CN202661761U - External control device of manual iris lens - Google Patents
External control device of manual iris lens Download PDFInfo
- Publication number
- CN202661761U CN202661761U CN201220238984.3U CN201220238984U CN202661761U CN 202661761 U CN202661761 U CN 202661761U CN 201220238984 U CN201220238984 U CN 201220238984U CN 202661761 U CN202661761 U CN 202661761U
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- CN
- China
- Prior art keywords
- camera lens
- lens
- stepper motor
- external controller
- control device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model discloses an external control device of a manual iris lens. The manual iris lens comprises a lens body and a diaphragm preselection ring which can rotate relative to the lens body. The external control device comprises a fixing clamp fixedly sleeved on the outside of the lens body, a step motor installed on the fixing clamp, a pinion installed on an output shaft of the step motor, a movable clamp fixedly sleeved on the outside of the diaphragm preselection ring, an outer gear ring which is fixedly arranged on the outer circumference of the movable clamp and is meshed with the pinion, and a cable connector connected with the step motor. The external control device can conveniently convert various manual iris lenses into auto-iris lenses, so the selection choices of the lens for a camera are enlarged, and the problems that the size of an auto-iris lens is too small and a suitable auto iris lens is hard to find are greatly improved. Meanwhile, the external control device has the advantages of good universality and good control precision.
Description
Technical field
The utility model relates to the control of diaphragm of camera or camera lens, particularly relates to a kind of for the manual iris camera lens being carried out the automatically device of control of aperture.
Background technology
General C type interface tight shot all disposes manual iris, needs the user manually to regulate aperture size and focusing, but in the situations such as automatic monitoring, the user need to control automatically by camera the variation of lens aperture.
Generally speaking, for aperture is controlled automatically, the user need to select to buy automatic diaphragm lens, controls the variation of aperture by the auto iris interface of standard.But automatic diaphragm lens has following shortcoming:
1. Lens is less.Owing to will add the aperture automatic adjusting mechanism, the size of camera lens is generally 1/3 cun or 1/2 cun, and in 2/3 cun or larger CCD camera, such camera lens just can't use.
2. kind is rare.Because need other design circuit, automatic diaphragm lens can not be included the tight shot of all specifications, causes the user to be difficult to choose suitable camera lens when choosing.
3. control out of true.The major part of current trend all is the DC automatic diaphragm lens, uses d.c. motor control, can't or be difficult to aperture size is accurately controlled, and major part all can only be controlled aperture and open closed.
Therefore, if the better manual iris camera lens of applicability can be transformed, it can be controlled automatically by camera, automatically change the size of aperture, then can address the above problem well.
The utility model content
The technical problems to be solved in the utility model provides a kind of external controller of manual iris camera lens, can realize the automatic control to manual iris, to overcome the defects of prior art.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: a kind of external controller of manual iris camera lens, described manual iris camera lens comprises the diaphragm preselection ring that camera lens body and can rotate with respect to the camera lens body, described external controller comprises: fixing hoop, fixedly sleeved outside at the camera lens body; Stepper motor is installed on the fixing hoop; Pinion wheel is installed on the output shaft of described stepper motor; Movable dog, fixedly sleeved outside at diaphragm preselection ring; External toothing is fixed on the excircle of movable dog, and is meshed with described pinion wheel; Cable connector is connected with described stepper motor.
Preferably, described fixing hoop is provided with the motor mounting groove, and described stepper motor is fixedly mounted in the motor mounting groove.
Further, the top of described motor mounting groove also is provided with upper cover plate, and upper cover plate removably is connected on the fixing hoop, and described stepper motor is pressed between upper cover plate and the motor mounting groove.
Preferably, described fixing hoop and movable dog are the collar with peristome, and the two ends of peristome are provided with screw hole and are connected by holding screw.
Preferably, described external toothing is one-body molded on the excircle of movable dog.
Preferably, described cable connector is connected by an adaptor with stepper motor.
The utlity model has following beneficial effect:
1. can easily various manual iris camera lenses be converted to the camera lens that can automatically regulate aperture, enlarge the range of choice of camera lens, can greatly improve the situation that automatic diaphragm lens is undersized and be difficult to find the automatic diaphragm lens of appropriate size.
2, versatility is good.Owing to be with clip stepper motor and external toothing to be installed respectively, so only need select the clip of different size to get final product general installation to the camera lens of different model, reach the purpose that lens aperture is regulated.Like this, the commercially available C type interface tight shot of the overwhelming majority can be controlled aperture with the utility model external device.
3. control accurately.The utility model uses step motor, and it is minimum to a step (angle that tooth is corresponding on the external toothing) accurately to control the rotation step number, changes thereby can control accurately, continuously lens aperture size.
4. control is simple.Only need in camera, to increase corresponding control circuit and be connected with cable connector in the utility model, can use the camera internal program accurately to control the size of aperture.
Description of drawings
Fig. 1 is a kind of structural representation of known manual iris camera lens.
Fig. 2 is that a kind of external controller of the utility model is installed in the synoptic diagram on the manual iris camera lens shown in Figure 1.
Fig. 3 is dismantle synoptic diagram behind the upper cover plate of Fig. 2.
Fig. 4 is the partial enlarged drawing at A place among Fig. 3.
Fig. 5 is the STRUCTURE DECOMPOSITION synoptic diagram of a kind of external controller of the utility model.
Among the figure:
1, manual iris camera lens
2, external controller
10, camera lens body
11, diaphragm preselection ring
21, fixing hoop
22, movable dog
23, cable connector
24, stepper motor
25, adaptor
26, upper cover plate
27, screw
28, holding screw
29, holding screw
210, peristome
211, motor mounting groove
212, screw hole
221, external toothing
241, pinion wheel
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail, those skilled in the art can more clearly understand other advantages of the present utility model and effect thus.
Need to prove that the structure that Figure of description illustrates, ratio, size etc. only for cooperating embodiment, more clearly understand design of the present utility model for those skilled in the art, are not to limit protection domain of the present utility model.The adjustment of the modification of any structure, the change of proportionate relationship or size not affecting in the situation that effect of the present utility model and purpose reach, all should still drop within the protection domain of the present utility model.Simultaneously, adopt in this instructions as " on ", the term such as D score, be the relative term that adopts for the ease of being described by reference to the accompanying drawings, do not have absolute connotation.
As shown in Figure 1, general C type interface manual iris camera lens 1 from the outside, comprises camera lens body 10 and a diaphragm preselection ring 11, and camera lens body 10 is integrated with camera lens, and is not rotatable; And diaphragm preselection ring 11 can rotate with respect to camera lens body 10, when rotating diaphragm preselection ring 11 with hand, and the size of adjustable lens aperture.
As shown in Figure 2, external controller 2 of the present utility model can be installed on the above-mentioned manual iris camera lens 1, realizing the automatic control to aperture, thereby the manual iris camera lens is converted to the camera lens that can automatically regulate aperture.
In conjunction with reference to Fig. 3-Fig. 5, the utility model external controller comprises a fixing hoop 21 and a movable dog 22, and fixing hoop 21 can fixedly sleevedly be seen Fig. 1 at camera lens body 10() the outside, form with the camera lens body and to be connected without relatively rotating closely; Movable dog 22 can fixedly sleevedly be seen Fig. 1 at diaphragm preselection ring 11() the outside, form with diaphragm preselection ring and to be connected without relatively rotating closely.Fixing hoop 21 is used for fixed installation stepper motor 24; And movable dog 22 is used for fixed installation external toothing 221, and external toothing 221 is fixed on the excircle of movable dog 22, also can adopt integrated mode to be formed on the excircle of movable dog 22.The output shaft of stepper motor 24 is provided with pinion wheel 241, and pinion wheel 241 is meshed with described external toothing 221, and therefore, when stepper motor 24 rotated, the diaphragm preselection ring that can drive camera lens rotated, with automatic adjusting aperture size.Be connected with cable connector 23 on the stepper motor 24, can be connected with the control circuit of camera inside, realize driving and control to stepper motor 24, thus can be under the control of program, drive diaphragm preselection ring by stepper motor 24 and rotate, automatically regulate aperture size.
In a kind of preferred embodiment of the present utility model, be provided with motor mounting groove 211 at fixing hoop 21, be used for fixed installation stepper motor 24.Also be provided with upper cover plate 26 above motor mounting groove 211, upper cover plate 26 removably is connected on the fixing hoop 21 by screw 27, thereby stepper motor 24 is pressed between upper cover plate 26 and the motor mounting groove 211.
Also be provided with an adaptor 25 in motor mounting groove 211, cable connector 23 is connected by adaptor 25 with stepper motor 24, to make things convenient for the assembling of cable connector 23 and stepper motor 24.
In a kind of preferred embodiment of the present utility model, fixing hoop 21 and movable dog 22 are the collar with peristome 210, and the two ends of peristome 210 are provided with screw hole 212 and are connected by holding screw 28,29 respectively.When fixing hoop 21 is enclosed within camera lens body outside, tighten holding screw 29, can make the fastening combination of excircle of fixing hoop 21 and camera lens body; When movable dog 22 is enclosed within the diaphragm preselection ring outside, tighten holding screw 28, can make the fastening combination of excircle of movable dog 22 and diaphragm preselection ring.
Claims (6)
1. the external controller of a manual iris camera lens, described manual iris camera lens (1) comprise the diaphragm preselection ring (11) that camera lens body (10) and can rotate with respect to the camera lens body, it is characterized in that described external controller (2) comprising:
Fixing hoop (21), fixedly sleeved outside in camera lens body (10);
Stepper motor (24) is installed on the fixing hoop (21);
Pinion wheel (241) is installed on the output shaft of described stepper motor (24);
Movable dog (22), fixedly sleeved outside in diaphragm preselection ring (11);
External toothing (221) is fixed on the excircle of movable dog (22), and is meshed with described pinion wheel (241);
Cable connector (23) is connected with described stepper motor (24).
2. external controller according to claim 1 is characterized in that, described fixing hoop (21) is provided with motor mounting groove (211), and described stepper motor (24) is fixedly mounted in the motor mounting groove (211).
3. external controller according to claim 2, it is characterized in that, the top of described motor mounting groove (211) also is provided with upper cover plate (26), upper cover plate (26) removably is connected on the fixing hoop (21), and described stepper motor (24) is pressed between upper cover plate (26) and the motor mounting groove (211).
4. external controller according to claim 1 is characterized in that, described fixing hoop (21) and movable dog (22) are the collar with peristome, and the two ends of peristome are provided with screw hole and are connected by holding screw (28,29).
5. external controller according to claim 1 is characterized in that, described external toothing (221) is one-body molded on the excircle of movable dog (22).
6. external controller according to claim 1 is characterized in that, described cable connector (23) is connected by an adaptor (25) with stepper motor (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220238984.3U CN202661761U (en) | 2012-05-24 | 2012-05-24 | External control device of manual iris lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220238984.3U CN202661761U (en) | 2012-05-24 | 2012-05-24 | External control device of manual iris lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202661761U true CN202661761U (en) | 2013-01-09 |
Family
ID=47456654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220238984.3U Withdrawn - After Issue CN202661761U (en) | 2012-05-24 | 2012-05-24 | External control device of manual iris lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202661761U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102707543A (en) * | 2012-05-24 | 2012-10-03 | 上海锐势机器视觉科技有限公司 | External connection control device for manual iris lens |
-
2012
- 2012-05-24 CN CN201220238984.3U patent/CN202661761U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102707543A (en) * | 2012-05-24 | 2012-10-03 | 上海锐势机器视觉科技有限公司 | External connection control device for manual iris lens |
| CN102707543B (en) * | 2012-05-24 | 2015-03-18 | 上海锐势机器视觉科技有限公司 | External connection control device for manual iris lens |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130109 Effective date of abandoning: 20150318 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20130109 Effective date of abandoning: 20150318 |
|
| RGAV | Abandon patent right to avoid regrant |