CN102707543B - External connection control device for manual iris lens - Google Patents
External connection control device for manual iris lens Download PDFInfo
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- CN102707543B CN102707543B CN201210165442.2A CN201210165442A CN102707543B CN 102707543 B CN102707543 B CN 102707543B CN 201210165442 A CN201210165442 A CN 201210165442A CN 102707543 B CN102707543 B CN 102707543B
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- stepper motor
- camera lens
- iris
- external controller
- control device
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Abstract
The invention discloses an external connection control device for a manual iris lens. The manual iris lens comprises a lens body and an iris regulating ring which can be rotated relative to the lens body. The external connection control device comprises a fixed clamp hoop, a stepper motor, a pinion, a movable clamp hoop, an outer gear ring and a cable joint, wherein the fixed clamp hoop is fixedly sleeved outside the lens body; the stepper motor is fixed on the clamp hoop; the pinion is arranged on an output shaft of the stepper motor; the movable clamp hoop is fixedly sleeved outside the iris regulating ring; the outer gear ring is fixed on the circumference of the movable clamp hoop and engaged with the pinion; and the cable joint is connected with the stepper motor. The external connection control device can be used for conveniently converting various manual iris lenses into lenses capable of automatically regulating the irises, so that the selection range of camera lenses is enlarged, and the conditions that the sizes of automatic iris lenses are too small and automatic iris lenses with proper specifications are difficult to find are greatly improved; and meanwhile, the external connection control device has the advantages of good generality and precise control.
Description
Technical field
The present invention relates to the control of diaphragm of camera or camera lens, particularly relate to a kind of for carrying out the device that aperture controls automatically to manual iris camera lens.
Background technology
General C type interface tight shot all configures manual iris, need user manually to regulate aperture size and focusing, but in the situations such as automatic monitoring, user needs the change automatically being controlled lens aperture by camera.
Generally speaking, in order to automatically control aperture, user needs to select to buy automatic diaphragm lens, is controlled the change of aperture by the auto iris interface of standard.But automatic diaphragm lens has following shortcoming:
1. Lens is less.Owing to will add 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 cannot employ.
2. kind is rare.Because need other design circuit, automatic diaphragm lens can not include the tight shot of all specifications, causes user to be difficult to when choosing choose suitable camera lens.
3. control out of true.The major part of current trend is all DC automatic diaphragm lens, uses d.c. motor to control, and cannot or be difficult to accurately control aperture size, and major part all can only control aperture and open closed.
Therefore, if better for applicability manual iris camera lens can be transformed, make it automatically can be controlled by camera, automatically change the size of aperture, then can solve the problem well.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of external controller of manual iris camera lens, can realize the automatic control to manual iris, to overcome the above-mentioned defect of prior art.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme: a kind of external controller of manual iris camera lens, described manual iris camera lens comprises camera lens body and a diaphragm preselection ring that can rotate relative to camera lens body, described external controller comprises: fixing hoop, the fixedly sleeved outside at camera lens body; Stepper motor, is arranged on fixing hoop; Pinion wheel, is arranged on the output shaft of described stepper motor; Movable dog, the 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 motor mounting groove, and described stepper motor is fixedly mounted in motor mounting groove.
Further, the top of described motor mounting groove is also provided with upper cover plate, and upper cover plate is removably connected on fixing hoop, and described stepper motor is pressed between upper cover plate and 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 present invention has following beneficial effect:
1. easily various manual iris camera lens can be converted to the camera lens that automatically can regulate aperture, expand the range of choice of camera lens, greatly can improve automatic diaphragm lens undersized and be difficult to find the situation of automatic diaphragm lens of appropriate size.
2, versatility is good.Owing to being use clip to install stepper motor and external toothing respectively, therefore only need to select the clip of different size can general installation to the camera lens of different model, reach the object that lens aperture regulates.Like this, the commercially available C type interface tight shot of the overwhelming majority can use external device of the present invention to control aperture.
3. control accurately.The present invention uses step motor, accurately can control rotation step number minimum to a step (angle that on external toothing, a tooth is corresponding), thus can control lens aperture size change accurately, continuously.
4. control simple.Only need increase corresponding control circuit in camera to be connected with the cable connector in the present invention, camera internal program can be used accurately to control the size of aperture.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of known manual iris camera lens.
Fig. 2 is the schematic diagram that a kind of external controller of the present invention is arranged on the camera lens of manual iris shown in Fig. 1.
Fig. 3 is that Fig. 2 dismantles the schematic diagram after upper cover plate.
Fig. 4 is the partial enlarged drawing at A place in Fig. 3.
Fig. 5 is the STRUCTURE DECOMPOSITION schematic diagram of a kind of external controller of the present invention.
In 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
Be described in further detail the present invention below in conjunction with the drawings and specific embodiments, those skilled in the art can more clearly understand other advantages of the present invention and effect thus.
It should be noted that, the structure that Figure of description illustrates, ratio, size etc., be only cooperation embodiment, more clearly understand design of the present invention for those skilled in the art, and be not used to limit the scope of the invention.The adjustment of the modification of any structure, the change of proportionate relationship or size, when not affecting effect of the present invention and object reaches, all should still drop within protection scope of the present invention.Meanwhile, adopt in this instructions as " on ", the term such as D score, being the relative terms adopted for the ease of being described by reference to the accompanying drawings, not there is absolute sense.
As shown in Figure 1, general C type interface manual iris camera lens 1, externally, comprises camera lens body 10 and a diaphragm preselection ring 11, and camera lens body 10 and camera lens are integrated, not rotatably; And diaphragm preselection ring 11 can rotate relative to camera lens body 10, when rotating diaphragm preselection ring 11 with hand, the size of adjustable lens aperture.
As shown in Figure 2, external controller 2 of the present invention can be arranged on above-mentioned manual iris camera lens 1, to realize the automatic control to aperture, thus manual iris camera lens is converted to the camera lens that automatically can regulate aperture.
In conjunction with reference to Fig. 3-Fig. 5, external controller of the present invention comprises a fixing hoop 21 and a movable dog 22, and fixing hoop 21 fixedly sleevedly can be shown in Fig. 1 at camera lens body 10() outside, formed with camera lens body and be connected without relatively rotating closely; Movable dog 22 fixedly sleevedly can be shown in Fig. 1 at diaphragm preselection ring 11() outside, formed with diaphragm preselection ring and be connected without relatively rotating closely.Fixing hoop 21 is for fixedly mounting stepper motor 24; And movable dog 22 is for fixedly mounting external toothing 221, external toothing 221 is fixed on the excircle of movable dog 22, and integrated mode also can be adopted 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, therefore, when stepper motor 24 rotates, the diaphragm preselection ring of camera lens can be driven to rotate, automatically to regulate aperture size.Stepper motor 24 is connected with cable connector 23, can be connected with the control circuit of camera internal, realize the driving to stepper motor 24 and control, thus can be under program control, drive diaphragm preselection ring to rotate by stepper motor 24, automatically regulate aperture size.
In one preferred embodiment of the invention, fixing hoop 21 is provided with motor mounting groove 211, for fixedly mounting stepper motor 24.Above motor mounting groove 211, be also provided with upper cover plate 26, upper cover plate 26 is removably connected on fixing hoop 21 by screw 27, thus stepper motor 24 is pressed between upper cover plate 26 and motor mounting groove 211.
In motor mounting groove 211, be also provided with an adaptor 25, cable connector 23 is connected by adaptor 25 with stepper motor 24, to facilitate the assembling of cable connector 23 and stepper motor 24.
In one preferred embodiment of the invention, 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 respectively by holding screw 28,29.When fixing hoop 21 is enclosed within outside camera lens body, tighten holding screw 29, the fastening combination of excircle of fixing hoop 21 and camera lens body can be made; When movable dog 22 is enclosed within outside diaphragm preselection ring, tighten holding screw 28, the fastening combination of excircle of movable dog 22 and diaphragm preselection ring can be made.
Claims (6)
1. an external controller for manual iris camera lens, described manual iris camera lens (1) comprises camera lens body (10) and a diaphragm preselection ring (11) that can rotate relative to camera lens body, and it is characterized in that, described external controller (2) comprising:
Fixing hoop (21), the fixedly sleeved outside in camera lens body (10);
Stepper motor (24), is arranged on fixing hoop (21);
Pinion wheel (241), is arranged on the output shaft of described stepper motor (24);
Movable dog (22), the 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 motor mounting groove (211).
3. external controller according to claim 2, it is characterized in that, the top of described motor mounting groove (211) is also provided with upper cover plate (26), upper cover plate (26) is removably connected on fixing hoop (21), and described stepper motor (24) is pressed between upper cover plate (26) and 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 |
|---|---|---|---|
| CN201210165442.2A CN102707543B (en) | 2012-05-24 | 2012-05-24 | External connection control device for manual iris lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210165442.2A CN102707543B (en) | 2012-05-24 | 2012-05-24 | External connection control device for manual iris lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102707543A CN102707543A (en) | 2012-10-03 |
| CN102707543B true CN102707543B (en) | 2015-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210165442.2A Active CN102707543B (en) | 2012-05-24 | 2012-05-24 | External connection control device for manual iris lens |
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| Country | Link |
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| CN (1) | CN102707543B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104267561A (en) * | 2014-10-15 | 2015-01-07 | 河北汉光重工有限责任公司 | Lens camera interface device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4416513A (en) * | 1979-07-16 | 1983-11-22 | Minolta Camera Kabushiki Kaisha | Automatic and manual focus control for objective lens assembly |
| EP0848271A1 (en) * | 1996-12-10 | 1998-06-17 | Canon Kabushiki Kaisha | Lens barrel |
| JP2000241847A (en) * | 1999-02-24 | 2000-09-08 | Canon Inc | Light quantity adjusting device and optical instrument |
| CN1274095A (en) * | 1999-05-18 | 2000-11-22 | 株式会社尼康 | Barrel having transfer article between manual focusing and automatic focusing |
| CN2906680Y (en) * | 2006-05-16 | 2007-05-30 | 天津三星电机有限公司 | Automatic focusing device for mobile phone camera |
| CN101907759A (en) * | 2009-06-05 | 2010-12-08 | 北京红源光电技术公司 | High-precision focusing component used for infrared lens |
| CN202661761U (en) * | 2012-05-24 | 2013-01-09 | 上海锐势机器视觉科技有限公司 | External control device of manual iris lens |
-
2012
- 2012-05-24 CN CN201210165442.2A patent/CN102707543B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4416513A (en) * | 1979-07-16 | 1983-11-22 | Minolta Camera Kabushiki Kaisha | Automatic and manual focus control for objective lens assembly |
| EP0848271A1 (en) * | 1996-12-10 | 1998-06-17 | Canon Kabushiki Kaisha | Lens barrel |
| JP2000241847A (en) * | 1999-02-24 | 2000-09-08 | Canon Inc | Light quantity adjusting device and optical instrument |
| CN1274095A (en) * | 1999-05-18 | 2000-11-22 | 株式会社尼康 | Barrel having transfer article between manual focusing and automatic focusing |
| CN2906680Y (en) * | 2006-05-16 | 2007-05-30 | 天津三星电机有限公司 | Automatic focusing device for mobile phone camera |
| CN101907759A (en) * | 2009-06-05 | 2010-12-08 | 北京红源光电技术公司 | High-precision focusing component used for infrared lens |
| CN202661761U (en) * | 2012-05-24 | 2013-01-09 | 上海锐势机器视觉科技有限公司 | External control device of manual iris lens |
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| Publication number | Publication date |
|---|---|
| CN102707543A (en) | 2012-10-03 |
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