prior art, one of the beneficial effects of the utility model are: drive first lens clamp assembly to move on two optical axises by drive motor, distance between two lens subassemblies in zoom mechanism is changed, thereby realize zoom, and in the process of zoom, light source radiating angle is changed and can coordinate the scope of camera photography completely, thereby make full use of the light that light source is launched; And make the gradient disparities of luminance brightness less by single lighting source, effectively promote the illuminating effect that security monitoring video camera is found a view night, simultaneously a kind of zoom mechanism for security protection illumination provided by the utility model is simple in structure, preferably adopt stepper motor can carry out the movement of small distance, thereby the unit that light source emission angle is changed is also less, can adapt to and the demand of all kinds of security monitoring video camera low-angle zooms, range of application is wide.
Accompanying drawing explanation
Fig. 1 is the structural representation for an embodiment of the utility model is described;
Fig. 2 is the inner structure schematic diagram for another embodiment housing of the utility model is described;
Fig. 3 is the use state reference map for another embodiment of the utility model is described;
In figure, 1 is that shell, 2 is that protecgulum, 3 is that bonnet, 4 is that first lens clamp assembly, 5 is that the second lens holder assembly, 6 is that light outlet, 7 is that primary optic axis, 8 is that the second optical axis, 9 is that slide block, 10 is that drive motor, 11 is that bar hole, 12 is that first lens, 13 is that the second lens, 14 are that flat mirror, 15 is that sleeve, 16 is mounting hole.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further elaborated.
Shown in figure 1, an embodiment of the present utility model is a kind of zoom mechanism for security protection illumination, wherein should comprise shell 1, and protecgulum 2 and bonnet 3 are set in the end of shell 1; What is more important, first lens clamp assembly 4 and the second lens holder assembly 5 for fixed lens are also installed in the inside of above-mentioned shell 1, and the second lens holder assembly 5 is fixed on shell 1 rear end inwall, and on shell 1 front end, light outlet 6 is set, and primary optic axis 7 and the second optical axis 8 are also at least installed between shell 1 two ends inwall, first lens clamp assembly 4 is set on primary optic axis 7 and the second optical axis 8, first lens clamp assembly 4 can be moved along two optical axises; In addition, first lens clamp assembly 4 is specifically sleeved on wherein on an optical axis by slide block 9, and slide block 9 is connected with the output terminal power of drive motor 10, for driving first lens clamp assembly 4 to move on described primary optic axis 7 and the second optical axis 8 by drive motor 10 by slide block 9.It should be noted that, aforesaid optical axis also can be set to many, and its effect is identical with the second optical axis 8 with aforesaid primary optic axis 7, specifically can determine according to the volume of first lens clamp assembly 4 and shell 2 inner chamber environment.
Further, above-mentioned Zoom structure in use, also need be installed lighting source, and for to make the gradient of bright and dark light softer, adopt light source single or single group to throw light in each zoom mechanism between bonnet 3 and shell 1 outside, rear end; On shell 1 rear end, set up the through hole matching with this lighting source, and for guaranteeing the sealing of shell 1 inside, flat mirror 14 also need be installed on the light outlet 6 of shell 1 front end simultaneously.
In above-mentioned first lens clamp assembly 4, first lens 12 is installed; Described the second lens holder assembly 5 is provided with two the second lens 13, and the second lens holder assembly 5 is preferably set to split-type structural.
In the present embodiment, drive first lens clamp assembly 4 to move on two optical axises by drive motor 10, distance between two lens subassemblies in zoom mechanism is changed, thereby realize zoom, and in the process of zoom, light source radiating angle is changed and can coordinate the scope of camera photography completely, thereby make full use of the light that light source is launched; And make the gradient disparities of luminance brightness less by single lighting source, effectively promoted the illuminating effect that security monitoring video camera is found a view night.
For being maintained in a suitable temperature range in zoom mechanism, lighting source works, thereby also need to guarantee the thermal diffusivity in zoom mechanism, the concrete technological means that inventor adopts is for adopting metal material to be processed into bonnet 3, and make lighting source and bonnet 3 close contacts, and the expansion lighting source of trying one's best and the contact area of bonnet 3, to realize heat conduction.More preferably, the concrete material of bonnet 3 can plate layer of copper at the outside surface of aluminium base, control cost with total quality in, increase the thermal conductivity of bonnet 3.
For guaranteeing that deviation does not occur the light that lighting source sends, improve the degree of accuracy of zoom mechanism, above-mentioned first lens 12, the second lens 13, the through hole of shell 1 rear end and the light outlet 6 of front end are all set to circle by preferred technical scheme, and aforementioned four axis is overlapped mutually.
Shown in figure 2, principle described in above embodiment is actual in control the diameter of lens in zoom mechanism by the distance between primary optic axis 7 and the second optical axis 8, a thereby embodiment who is more preferably for technical solution problem at the utility model, for expanding as much as possible the distance between optical axis certain shell sizes size in the situation that, preferably the inner chamber of above-mentioned shell 1 is set to cuboid, again above-mentioned primary optic axis 7 and the second optical axis 8 are installed at the Shang Cheng diagonal angle, rectangle end of shell 1 inner chamber respectively, be arranged on the position that rectangle end air line distance is the longest by both.
Another embodiment being more preferably for technical solution problem at the utility model, for convenience of the zoom angle of zoom mechanism is controlled, and adapt to the demand of security monitoring video camera low-angle zoom, preferably adopt minitype stepper motor as above-mentioned drive motor 10, and by minitype stepper motor Access Control circuit board, for sending current signal by control circuit board to minitype stepper motor, minitype stepper motor moves and turns to according to described current signal.
Inventor also finds in the process of test simultaneously, be screwed primary optic axis 7 and the second optical axis 8 as adopted, easily coping screw error locked and that manufacture in the rigging error that produces and technique, cause the verticality generation deviation of optical axis axis and shell 1 front end and rear end inwall, thereby make slide block that stuck phenomenon occur in sliding process, for overcoming aforementioned drawback, inventor is all arranged on primary optic axis 7 and the second optical axis 8 on the inner wall of end of shell 1 by the sleeve 15 being preset on shell 1 inwall, the degree of accuracy of installing to promote optical axis.
Shown in figure 3, further, install and fix for convenience of bonnet, preferably set up again at an upper portion thereof multiple bar holes 11, on the side of shell 1, set up multiple mounting holes 16; For the surface contamination dust of avoiding lens affects transmittance, preferably its sealing is arranged on to the inside of shell 1, bonnet 3, protecgulum 2, flat mirror all seal and are arranged on shell 1; On protecgulum 2, also need to set up the through hole matching with shell 1 front end light outlet 6 simultaneously.
Except above-mentioned, also it should be noted that " embodiment ", " another embodiment ", " embodiment " etc. that spoken of in this manual, refer in conjunction with specific features, structure or the feature of this embodiment description and be included at least one embodiment of the application's generality description.In instructions, multiple local appearance statement of the same race is not necessarily to refer to same embodiment.Furthermore, while describing a specific features, structure or feature in conjunction with arbitrary embodiment, what advocate is to realize this feature, structure or feature in conjunction with other embodiment also to drop in scope of the present utility model.
Although the utility model is described with reference to multiple explanatory embodiment of the present utility model here, but, should be appreciated that, those skilled in the art can design a lot of other modification and embodiments, and these are revised and within embodiment will drop on the disclosed principle scope and spirit of the application.More particularly, in the scope of, accompanying drawing open in the application and claim, can carry out multiple modification and improvement to the building block of subject combination layout and/or layout.Except modification that building block and/or layout are carried out with improving, to those skilled in the art, other purposes will be also obvious.
Claims (10)
1. the zoom mechanism for security protection illumination, comprise shell (1), the end of described shell (1) is provided with protecgulum (2) and bonnet (3), it is characterized in that: the inside of described shell (1) is also provided with the first lens clamp assembly (4) and the second lens holder assembly (5) for fixed lens, described the second lens holder assembly (5) is fixed on the inwall of shell (1) rear end, on described shell (1) front end, be also provided with light outlet (6), and primary optic axis (7) and the second optical axis (8) are also at least installed between the inwall of shell (1) two ends, described first lens clamp assembly (4) is set on primary optic axis (7) and the second optical axis (8), and first lens clamp assembly (4) is sleeved on wherein on an optical axis by slide block (9), described slide block (9) is also connected with the output terminal power of drive motor (10), for driving first lens clamp assembly (4) upper mobile at described primary optic axis (7) and the second optical axis (8) by drive motor (10) by slide block (9).
2. the zoom mechanism for security protection illumination according to claim 1, it is characterized in that: between described bonnet (3) and outside, shell (1) rear end, lighting source is also installed, on described shell (1) rear end, be also provided with the through hole coordinating with it, and on the light outlet (6) of shell (1) front end, flat mirror (14) be also installed.
3. the zoom mechanism for security protection illumination according to claim 1 and 2, it is characterized in that: the rectangular body of inner chamber of described shell (1), described primary optic axis (7) is installed at the Shang Cheng diagonal angle, rectangle end of shell (1) inner chamber respectively with the second optical axis (8).
4. the zoom mechanism for security protection illumination according to claim 3, is characterized in that: described primary optic axis (7) is all arranged on the inner wall of end of shell (1) by sleeve with the second optical axis (8).
5. the zoom mechanism for security protection illumination according to claim 2, is characterized in that: described bonnet (3) is metal material, described lighting source and bonnet (3) close contact.
6. according to claim 1 or 5 for the zoom mechanism of security protection illumination, it is characterized in that: described bonnet (3) is provided with multiple bar holes (11), on the side of described shell (1), be also provided with multiple mounting holes (16).
7. the zoom mechanism for security protection illumination according to claim 1, it is characterized in that: described drive motor (10) is minitype stepper motor, described minitype stepper motor Access Control circuit board, for sending current signal by control circuit board to minitype stepper motor, minitype stepper motor moves and turns to according to described current signal.
8. the zoom mechanism for security protection illumination according to claim 2, it is characterized in that: described bonnet (3), protecgulum (2), flat mirror (14) all seal and be arranged on shell (1) above, are also provided with the through hole matching with shell (1) front end light outlet (6) on described protecgulum (2).
9. the zoom mechanism for security protection illumination according to claim 1, is characterized in that: first lens (12) is installed in described first lens clamp assembly (4); Described the second lens holder assembly (5) is provided with two the second lens (13), and described the second lens holder assembly (5) is split-type structural.
10. the zoom mechanism for security protection illumination according to claim 9, it is characterized in that: described first lens (12), the through hole of the second lens (13), shell (1) rear end and the light outlet (6) of front end are circle, and four axis overlaps mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320746820.6U CN203688954U (en) | 2013-11-22 | 2013-11-22 | Zooming mechanism for security and protection illumination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320746820.6U CN203688954U (en) | 2013-11-22 | 2013-11-22 | Zooming mechanism for security and protection illumination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203688954U true CN203688954U (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320746820.6U Expired - Fee Related CN203688954U (en) | 2013-11-22 | 2013-11-22 | Zooming mechanism for security and protection illumination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203688954U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104501964A (en) * | 2014-12-30 | 2015-04-08 | 浙江兆晟科技有限公司 | High-precision and impact-resistant electric infrared thermal imaging device |
| CN117192739A (en) * | 2023-11-08 | 2023-12-08 | 深圳爱图仕创新科技股份有限公司 | Variable focus lens and lighting device |
-
2013
- 2013-11-22 CN CN201320746820.6U patent/CN203688954U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104501964A (en) * | 2014-12-30 | 2015-04-08 | 浙江兆晟科技有限公司 | High-precision and impact-resistant electric infrared thermal imaging device |
| CN117192739A (en) * | 2023-11-08 | 2023-12-08 | 深圳爱图仕创新科技股份有限公司 | Variable focus lens and lighting device |
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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: 20140702 Termination date: 20161122 |
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| CF01 | Termination of patent right due to non-payment of annual fee |