CN204178032U - There is the low-light level night vision device of Power focus and presetting bit function - Google Patents
There is the low-light level night vision device of Power focus and presetting bit function Download PDFInfo
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- CN204178032U CN204178032U CN201420699850.0U CN201420699850U CN204178032U CN 204178032 U CN204178032 U CN 204178032U CN 201420699850 U CN201420699850 U CN 201420699850U CN 204178032 U CN204178032 U CN 204178032U
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- night vision
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Abstract
The low-light level night vision device with Power focus and presetting bit function of the present utility model, comprises focus lamp group, lens barrel, focusing cylindrical cam and housing, and the rotation of focusing cylindrical cam can be ordered about focus lamp group and move forward and backward, and realizes focussing force; Be characterised in that: described housing is fixed with focus motor and potentiometer, the periphery focusing on cylindrical cam is fixed with gear ring, the output shaft of focus motor is fixed with the driving gear be meshed with gear ring, the rotation axis of potentiometer is fixed with the follower gear be meshed with gear ring.Low-light level night vision device of the present utility model, is moved by the forward and backward of focus motor, can order about focus lamp group and seesaw along optical axis, achieves the Power focus function of low-light level night vision device; Can be known, record the location status of focus lamp group by potentiometer, achieve the presetting bit function of low-light level night vision device.By the record to special scenes focus lamp group position, can switch between different observation position easily, can ensure again that observation picture is clear simultaneously.
Description
Technical field
The utility model relates to a kind of low-light level night vision device, in particular, particularly relates to a kind of low-light level night vision device with Power focus and presetting bit function.
Background technology
Low-light level night vision device at faint starlight, can see target at night clearly in the natural light situation that moonlight etc. are faint, is applicable to very much scouting, aims at, the monitoring fields such as observation.But in actual use procedure, most low-light level night vision device can only rely on Manual focusing, when observing the target of different distance, need the focus lamp group of manually twisting low-light camera lens, like this, operating personnel on low-light level night vision device side, must limit usable range and the place of low-light level night vision device.Given this, if increase motor on low-light level night vision device, by control circuit, realize Power focus function, the person of being convenient to operation uses, such as instrument can be erected at roof, and personnel then can hide operated from a distance in doors.If increasing potentiometer in addition, can with focus motor cooperation, preserve the focus information of a certain position, like this, can switch between different observation position easily, can ensure again that observation picture is clear simultaneously.
Summary of the invention
The utility model, in order to overcome the shortcoming of above-mentioned technical matters, provides a kind of low-light level night vision device with Power focus and presetting bit function.
The low-light level night vision device with Power focus and presetting bit function of the present utility model, comprises focus lamp group, lens barrel, focusing cylindrical cam and housing, and described focus lamp group is arranged in lens barrel, and focus on the periphery that cylindrical cam is positioned at lens barrel, lens barrel is fixed on housing; The rotation of focusing cylindrical cam can be ordered about focus lamp group and move forward and backward, and realizes focussing force; Its special feature is: described housing is fixed with focus motor and potentiometer, the periphery focusing on cylindrical cam is fixed with gear ring, the output shaft of focus motor is fixed with the driving gear be meshed with gear ring, the rotation axis of potentiometer is fixed with the follower gear be meshed with gear ring.
Housing plays fixing and supporting role, and focus lamp group is by mobile mirror holder and lens barrel and focuses on cylindrical cam and match, and rotating focusing cylindrical cam, can to order about focus lamp group movable along the axis direction of lens barrel, to realize focussing force.Because the periphery focusing on cylindrical cam is fixed with gear ring, the output shaft of focus motor is fixed with the driving gear be meshed with gear ring, under the positive and negative rotation of focus motor, focus lamp group can be ordered about and move forward and backward, achieve the Power focus effect of low-light level night vision device.Outputing signal by reading the potentiometer be meshed with gear ring, the positional information of focus lamp group can be measured at any time, by the record to focus lamp group position under special scenes, the presetting bit function of low-light level night vision device can be realized.
The low-light level night vision device with Power focus and presetting bit function of the present utility model, comprise the control circuit controlled focusing and the presetting bit of low-light level night vision device, control circuit is connected with focus motor with potentiometer respectively by potentiometer connecting line, motor connecting wire.
Control circuit is controlled focus motor by motor connecting wire, controls the rotating forward of focus motor, reversion realizes focusing function.Control circuit measures the output signal of potentiometer by potentiometer connecting line, correctly to judge the position of present convergence mirror group, realizes presetting bit function.
The low-light level night vision device with Power focus and presetting bit function of the present utility model, described focus motor and potentiometer are fixed on housing by motor and potentiometer fixture.
The beneficial effects of the utility model are: low-light level night vision device of the present utility model, by fixed gear ring on the focusing cylindrical cam of low-light level night vision device, fixed-focus motor on housing, and the output shaft of focus motor is fixed with the driving gear be meshed with gear ring, moved by the forward and backward of focus motor, focus lamp group can be ordered about seesaw along optical axis, achieve the Power focus function of low-light level night vision device.Housing arranges potentiometer, and the rotation axis of potentiometer is fixed with the follower gear be meshed with gear ring, can be known by potentiometer, record the location status of focus lamp group, achieve the presetting bit function of low-light level night vision device.
By arranging the control circuit be connected with potentiometer, focus motor through potentiometer connecting line, motor connecting wire, control circuit, to the positive and negative control of focus motor, can order about focus lamp group and complete focusing function; The measurement that control circuit outputs signal potentiometer, can judge, record the location status of focus lamp group, by the record to ad-hoc location scene focus lamp group position, namely the presetting bit function of low-light level night vision device is achieved, can switch between different observation position scene easily, can ensure again that observation picture is clear simultaneously.
Accompanying drawing explanation
Fig. 1 is the front view of low-light level night vision device of the present utility model;
Fig. 2 is the structural representation after the vertical view half-twist of low-light level night vision device of the present utility model;
In figure: 1 potentiometer, 2 follower gears, 3 motors and potentiometer fixture, 4 focus motor, 5 driving gears, 6 gear rings, 7 focus on cylindrical cam, 8 potentiometer connecting lines, 9 motor connecting wires, 10 control circuits, 11 housings.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
As depicted in figs. 1 and 2, sets forth the structural representation after the front view of the low-light level night vision device of utility model and vertical view half-twist, it comprises focus lamp group, lens barrel, focusing cylindrical cam 7, housing 11, focus motor 4, gear ring 6, potentiometer 1 and control circuit 10; Focus on the periphery that cylindrical cam 7 is arranged at lens barrel (lens barrel does not draw in the drawings), housing 11 and lens barrel fix.Focus lamp group (focus lamp group does not draw in the drawings yet) is by mobile mirror holder and lens barrel and focuses on cylindrical cam and match, and rotates to focus on cylindrical cam and can order about focus lamp group and move, to realize focussing force.
Gear ring 6 is fixed on the periphery focusing on cylindrical cam 7, focus motor 4 and potentiometer 1 are fixed on housing 11 by motor and potentiometer fixture 3, the output shaft of focus motor 4 is fixed with the driving gear 5 be meshed with gear ring, the rotation axis of potentiometer 1 is fixed with the follower gear 5 be meshed with gear ring 6.The rotating forward of focus motor 4, reversion are rotated, and by the engagement rotation of driving gear 2 with gear ring 6, can order about focusing on that cylindrical cam 7 rotates forward, return motion, and then order about focus lamp group and realize focussing force, achieve the Power focus of low-light level night vision device.By the engaged transmission of gear ring 6 with follower gear 2, the rotation of potentiometer 1 rotation axis can be ordered about, realize the measurement to focus lamp group position.
Shown control circuit 10 is connected with potentiometer 1, focus motor 4 respectively by potentiometer connecting line 8, motor connecting wire 9, to realize focusing on and position measurement.If apply forward voltage to focus motor 4 by control circuit 10, focus motor 4 rotates forward, and focus lamp group slowly travels forward, now target focus nearby; Apply reverse voltage to focus motor 4 by control circuit 10, focus motor 4 rotates backward, and drive focus lamp group to move backward, now distant object can focus.
Focusing presetting bit setting and calling function realize: focus motor 4 rotation can drive the rotation of potentiometer 1, potentiometer 1 is outputed signal change, if: focus motor 4 rotates forward, and potentiometer output signal is from large to small, focus motor 4 rotates backward, and potentiometer 1 output signal is changed from small to big.When needing the focusing presetting bit of preserving certain target, first by target focus, then read the output signal of now potentiometer 1, be set to A, this output signal value is saved to the storage unit of control circuit 10, complete the setting of presetting bit.When calling this target presetting bit, control circuit 10 first reads the target location potentiometer output signal A of storage inside, then the current output signal of reading potential device 1, be set to B, and judge the relation of A and B, if (1) A>B, then control circuit 10 sends reverse voltage to focus motor 4, control focus motor 4 to rotate backward, drive focus lamp group to move backward, drive potentiometer 1 to rotate.If (2) A=B, then current location is exactly the focal position needed, and completes presetting bit and calls.If (3) A<B, then control circuit 10 sends forward voltage to focus motor 4, and motor rotates forward, and drives focus lamp group to travel forward, and drives potentiometer 1 to rotate.(1) and (3) kind situation under, potentiometer 1 rotate after, again gather potentiometer output signal B, then compare with A, until A=B.
The utility model can pass through without the technical characteristic described or adopt existing techniques in realizing, image forming job and the control circuit of such as low-light level night vision device externally connect, do not repeat them here, certainly, above-mentioned explanation is not the restriction novel to this, the utility model is also not limited in above-mentioned citing, also comprises change that those skilled in the art make in essential scope of the present invention, remodeling, interpolation or replacement.Such as above-mentioned motor main story, potentiometer value becomes large, also can make motor and rotate backward, and potentiometer value becomes large.
Claims (3)
1. one kind has the low-light level night vision device of Power focus and presetting bit function, comprise focus lamp group, lens barrel, focusing cylindrical cam (7) and housing (11), described focus lamp group is arranged in lens barrel, and focus on the periphery that cylindrical cam is positioned at lens barrel, lens barrel is fixed on housing; The rotation of focusing cylindrical cam can be ordered about focus lamp group and move forward and backward, and realizes focussing force; It is characterized in that: described housing is fixed with focus motor (4) and potentiometer (1), the periphery focusing on cylindrical cam is fixed with gear ring (6), the output shaft of focus motor is fixed with the driving gear (5) be meshed with gear ring, the rotation axis of potentiometer is fixed with the follower gear (2) be meshed with gear ring.
2. the low-light level night vision device with Power focus and presetting bit function according to claim 1, it is characterized in that: comprise the control circuit (10) controlled focusing and the presetting bit of low-light level night vision device, control circuit is connected with focus motor (4) with potentiometer (1) respectively by potentiometer connecting line (8), motor connecting wire (9).
3. the low-light level night vision device with Power focus and presetting bit function according to claim 1 and 2, is characterized in that: described focus motor (2) and potentiometer (1) are fixed on housing (11) by motor and potentiometer fixture (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420699850.0U CN204178032U (en) | 2014-11-20 | 2014-11-20 | There is the low-light level night vision device of Power focus and presetting bit function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420699850.0U CN204178032U (en) | 2014-11-20 | 2014-11-20 | There is the low-light level night vision device of Power focus and presetting bit function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204178032U true CN204178032U (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420699850.0U Expired - Fee Related CN204178032U (en) | 2014-11-20 | 2014-11-20 | There is the low-light level night vision device of Power focus and presetting bit function |
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| Country | Link |
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| CN (1) | CN204178032U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105824099A (en) * | 2016-06-03 | 2016-08-03 | 浙江兆晟科技股份有限公司 | Infrared imaging rapid and automatic focusing method and system based on position memory |
| CN106210519A (en) * | 2016-07-12 | 2016-12-07 | 山东神戎电子股份有限公司 | A kind of focus method of the autofocus system of band memory function |
| CN111343384A (en) * | 2020-03-16 | 2020-06-26 | 苏州光领电子科技有限公司 | Calibration automatic focusing method for image measurement |
-
2014
- 2014-11-20 CN CN201420699850.0U patent/CN204178032U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105824099A (en) * | 2016-06-03 | 2016-08-03 | 浙江兆晟科技股份有限公司 | Infrared imaging rapid and automatic focusing method and system based on position memory |
| CN106210519A (en) * | 2016-07-12 | 2016-12-07 | 山东神戎电子股份有限公司 | A kind of focus method of the autofocus system of band memory function |
| CN111343384A (en) * | 2020-03-16 | 2020-06-26 | 苏州光领电子科技有限公司 | Calibration automatic focusing method for image measurement |
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| 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: 20150225 Termination date: 20151120 |
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| EXPY | Termination of patent right or utility model |