CN107678119A - A kind of device for the more visual field zoom Shot changes of optical system three-stable state - Google Patents
A kind of device for the more visual field zoom Shot changes of optical system three-stable state Download PDFInfo
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- CN107678119A CN107678119A CN201710790978.6A CN201710790978A CN107678119A CN 107678119 A CN107678119 A CN 107678119A CN 201710790978 A CN201710790978 A CN 201710790978A CN 107678119 A CN107678119 A CN 107678119A
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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
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B15/00—Optical objectives with means for varying the magnification
- G02B15/02—Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective
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- Optics & Photonics (AREA)
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Abstract
The present invention relates to a kind of device for the more visual field zoom Shot changes of optical system three-stable state, switches microscope group comprising three mutual independent rotations；Power source is used as by a set of rotary drive motor, power output is carried out through drive shaft, is responsible for the position rotation of microscope group；By three-stable state electromagnetic switching device, free switching of the power between three different microscope groups is realized；The locking of microscope group operating position is carried out by permanent magnetism stopping means.This more visual field zoom mechanism passes through three-stable state electromagnetic switching device, it is that three the independent of microscope group can be achieved to switch by a set of motor, it is compact-sized, it is in light weight, pass through the combination of different microscope groups work eyeglass, big zoom ratio, the visual field free switching of more gears are realized, substantially increases the adaptability and observing effect of optical system.
Description
Technical field
The invention belongs to technical field of optical instrument, is related to one kind and is cut for the more visual field zoom camera lenses of optical system three-stable state
The device changed, for realizing the free switching between multiple different enlargement ratio optical field of view, 8 grades of visual fields can be at most provided and become
Times.
Background technology
Investigated in high-resolution visible ray in the military-civil detection such as device, thermal camera, imaging optical system, it may be necessary to
The different visual field such as wide, middle or small, extra small is provided simultaneously with, and the difference of target is switched in real time according to the observation, this typically passes through
Visual field zoom mechanism realizes.Conventional visual field zoom technology mainly includes：Linear two kinds of moulds of continuous zoom and suitching type zoom
Formula.
Linear continuous zoom is moved in the optical path by zoom microscope group, changes the focal length of optical system, so as to realize
Zoom, because microscope group has certain range of movement, structure is taken up too much space, while is also had comprising more than component and complicated, complete
Into the time required for zoom it is longer the shortcomings of.
Suitching type visual field zoom is to cut Zoom lens group in former optical system, forms a new optical field of view, tool
There is switching time is short, equipment adjustment is simple, bulk is big between optical axis direction compact dimensions, lens constituent element, transmitance is high etc.
Feature, but the limitation of zoom camera lens number is constrained to, variable field of view number is less, generally only has wide, narrow two visual fields.
The content of the invention
Technical problems to be solved
In order to avoid the shortcomings of the prior art, the present invention proposes that one kind is used for the more visual field zooms of optical system three-stable state
The device of Shot change, mainly for visual field switch demand optical system, such as visible light detection device, infrared reconnaissance with
Track system etc., it is possible to achieve the conversion between most 8 different visual fields such as wide, middle or small, extra small.
Technical scheme
A kind of device for the more visual field zoom Shot changes of optical system three-stable state, it is characterised in that：Including base 1,
Microscope group support 2, first drives bracing strut 3, second to drive bracing strut 4, motor 5, drive shaft 6, three-stable state electromagnetism switching dress
Put the 7, first microscope group 8, the second microscope group 9, the 3rd microscope group 10 and two permanent magnetism stopping means 11；Microscope group support 2 is fixed on base 1
On bottom plate, the first driving driving bracing strut 4 of bracing strut 3 and second is separately fixed at the both sides of microscope group support 2, and drive shaft 6 is fixed
Between two drive bracing strut, three-stable state electromagnetic switching device 7 is enclosed on drive shaft 6；The motor 501 of motor 5 passes through tooth
Wheel 502 is connected with drive shaft 6；First microscope group 8, the second microscope group 9, the 3rd microscope group 10 are enclosed on three-stable state electromagnetism by square key and switched
On device 7, and three microscope groups need to be fixed on different positions and angle according to combination；In the bottom plate and upper bracket of base 1
Corresponding position is respectively provided with a permanent magnetism stopping means.
Described microscope group support 2 includes support 201, the first fixing axle 202, the second fixing axle 203 and trim ring 204；First
The fixing axle 203 of fixing axle 202 and second is each passed through the axis hole on support 201, and is axially fastened by trim ring 204.
Described drive shaft 6 includes the first semiaxis 601, fixed iron core 602, the second semiaxis 603, gear 604 and square key
605；The both ends of fixed iron core 602 are threaded, and are coordinated by screw thread and the first semiaxis 601 and the second semiaxis 603 link together,
Gear 604 is fixed on the first semiaxis 601, is engaged with gear 502, and square key 605 is located in the square groove of the second semiaxis 603.
Three-stable state electromagnetic switching device 7 described in described drive shaft 6 includes stable state and maintains spring 701, electromagnetic activation dress
Put 702 and ratchet axle 703；For electromagnetic activation device 702 with ratchet axle 703 to be fixedly connected with one heart, both ends are against two surely respectively
State is maintained on spring 701.
Described electromagnetic activation device 702 include housing 7021, first return coil 7022, second return coil 7023,
Move to left coil 7024, move to right coil 7025, permanent magnet 7026 and magnetic inductive block 7027；All coils, permanent magnet 7025 and magnetic inductive block
7027 are concentrically mounted to inside housing 7021.
The first described microscope group 8 includes support 801, the first object lens 802, the second object lens 803, drive block 804, tail balancing weight
805 and spacing unshakable in one's determination 806；First object lens 802 and the second object lens 803 are individually fixed in two camera apertures of support 801, afterbody
Counterweight 805 is located at one end of relative two camera apertures of support 801, and spacing unshakable in one's determination 806 are located at the side of 801 two camera apertures of support
Side, drive block 804 are located at the axis hole of support 801.
The second described microscope group 9 includes support 901, the 3rd object lens 902, drive block 903, tail balancing weight 904 and limiting iron
The heart 905；3rd object lens 902 are fixed in the camera aperture of support 901, and tail balancing weight 904 is located at one of support 901 with respect to camera aperture
End, spacing unshakable in one's determination 905 are located at the side of the camera aperture of support 901, and drive block 903 is located at the axis hole of support 901.
The 3rd described microscope group 10 includes support 101, the first eyepiece 102, the second eyepiece 103, drive block 104, afterbody and matched somebody with somebody
Weigh 105 and spacing unshakable in one's determination 106；First eyepiece 102 and the second eyepiece 103 are individually fixed in two camera apertures of support 101, tail
Portion's counterweight 105 is located at one end of relative two camera apertures of support 101, and spacing unshakable in one's determination 106 are located at the side of 101 two camera apertures of support
Side, drive block 104 are located at the axis hole of support 101.
Described permanent magnetism stopping means 11 is that permanent magnet 112 is fixed in housing 111 to need spacing position.
The permanent magnet 112 passes through gluing fixation.
By motor 5, drive shaft 6 and three-stable state electromagnetic switching device 7, the independent switching of different microscope groups can be achieved；
Microscope group is locked in operating position by permanent magnetism stopping means 11；By the combination of three microscope group difference eyeglasses, 8 are at most can be achieved
Keep off visual field zoom.
Beneficial effect
A kind of device for the more visual field zoom Shot changes of optical system three-stable state proposed by the present invention, comprising three mutually
Mutually independent rotation switching microscope group；Power source is used as by a set of rotary drive motor, power output is carried out through drive shaft, is responsible for
The position rotation of microscope group；By three-stable state electromagnetic switching device, free switching of the power between three different microscope groups is realized；It is logical
Cross the locking that permanent magnetism stopping means carries out microscope group operating position.This more visual field zoom mechanism by three-stable state electromagnetic switching device,
It is that three the independent of microscope group can be achieved to switch by a set of motor, it is compact-sized, it is in light weight, pass through different microscope groups work eyeglass
Combination, realize big zoom ratio, the visual field free switching of more gears, substantially increase optical system adaptability and observation imitate
Fruit.
Brief description of the drawings
Fig. 1 is the structure composition figure of the more visual field zoom mechanisms of three-stable state of the present invention；
Fig. 2 is the blast composition figure of the more visual field zoom mechanisms of three-stable state of the present invention；
Fig. 3 is the more visual field zoom mechanism section view composition figures of three-stable state of the present invention；
Fig. 4 is the composition figure of the first microscope group；
Fig. 5 is the composition figure of the second microscope group；
Fig. 6 is the composition figure of the 3rd microscope group；
Fig. 7 is the composition figure of electromagnetic activation device；
Fig. 8 is the composition figure of permanent magnetism stopping means；
In figure, 1- bases, 2- microscope group supports, the driving bracing struts of 3- first, the driving bracing struts of 4- second, 5- motors,
6- drive shafts, 7- three-stable state electromagnetic switching devices, the microscope groups of 8- first, the microscope groups of 9- second, the microscope groups of 10- the 3rd, the spacing dress of 11- permanent magnetism
Put, 201- supports, the fixing axles of 202- first, the fixing axles of 203- second, 204- trim rings, 501- motors, 502- gears, 601- first
Semiaxis, 602- fixed iron cores, the semiaxis of 603- second, 604- gears, 605- square keys, 701- stable states maintain spring, and 702- electromagnetism is made
Dynamic device, 703- ratchet axles, 7021- housings, 7022- first return coil, and 7023- second returns coil, and 7024- moves to left line
Circle, 7025- move to right coil, 7026- permanent magnets, 7027- magnetic inductive blocks, 801- supports, the object lens of 802- first, the object lens of 803- second,
804- drive blocks, 805- tail balancing weights, the spacing iron cores of 806-, 901- supports, the object lens of 902- the 3rd, 903- drive blocks, 904- tails
Portion's counterweight, the spacing iron cores of 905-, 101- supports, the eyepieces of 102- first, the eyepieces of 103- second, 104- drive blocks, 105- afterbodys are matched somebody with somebody
Weight, the spacing iron cores of 106-, 111- housings, 112- permanent magnets.
Embodiment
In conjunction with embodiment, accompanying drawing, the invention will be further described：
The more visual field zoom mechanisms of three-stable state of the present embodiment, including base 1, microscope group support 2, first driving bracing strut 3, the
Two driving bracing struts 4, motor 5, drive shaft 6, three-stable state electromagnetic switching device 7, the first microscope group 8, the second microscope group the 9, the 3rd
Microscope group 10 and permanent magnetism stopping means 11.
Base 1 is the main support part of visual field zoom mechanism, while zoom mechanism is fixed on whole light also by base 1
In system, it is therefore desirable to which there is higher rigidity and intensity.Microscope group support 2, first drives the drive shaft branch of bracing strut 3 and second
Frame 4 is anchored on the relevant position of base 1 by screw.
Microscope group support 2 is made up of support 201, the first fixing axle 202, the second fixing axle 203 and trim ring 204, and first fixes
The fixing axle 203 of axle 202 and second is each passed through the axis hole on support 201, and is axially fastened by trim ring 204.First microscope group
8th, the second microscope group 9 and the 3rd microscope group 10 can rotate around the first fixing axle 202 and the second fixing axle 203.
Drive shaft hole and motor axis hole are carried on first driving bracing strut 3, is mainly used in left end and the drive of fixed drive axle 6
Motor 5 is moved, drive shaft hole is carried on the second driving bracing strut 4, is mainly used in the right-hand member of fixed drive axle 6.During assembling, it can adjust
Whole first driving bracing strut 3 and second drives the relative position of bracing strut 4, ensures that drive shaft 6 can smooth out rotation.
Motor 5 is made up of motor 501 and gear 502, and motor 501 is rotating servo controlled motor, carries angle volume
Code device, it is possible to achieve compared with the angular turn and data output of precision, motor 501 is installed on the first driving by the screwed hole carried
On bracing strut 3.Gear 502 is fixed on the rotating shaft of motor 501, is engaged with gear 604.Because the output of motor 501 has already passed through
The deceleration of motor own gear case, therefore gear 502 and 604 not there are certain requirements in speed reducing ratio, be mainly used in changing motion
Direction, realize the compact installation of motor 501.
Drive shaft 6 is made up of the first semiaxis 601, fixed iron core 602, the second semiaxis 603, gear 604 and square key 605, and two
End is each passed through the axis hole of the first driving bracing strut 3 and the second driving bracing strut 4, and can be rotated around axis hole.Fixed iron core 602
Both ends are threaded, and the first semiaxis 601 and the corresponding end of the second semiaxis 603 are threaded hole, are coordinated by screw thread three is concentric
An axle is joined together to form, gear 604 is fixed on the first semiaxis 601, engaged with gear 502, by the rotation of motor 5
It is transferred in drive shaft 6, the half of square key 605 is located in the axial square groove of the second semiaxis 603, and second half is located at ratchet axle 703
In axial square groove, the rotation of drive shaft 6 is transferred on ratchet axle 703, while ensures that ratchet axle 703 can be along drive shaft 6 axially
Slidably.
Three-stable state electromagnetic switching device 7 is nested in outside drive shaft 6, and spring 701, electromagnetic activation device are maintained by stable state
702 and ratchet axle 703 form.For electromagnetic activation device 702 with ratchet axle 703 to be fixedly connected with one heart, both ends are against two respectively
Stable state is maintained on spring 701, and two stable states maintain the other end of spring 701 to be against the first driving bracing strut 3 and the second drive respectively
On moving axis support 4.Electromagnetic activation device 702 returns coil 7022, second to return coil 7023, a left side by housing 7021, first again
Coil 7024 is moved, coil 7025, permanent magnet 7025 and magnetic inductive block 7027 is moved to right and forms, all coils, permanent magnet 7025 and magnetic conduction
Block 7027 is concentrically mounted to inside housing 7021.First returns coil 7022 to be nested in the outside for moving to right coil 7025, and second
Return coil 7023 to be nested in move to left outside coil 7024, first returns coil 7022 and second to return the line group of coil 7023 to twine
Identical around direction, move to left coil 7024 needs conversely with the line group winding direction for moving to right coil 7025.
First microscope group 8, the second microscope group 9 and the 3rd microscope group 10 are installed on microscope group support 2, can be around axle in certain angle scope
It is interior freely to rotate.First microscope group 8 is by support 801, the first object lens 802, the second object lens 803, drive block 804, the and of tail balancing weight 805
Spacing 806 composition unshakable in one's determination, the first object lens 802 and the second object lens 803 are individually fixed in the camera aperture of support 801, tail balancing weight
805 are used to balance the first object lens 802 and the weight of the second object lens 803 and structure, microscope group center of gravity is located on rotation axis.Second
Microscope group 9 is made up of support 901, the 3rd object lens 902, drive block 903, tail balancing weight 904 and spacing unshakable in one's determination 905, the 3rd object lens 902
It is fixed in the camera aperture of support 901, tail balancing weight 904 is used for the weight for balancing the 3rd object lens 902 and structure, makes microscope group center of gravity
On rotation axis.3rd microscope group 10 is by support 101, the first eyepiece 102, the second eyepiece 103, drive block 104, tail balancing weight
105 and spacing unshakable in one's determination 106 are formed, and the first eyepiece 102 and the second eyepiece 103 are individually fixed in the camera aperture of support 101, afterbody
Counterweight 105 is used for the weight for balancing the first eyepiece 102, the second eyepiece 103 and structure, microscope group center of gravity is located on rotation axis.
Permanent magnetism stopping means 11 is distributed in the both sides of three microscope groups, is made up of housing 111, permanent magnet 112, on housing 111
It is threaded, permanent magnetism stopping means 11 is fixed on base 1, permanent magnet 112 is bonded and fixed to housing 111 by epoxy glue etc.
It is interior.
The angle of first object lens 802, the center of the second object lens 803 and pivot in first microscope group 8, in the 3rd microscope group 11,
The angle of first eyepiece 102, the center of the second eyepiece 103 and pivot, and on ratchet axle 703 two adjacent ratchets angle it is equal
Need it is identical, to ensure under different rotary angle, ratchet and groove it is accurate engage and eyeglass it is accurate in place.Initial assembling
When, the angle of three microscope groups is not strict with.
The purpose of the present invention is reached by following measure：A kind of more visual field zoom mechanisms of three-stable state, including base, mirror
Pack support, the first driving bracing strut, the second driving bracing strut, motor, drive shaft, three-stable state electromagnetic switching device, first
Microscope group, the second microscope group, the 3rd microscope group and permanent magnetism stopping means.Wherein, base be whole device main support part, same to time-varying
Times mechanism is fixed in whole optical system by base.Microscope group support, the first driving bracing strut and the second driving bracing strut are equal
It is anchored on by screw on base.Microscope group support includes support, the first fixing axle, the second fixing axle and trim ring, the first fixing axle
The axis hole being each passed through with the second fixing axle on support, axial limiting fastening is carried out by trim ring.Carried on first driving bracing strut
Drive shaft hole and motor axis hole, it is mainly used in the left end and motor of fixed drive axle, carries and drive on the second driving bracing strut
Shaft hole, it is mainly used in the right-hand member of fixed drive axle.Motor is made up of motor and gear, and motor is rotating servo control electricity
Machine, carry angular encoder, it is possible to achieve the angle compared with precision is exported, and gear is fixed on motor shaft.Drive shaft is by the first half
Axle, fixed iron core, the second semiaxis, gear and square key composition, fixed iron core both ends are threaded, the first semiaxis and the second semiaxis pair
It should hold and be threaded hole, three be linked together with one heart by screw thread pair, gear is fixed on the shaft end of the first semiaxis, with driving
The gear engagement of motor.Three-stable state electromagnetic switching device maintains spring, electromagnetic activation device and ratchet axle to form by stable state, electromagnetism
With ratchet axle to be fixedly connected with one heart, both ends are against two stable states and maintained on spring acting device respectively, the switching of three-stable state electromagnetism
Device is nested in outside drive shaft, can be slided within the specific limits vertically, and the square key of drive shaft is located at the second semiaxis and ratchet
Between axle.First microscope group, the second microscope group and the 3rd microscope group are installed on microscope group support, can around axle in the range of certain angle freely
Rotate, the first microscope group is made up of support, the first object lens, the second object lens, drive block, tail balancing weight and spacing iron core, the second microscope group
It is made up of support, the 3rd object lens, drive block, tail balancing weight and spacing iron core, the 3rd microscope group is by support, the first eyepiece, the second mesh
Mirror, drive block, tail balancing weight and spacing composition unshakable in one's determination.Permanent magnetism stopping means is distributed in the both sides of three microscope groups, by housing and forever
Magnet forms, and is threaded, permanent magnetism stopping means is fixed on base, permanent magnet is adhesively fixed by epoxy glue etc. on housing
In in housing.
The present invention realizes that the cardinal principle of more visual field switchings is：First microscope group, the second microscope group and the 3rd microscope group can be around mirrors
Pack support rotates within the specific limits, and groundwork position is upper and lower spacing place.Such as when the first microscope group, the second microscope group and
When three microscope groups are in lower limit, the first object lens and the first eyepiece are in working light path, and certain zoom ratio can be achieved.Now such as
Fruit individually rotates the second microscope group to upper limit, and the 3rd object lens will also cut working light path, will form a new optical field of view.
Because the first microscope group, the second microscope group and the 3rd microscope group there are two effective operating positions, pass through the arrangement group between different eyeglasses
Close, can most 8 different optical field of view.
In order to ensure the independent rotation of three microscope groups, the rotary motion of motor can only be transferred to one in synchronization
Microscope group, this is mainly realized by three-stable state electromagnetic switching device.Three-stable state electromagnetic switching device maintains spring, electromagnetism to make by stable state
Dynamic device and ratchet axle composition, wherein electromagnetic activation device return coil by housing, first again, second return coil, move to left line
Enclose, move to right coil, permanent magnet and magnetic inductive block composition.
Initial time, two identical stable states maintain spring all to carry certain decrement, and fixed iron core is positioned at forever
The centre position of magnet, because the air gap of both sides is equal, the magnetic that electromagnetic activation device is subject to makes a concerted effort to be zero, even if coil blackout,
In the presence of two springs, electromagnetic activation device is stable at middle stable position.Now, the ratchet on ratchet axle and the second mirror
Engagement on group drive block, power can be transferred in the second microscope group via drive shaft, square key, ratchet axle.
Initial electromagnetic acting device is in an intermediate position, and now to coil electricity is moved to right, permanent magnet left magnetic field is enhanced,
Electromagnetic activation device can gradually be increased by electromagnetic force to the right, and finally be more than the increment value of counter spring force, and now electromagnetism is made
Dynamic device will move right, even if now cutting off the electricity supply, because magnetic field caused by permanent magnet passes through this where fixed iron core
Low magnetic resistance impedance between the magnetic pole of partial circuit causes electromagnetic activation device by very big permanent magnetism confining force, and its power is more than bullet
The reverse elastic force of spring, such electromagnetic activation device can are in right positions in the case where electric current is not by moving to right coil.
Now, the engagement on the ratchet on ratchet axle and the first microscope group drive block, and divide with the groove on the second microscope group drive block
From power can be transferred in the first microscope group via drive shaft, square key, ratchet axle.
Initial electromagnetic acting device is in an intermediate position, and now to coil electricity is moved to left, permanent magnet right magnetic field is enhanced,
Electromagnetic activation device can gradually be increased by electromagnetic force to the left, and finally be more than the increment value of counter spring force, and now electromagnetism is made
Dynamic device will be moved to the left, even if now cutting off the electricity supply, because magnetic field caused by permanent magnet passes through this where fixed iron core
Low magnetic resistance impedance between the magnetic pole of partial circuit causes electromagnetic activation device by very big permanent magnetism confining force, and its power is more than bullet
The reverse elastic force of spring, such electromagnetic activation device can are in leftward position in the case where electric current is not by moving to left coil.
Now, the engagement on the ratchet on ratchet axle and the 3rd microscope group drive block, and divide with the groove on the second microscope group drive block
From power can be transferred in the 3rd microscope group via drive shaft, square key, ratchet axle.
Initial electromagnetic acting device is in left side or right positions, now returns coil and 2 to be powered to first, permanent magnet
Magnetic field is weakened, and the electromagnetic force that electromagnetic activation device is subject to can be gradually reduced, and the finally less than increment value of counter spring force, now
Electromagnetic activation device is mobile by centre, and according to analysis above, even if coil blackout, in the presence of two springs, electromagnetism is made
Dynamic device is stable at middle stable position.Now, the engagement on the ratchet on ratchet axle and the second microscope group drive block, and with
Groove separation in first microscope group or the 3rd microscope group drive block.
Left, center, right diverse location is in by the way that electromagnetic activation device to corresponding coil electricity, can be controlled, and and
When after coil breakage, what electromagnetic activation device can also be stablized be in current location, therefore have three stable states.
When the ratchet on ratchet axle separates with the groove on microscope group drive block, microscope group can not be driven motor again and block up
The effect of torque, it is therefore desirable to which microscope group is locked in by lower work position using certain measure.In each microscope group both sides band
Limited location is unshakable in one's determination, and corresponding permanent magnetism stopping means is distributed with, will be by forever when spacing close permanent magnetism stopping means unshakable in one's determination
The attraction of magnet, so as to which microscope group is fixed on into operating position.Because microscope group designs by dynamic balancing in itself, with accordingly matching somebody with somebody
Weight, center of gravity is positioned at pivot, therefore even if under vibrating conditions, the unbalanced moments that microscope group is subject to is also smaller, permanent magnetism
The attraction of body can ensure that microscope group does not release.And the torsional moment of motor is larger, permanent magnetism stopping means can be overcome
Attract, realize the change of microscope group position.The height of permanent magnetism stopping means can be adjusted by screw thread, therefore can be protected
Card microscope group has higher in-placing precision.
Claims (10)
- A kind of 1. device for the more visual field zoom Shot changes of optical system three-stable state, it is characterised in that：Including base (1), Microscope group support (2), the first driving bracing strut (3), the second driving bracing strut (4), motor (5), drive shaft (6), three-stable state Electromagnetic switching device (7), the first microscope group (8), the second microscope group (9), the 3rd microscope group (10) and two permanent magnetism stopping means (11)；Mirror Pack support (2) is fixed on the bottom plate of base (1), and the first driving bracing strut (3) and the second driving bracing strut (4) are separately fixed at The both sides of microscope group support (2), drive shaft (6) are fixed between two driving bracing struts, and three-stable state electromagnetic switching device (7) is enclosed on Drive shaft (6)；The motor (501) of motor (5) is connected by gear (502) with drive shaft (6)；First microscope group (8), Two microscope groups (9), the 3rd microscope group (10) are enclosed on three-stable state electromagnetic switching device (7) by square key, and three microscope groups are according to combination Need to be fixed on different positions and angle；A permanent magnetism limit is respectively provided with the bottom plate of base (1) and the corresponding position of upper bracket Position device.
- 2. it is used for the device of the more visual field zoom Shot changes of optical system three-stable state according to claim 1, it is characterised in that： Described microscope group support (2) includes support (201), the first fixing axle (202), the second fixing axle (203) and trim ring (204)；The One fixing axle (202) and the second fixing axle (203) are each passed through the axis hole on support (201), and are carried out axially by trim ring (204) Fastening.
- 3. it is used for the device of the more visual field zoom Shot changes of optical system three-stable state according to claim 1, it is characterised in that： Described drive shaft (6) includes the first semiaxis (601), fixed iron core (602), the second semiaxis (603), gear (604) and square key (605)；Fixed iron core (602) both ends are threaded, and are coordinated by screw thread by the first semiaxis (601) and the second semiaxis (603) even It is connected together, gear (604) is fixed on the first semiaxis (601), is engaged with gear (502), and square key (605) is located at the second semiaxis (603) in square groove.
- 4. it is used for the device of the more visual field zoom Shot changes of optical system three-stable state according to claim 1, it is characterised in that： Three-stable state electromagnetic switching device (7) described in described drive shaft (6) includes stable state and maintains spring (701), electromagnetic activation device And ratchet axle (703) (702)；With ratchet axle (703) to be fixedly connected with one heart, both ends are against electromagnetic activation device (702) respectively Two stable states are maintained on spring (701).
- 5. it is used for the device of the more visual field zoom Shot changes of optical system three-stable state according to claim 4, it is characterised in that： Described electromagnetic activation device (702) include housing (7021), first return coil (7022), second return coil (7023), Move to left coil (7024), move to right coil (7025), permanent magnet (7026) and magnetic inductive block (7027)；All coils, permanent magnet (7025) and magnetic inductive block (7027) is concentrically mounted to housing (7021) inside.
- 6. it is used for the device of the more visual field zoom Shot changes of optical system three-stable state according to claim 1, it is characterised in that： Described the first microscope group (8) include support (801), the first object lens (802), the second object lens (803),Drive block (804), tail balancing weight (805) and spacing iron core (806)；First object lens (802) and the second object lens (803) are respectively It is fixed in two camera apertures of support (801), tail balancing weight (805) is located at one end of relative two camera apertures of support (801), Spacing iron core (806) is located at the side of (801) two camera apertures of support, and drive block (804) is located at the axis hole of support (801).
- 7. it is used for the device of the more visual field zoom Shot changes of optical system three-stable state according to claim 1, it is characterised in that： Described the second microscope group (9) includes support (901), the 3rd object lens (902), drive block (903), tail balancing weight (904) and spacing (905) unshakable in one's determination；3rd object lens (902) are fixed in the camera aperture of support (901), and tail balancing weight (904) is located at support (901) phase To one end of camera aperture, spacing iron core (905) is located at the side of support (901) camera aperture, and drive block (903) is located at support (901) axis hole.
- 8. it is used for the device of the more visual field zoom Shot changes of optical system three-stable state according to claim 1, it is characterised in that： The 3rd described microscope group (10) includes support (101), the first eyepiece (102), the second eyepiece (103), drive block (104), afterbody Counterweight (105) and spacing iron core (106)；First eyepiece (102) and the second eyepiece (103) are individually fixed in the two of support (101) In individual camera aperture, tail balancing weight (105) is located at one end of relative two camera apertures of support (101), and spacing iron core (106) is positioned at branch The side of (101) two camera apertures of frame, drive block (104) are located at the axis hole of support (101).
- 9. it is used for the device of the more visual field zoom Shot changes of optical system three-stable state according to claim 1, it is characterised in that： Described permanent magnetism stopping means (11) is that permanent magnet (112) is fixed in housing (111) to need spacing position.
- 10. being used for the device of the more visual field zoom Shot changes of optical system three-stable state according to claim 9, its feature exists In：The permanent magnet (112) passes through gluing fixation.
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| CN201710790978.6A CN107678119B (en) | 2017-09-05 | 2017-09-05 | Device for switching tristable multi-view-field zoom lens of optical system |
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Cited By (5)
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| CN109471255A (en) * | 2018-11-26 | 2019-03-15 | 中国工程物理研究院应用电子学研究所 | A kind of electromagnetic drive optical attenuator switching device and switching system |
| CN110501797A (en) * | 2019-09-20 | 2019-11-26 | 合肥英睿系统技术有限公司 | A kind of infrared lens device that can detect identification visual field automatically |
| CN111796382A (en) * | 2020-07-21 | 2020-10-20 | 中国科学院长春光学精密机械与物理研究所 | Optical system switching mechanism |
| CN111796390A (en) * | 2020-06-09 | 2020-10-20 | 中国科学院西安光学精密机械研究所 | Three-view-field switching mechanism for optical equipment |
| CN117111257A (en) * | 2023-10-20 | 2023-11-24 | 南通蓬盛机械有限公司 | Infrared optical system with field-of-view switching mechanism |
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| CN109471255A (en) * | 2018-11-26 | 2019-03-15 | 中国工程物理研究院应用电子学研究所 | A kind of electromagnetic drive optical attenuator switching device and switching system |
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| CN111796390A (en) * | 2020-06-09 | 2020-10-20 | 中国科学院西安光学精密机械研究所 | Three-view-field switching mechanism for optical equipment |
| CN111796390B (en) * | 2020-06-09 | 2021-05-18 | 中国科学院西安光学精密机械研究所 | Three-view-field switching mechanism for optical equipment |
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| CN117111257A (en) * | 2023-10-20 | 2023-11-24 | 南通蓬盛机械有限公司 | Infrared optical system with field-of-view switching mechanism |
| CN117111257B (en) * | 2023-10-20 | 2023-12-26 | 南通蓬盛机械有限公司 | Infrared optical system with field-of-view switching mechanism |
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