CN203490445U - Controllable aperture switching system - Google Patents
Controllable aperture switching system Download PDFInfo
- Publication number
- CN203490445U CN203490445U CN201320630340.3U CN201320630340U CN203490445U CN 203490445 U CN203490445 U CN 203490445U CN 201320630340 U CN201320630340 U CN 201320630340U CN 203490445 U CN203490445 U CN 203490445U
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- Prior art keywords
- aperture
- switched system
- controllable type
- toothed disc
- type aperture
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- 238000000034 method Methods 0.000 claims abstract description 5
- 230000008569 process Effects 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims description 9
- 239000011148 porous material Substances 0.000 claims description 2
- 230000008859 change Effects 0.000 abstract description 6
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract 2
- 238000012544 monitoring process Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
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- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
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- 230000003287 optical effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Abstract
The utility model relates to a controllable aperture switching system comprising a pedestal, the pedestal is provided with a stepping motor, a blade device which can control the size of an aperture and a gear assembly. The stepping motor is connected with the input terminal of the gear assembly, the output terminal of the gear assembly is connected with the blade device, a spacing plate which presses the blade device and the gear assembly is arranged on the blade device, and therefore the blade device and the gear assembly are prevented from slipping off in a rotation process. According to the utility model, the size of the aperture is changed by the rotation of a plurality of blades, and the uniform gradual change of the aperture is achieved, the exposure quality of the aperture system is improved, the aperture system which cannot be controlled is changed to be controllable, and automation and digitization functions of the aperture system are achieved. The driving system is the stepping motor which replaces a solenoid valve, and an anti-interference function and a controllable function of the aperture system are achieved. the structure is compact, the blades are arranged in completely restricted space, so that the blades are good in antiknock characteristic, high in reliability and long in service life.
Description
[technical field]
The utility model relates to optical device field, more specifically says a kind of controllable type aperture switched system.
[background technology]
Aperture switched system is mainly used in the exposure of camera and controls, and its fundamental purpose is to guarantee that film obtains correctly, suitable exposure.In modern camera system, although there is no film, auto-exposure control structure is still important.Be not only camera system, in monitoring camera, on-vehicle lens, mobile lens, all brought into play important effect.In monitoring camera field, general aperture switched system, is comprised of two blades, by solenoid valve, drives two blades to move up and down, thereby can realize the open and close of aperture.This structure can only be controlled the folding of aperture, but can not make aperture be parked in some big or small invariant positions.And the design is the corresponding countermeasure of making for the shortcoming of this iris diaphragm structure.
On type of drive, the design has also done very large improvement, and traditional solenoid-driven was only there to be two states in the past, without exposure area, control and can say, nowadays adopt stepper motor to drive, can be controlled accurately by umber of pulse the angle of blade rotation, thereby precisely control aperture area.
Monitoring field has proposed more and more higher requirement to the requirement of aperture, and in digitized field, any structure all can obtain future development towards controlled inhibition and generation.
[utility model content]
The utility model object is overcome deficiency of the prior art and the evenly gradual change of a kind of aperture, the controllable aperture switched system of aperture area are provided.
In order to solve the technical matters of above-mentioned existence, controllable type aperture switched system of the present utility model, include base 1, on base 1, be provided with the blading 4 of stepper motor 2 and controlled f-stop pore size, and gearing 3, stepper motor 2 is connected with the input end of gearing 3, and the output terminal of gearing 3 is connected with blading 4, above blading 4, be provided with push down blading 4 and cogwheel gearing 3 avoid rotation process in the limiting plate 5 of landing.
Controllable type aperture switched system as above, it is characterized in that: described cogwheel gearing 3 includes the driven wheel 31 being fixedly connected with rotating shaft on stepper motor 2, be arranged on the rotary gear axis 32 on base 1, be arranged on rotary gear axis 32 and with the transmission gear 33 of driven wheel 31 engagements, the positioning convex ring 34 being provided with on base 1, and be enclosed within the toothed disc 35 on positioning convex ring 34, uniformly on described toothed disc 35 be arranged with a plurality of band moving axis 351, toothed disc 35 one end are provided with the sector district 352 that contacts engagement with transmission gear 33.
Controllable type aperture switched system as above, is characterized in that: described toothed disc 35 is positioned at the below of blading 4.
Controllable type aperture switched system as above, it is characterized in that: described blading 4 includes a plurality of identical blades 41, the boss axle 42 of evenly arranging around locating shaft 34 on base 1, described blade 41 is provided with the vane hole 411 on the boss axle 42 that is installed to base 1, and be installed to toothed disc 35 with the arc shape adjustment hole 412 on moving axis 351, described adjustment hole 421 is realized the folding of blade 41 under the drive of toothed disc 35, and all blade 41 surrounds the diaphragm hole 43 of an approximate circle in centre.
Controllable type aperture switched system as above, is characterized in that: described blade quantity is 6, and corresponding, the boss axle 42 that is inserted into vane hole 411 is 6.
Controllable type aperture switched system as above, is characterized in that: described blade 41 is circular arcs near the limit of diaphragm hole 43.
Controllable type aperture switched system as above, is characterized in that: described sector district 352 is provided with a slotted hole 353 stretching into for boss axle 42, the extreme position of described slotted hole 353 limiting gear dish 35 left and right swings.
Controllable type aperture switched system as above, is characterized in that: described limiting plate 5 is provided with and makes with moving axis 351, can stretch into wherein and rotate therein the arcuate socket 51 do not stopped on toothed disc 34.
Controllable type aperture switched system as above, is characterized in that: described limiting plate 5 is provided with cover plate 6.
The beneficial effects of the utility model are: adopt multiple-blade rotation, change aperture size, realized the even gradual change of aperture, improved the exposure quality of aperture system, aperture system can be controlled by uncontrollable becoming, realized robotization and the digitized function of aperture system.Drive system has replaced solenoid valve by stepper motor, has realized aperture system rejection to disturbance, controllable function.This compact conformation, in the space of blade in restriction completely, so shock resistance is good, fiduciary level is high, and the life-span is long.
[accompanying drawing explanation]
Fig. 1 is cut-away view of the present utility model.
Fig. 2 is explosive view of the present utility model.
Fig. 3 is stereographic map of the present utility model visual angle one.
Fig. 4 is stereographic map of the present utility model visual angle two.
[embodiment]
Below in conjunction with accompanying drawing, the utility model is described in detail:
As shown in Figure 1 and Figure 2, controllable type aperture switched system of the present utility model includes: base 1, stepper motor 2 is installed on base 1, stepper motor 2 is connected with gearing 3, described gearing 3 includes the driven wheel 31 being fixedly connected with rotating shaft on stepper motor 2, be arranged on the rotary gear axis 32 of base 1, transmission gear 33 is installed on rotary gear axis 32, described transmission gear 33 is by two gears that vary in size, under connect to form, can change velocity of rotation, driven wheel 31 band nutating gears 33 rotate, place, centre position at base 1 is provided with positioning convex ring 34, on positioning convex ring 34, cover has the toothed disc 35 around its swing, on toothed disc 35 uniform be arranged with 6 band moving axis 351, toothed disc 35 one end are provided with sector district 352, sector district 352 is provided with slotted hole 353, when toothed disc 35 covers are put on positioning convex ring 34, a boss axle 42 on lower end base 1 can extend in slotted hole 353, toothed disc 35 can be spacing by this boss axle 42, slotted hole 353 can limit the extreme position of swing, transmission gear 33 drives sector district 352 to rotate, whole toothed disc 35 also and then swings together, toothed disc 35 tops are provided with blading 4, described blading 4 includes 6 identical blades 41, the boss axle 42 of evenly arranging around positioning convex ring 34 on base 1, described blade 41 is provided with vane hole 411, and the adjustment hole 412 of arc shape, described vane hole 411 is contained on base 1 boss axle 42, described adjustment hole 412 is installed on the band moving axis 351 of toothed disc 35, six blades 41 surround the diaphragm hole 43 of an approximate circle in centre, 6 limits of this diaphragm hole 43 are not straight line but circular arc, the motion of six blades 41 is in full accord, can realize the swing of certain angle, so the shape that they fence up is symmetrical, and be uniform variation, light can pass through from here, it is a kind of novel structure very, on blading 4, be coated with limiting plate 5, the function of described limiting plate 5 is to carry out spacing to toothed disc 35 and blading 4, and be to prevent that toothed disc 35 from departing from base 1 and pushing down blade 41 in reversing, make whole mechanism blockage, on the other hand, the arcuate socket 51 on limiting plate 5 and the band moving axis on toothed disc 35 351 coordinate, and band moving axis 351 also can extend in arcuate socket 51, and can swing therein, can prevent that blade 41 from departing from and coordinating with base boss axle 42, on limiting plate 5, can also establish a cover plate 6.
The design has adopted stepper motor to add that the kind of drive of gear set drives, and stepper motor has lot of advantages, and it is not subject to the extraneous interference of electromagnetic field, motion accurately, is given a pulse, and the angle of its rotation is certain, and as long as to upper voltage, it can keep stable.
Limiting plate 5 is also very important structure, and when Gai mechanism has assembled, in diaphragm hole 43 size variation of blading 4, blade 41 also will turn an angle, and a plurality of blades 41 are folded, and thickness can change together, and limiting plate 5 will can be suitable in this adjustment process.
Because the design's permissible accuracy is higher, stepper motor 1 is rotary when not powering on, so guarantee that ratio of precision is more difficult in assembling, should first toothed disc 35 be turned to the extreme position of one end in principle, assembling transmission gear 33, then gives stepper motor 1 energising, allows it be fixed on a place, packed and transported process afterwards, also will find a kind of scheme stepper motor 1 cannot be rotated.
The design also needs to provide the aperture step number table of comparisons, is the area that cannot at every turn measure aperture under each step number in the middle of reality, and in the situation that checking product is qualified, tables of data becomes the reference standard of aperture real area size.
Claims (9)
1. a controllable type aperture switched system, it is characterized in that: include base (1), on base (1), be provided with the blading (4) of stepper motor (2) and controlled f-stop pore size, and gearing (3), stepper motor (2) is connected with the input end of gearing (3), the output terminal of gearing (3) is connected with blading (4), the top of blading (4) be provided with push down blading (4) and cogwheel gearing (3) avoid rotation process in the limiting plate (5) of landing.
2. according to controllable type aperture switched system claimed in claim 1, it is characterized in that: described cogwheel gearing (3) includes the driven wheel (31) being fixedly connected with rotating shaft on stepper motor (2), be arranged on the rotary gear axis (32) on base (1), be arranged on rotary gear axis (32) upper and with the transmission gear (33) of driven wheel (31) engagement, the positioning convex ring (34) being provided with on base (1), and be enclosed within the toothed disc (35) on positioning convex ring (34), the upper uniform a plurality of band moving axis (351) that are arranged with of described toothed disc (35), toothed disc (35) one end is provided with the sector district (352) that contacts engagement with transmission gear (33).
3. according to controllable type aperture switched system claimed in claim 2, it is characterized in that: described toothed disc (35) is positioned at the below of blading (4).
4. according to controllable type aperture switched system claimed in claim 2, it is characterized in that: described blading (4) includes a plurality of identical blades (41), at the upper boss axle (42) of evenly arranging around locating shaft (34) of base (1), described blade (41) is provided with the vane hole (411) on the boss axle (42) that is installed to base (1), and be installed to the arc shape adjustment hole (412) on the band moving axis (351) of toothed disc (35), described adjustment hole (421) is realized the folding of blade (41) under the drive of toothed disc (35), all blade (41) surrounds the diaphragm hole (43) of an approximate circle in centre.
5. according to controllable type aperture switched system claimed in claim 4, it is characterized in that: described blade quantity is 6, corresponding, the boss axle (42) that is inserted into vane hole (411) is 6.
6. according to controllable type aperture switched system claimed in claim 4, it is characterized in that: described blade (41) is circular arc near the limit of diaphragm hole (43).
7. according to controllable type aperture switched system claimed in claim 4, it is characterized in that: described sector district (352) is provided with a slotted hole (353) stretching into for boss axle (42), the extreme position of the left and right swing of described slotted hole (353) limiting gear dish (35).
8. according to controllable type aperture switched system claimed in claim 2, it is characterized in that: described limiting plate (5) is provided with the arcuate socket (51) that the band moving axis (351) making on toothed disc (34) can stretch into wherein and rotation is not stopped therein.
9. according to controllable type aperture switched system claimed in claim 1, it is characterized in that: described limiting plate (5) is provided with cover plate (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320630340.3U CN203490445U (en) | 2013-10-12 | 2013-10-12 | Controllable aperture switching system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320630340.3U CN203490445U (en) | 2013-10-12 | 2013-10-12 | Controllable aperture switching system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203490445U true CN203490445U (en) | 2014-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320630340.3U Expired - Lifetime CN203490445U (en) | 2013-10-12 | 2013-10-12 | Controllable aperture switching system |
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| CN (1) | CN203490445U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104614835A (en) * | 2015-02-15 | 2015-05-13 | 中国科学院国家天文台 | Adjustable rectangular aperture |
| CN105607386A (en) * | 2014-11-18 | 2016-05-25 | 精工精密株式会社 | Diaphragm device and optical instrument |
| CN105807536A (en) * | 2015-01-20 | 2016-07-27 | 佳能株式会社 | Stop apparatus, and lens apparatus and image pickup apparatus having the same |
| CN106512234A (en) * | 2016-11-08 | 2017-03-22 | 郑晓牧 | Gamma knife collimator |
| CN109350298A (en) * | 2018-12-20 | 2019-02-19 | 天津市胸科医院 | Realize the ventilation adjusting device of intermittent airway obstruction |
| CN111722453A (en) * | 2019-03-21 | 2020-09-29 | 三星电机株式会社 | Aperture module, camera module and portable electronic device |
| WO2021168786A1 (en) * | 2020-02-28 | 2021-09-02 | 深圳市大疆创新科技有限公司 | Exposure unit, lens assembly, photographing device, and method for assembling exposure unit |
-
2013
- 2013-10-12 CN CN201320630340.3U patent/CN203490445U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105607386A (en) * | 2014-11-18 | 2016-05-25 | 精工精密株式会社 | Diaphragm device and optical instrument |
| CN105607386B (en) * | 2014-11-18 | 2019-06-25 | 精工精密株式会社 | Iris apparatus and optical device |
| CN105807536A (en) * | 2015-01-20 | 2016-07-27 | 佳能株式会社 | Stop apparatus, and lens apparatus and image pickup apparatus having the same |
| CN105807536B (en) * | 2015-01-20 | 2020-05-19 | 佳能株式会社 | Diaphragm device, and lens device and image pickup device having the same |
| CN104614835A (en) * | 2015-02-15 | 2015-05-13 | 中国科学院国家天文台 | Adjustable rectangular aperture |
| CN106512234A (en) * | 2016-11-08 | 2017-03-22 | 郑晓牧 | Gamma knife collimator |
| CN109350298A (en) * | 2018-12-20 | 2019-02-19 | 天津市胸科医院 | Realize the ventilation adjusting device of intermittent airway obstruction |
| CN111722453A (en) * | 2019-03-21 | 2020-09-29 | 三星电机株式会社 | Aperture module, camera module and portable electronic device |
| US11156898B2 (en) | 2019-03-21 | 2021-10-26 | Samsung Electro-Mechanics Co., Ltd. | Aperture module, camera module, and portable electronic device |
| CN111722453B (en) * | 2019-03-21 | 2022-06-28 | 三星电机株式会社 | Aperture module, camera module and portable electronic device |
| WO2021168786A1 (en) * | 2020-02-28 | 2021-09-02 | 深圳市大疆创新科技有限公司 | Exposure unit, lens assembly, photographing device, and method for assembling exposure unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHONGSHAN LIANHE PHOTOELECTRIC TECHNOLOGY CO., LTD Free format text: FORMER NAME: ZHONGSHAN UNION OPTIC CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 528400 Zhongshan Torch Development Zone, Guangdong Road, No. 10 Patentee after: UNION OPTECH Co.,Ltd. Address before: 528400 Guangdong province Zhongshan Dongli Torch Development Zone torch joint electronic city building A3 Patentee before: UNION OPTECH Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140319 |