CN110275266A - The airborne big small field of view switching mechanism of coaxial optical system - Google Patents
The airborne big small field of view switching mechanism of coaxial optical system Download PDFInfo
- Publication number
- CN110275266A CN110275266A CN201910462210.5A CN201910462210A CN110275266A CN 110275266 A CN110275266 A CN 110275266A CN 201910462210 A CN201910462210 A CN 201910462210A CN 110275266 A CN110275266 A CN 110275266A
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- Prior art keywords
- switching
- screw rod
- switching mechanism
- switching mirror
- support
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/14—Mountings, adjusting means, or light-tight connections, for optical elements for lenses adapted to interchange lenses
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
Abstract
The present invention provides a kind of big small field of view switching mechanism of airborne coaxial optical system, including switching mechanism support and switching mirror, it further include the driving assembly for switching mirror support and can control the switching mirror support mobile relative to the switching mechanism support relative rectilinear, the switching mirror is installed on the switching mirror support, the driving component includes stepper motor and drives the screw rod of rotation by the stepper motor, the screw rod is threadedly coupled with the switching mirror support, and the screw rod and the stepper motor are installed on mounting rack.Driving assembly can control switching mirror linear movement in the present invention, visual field switching is quick, the form that driving assembly is cooperated using stepper motor and screw rod, the coding-control of stepper motor can accurately control the linear movement distance of switching mirror, not only be accurately positioned, and have extraordinary self-locking property, in addition the switching mechanism of this structure is used, structure is simple, and space hold is small, and processing and adjustment are easier.
Description
Technical field
The invention belongs to mechanical-optical setups, and in particular to a kind of airborne big small field of view switching mechanism of coaxial optical system.
Background technique
Due to needing being switched fast for big small field of view in some airborne visible/infrared equal coaxial optical systems, just
The switching mechanism of high repetitive positioning accuracy, high switch speed is needed, while also requiring switching mechanism that there is good self-locking energy
Power is to resist influence of the carrier aircraft vibration for optical system.Currently, the visual field switching mechanism used both at home and abroad generally has translation to cut
It changes planes structure and rotary switching mechanism, although existing translation switching mechanism may be implemented switching mirror and be switched fast, but to guarantee to repeat
Positioning accuracy and self-locking performance, limit and self-locking mechanism are typically complex, and processing and adjustment also can be more complicated, while can account for
With biggish spatial volume, this switching mechanism optical-mechanical system limited for bulk is not appropriate for.Existing rotary cutting
It changes planes structure, as the self-locking performance of switching mirror may be implemented in double leval jib switching mechanism, worm and gear switching mechanism, but can also exist and repeat
The disadvantages of positioning accuracy is poor, switch speed is slow.
Summary of the invention
The present embodiments relate to a kind of airborne big small field of view switching mechanisms of coaxial optical system, can at least solve existing skill
The segmental defect of art.
The present embodiments relate to a kind of airborne big small field of view switching mechanisms of coaxial optical system, including switching mechanism support
And switching mirror, it further include switching mirror support and can control the relatively described switching mechanism support of the switching mirror support relatively straight
The mobile driving assembly of line, the switching mirror are installed on the switching mirror support, the driving component include stepper motor with
And the screw rod of rotation is driven by the stepper motor, the screw rod is threadedly coupled with the switching mirror support, the screw rod and institute
It states stepper motor to install on mounting rack, the mounting rack is detachably installed on the switching mechanism support.
As one of embodiment, the driving component further includes installing in the linear guide on the mounting rack, described to cut
It changes mirror support to be slidably connected with the linear guide, and the length extending direction of the linear guide and the length of the screw rod are prolonged
It is identical to stretch direction.
As one of embodiment, the linear guide is two, and the screw rod is located between two linear guides.
As one of embodiment, connected between the linear guide and the switching mirror support by linear bearing.
As one of embodiment, the linear guide and the screw rod are respectively positioned on described the same side for switching mirror.
As one of embodiment, the screw rod is threadedly coupled by feed screw nut with the switching mirror support.
The embodiment of the present invention at least has the following beneficial effects:
In switching mechanism provided by the invention, driving assembly is added, switching mirror support band can control by driving assembly
Dynamic switching mirror, which moves linearly and then reaches big small field of view, is switched fast purpose, and driving assembly is cooperated using stepper motor and screw rod
Form, the coding-control of stepper motor can accurately control switching mirror linear movement distance, be not only accurately positioned, and have
There is extraordinary self-locking property, in addition use the switching mechanism of this structure, structure is simple, and space hold is small, processing and adjustment
It is easier.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structural schematic diagram of the airborne big small field of view switching mechanism of coaxial optical system provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
A kind of big small field of view switching mechanism of airborne coaxial optical system, including switching are provided referring to Fig. 1 embodiment of the present invention
Mechanism support 1, switching mirror 2, switching mirror support 3 and driving assembly 4, switching mechanism support 1 are main body portion, in addition each section
It installs on switching mechanism support 1, specifically switching mirror 2 is installed by switching mirror support 3 on switching mechanism support 1, and
Switching mirror support 3 can move linearly with respect to switching mechanism support 1 under the effect of driving assembly 4, and then be able to drive switching
Mirror 2 is mobile relative to 1 synchronous linear of switching mechanism support, and moving direction refines driving assembly perpendicular to the optical axis direction of switching mirror 2
4 structure comprising stepper motor 41 and screw rod 42 wherein to be threadedly coupled between screw rod 42 and switching mirror support 3, and walk
Into motor 41 can drive screw rod 42 have mercy on own axes rotation, the length direction of screw rod 42 be switching mirror 2 linear movement direction,
When screw rod 42 is rotated around own axes, then switching mirror support 3 can move linearly along screw rod 42, and stepper motor 41 and screw rod 42 are equal
It installs on a mounting rack, and mounting rack is then installed on switching mechanism support 1, and switching mechanism branch is specifically removably mounted to
On seat 1.In the present invention, switching mirror 2 is controlled by driving assembly 4 and is moved linearly with respect to switching mechanism support 1, specifically vertically
In the linear movement of switching 2 optical axis direction of mirror, and then achieve the purpose that switching mechanism switches visual field size, switch ratio faster,
And since driving assembly 4 is using stepper motor 41 and the cooperation control linear movement of screw rod 42, the precision of linear movement is relatively high,
It can be accurately positioned the position of switching mirror 2, in addition cooperated using the driving assembly 4 of this structure and switching mirror 2, overall structure ratio
Relatively simple, space hold is small, and processing is also easier with adjustment.
Optimize above-described embodiment, continues the structure for refining driving assembly 4, further include linear guide 43, the linear guide
43 also install on mounting rack, switch to be slidably connected between mirror support 3 and linear guide 43, and the length of linear guide 43 is prolonged
It is identical as the length extending direction of screw rod 42 to stretch direction, i.e. the two cocurrent and parallel extends.In the present embodiment, linear guide 43 is to lead
To component, screw rod 42 is transmission parts, can guarantee the switching linear movement ratio of mirror support 3 by linear guide 43 and the cooperation of screw rod 42
It is relatively steady.In general, linear guide 43 is two, screw rod 42 is located between two linear guides 43, and linear guide 43 and switching
It is connected between mirror support 3 using linear bearing 31.Specifically, mounting rack has 44 structure of U-type groove, linear guide 43 and screw rod 42
It is respectively positioned on 44 inside of U-type groove, switching 3 part-structure of mirror support also protrudes into U-type groove 44 and is arranged on part switching mirror support 3
There are three through-hole, it is provided with linear bearing 31 in two of them through-hole and runs through respectively for two linear guides 43, and it is another logical
Hole is provided with feed screw nut 32 and the cooperation of screw rod 42 in being, and screw rod 42 and two opposed inner walls of U-type groove 44 are rotatably connected,
Stepper motor 41 is located at the outside of U-type groove 44.
Further, linear guide 43 and screw rod 42 are respectively positioned on the same side of switching mirror 2, thus mounting rack overall structure
Positioned at the wherein side of switching mirror 2, it can be convenient installation of the stepper motor 41 on mounting rack and fix.Thus switch mirror support
3 mainly include two parts, and a portion is annular, and for the switching installation positioning of mirror 2, another part is mounting base, the peace
Dress seat protrudes into the U-type groove 44 of mounting rack, and screw rod 42 and linear guide 43 both pass through the mounting base, and mounting base is plate structure,
Two parts of switching mirror support 3 are an integral molding structure.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of big small field of view switching mechanism of airborne coaxial optical system, including switching mechanism support and switching mirror, feature
It is: further includes switching mirror support and can control the switching mirror support mobile relative to the switching mechanism support relative rectilinear
Driving assembly, the switching mirror installs on the switching mirror support, and the driving component includes stepper motor and by institute
The screw rod that stepper motor drives rotation is stated, the screw rod is threadedly coupled with the switching mirror support, the screw rod and the stepping
Motor is installed on mounting rack, and the mounting rack is detachably installed on the switching mechanism support.
2. the airborne big small field of view switching mechanism of coaxial optical system as described in claim 1, it is characterised in that: the driving group
Part further includes installing in the linear guide on the mounting rack, and the switching mirror support is slidably connected with the linear guide, and
The length extending direction of the linear guide and the length extending direction of the screw rod are identical.
3. the airborne big small field of view switching mechanism of coaxial optical system as claimed in claim 2, it is characterised in that: the straight line is led
Bar is two, and the screw rod is located between two linear guides.
4. the airborne big small field of view switching mechanism of coaxial optical system as claimed in claim 2, it is characterised in that: the straight line is led
It is connected between bar and the switching mirror support by linear bearing.
5. the airborne big small field of view switching mechanism of coaxial optical system as claimed in claim 2, it is characterised in that: the straight line is led
Bar and the screw rod are respectively positioned on the same side of the switching mirror.
6. the airborne big small field of view switching mechanism of coaxial optical system as described in claim 1, it is characterised in that: the screw rod is logical
Feed screw nut is crossed to be threadedly coupled with the switching mirror support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910462210.5A CN110275266A (en) | 2019-05-30 | 2019-05-30 | The airborne big small field of view switching mechanism of coaxial optical system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910462210.5A CN110275266A (en) | 2019-05-30 | 2019-05-30 | The airborne big small field of view switching mechanism of coaxial optical system |
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| CN110275266A true CN110275266A (en) | 2019-09-24 |
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| CN201910462210.5A Pending CN110275266A (en) | 2019-05-30 | 2019-05-30 | The airborne big small field of view switching mechanism of coaxial optical system |
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| CN202421618U (en) * | 2011-12-17 | 2012-09-05 | 中国航空工业集团公司洛阳电光设备研究所 | Infrared imaging system capable of switching multiple view fields |
| CN102967935A (en) * | 2012-11-06 | 2013-03-13 | 中国航空工业集团公司洛阳电光设备研究所 | Multi-view-field infrared optical system and radial inserting type multi-view-field switching device thereof |
| CN103616897A (en) * | 2013-11-27 | 2014-03-05 | 山东神戎电子股份有限公司 | Intelligent control system and method for double-field of view thermal imager |
| CN103913419A (en) * | 2014-03-20 | 2014-07-09 | 中国科学院遥感与数字地球研究所 | Double-optical path switching imaging spectral system |
| CN103994826A (en) * | 2014-05-26 | 2014-08-20 | 山东神戎电子股份有限公司 | Non-refrigeration thermal infrared imager capable of switching view fields |
| CN205301680U (en) * | 2015-12-01 | 2016-06-08 | 中国航空工业集团公司洛阳电光设备研究所 | Visual field lens unit and infrared system becomes times mechanism thereof |
| CN106443953A (en) * | 2016-12-09 | 2017-02-22 | 中国航空工业集团公司洛阳电光设备研究所 | Lens switching mechanism in multi-purpose view field |
| CN207704112U (en) * | 2017-12-28 | 2018-08-07 | 山东神戎电子股份有限公司 | A kind of telephoto lens with visual field handoff functionality |
| CN109581614A (en) * | 2018-11-13 | 2019-04-05 | 中国航空工业集团公司洛阳电光设备研究所 | A kind of axially adjustable visual field switching mechanism of portable |
-
2019
- 2019-05-30 CN CN201910462210.5A patent/CN110275266A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202421618U (en) * | 2011-12-17 | 2012-09-05 | 中国航空工业集团公司洛阳电光设备研究所 | Infrared imaging system capable of switching multiple view fields |
| CN102967935A (en) * | 2012-11-06 | 2013-03-13 | 中国航空工业集团公司洛阳电光设备研究所 | Multi-view-field infrared optical system and radial inserting type multi-view-field switching device thereof |
| CN103616897A (en) * | 2013-11-27 | 2014-03-05 | 山东神戎电子股份有限公司 | Intelligent control system and method for double-field of view thermal imager |
| CN103913419A (en) * | 2014-03-20 | 2014-07-09 | 中国科学院遥感与数字地球研究所 | Double-optical path switching imaging spectral system |
| CN103994826A (en) * | 2014-05-26 | 2014-08-20 | 山东神戎电子股份有限公司 | Non-refrigeration thermal infrared imager capable of switching view fields |
| CN205301680U (en) * | 2015-12-01 | 2016-06-08 | 中国航空工业集团公司洛阳电光设备研究所 | Visual field lens unit and infrared system becomes times mechanism thereof |
| CN106443953A (en) * | 2016-12-09 | 2017-02-22 | 中国航空工业集团公司洛阳电光设备研究所 | Lens switching mechanism in multi-purpose view field |
| CN207704112U (en) * | 2017-12-28 | 2018-08-07 | 山东神戎电子股份有限公司 | A kind of telephoto lens with visual field handoff functionality |
| CN109581614A (en) * | 2018-11-13 | 2019-04-05 | 中国航空工业集团公司洛阳电光设备研究所 | A kind of axially adjustable visual field switching mechanism of portable |
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Application publication date: 20190924 |
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| RJ01 | Rejection of invention patent application after publication |