CN103676083A - Optical lens with double view fields capable of being switched automatically and method for automatic switching of double view fields of optical lens - Google Patents
Optical lens with double view fields capable of being switched automatically and method for automatic switching of double view fields of optical lens Download PDFInfo
- Publication number
- CN103676083A CN103676083A CN201310693120.XA CN201310693120A CN103676083A CN 103676083 A CN103676083 A CN 103676083A CN 201310693120 A CN201310693120 A CN 201310693120A CN 103676083 A CN103676083 A CN 103676083A
- Authority
- CN
- China
- Prior art keywords
- lens
- zoom
- motor
- stationary magazine
- magazine creel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Lens Barrels (AREA)
Abstract
The invention discloses an optical lens with double view fields capable of being switched automatically. The optical lens with the double view fields capable of being switched automatically comprises a linear transmission mechanism, a fixing cylinder, a front fixing set, a focus adjusting mechanism, a zoom set, a rear fixing set, a lens set and a system controller, wherein the fixing cylinder comprises a slot formed along a bus, a front lens cone and a limiting ring are connected to the two ends of the fixing cylinder respectively, the front fixing set comprises the front lens cone which is fixedly connected with the front end of the fixing cylinder, the front lens cone is also fixedly connected with the front end of a supporting frame assembly, the rear fixing set comprises a rear fixing cylinder which is located in the limiting ring, a limiting nail installed on the rear fixing cylinder slides along inner threads of an outer focus adjusting ring, and the rotational motion of the outer focus adjusting ring is converted into back-and-forth movement of the rear fixing cylinder in the limiting ring in the direction of the optical axis. According to the optical lens with the double view fields capable of being switched automatically, a mechanical compensation changing form is adopted, the zoom set moves back and forth under the driving of a second electric motor which is driven by the system controller, so that two-gear automatic zoom is achieved, near-infrared double view field switching is achieved, and the purpose of remote detection is achieved.
Description
Technical field
The invention belongs to machinery and optical field, be specifically related to optical lens and double-view field automatic switching method thereof that a kind of double-view field automatically switches.This optical lens adopts the form of double-view field switching to reach wide visual field and catches the object of following the tracks of with narrow visual field, is applied to find and tracking target.
Background technology
At the Photoelectric Automatic Track System for aerial aim in short distance (operating distance 45Km) is surveyed, catches, followed the tracks of and measures, need to use focal optical lens, this optical lens is because application needs, should meet the detection of the large field range of distant object, meet again the ability that detection of a target small field of view details is differentiated, therefore its long focal length and image quality are all had to higher requirement, thereby make its Optical System Design difficulty larger.The complicated in mechanical structure of existing zoom lens, zooming time is long, and process and assemble is more difficult, make production cost high, zoom back focal length precision is restive, is not easy to reach the object of accurate measurement, and its complicated structure also makes product easily be damaged in use, and safeguard also more difficult.
Summary of the invention
For the defect existing in above-mentioned prior art or deficiency, the object of the invention is to, the optical lens that provides a kind of double-view field to automatically switch, this camera lens adopts the evolving form of mechanical compensation formula, by motor, drive zoom group to move forward and backward and realize two grades of autozooms, can realize Near-infrared Double visual field and switch, play the object of long-range detection.
In order to achieve the above object, the present invention adopts following technical scheme to be solved:
The optical lens that double-view field automatically switches, comprises following part:
One linear transmission mechanism: comprise a bracket assembly, a ball-screw, a shaft coupling, the second motor; Described ball-screw is arranged on bracket assembly, and the second motor connects ball-screw by shaft coupling, and ball-screw is connected with zoom group, for zoom group provides driving force;
One stationary magazine creel: comprise that one along bus fluting, front lens barrel and spacing ring are connected to stationary magazine creel two ends;
One front fixedly group: comprise a front lens barrel, the front end of this front lens barrel and stationary magazine creel connects firmly, and the front end of front lens barrel and bracket assembly connects firmly;
One focus adjusting mechanism: comprise a spacing ring, an outer focusing ring, direct current the first motor and a gear set with reducer casing, this spacing ring front end and stationary magazine creel connect firmly, and spacing ring and bracket assembly rear end connect firmly; This spacing ring rear end is connected with rear fixedly group spacing ring; The first motor connects outer focusing ring by gear set; Outer focusing ring is arranged on the external cylindrical surface of spacing ring, and described spacing ring (is provided with a fluting along cylinder bus; This first motor is connected with outer focusing ring by gear set, thereby the first motor-driven gear group rotation drives outer focusing ring rotation;
One zoom group: comprise a zoom lens barrel, this zoom lens barrel is positioned at stationary magazine creel, and this zoom lens barrel is connected with linear transmission mechanism by coupling shaft, zoom lens barrel passes through the driving of the second motor and ball-screw, thereby axially moves along stationary magazine creel bus fluting;
One rear fixedly group: comprise a rear stationary magazine creel, rear stationary magazine creel is positioned at spacing ring, the banking pin of installing on rear stationary magazine creel slides along the internal thread of outer focusing ring, and rotatablely moving of outer focusing ring is converted to rear stationary magazine creel seesawing along optical axis direction in spacing ring;
One lens combination: the lens combination that is separately installed with concentric setting in front lens barrel, zoom lens barrel and rear stationary magazine creel.
Further, described camera lens also comprises a system controller, and described linear transmission mechanism also comprises baffle plate, two optoelectronic switches, two optoelectronic switch seats, two microswitches and two limited blocks; Described baffle plate and microswitch baffle plate are arranged on respectively the both sides of zoom group lower carriage; Two optoelectronic switches are arranged on a side of bracket assembly by optoelectronic switch seat and are positioned at the two ends of bracket assembly length direction; Two microswitches are arranged on the opposite side of bracket assembly by limited block and are positioned at the two ends of bracket assembly length direction; System controller is connected respectively with two optoelectronic switches, two microswitches, the first motor and the second motor.
Further, be also provided with two linear cylindrical guide rails that are parallel to ball-screw on support frame as described above assembly, two bearing bracket stands are arranged on a straight line cylindrical guide by a linear bearing respectively; The upper end of two bearing bracket stands is separately fixed at the two ends of zoom group lower carriage for supporting zoom group lower carriage.
Further, the external cylindrical surface of described linear bearing coordinates with bearing bracket stand inner cylinder face, then by screw, bearing bracket stand and a bearing check plate is connected firmly, and linear bearing is fixed in bearing bracket stand.
Further, the lens combination in described front lens barrel is by concentric installation one positive lens, a negative lens, a cemented doublet and a negative lens successively after forward direction.
Further, the lens combination in described zoom lens barrel is a positive lens, a cemented doublet and a positive lens of installing with one heart successively by after forward direction.
Further, described cemented doublet is comprised of two positive lenss that bond together with one heart and a negative lens.
Further, the lens combination in described rear stationary magazine creel is a negative lens, a positive lens, a negative lens and a positive lens of installing with one heart successively by after forward direction.
The double-view field automatic switching method of the optical lens that above-mentioned double-view field automatically switches, comprises the steps:
In the time of need to focusing, after the driving of startup system control device and control the first driven by motor, fixedly group moves forward and backward along optical axis direction;
While needing visual field to switch, startup system control device control the second driven by motor zoom group in stationary magazine creel along optical axis direction accelerated motion, when being arranged on the baffle plate of zoom group lower carriage one side, trigger first optoelectronic switch, this optoelectronic switch sends signal to system controller, system controller is controlled the second driven by motor zoom group uniform motion, when baffle plate triggers second optoelectronic switch, this optoelectronic switch sends signal to system controller, and system controller is controlled the second driven by motor zoom group retarded motion; When microswitch baffle plate triggers arbitrary microswitch, this microswitch sends signal to system controller, and system controller is controlled the second motor and stopped operating.
Optical lens of the present invention adopts the form of mechanical compensation, drives zoom group to move forward and backward realize two grades of autozooms by motor, can realize Near-infrared Double visual field and switch, and plays the object of long-range detection; Meanwhile, adopt the positive lens bonding together with one heart and the negative lens matching form of cemented doublet, made positive light coke and negative power in conjunction with effectively proofreading and correct high-order spherical aberration and coma; Adopt the form of cemented doublet and simple lens combination to make up the deficiency of proofreading and correct senior aberration.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the optical lens of double-view field automatic switchover of the present invention.
Fig. 2 is the optical system diagram of the optical lens that automatically switches of double-view field of the present invention when short burnt state.
Fig. 3 is the optical system diagram of the optical lens that automatically switches of double-view field of the present invention when long burnt state.
Fig. 4 is CCD target surface size and the spatial domain scale relationships figure that detects target.
Fig. 5 is long burnt position spherical aberration curve.
Fig. 6 is short burnt position spherical aberration curve.
Fig. 7 is short burnt position transfer function figure.
Fig. 8 is long burnt position transfer function figure.
Fig. 9 is the cut-open view of the optical lens of double-view field automatic switchover of the present invention.
Figure 10 is the three-dimensional explosive view of the optical lens of double-view field automatic switchover of the present invention.
Figure 11 is the vertical view of the optical lens of double-view field automatic switchover of the present invention.
Below in conjunction with drawings and Examples, the present invention is further explained.
Embodiment
Main thought of the present invention is that the focal length of zoom lens is determined, makes zoom lens have the detection that had both met the large field range of distant object under the environment of mist, meets again the ability that detection of a target small field of view details is differentiated.In order to meet fog penetrating function, the band selection of camera lens of the present invention is 790nm-910nm.Focal length is the important parameter of optical design, below according to the Johnson criterion shown in table 1, using span 8m aircraft as target, to meeting the focal length of the optical lens of above-mentioned requirements, determine.
Table 1 Johnson criterion
| Observe grade | Implication | Required demand pairs (50% probability) |
| Survey (discovery) | In visual field, find target | 1.0±0.25 |
| Differentiate | Can roughly distinguish target type | 1.4±0.35 |
| Identification | Can be by target segments | 4.0±0.8 |
| See clearly | Can distinguish model and the feature of target | 6.4±1.5 |
According to formula 1, calculate focal length:
In formula, b is detector Pixel size, and n is pixel number, and y is target size, and L is the distance between object and camera lens, and f ＇ is lens focus.
(a) if can the detection of a target, at least need demand pairs, a line is to equaling two pixels, so the detection of a target at least needs to account for 2 pixels.
Get n=2; B=8.3um; Y=8m; L=10km.Calculating focal length is f '=20.75mm;
Get n=2; B=8.3um; Y=8m; L=30km.Calculating focal length is f '=62.25mm;
Get n=2; B=8.3um; Y=8m; L=45km.Calculating focal length is f '=93.375mm.
(b) if can resolution target, object imaging at least accounts for 4 pixels, and its resoluting probability is 50%.
Get n=4; B=8.3um; Y=8m; L=10km.Calculate focal distance f '=41.5mm;
Get n=4; B=8.3um; Y=8m; L=30km.Calculate focal distance f '=124.5mm;
Get n=4; B=8.3um; Y=8m; L=45km.Calculate focal distance f '=186.75mm.
(c) if can identify target, object imaging at least accounts for 8 pixels, and its identification probability is 50%.
Get parameter n=8; B=8.3um; Y=8m; L=10km.Calculating focal length is f '=83mm;
Get parameter n=8; B=8.3um; Y=8m; L=30km.Calculating focal length is f '=249mm;
Get parameter n=8; B=8.3um; Y=8m; L=45km.Calculating focal length is f '=373.5mm.
(d) if can see clearly target, object imaging at least accounts for 10 pixels, and it sees clearly that probability is 50%.
Get parameter n=12; B=8.3um; Y=8m; L=10km.Calculating focal length is f '=103.75mm;
Get parameter n=12; B=8.3um; Y=8m; L=30km.Calculating focal length is f '=311.25mm;
Get parameter n=12; B=8.3um; Y=8m; L=45km.Calculating focal length is f '=466.875mm.
To sum up, if can aircraft type and feature differentiation is clear (seeing clearly target), the lens focus value at 45km place be at least 466.875 ㎜, and length focal length is chosen for to 500mm; If can detect aircraft, at 45km place, lens focus value is at least 93.375 ㎜, for meeting the requirement of whole system visual field, short focal length is chosen as to 110mm.
As seen from Figure 4, detectable spatial domain, visual field becomes certain proportionate relationship a/m=b/n=f ＇/L with CCD target surface size.Wherein, a is CCD target surface width, and b is CCD target surface length, and m is the width of visual field detectable area, and n is the length of visual field detectable area, and f ＇ is lens focus, and L is the distance between target and camera lens, and getting 45km is detectable maximum distance;
Can calculate thus the detectable spatial domain of wide visual field: a(CCD target surface is wide) be 4.8mm, b (CCD target surface is long) is 6.4mm, f ＇=110mm, calculates m=1.96km, n=2.62km.Therefore,, when short focal length is set as 110mm, the spatial domain that can detect is (2.6 * 1.96) km
2.In like manner, when long focal length is set as 500 ㎜, calculating the spatial domain that can detect is (0.57 * 0.43) km
2.
In order to meet above-mentioned setting focal length, the lens that the present invention selects are as follows:
As shown in Fig. 2, Fig. 3, Fig. 9 and table 2, lens combination in front fixedly group 1 adopts two gummeds and signal-lens array configuration, a positive lens, a negative lens, a cemented doublet and a negative lens is installed successively with one heart after being specially in front lens barrel 8 by forward direction; Lens in zoom group 2 also adopt two gummeds and signal-lens array configuration, a positive lens, a cemented doublet and a positive lens are installed successively with one heart after being specially in zoom lens barrel 17 by forward direction; Lens in rear fixing group 4 adopt four signal-lens combinations, a negative lens, a positive lens, a negative lens and a positive lens are installed successively with one heart after being specially in rear stationary magazine creel 30 by forward direction.
Above-mentioned cemented doublet is used for proofreading and correct axial chromatic aberration, chromatic longitudiinal aberration, spherochromatism and second order spectrum aberration.In cemented doublet, adopt positive lens and the negative lens matching form bonding together with one heart, one is high index of refraction, and one is low-refraction, and positive light coke and negative power are in conjunction with can effectively proofreading and correct high-order spherical aberration and coma.Its positive lens is for outstanding above, and material adopts heavy crown, and its negative lens is bi-concave, and bore and positive lens are suitable, and material is dense flint.Adopt the form of cemented doublet and simple lens combination can make up the deficiency of proofreading and correct senior aberration.
Cemented doublet in front fixedly group is specially:
Positive lens BaK4 n=1.552481 ν=46.9
Negative lens Laf3A n=1.744000 ν=44.9
Cemented doublet in zoom group is specially:
Positive lens LaK5 n=1.69100 ν=54.8
Negative lens Laf3A n=1.755201 ν=27.5
Through type (2) is changed radius:
R＇/r=(n＇-1)/(n-1) （2）
Through calculating the spherical aberration curve map as Fig. 5 and Fig. 6.
The lens that adopt in the optical lens that table 2 double-view field of the present invention automatically switches
By optimization, draw as the transport function figure of Fig. 7 and Fig. 8.
Fig. 9 is the cut-open view of two grades of Varifocus lens devices of the present invention.This device comprises front fixedly group 1, zoom group 2, focus adjusting mechanism 3, rear fixedly group 4, linear transmission mechanism 6 and system controller 7.
Figure 10 is three-dimensional explosive view of the present invention.
Linear transmission mechanism 6 comprises bracket assembly 33, a ball-screw 44, a shaft coupling 32, one second motor 31, two optoelectronic switches 14, two optoelectronic switch seats 12, two microswitches 41, two limited blocks 35, two linear cylindrical guide rails 43 and two linear bearings 10; Wherein, two linear cylindrical guide rails 43 and ball-screw 44 are set in parallel on bracket assembly 33, and ball-screw 44 is arranged on bracket assembly 33 and between two linear cylindrical guide rails 43, and feed screw nut 39 is fixed on ball-screw 44; Feed screw nut 39 connects firmly by screw with feed screw nut frame 34, and the upper end of feed screw nut frame 34 is fixed on zoom group lower carriage 37 middle parts; Two bearing bracket stands 40 are arranged on a straight line cylindrical guide 43 by a linear bearing 10 respectively; The upper end of two bearing bracket stands 40 is separately fixed at the two ends of zoom group lower carriage 37 for supporting zoom group lower carriage 37; Linear bearing 10 external cylindrical surfaces coordinate with bearing bracket stand 40 inner cylinder faces, then by screw, bearing bracket stand 40 and bearing check plate 42 are connected firmly, and linear bearing 10 is fixed in bearing bracket stand 40.Zoom group upper bracket 36 is installed in zoom group lower carriage 37 tops, and zoom group upper bracket 36 is connected with the zoom lens barrel 17 in stationary magazine creel 11 by coupling shaft 13; The second motor 31 connects ball-screw 44 by shaft coupling 32; The driving force of the second motor 31 passes torque to ball-screw 44 by shaft coupling 32, and feed screw nut 39, feed screw nut frame 34, zoom group lower carriage 37, zoom group upper bracket 36 and the coupling shaft 13 of ball-screw 44 by connecting successively drives zoom lens barrels 17 along optical axis direction, to seesaw stationary magazine creel 11 is interior; Meanwhile, the linear bearing 10, bearing bracket stand 40 and the bearing check plate 42 that are connected with zoom group lower carriage 37 two ends all seesaw along linear cylindrical guide rail 43 thereupon.
Collar 29 and outer focusing ring 21 are arranged on the external cylindrical surface of spacing ring 18, and described outer focusing ring 21 external cylindrical surfaces are provided with gear, are connected with gear set 20; Outer focusing ring 21 inner cylinder faces are provided with the square thread that pitch is 4mm, in the threaded hole that rear stationary magazine creel 30 is provided with, guide pin is installed, after this guide pin stretches out from the fluting of the cylinder bus of spacing ring 18, its end is positioned at the groove of outer focusing ring 21 square threads and can slides along this groove.The first motor 19 connects outer focusing ring 21 by gear set 20, the first motor 19 connected system controllers 7, after zoom completes, in the time of need to focusing if image planes are clear not, by the button connecting on system controller 7, making system controller 7 control the first motor 19 starts, the driving force of the first motor 19 is delivered to outer focusing ring 21 by gear set 20, when outer focusing ring 21 rotation, guide pin on rear stationary magazine creel 30 is interior slip of groove of focusing ring 21 square threads outside, after driving, stationary magazine creel 30 seesaws along axis direction spacing ring 18 is interior, carry out trace focusing, thereby make image planes clear.
Described spacing ring 18 is provided with an external thread, and the internal thread being provided with rear fixedly group spacing ring 22 is connected, and rear fixedly group spacing ring 22 supports by the back up pad 28 being connected on bracket assembly 33; Rear fixing group spacing ring 22 is provided with the guide pin that threaded hole is installed a level, camera interface 23 is provided with the guide pin that a threaded hole is installed a level, rear fixing group spacing ring 22 inner cylinder faces coordinate with camera interface 23 external cylindrical surfaces, rear fixing group spacing ring 22 is provided with an external thread, the internal thread being provided with gland 24 is connected, gland 24 inner cylinder faces coordinate with camera interface 23 external cylindrical surfaces, and the mutual barrier effect by two guide pins on same circumference prevents that camera interface 23 from rotating with gland 24.Camera interface 23 and gland 24 are parallel with surface level for adjusting the horizontal direction of CCD camera 5.
In the internal thread hole of rear fixing group spacing ring 22, sealing gasket 27, rear cover glass 26 and trim ring 25 are installed successively.
Figure 11 is vertical view of the present invention.One baffle plate 15 is arranged on respectively the both sides of zoom group lower carriage 37 with microswitch baffle plate 38 by screw; Two optoelectronic switches 14 are arranged on a side of bracket assembly 33 by optoelectronic switch seat 12 and are positioned at the two ends of bracket assembly 33 length directions, two optoelectronic switches 14 and baffle plate 15 are positioned at the same side of bracket assembly 33, while triggering for being blocked by baffle plate 15, provide acceleration, deceleration signal, thereby improve zoom speed; Two microswitches 41 are arranged on the opposite side of bracket assembly 33 by limited block 35 and are positioned at the two ends of bracket assembly 33 length directions, two microswitches 41 and microswitch baffle plate 38 are positioned at the same side of bracket assembly 33, and zoom position signal is provided when being triggered by 38 contacts of microswitch baffle plate.
System controller 7 is connected respectively with two optoelectronic switches, two microswitches, the first motor 19 and the second motor 1; For receiving the signal of two optoelectronic switches and two microswitches, and for the first motor 19, the second motor 31 are driven and controlled.
In the present embodiment, the second motor 31 adopts the direct current generator of 12V.The helical pitch of ball-screw 44 is 2mm.System controller 7 adopts micro-chip processor.
The present invention can carry out double-view field automatic switchover under the control of system controller 7.The method automatically switching can adopt the visual field automatic switching method of ordinary optical camera lens, also can be in the following way:
When camera lens of the present invention needs zoom, by the button on system controller 7, making system controller 7 control the second motor 31 drives zoom group 2 interior along optical axis direction accelerated motion at stationary magazine creel 11, when being arranged on the baffle plate 15 of zoom group lower carriage 37 1 sides, trigger first optoelectronic switch 14, this optoelectronic switch 14 sends signal to system controller, system controller 7 is controlled the second motor 31 and is driven zoom group 2 uniform motion, when baffle plate 15 triggers second optoelectronic switch 14, this optoelectronic switch 14 sends signal to system controller, system controller 7 is controlled the second motor 31 and is driven 2 retarded motions of zoom group, when microswitch baffle plate 38 triggers arbitrary microswitch 41, this microswitch 41 sends signal to system controller, and system controller 7 is controlled the second motor 31 and stopped operating.Realization can improve lens zoom speed can prevent that again zoom group 2 movement velocitys are excessive.Wrong when microswitch 41 trigger pips, when system controller 7 is not controlled the second motor 31 and stopped operating, bearing check plate 42 can block for limited 35 when arriving limited block 35, thereby plays position limitation protection effect.
During short Jiao of camera lens of the present invention, as shown in Figure 2, during long Jiao, optical system diagram as shown in Figure 3 for optical system diagram.As shown in Figure 2,3, when zoom group 2 be switched near after fixing group 4 Shi Weikuan visual fields, position, be switched near front fixedly group 1 Shi Weizhai visual field, position.The task of the front fixing group 1 correction senior aberration of bearing, zoom group 2 plays the effect of zoom, and rear fixedly group 4 plays effect fixing and that focus.
Above-described embodiment is only to give an example for convenience of description, and the interest field that the present invention advocates should be as the criterion with described in claim certainly, but not only limits to above-described embodiment.
Claims (9)
1. the optical lens that double-view field automatically switches, is characterized in that, comprises following part:
One linear transmission mechanism (6): comprise a bracket assembly (33), a ball-screw (44), a shaft coupling (32), the second motor (31); It is upper that described ball-screw (44) is arranged on bracket assembly (33), and the second motor (31) connects ball-screw (44) by shaft coupling (32), and ball-screw (44) is connected with zoom group (2), for zoom group (2) provides driving force;
One stationary magazine creel (11): comprise that one along bus fluting, front lens barrel (8) and spacing ring (18) are connected to stationary magazine creel (11) two ends;
One front fixedly group (1): comprise a front lens barrel (8), this front lens barrel (8) connects firmly with the front end of stationary magazine creel (11), and front lens barrel (8) connects firmly with the front end of bracket assembly (33);
One focus adjusting mechanism (3): comprise a spacing ring (18), an outer focusing ring (21), direct current first motor (19) with reducer casing and a gear set (20), this spacing ring (18) front end and stationary magazine creel (11) connect firmly, and spacing ring (18) connects firmly with bracket assembly (33) rear end; This spacing ring (18) rear end is connected with rear fixedly group spacing ring (22); The first motor (19) connects outer focusing ring (21) by gear set (20); Outer focusing ring (21) is arranged on the external cylindrical surface of spacing ring (18), and described spacing ring (18) is provided with a fluting along cylinder bus; This first motor (19) is connected with outer focusing ring (21) by gear set (20), the first motor (19) drive gear set (20) thus the rotation outer focusing ring of drive (21) rotates;
One zoom group (2): comprise a zoom lens barrel (17), this zoom lens barrel (17) is positioned at stationary magazine creel (11), this zoom lens barrel (17) is connected with linear transmission mechanism (6) by coupling shaft (13), zoom lens barrel (17) passes through the driving of the second motor (31) and ball-screw (44), thereby axially moves along stationary magazine creel (11) bus fluting;
One rear fixedly group (4): comprise a rear stationary magazine creel (30), rear stationary magazine creel (30) is positioned at spacing ring (18), the upper banking pin of installing of rear stationary magazine creel (30) slides along the internal thread of outer focusing ring (21), and rotatablely moving of outer focusing ring (21) is converted to rear stationary magazine creel (30) seesawing along optical axis direction in spacing ring (18);
One lens combination: the lens combination that is separately installed with concentric setting in front lens barrel (8), zoom lens barrel (17) and rear stationary magazine creel (30).
2. the optical lens that double-view field as claimed in claim 1 automatically switches, it is characterized in that, described camera lens also comprises a system controller (7), and described linear transmission mechanism (6) also comprises baffle plate (15), two optoelectronic switches (14), two optoelectronic switch seats (12), two microswitches (41) and two limited blocks (35); Described baffle plate (15) and microswitch baffle plate (38) are arranged on respectively the both sides of zoom group lower carriage (37); Two optoelectronic switches (14) are arranged on a side of bracket assembly (33) by optoelectronic switch seat (12) and are positioned at the two ends of bracket assembly (33) length direction; Two microswitches (41) are arranged on the opposite side of bracket assembly (33) by limited block (35) and are positioned at the two ends of bracket assembly (33) length direction; System controller (7) is connected respectively with two optoelectronic switches, two microswitches, the first motor (19) and the second motor (1).
3. the optical lens that double-view field as claimed in claim 1 automatically switches, it is characterized in that, on support frame as described above assembly (33), be also provided with two linear cylindrical guide rails (43) that are parallel to ball-screw (44), two bearing bracket stands (40) are arranged on a straight line cylindrical guide (43) by a linear bearing (10) respectively; The two ends that the upper end of two bearing bracket stands (40) is separately fixed at zoom group lower carriage (37) are used for supporting zoom group lower carriage (37).
4. the optical lens that double-view field as claimed in claim 3 automatically switches, it is characterized in that, the external cylindrical surface of described linear bearing (10) coordinates with bearing bracket stand (40) inner cylinder face, by screw, bearing bracket stand (40) and a bearing check plate (42) are connected firmly again, linear bearing (10) is fixed in bearing bracket stand (40).
5. the optical lens that double-view field as claimed in claim 1 automatically switches, is characterized in that, the lens combination in described front lens barrel (8) is a positive lens, a negative lens, a cemented doublet and a negative lens of installing with one heart successively by after forward direction.
6. the optical lens that double-view field as claimed in claim 1 automatically switches, is characterized in that, the lens combination in described zoom lens barrel (16) is a positive lens, a cemented doublet and a positive lens of installing with one heart successively by after forward direction.
7. the optical lens that the double-view field as described in claim 5 or 6 automatically switches, is characterized in that, described cemented doublet is comprised of two positive lenss that bond together with one heart and a negative lens.
8. the optical lens that double-view field as claimed in claim 1 automatically switches, is characterized in that, the lens combination in described rear stationary magazine creel (30) is a negative lens, a positive lens, a negative lens and a positive lens of installing with one heart successively by after forward direction.
9. the double-view field automatic switching method of the optical lens that double-view field claimed in claim 2 automatically switches, is characterized in that, comprises the steps:
In the time of need to focusing, startup system control device (7) is controlled the first motor (19) and is driven rear fixedly group (4) to move forward and backward along optical axis direction;
While needing visual field to switch, startup system control device (7) control the second motor (31) drive zoom group (2) in stationary magazine creel (11) along optical axis direction accelerated motion, when being arranged on the baffle plate (15) of zoom group lower carriage (37) one sides, trigger first optoelectronic switch (14), this optoelectronic switch (14) sends signal to system controller, system controller (7) is controlled the second motor (31) and is driven zoom group (2) uniform motion, when baffle plate (15) triggers second optoelectronic switch (14), this optoelectronic switch (14) sends signal to system controller, system controller (7) is controlled the second motor (31) and is driven zoom group (2) retarded motion, when microswitch baffle plate (38) triggers arbitrary microswitch (41), this microswitch (41) sends signal to system controller, and system controller (7) is controlled the second motor (31) and stopped operating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310693120.XA CN103676083B (en) | 2013-12-16 | 2013-12-16 | The optical lens that a kind of double-view field automatically switches and double-view field automatic switching method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310693120.XA CN103676083B (en) | 2013-12-16 | 2013-12-16 | The optical lens that a kind of double-view field automatically switches and double-view field automatic switching method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103676083A true CN103676083A (en) | 2014-03-26 |
| CN103676083B CN103676083B (en) | 2016-01-13 |
Family
ID=50314178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310693120.XA Active CN103676083B (en) | 2013-12-16 | 2013-12-16 | The optical lens that a kind of double-view field automatically switches and double-view field automatic switching method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103676083B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104735325A (en) * | 2015-04-07 | 2015-06-24 | 北京释码大华科技有限公司 | Mobile terminal imaging device and mobile terminal |
| CN106249383A (en) * | 2016-08-30 | 2016-12-21 | 福建福光股份有限公司 | Two grades of visual field tracking measurement camera lenses of long-focus |
| CN106908929A (en) * | 2017-04-28 | 2017-06-30 | 中山联合光电科技股份有限公司 | A kind of lens construction of application shaft coupling |
| CN107076959A (en) * | 2014-10-21 | 2017-08-18 | 微软技术许可有限责任公司 | Control condenser lens assembly |
| CN107067495A (en) * | 2017-04-10 | 2017-08-18 | 江苏车视杰电子有限公司 | A kind of drive recorder with autofocus adjustment function |
| CN111426391A (en) * | 2020-04-02 | 2020-07-17 | 济南和普威视光电技术有限公司 | Double-view-field infrared thermal imaging lens and view field switching method |
| CN114088206A (en) * | 2021-10-25 | 2022-02-25 | 中国电子科技集团公司第十一研究所 | Thermal imager field repositioning mechanism and use method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102809805A (en) * | 2012-08-30 | 2012-12-05 | 福建福光数码科技有限公司 | Miniaturized airborne zoom lens with large zooming ratio |
| CN103424851A (en) * | 2013-08-22 | 2013-12-04 | 福建福光数码科技有限公司 | High-resolution and long-and-variable-focus airborne camera lens with automatic focusing and automatic dimming functions |
| CN203705717U (en) * | 2013-12-16 | 2014-07-09 | 西安天和防务技术股份有限公司 | Optical lens capable of switching automatically double fields of view |
-
2013
- 2013-12-16 CN CN201310693120.XA patent/CN103676083B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102809805A (en) * | 2012-08-30 | 2012-12-05 | 福建福光数码科技有限公司 | Miniaturized airborne zoom lens with large zooming ratio |
| CN103424851A (en) * | 2013-08-22 | 2013-12-04 | 福建福光数码科技有限公司 | High-resolution and long-and-variable-focus airborne camera lens with automatic focusing and automatic dimming functions |
| CN203705717U (en) * | 2013-12-16 | 2014-07-09 | 西安天和防务技术股份有限公司 | Optical lens capable of switching automatically double fields of view |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107076959A (en) * | 2014-10-21 | 2017-08-18 | 微软技术许可有限责任公司 | Control condenser lens assembly |
| CN104735325A (en) * | 2015-04-07 | 2015-06-24 | 北京释码大华科技有限公司 | Mobile terminal imaging device and mobile terminal |
| CN104735325B (en) * | 2015-04-07 | 2018-01-26 | 北京释码大华科技有限公司 | The imaging device and mobile terminal of a kind of mobile terminal |
| CN106249383A (en) * | 2016-08-30 | 2016-12-21 | 福建福光股份有限公司 | Two grades of visual field tracking measurement camera lenses of long-focus |
| CN106249383B (en) * | 2016-08-30 | 2018-07-27 | 福建福光股份有限公司 | Two grades of visual field tracking measurement camera lenses of long-focus |
| CN107067495A (en) * | 2017-04-10 | 2017-08-18 | 江苏车视杰电子有限公司 | A kind of drive recorder with autofocus adjustment function |
| CN106908929A (en) * | 2017-04-28 | 2017-06-30 | 中山联合光电科技股份有限公司 | A kind of lens construction of application shaft coupling |
| CN111426391A (en) * | 2020-04-02 | 2020-07-17 | 济南和普威视光电技术有限公司 | Double-view-field infrared thermal imaging lens and view field switching method |
| CN114088206A (en) * | 2021-10-25 | 2022-02-25 | 中国电子科技集团公司第十一研究所 | Thermal imager field repositioning mechanism and use method thereof |
| CN114088206B (en) * | 2021-10-25 | 2023-10-24 | 中国电子科技集团公司第十一研究所 | Thermal imager view field repositioning mechanism and use method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103676083B (en) | 2016-01-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103676083B (en) | The optical lens that a kind of double-view field automatically switches and double-view field automatic switching method thereof | |
| CN203705717U (en) | Optical lens capable of switching automatically double fields of view | |
| CN102062588B (en) | Computer binocular vision denture scanning device and three-dimensional reconstruction method thereof | |
| CN101949866B (en) | Single camera omni-directional vision sensor for package test | |
| CN103226234B (en) | Method for adjusting optical axis of Pechan prism | |
| CN206930878U (en) | A kind of automatic focusing mechanism and camera | |
| CN101562693B (en) | Optical imaging splicing device of double CCD image splicing detector | |
| CN100569176C (en) | A kind ofly utilize virtual the looking-eye movement reflex method of target of looking | |
| CN102012268A (en) | Airborne infrared scanning observation device realized by double optical wedges | |
| EP2824412A1 (en) | Electronically adjustable remote optical apparatus | |
| CN103728315A (en) | Large-aperture element surface detection device and corresponding damage quick localization method | |
| CN105372856A (en) | Multi-station aligning method and device for detecting large-screen panel based on mechanical arm | |
| CN102193182B (en) | Moveable reflector laser collimator, moveable reflector target surface sensor and laser collimating method thereof | |
| CN101865763A (en) | Parallax measurement device of airborne head-up display | |
| CN109859192A (en) | The detection recognition method of round high reflective workpiece | |
| CN104197926B (en) | A kind of robot navigation device of use active vision mode | |
| CN204790142U (en) | Fisheye lens formation of image detection device with great visual angle | |
| KR20120098192A (en) | Moving robot and method for controlling the same | |
| CN103813102A (en) | Vehicle-mounted variable-focus panorama monitoring system for detail imaging | |
| CN100483072C (en) | Surveying apparatus | |
| CN107749938A (en) | A kind of monocular multi-focus stereo vision apparatus for robot three-dimensional environment sensing | |
| CN104677304A (en) | Screen-type optical tester with adjustable environmental brightness | |
| CN101317753A (en) | Multifunctional sight detecting instrument | |
| CN207304718U (en) | A kind of monocular multi-focus stereo vision apparatus for robot three-dimensional environment sensing | |
| US20220256088A1 (en) | Virtual zoom lens |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |