CN109725399A - Focusing test reflecting mirror switching device and large area array CMOS aerial camera system - Google Patents
Focusing test reflecting mirror switching device and large area array CMOS aerial camera system Download PDFInfo
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- CN109725399A CN109725399A CN201811540470.1A CN201811540470A CN109725399A CN 109725399 A CN109725399 A CN 109725399A CN 201811540470 A CN201811540470 A CN 201811540470A CN 109725399 A CN109725399 A CN 109725399A
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Abstract
The present invention relates to aviation optical remote sensings to equip focusing test technical field, and in particular to a kind of focusing test reflecting mirror switching device and large area array CMOS aerial camera system.Switching device of the invention includes support plate, linear guide, fixed mechanism, rack gear, driving mechanism and positioning mechanism.Camera system of the invention includes cmos detector, focusing test grating and focusing test reflecting mirror.Linear guide and fixed mechanism are set to support plate frame portion, the rack gear and positioning mechanism that are used to be driven are set to support plate cavern part by focusing test reflecting mirror switching device of the invention, structure is simple, compact, positioning accuracy is high, it is small in size, it is light-weight, entire switching device processes, is easy to assembly, is conducive to promote.Camera system of the invention switches focusing test reflecting mirror being guided incident ray to the favorite places of the cmos detector and guide incident ray between the focusing test position of the focusing test grating, the light energy being incident in image planes will not be reduced in imaging, camera imaging quality is high.
Description
Technical field
The present invention relates to aviation optical remote sensings to equip focusing test technical field, and in particular to a kind of focusing test reflecting mirror switching device
And large area array CMOS aerial camera system.
Background technique
In order to obtain HD image, the accuracy of aerial camera focal plane position becomes key.Aerial camera mostly uses light
Electric auto-collimation mode realizes focusing test.Refering to Figure 1, photoelectric auto-collimation focusing test principle are as follows: the light that point light source issues is by focusing test
Object space grating on grating illuminates, and object space grating is formed at photoelectric receiving device after being reflected by camera lens, scanning reflection mirror etc.
The picture of object space grating, slightly being swung by scanning reflection mirror makes the picture of object space grating form light with the image space grating on focusing test grating
Lock, the strong and weak variation that photoelectric receiving device senses light generate modulated signal, by analyze modulated signal size judge camera from
Jiao Liang finds optimum image plane position, realizes focusing test.It, can be by focusing test grating and detector all if the image planes size of camera allows
It is mounted in image planes.
With increasingly improving to big visual field, remote, inclination imaging demand, aerial camera selects large area array CMOS detection
Device.Since large area array cmos detector mechanical dimension is greater than image planes size, cause focusing test grating that can not be mounted in image planes.Therefore
It needs for focusing test grating to be mounted in the conjugate planes of image planes, and the light being incident in image planes is turned back onto focusing test grating.It adopts
Turning back for imaging optical path can be realized with Amici prism, and the light being incident in image planes can be divided into two-way by it, be transmitted to picture all the way
On face, another way is reflected on focusing test grating, but this method can reduce the light energy being incident in image planes, influence camera at
Image quality amount.
In consideration of it, overcoming the above defect in the prior art, a kind of new focusing test reflecting mirror switching device and big face are provided
Battle array CMOS aerial camera system becomes this field technical problem urgently to be resolved.
Summary of the invention
It is a kind of for large area array CMOS aerial camera it is an object of the invention in view of the above drawbacks of the prior art, provide
Focusing test reflecting mirror switching device and a kind of large area array CMOS aerial camera system.
The purpose of the present invention can be realized by technical measures below:
First aspect present invention provides a kind of focusing test reflecting mirror switching device, which includes:
Support plate, the support plate includes cavern part and the frame portion around the cavern part, the frame portion include
The first frame and the second frame being oppositely arranged；
Two linear guides of parallel interval setting, described two linear guides are respectively arranged on first frame and described
Second frame；
Fixed mechanism for installing focusing test reflecting mirror and being slidably matched with described two linear guides；
Set on the fixed mechanism and positioned at the rack gear of the cavern part, the rack gear is parallel with the linear guide to be set
It sets；
For driving the driving mechanism of the rack movement；And
Set on the positioning mechanism of the cavern part, the positioning mechanism includes set on the focusing test position of first scuncheon
Set switch and favorite places switch and the collision block set on the rack gear towards first frame side, the positioning mechanism
Be configured to when the collision block contacts the focusing test position switch or favorite places switch, trigger the focusing test position switch or
Favorite places switch operation.
Preferably, the driving mechanism includes: switch motor with output shaft, is set to second frame and for solid
The transition support of the fixed switch motor and be sheathed on the output shaft and with the rack gear backwards to the fixed mechanism one
Side meshed gears.
Preferably, second frame is formed with backwards to the side of the linear guide is used to support the switch motor
Supporting block.
Preferably, the fixed mechanism includes: frame adjusting pad, is set to the frame adjusting pad towards the support plate one
Two sliding blocks in face, set on the frame adjusting pad backwards to the mirror frame of the support plate one side and by the focusing test
Reflecting mirror is fixed on the pressing plate on the mirror frame, wherein two sliding blocks are slidably connected with two linear guides respectively.
Preferably, ball is equipped between the linear guide and the sliding block.
Preferably, the frame portion further includes the third frame and the 4th frame being oppositely arranged, the focusing test position switch
Close to the third frame, the favorite places are switched close to the 4th frame；The switching device further includes being set to described the
The focusing test position limit switch of three scuncheons, for when the collision block triggers the focusing test position switch and is positioned, with
The rack gear cooperation is to be fixed the rack gear.
Preferably, which further includes the favorite places limit switch set on the 4th scuncheon, for working as
When the collision block triggering favorite places switch is positioned, cooperate with the rack gear the rack gear to be fixed.
Preferably, the cavern part is rectangle.
Second aspect of the present invention provides a kind of large area array CMOS aerial camera system, which includes: that CMOS is visited
Survey device, focusing test grating and focusing test reflecting mirror, wherein the focusing test reflecting mirror, which can switch to, guides incident ray to the CMOS
The favorite places of detector and incident ray is guided to the focusing test position of the focusing test grating；
The camera system further include: above-mentioned switching device, for by the focusing test reflecting mirror in the favorite places and
Switch between the focusing test position.
Preferably, camera system further include: the scanning reflection mirror that is set gradually along the optical path of incident ray, for light
Camera lens, the first refrative mirror for being reflected light and the second folding for being reflected light that line is focused
Mirror.
Linear guide and fixed mechanism are set to support plate frame portion, will be used for by focusing test reflecting mirror switching device of the invention
The rack gear and positioning mechanism of transmission are set to support plate cavern part, and structure is simple, compact, and positioning accuracy is high, small in size, light-weight,
Entire switching device processes, is easy to assembly, is conducive to promote.Camera system of the invention draws focusing test reflecting mirror by incident ray
It is directed at the favorite places of the cmos detector and guides incident ray between the focusing test position of the focusing test grating and switch,
The light energy being incident in image planes will not be reduced in imaging, camera imaging quality is high.
Detailed description of the invention
Fig. 1 is aerial camera photoelectric auto-collimation focusing test schematic diagram in the prior art.
Fig. 2 is the structural schematic diagram of the large area array CMOS aerial camera system of the embodiment of the present invention.
Fig. 3 is the structural schematic diagram of the focusing test reflecting mirror switching device of the embodiment of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawing and specific implementation
Invention is further described in detail for example.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention,
It is not intended to limit the present invention.
In order to keep the narration of this disclosure more detailed with it is complete, below for embodiments of the present invention and specific real
It applies example and proposes illustrative description；But this not implements or uses the unique forms of the specific embodiment of the invention.Embodiment
In cover multiple specific embodiments feature and to construction with operate these specific embodiments method and step it is suitable with it
Sequence.However, can also reach identical or impartial function and sequence of steps using other specific embodiments.
The present invention provides a kind of large area array CMOS aerial camera systems, please refer to shown in Fig. 2, which includes:
Cmos detector 100, focusing test grating 200 and focusing test reflecting mirror 300, wherein the focusing test reflecting mirror 300 can switch to incident light
Line guides to the favorite places A1 of the cmos detector 100 and guides incident ray to the focusing test position of the focusing test grating 200
A2。
Wherein, cmos detector 100 is mounted in image planes, the direction of motion S1 and camera system light of focusing test reflecting mirror 300
Axis direction is vertical, and focusing test grating 200 is mounted in the conjugate planes of image planes.
Specifically, camera system further include: the scanning reflection mirror 400 that sets gradually along the optical path of incident ray is used for
Camera lens 500 that light is focused, the first refrative mirror 600 for being reflected light, for reflecting light
The second refrative mirror 700 and for the focusing test reflecting mirror 300 to be switched between favorite places A1 and focusing test position A2
Focusing test reflecting mirror switching device 800.
When imaging, focusing test reflecting mirror 300 is located at favorite places A1, ground scenery by scanning reflection mirror 400, camera lens 500,
First refrative mirror 600 and the second refrative mirror 700 are imaged on the target surface of cmos detector 100.When focusing test, focusing test reflecting mirror 300
Focusing test position A2 is switched to by favorite places A1, focusing test reflecting mirror 300 is located in imaging optical path, and is parked in focusing test position always
A2 turns back the light being incident in image planes in imaging optical path onto focusing test grating 200, and cooperation camera system carries out photoelectric auto
Straight focusing test.After focusing test, focusing test reflecting mirror 300 leaves imaging optical path, returns to favorite places A1, and be parked in favorite places always
A1, at this point, camera system again can be to ground Scenery Imaging.
Above-mentioned camera system guides focusing test reflecting mirror 300 to the collection of the cmos detector 100 by incident ray
Position A1 and guide incident ray between the focusing test position A2 of the focusing test grating 200 switches, and realizes in focusing test, will be incident
Light on to image planes is turned back onto focusing test grating 200, and after focusing test, imaging optical path is returned in image planes, does not cause light
Energy reduces.
Please refer to shown in Fig. 3, focusing test reflecting mirror switching device 800 of the invention include: support plate 10, linear guide 20,
Fixed mechanism 30, rack gear 40, driving mechanism 50 and positioning mechanism 60.
Wherein, support plate 10 includes cavern part 101 and frame portion 102, and frame portion 102 is arranged around the cavern part 101,
In one preferred embodiment, cavern part 101 is rectangle, frame portion 102 include the first frame 1021, the second frame 1022,
Third frame 1023 and the 4th frame 1024, the first frame 1021 and the second frame 1022 are the long side being oppositely arranged, third side
Frame 1023 and the 4th frame 1024 are the short side being oppositely arranged.
Wherein, there are two the settings of linear guide 20, two 20 parallel intervals of linear guide are set to the bottom surface of support plate 10,
Two linear guides 20 are respectively arranged on first frame 1021 and second frame 1022.
Wherein, fixed mechanism 30 is slided for installing focusing test reflecting mirror 300, fixed mechanism 30 and two linear guides 20
Cooperation is able to drive focusing test reflecting mirror 300 and slides along linear guide 20.
Wherein, rack gear 40 is arranged on fixed mechanism 30, meanwhile, rack gear 40 is located in cavern part 101, rack gear 40 and straight line
Guide rail 20 is arranged in parallel, and driving mechanism 50 drives the rack gear 40 to move in a straight line, since rack gear 40 and fixed mechanism 30 form one
A entirety, fixed mechanism 30 move in a straight line together with rack gear 40, to slide along linear guide 20.
Wherein, positioning mechanism 60 includes focusing test position switch 601, favorite places switch 602 and collision block 603, the focusing test position
Switch 601 is set close to the third frame 1023, which sets close to the 4th frame 1024, positioning mechanism 60
In in the cavern part 101, focusing test position switch 601 and favorite places switch 602 are set to 1021 inside of the first frame, focusing test
Position switch 601 and the setting of the interval of favorite places switch 602, collision block 603 are set to rack gear 40 towards first frame 1,021 1
Side.
When fixed mechanism 30 is slided along linear guide 20, rack gear 40 third frame 1023 and the 4th frame 1024 it
Between move in a straight line, collision block 603 is mobile with rack gear 40, when collision block 603 is moved at focusing test position switch 601, triggering inspection
Burnt position positioning, at this point, focusing test reflecting mirror 300 is located at focusing test position A2；When collision block 603 is moved at favorite places switch 602
When, triggering favorite places positioning, at this point, focusing test reflecting mirror 300 is located at favorite places A1.
In a preferred embodiment, which further includes focusing test position limit switch 604 and favorite places
Limit switch 605 is mechanical position limiting structure, wherein focusing test position limit switch 604 is set in the third frame 1023
Side, when the collision block 603, which triggers the focusing test position switch 601, to be positioned, focusing test position limit switch 604 is matched with the rack gear 40
It closes so that the rack gear 40 to be fixed.Wherein, favorite places limit switch 605 is set to 1024 inside of the 4th frame, when this hits
When the triggering of the block 603 favorite places switch 602 is positioned, favorite places limit switch 605 and the rack gear 40 cooperate to this
Rack gear 40 is fixed.
In a preferred embodiment, focusing test position switch 601 and favorite places switch 602 are all made of electric limit side
Formula, specifically, when collision block 603 is contacted with focusing test position switch 601, focusing test position switch 601, which is pressurized, triggers the first control letter
Number, which controls driving mechanism 50 and output voltage is switched to safe voltage, also, in rack gear 40 and focusing test position
Set limit switch 604 contact after, driving mechanism 50 is always held under safe voltage and works, guarantee rack gear 40 always with focusing test position
The contact of limit switch 604 is set, to realize that focusing test position positions.Similarly, when collision block 603 is contacted with favorite places switch 602
When, favorite places switch 602, which is pressurized, triggers second control signal, which controls driving mechanism 50 for output voltage
It is switched to safe voltage, also, after rack gear 40 is contacted with favorite places limit switch 605, driving mechanism 50 is always held at
It works under safe voltage, guarantees that rack gear 40 is contacted with favorite places limit switch 605 always, to realize that favorite places position.
In a preferred embodiment, focusing test position switch 601 and favorite places switch 602 are being propped up by screw setting
On fagging 10, focusing test position limit switch 604 and favorite places limit switch 605 are arranged in support plate 10 by screw, hit
Block 603 is arranged on rack gear 40 by screw.
Linear guide 20 and fixed mechanism 30 are set to 10 frame portion of support plate by above-mentioned focusing test reflecting mirror switching device 800
102, the rack gear 40 and positioning mechanism 60 that are used to be driven are set to 10 cavern part 101 of support plate, structure is simple, compact, positioning accurate
Degree is high, small in size, light-weight, and entire switching device processes, is easy to assembly, is conducive to promote.
In a preferred embodiment, driving mechanism 50 includes: switch motor 501, transition support 502 and gear 503,
Switch motor 501 includes output shaft 501a, and gear 503 is sheathed on the free end of output shaft 501a, and transition support 502 is for fixing
Switch motor 501, transition support 502 are set to second frame 1022, gear 503 and the rack gear 40 backwards to the fixed mechanism 30
The output shaft 501a rotation band moving gear 503 of side engagement, switch motor 501 rotates, and gear 503 does straight line fortune with carry-over bar 40
It is dynamic.Gear 503 and rack gear 40 match to form transmission mechanism, and the driving force of switch motor 501 is delivered to fixed mechanism 30, band
Dynamic fixed mechanism 30 is slided along linear guide 20.Further, the top surface of the second frame 1022 is formed with supporting block 504, uses
In the support switch motor 501, the shape of the contact surface of the supporting block 504 and switch motor 501 and the shape of switch motor 501
It matches, supporting block 504 is matched with transition support 502, and switch motor 501 is firmly secured on 10 top surface of support plate.
In a preferred embodiment, which includes: 301, two sliding blocks 302 of frame adjusting pad, reflection
Cell mount 303 and pressing plate 304, wherein two sliding blocks 302 are set to one side of the frame adjusting pad 301 towards the support plate 10, instead
One side of the cell mount 303 set on the frame adjusting pad 301 backwards to the support plate 10 is penetrated, pressing plate 304 consolidates the focusing test reflecting mirror 300
Due on the mirror frame 303, wherein two sliding blocks 302 are slidably connected with two linear guides 20 respectively, fixed mechanism 30
It is slidably connected by two sliding blocks 302 with linear guide 20.Further, it is also set between the linear guide 20 and the sliding block 302
There is ball (not shown).
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
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of focusing test reflecting mirror switching device, which is characterized in that the switching device includes:
Support plate, the support plate include cavern part and the frame portion around the cavern part, and the frame portion includes opposite
The first frame and the second frame being arranged；
Two linear guides of parallel interval setting, described two linear guides are respectively arranged on first frame and described second
Frame；
Fixed mechanism for installing focusing test reflecting mirror and being slidably matched with described two linear guides；
Set on the fixed mechanism and positioned at the rack gear of the cavern part, the rack gear is arranged in parallel with the linear guide；
For driving the driving mechanism of the rack movement；And
Set on the positioning mechanism of the cavern part, the positioning mechanism includes opening set on the focusing test position of first scuncheon
It closes and favorite places switchs and set on the rack gear towards the collision block of first frame side, the positioning mechanism is by structure
It makes to trigger the focusing test position switch or collection when the collision block contacts the focusing test position switch or favorite places switch
Position switch operation.
2. focusing test reflecting mirror switching device according to claim 1, which is characterized in that the driving mechanism includes: to have
The switch motor of output shaft, set on second frame and for fix the switch motor transition support and be sheathed on
The output shaft and with the rack gear backwards to the side meshed gears of the fixed mechanism.
3. focusing test reflecting mirror switching device according to claim 2, which is characterized in that second frame is backwards to described straight
The side of line guide rail is formed with the supporting block for being used to support the switch motor.
4. focusing test reflecting mirror switching device according to claim 1, which is characterized in that the fixed mechanism includes: frame
Adjusting pad, set on the frame adjusting pad towards the support plate one side two sliding blocks, be set to the frame adjusting pad backwards
The mirror frame of the support plate one side and the focusing test reflecting mirror is fixed on the pressing plate on the mirror frame,
Wherein, two sliding blocks are slidably connected with two linear guides respectively.
5. focusing test reflecting mirror switching device according to claim 4, which is characterized in that the linear guide and the sliding block
Between be equipped with ball.
6. focusing test reflecting mirror switching device according to claim 1, which is characterized in that the frame portion further includes opposite sets
The third frame and the 4th frame set, for the focusing test position switch close to the third frame, the favorite places switch is close
4th frame；The switching device further includes the focusing test position limit switch set on the third scuncheon, for working as institute
When stating collision block and triggering the focusing test position switch and positioned, cooperate with the rack gear the rack gear to be fixed.
7. focusing test reflecting mirror switching device according to claim 6, which is characterized in that the switching device further includes being set to institute
The favorite places limit switch for stating the 4th scuncheon, for being positioned when the collision block triggers the favorite places switch
When, cooperate with the rack gear the rack gear to be fixed.
8. focusing test reflecting mirror switching device according to claim 1, which is characterized in that the cavern part is rectangle.
9. a kind of large area array CMOS aerial camera system, which is characterized in that the camera system includes: cmos detector, focusing test light
Grid and focusing test reflecting mirror, wherein the focusing test reflecting mirror, which can switch to, guides incident ray to the receipts of the cmos detector
It hides position and guides incident ray to the focusing test position of the focusing test grating；
The camera system further include: the described in any item switching devices of claim 1 to 8, for the focusing test reflecting mirror to be existed
Switch between the favorite places and the focusing test position.
10. camera system according to claim 9, which is characterized in that the camera system further include: along the light of incident ray
Scanning reflection mirror that road is set gradually, the camera lens for being focused to light, first for being reflected light fold
Mirror and the second refrative mirror for being reflected light.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811540470.1A CN109725399B (en) | 2018-12-17 | 2018-12-17 | Focus detection reflector switching device and large-area array CMOS aerial camera system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811540470.1A CN109725399B (en) | 2018-12-17 | 2018-12-17 | Focus detection reflector switching device and large-area array CMOS aerial camera system |
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| CN109725399B CN109725399B (en) | 2020-07-21 |
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| JPH0990199A (en) * | 1995-09-27 | 1997-04-04 | Olympus Optical Co Ltd | Autofocus function adjusting device for automatic focusing camera |
| JP2009130613A (en) * | 2007-11-22 | 2009-06-11 | Nikon Corp | Digital camera |
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