CN204807883U - Folk art term position direct current drive light ring camera lens and camera thereof - Google Patents
Folk art term position direct current drive light ring camera lens and camera thereof Download PDFInfo
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- CN204807883U CN204807883U CN201520378072.XU CN201520378072U CN204807883U CN 204807883 U CN204807883 U CN 204807883U CN 201520378072 U CN201520378072 U CN 201520378072U CN 204807883 U CN204807883 U CN 204807883U
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- aperture
- light quantity
- limiting structure
- catch
- camera lens
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Abstract
The utility model discloses a folk art term position direct current drive light ring camera lens and camera thereof, including setting up the light ring in the camera lens, the light ring changes the size that the light ring leads to the light quantity by motor drive, still includes a limit structure, and when the motor rotated the primary importance, a limit structure lay in an extreme position, the light ring leads to the light quantity for the biggest, when the motor rotated the second place, a limit structure lay in the 2nd extreme position, the light ring leads to the light quantity for predetermineeing logical light quantity. The accurate control light ring leads to light quantity, to meet customer needs under direct current driven mode to simple structure, the cost is lower.
Description
Technical field
Be applied to field of video monitoring, particularly a kind of direct drive aperture camera lens of folk art term position and video camera thereof.
Background technology
The aperture of camera lens drives and is mainly divided into video drive and direct drive.
Video drive aperture refers to that video level is outputted to the inside of automatic diaphragm lens by video camera, then exports control voltage by the driving circuit of its inside, makes lens aperture adjust motor and rotates.
Direct drive aperture refers to and adds the driving circuit of lens aperture motor in video camera inside, directly can export direct-current control voltage to the aperture motor in camera lens to make it rotate.
Because the mode of direct drive aperture is more simple, cost is lower, mainly uses the mode of direct drive aperture at present on the market.But it is not high that the size that direct drive directly changes aperture light hole also exists control accuracy, affects the problem of shooting picture.
Summary of the invention
A kind of folk art term position direct drive aperture camera lens of the utility model and video camera thereof, accurately can control the change of aperture size when direct drive aperture, and realize simple, with low cost.
For achieving the above object, the utility model provides technical scheme as follows:
A kind of folk art term position direct drive aperture camera lens, comprise the aperture be arranged in camera lens, described aperture is driven the size changing aperture and lead to light quantity by motor, also comprise the first position limiting structure, when electric machine rotation is to primary importance, when the first position limiting structure is positioned at the first extreme position, it is maximum that described aperture leads to light quantity, when electric machine rotation is to the second place, when the first position limiting structure is positioned at the second extreme position, described aperture leads to light quantity for presetting logical light quantity.
Preferably, described aperture comprises the first catch and the second catch, two catch superpositions are placed, under the dragging of motor forward or reverse motion, two catch in opposite directions or opposing motion, and two catch surround a light hole, when electric machine rotation is to primary importance, the logical light quantity of light hole that two catch are opposing when moving to the first extreme position of the first position limiting structure is maximum, when electric machine rotation is to the second place, two catch move toward one another to the logical light quantity of light hole during the second extreme position of the first position limiting structure for presetting logical light quantity.
Further, described aperture is arranged on a base, the base corresponding with aperture light hole position is provided with one by the through hole of maximum logical light quantity, light enters in camera lens after passing the light hole of through hole and aperture, the first described position limiting structure comprises the first gag lever post be socketed on motor center axle and two raised lines extended internally be separately positioned on inside base bilateral wall, spacing is provided with between two raised lines of the same side, the first described gag lever post is along with electric machine rotation, two ends of the first gag lever post are rotated respectively in the stroke of two of two side raised lines, and be described first extreme position and the second extreme position when an end of the first gag lever post props up two raised lines of same sidewall respectively.
Further, also comprise the second position limiting structure, the second described position limiting structure comprises the second gag lever post and stopper slot, stopper slot is arranged on the first catch and the second catch, second gag lever post is fixed on base through the slotted eye of stopper slot, is respectively two end positions that the second gag lever post is positioned at stopper slot when the first gag lever post moves to the first extreme position and the second extreme position.
Preferably, described aperture is iris-type diaphragm, iris-type diaphragm is made up of more blades, each blade connects a curved bar, curved bar action when motor-driven gear transmission, described curved bar pulls blade to move, change the size of the light hole that blade surrounds, described gear is provided with the first described position limiting structure, when motor movement is to primary importance, first position limiting structure is positioned at the first extreme position, the logical light quantity of aperture light hole is maximum, when motor movement is to the second place, first position limiting structure is positioned at the second extreme position, the logical light quantity of aperture light hole is for presetting logical light quantity.
Comprise a kind of video camera in addition, apply the folk art term position direct drive aperture camera lens described in above-mentioned any one.
The light hole size of the utility model aperture can meet the demand of user, and control accuracy is high, and structure is simple, and cost is lower.
Accompanying drawing explanation
Figure 1A and Figure 1B is the structural representation of the utility model embodiment one;
Fig. 2 is the utility model embodiment one structural blast figure;
Fig. 3 A be embodiment one aperture lead to light quantity maximum time structural drawing;
Fig. 3 B is that embodiment one first gag lever post is positioned at the first extreme position schematic diagram;
Fig. 3 C be embodiment one aperture lead to light quantity maximum time inner structure schematic diagram;
Fig. 4 A is the structural drawing that embodiment one aperture leads to when light quantity is setting logical light quantity;
Fig. 4 B is that embodiment one first gag lever post is positioned at the second extreme position schematic diagram;
Fig. 4 C is the inner structure schematic diagram that embodiment one aperture leads to when light quantity is setting logical light quantity;
Fig. 5 is the schematic diagram of the utility model embodiment two.
Embodiment
Be described in further details technical solutions of the utility model below in conjunction with drawings and Examples, following examples are not formed restriction of the present utility model.
Composition graphs 1 and Fig. 2 can find out, folk art term position of the present utility model aperture camera lens comprises aperture, motor 1 and the first position limiting structure.Driven the size changing aperture light hole 5 by motor 1, when electric machine rotation is to primary importance, the first position limiting structure is positioned at the first extreme position, and logical light quantity is maximum, and defining this position is the first gear; When electric machine rotation is to the second place, the first position limiting structure is positioned at the second extreme position, and logical light quantity is for presetting logical light quantity, and defining this position is the second gear.Electric machine rotation to primary importance and second place normal conditions are two rightabout positions.And the logical light quantity of the light hole 5 of aperture is preset logical light quantity to refer to the logical light quantity determining needs according to user environment in advance.Then the logical light quantity needed according to user selects the aperture of corresponding light hole size.Such as select the aperture shooting effect of two logical light quantity grades less of maximum logical light quantity better under the good scene of light by day, the logical light quantity of this grade can as presetting logical light quantity in the present embodiment, and aperture light hole is now the size of the second gear time circle light hole 5 in the utility model.Not fine at night due to sight line, usually need aperture aperture being placed through logical light quantity.
For the aperture of two types, specific implementation of the present utility model is described below, certain aperture is not limited to these two kinds.Other embodiments with the equivalent replacement of identical function all belong to the category of the utility model protection.
Embodiment one:
Aperture in the present embodiment comprises the first catch 41 and the second catch 42, two catch superpositions are placed on a base 2, motor 1 forward or reverse drag two catch in opposite directions or opposing motion time, two catch surround a light hole 5, light hole 5 along with two catch in opposite directions or opposing motion change size.Position corresponding with light hole 5 on base 2 is provided with one by the through hole 3 of maximum logical light quantity, and light needs the imageing sensor by entering camera lens inside after through hole 3 and light hole 5.
The switching realizing the utility model two gear needs the first position limiting structure.In the present embodiment, this first position limiting structure comprises the first gag lever post 6 of being socketed on motor 1 central shaft and to be separately positioned on the inwall of base 2 both sides and the raised line 21 extended internally.Require the inwall of every side to be provided with two raised lines 21 and be provided with certain spacing between the raised line of two, the same side.Two ends of the first gag lever post 6 lay respectively in the stroke range of two raised lines of both sides.The first gag lever post 6 can be driven to rotate when motor 1 forward or reverse moves.Be the extreme position of the first position limiting structure when the end of the first gag lever post 6 props up raised line 21, now motor 1 stops operating.Concrete example is as follows, and suppose that motor 1 moves along two catch are opposing during rotating backward as shown in Figure 3A, the light hole 5 that two catch surround becomes large.When in Fig. 3 B, the end of the first gag lever post 6 (being arranged in figure upside) props up the raised line 21 in left side, motor 1 stops operating, and defining this position is the first extreme position.Light quantity is led to maximum, as Fig. 3 C during by can be realized this to the careful design of raised line 21 spacing and aperture light hole 5.Contrary, motor 1 is along two catch move toward one another during rotating forward shown in Fig. 4 A, and the light hole 5 that two catch surround diminishes.When the end of the first gag lever post 6 (being arranged in figure upside) in Fig. 3 B rotate prop up right side raised line 21 time motor 1 stop operating, defining this position is the second extreme position, by the design of mechanical trip, make now to lead to light quantity for presetting logical light quantity, concrete as Fig. 4 B and Fig. 4 C.
In two ends of the first gag lever post 6, projection is set along lid 8 direction, sees the concrete stroke of the first gag lever post 6 for convenience clearly, can with reference to figure 3A, the projection on the first gag lever post 6 is slided along the arc slot on lid 8.
Because the first catch 41 and the second catch 42 are that superposition is arranged, and catch is generally sheet metal, therefore can there is offset problem in the moving process of two catch.For overcoming these problems, be also provided with the second position limiting structure, this second position limiting structure comprises the stopper slot 44 be arranged on the first catch 41 and the second catch 42 and the second gag lever post 7 be arranged on through stopper slot 44 on base 2.First gag lever post 6 is respectively two end positions that the second gag lever post 7 is positioned at stopper slot 44 when moving to the first extreme position and the second extreme position.Above-mentionedly be arranged so that two catch all the time along predetermined stroke motion, not easily offset.
In addition as a kind of optimal way, the second gag lever post 7 end is set to mushroom.Like this, the height due to the second gag lever post 7 is higher than the height after two catch superpositions, and the structure of mushroom-shaped can avoid catch to tilt.
Embodiment two:
As shown in Figure 5, the aperture in the present embodiment is the iris-type diaphragm with multiple blade, and each blade connects a curved bar, and curved bar pulls blade movement when gear drive, and change light hole 5 size that blade surrounds, gear is driven by motor 1.Gear is provided with the first position limiting structure, and when electric machine rotation is to primary importance, the first position limiting structure is at the first extreme position, the logical light quantity of aperture light hole 5 is maximum, when electric machine rotation is to the second place, the first position limiting structure is at the second extreme position, and aperture light hole 5 leads to light quantity for presetting logical light quantity.
Folk art term position of the present utility model direct drive aperture camera lens, solves the inaccurate problem of aperture light hole 5 size adjustment in prior art, according to demand accurate adjustment aperture light hole 5 size of user, can ensure logical light quantity.Compared with prior art shooting effect is better, and structure and realization are simply, with low cost.
In addition, the utility model also comprises the video camera of an application above-mentioned folk art term position direct drive aperture camera lens, does not repeat them here.
Above embodiment is only in order to illustrate technical scheme of the present invention but not to be limited; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection domain that all should belong to the claim appended by the present invention.
Claims (6)
1. a folk art term position direct drive aperture camera lens, comprise the aperture be arranged in camera lens, described aperture is driven the size changing aperture and lead to light quantity by motor, it is characterized in that, also comprise the first position limiting structure, when electric machine rotation is to primary importance, the first position limiting structure is positioned at the first extreme position, and it is maximum that described aperture leads to light quantity; When electric machine rotation is to the second place, the first position limiting structure is positioned at the second extreme position, and described aperture leads to light quantity for presetting logical light quantity.
2. folk art term position according to claim 1 direct drive aperture camera lens, it is characterized in that, described aperture comprises the first catch and the second catch, two catch superpositions are placed, under the dragging of motor forward or reverse motion, two catch in opposite directions or opposing motion, and two catch surround a light hole, when electric machine rotation is to primary importance, the logical light quantity of light hole that two catch are opposing when moving to the first extreme position of the first position limiting structure is maximum, when electric machine rotation is to the second place, two catch move toward one another to the logical light quantity of light hole during the second extreme position of the first position limiting structure for presetting logical light quantity.
3. folk art term position according to claim 2 direct drive aperture camera lens, it is characterized in that, described aperture is arranged on a base, the base corresponding with aperture light hole position is provided with one by the through hole of maximum logical light quantity, light enters in camera lens after passing the light hole of through hole and aperture, the first described position limiting structure comprises the first gag lever post be socketed on motor center axle and two raised lines extended internally be separately positioned on inside base bilateral wall, spacing is provided with between two raised lines of the same side, the first described gag lever post is along with electric machine rotation, two ends of the first gag lever post are rotated respectively in the stroke of two of two side raised lines, and be described first extreme position and the second extreme position when an end of the first gag lever post props up two raised lines of same sidewall respectively.
4. folk art term position according to claim 3 direct drive aperture camera lens, is characterized in that,
Also comprise the second position limiting structure, the second described position limiting structure comprises the second gag lever post and stopper slot, stopper slot is arranged on the first catch and the second catch, second gag lever post is fixed on base through the slotted eye of stopper slot, is respectively two end positions that the second gag lever post is positioned at stopper slot when the first gag lever post moves to the first extreme position and the second extreme position.
5. folk art term position according to claim 1 direct drive aperture camera lens, it is characterized in that, described aperture is iris-type diaphragm, iris-type diaphragm is made up of more blades, each blade connects a curved bar, curved bar action when motor-driven gear transmission, described curved bar pulls blade to move, change the size of the light hole that blade surrounds, described gear is provided with the first described position limiting structure, when motor movement is to primary importance, first position limiting structure is positioned at the first extreme position, the logical light quantity of aperture light hole is maximum, when motor movement is to the second place, first position limiting structure is positioned at the second extreme position, the logical light quantity of aperture light hole is for presetting logical light quantity.
6. a video camera, is characterized in that, application rights requires the folk art term position direct drive aperture camera lens described in 1-5 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520378072.XU CN204807883U (en) | 2015-08-06 | 2015-08-06 | Folk art term position direct current drive light ring camera lens and camera thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520378072.XU CN204807883U (en) | 2015-08-06 | 2015-08-06 | Folk art term position direct current drive light ring camera lens and camera thereof |
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| CN204807883U true CN204807883U (en) | 2015-11-25 |
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| CN201520378072.XU Active CN204807883U (en) | 2015-08-06 | 2015-08-06 | Folk art term position direct current drive light ring camera lens and camera thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108896191A (en) * | 2018-08-03 | 2018-11-27 | 烟台艾睿光电科技有限公司 | A kind of diaphragm and infrared thermal imager for infrared thermal imager |
| CN108919469A (en) * | 2018-08-03 | 2018-11-30 | 宁波舜宇红外技术有限公司 | Infrared measurement of temperature camera lens |
| CN110737146A (en) * | 2018-07-20 | 2020-01-31 | 三星电机株式会社 | Aperture module and camera module including the same |
| WO2020097887A1 (en) * | 2018-11-15 | 2020-05-22 | 深圳市大疆创新科技有限公司 | Camera lens adjustment method and device, control apparatus, and control system |
-
2015
- 2015-08-06 CN CN201520378072.XU patent/CN204807883U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110737146A (en) * | 2018-07-20 | 2020-01-31 | 三星电机株式会社 | Aperture module and camera module including the same |
| US10931857B2 (en) | 2018-07-20 | 2021-02-23 | Samsung Electro-Mechanics Co., Ltd. | Aperture module and camera module including the same |
| CN110737146B (en) * | 2018-07-20 | 2021-07-13 | 三星电机株式会社 | Aperture module and camera module including the same |
| CN108896191A (en) * | 2018-08-03 | 2018-11-27 | 烟台艾睿光电科技有限公司 | A kind of diaphragm and infrared thermal imager for infrared thermal imager |
| CN108919469A (en) * | 2018-08-03 | 2018-11-30 | 宁波舜宇红外技术有限公司 | Infrared measurement of temperature camera lens |
| WO2020097887A1 (en) * | 2018-11-15 | 2020-05-22 | 深圳市大疆创新科技有限公司 | Camera lens adjustment method and device, control apparatus, and control system |
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