CN109613786B - Camera gear linear switching device and optical camera - Google Patents
Camera gear linear switching device and optical camera Download PDFInfo
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- CN109613786B CN109613786B CN201811541498.7A CN201811541498A CN109613786B CN 109613786 B CN109613786 B CN 109613786B CN 201811541498 A CN201811541498 A CN 201811541498A CN 109613786 B CN109613786 B CN 109613786B
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- arm
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- lens group
- bearing
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/32—Means for focusing
- G03B13/34—Power focusing
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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
- G02B7/10—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
- Microscoopes, Condenser (AREA)
Abstract
The invention belongs to the technical field of optical imaging detection, and particularly relates to a camera gear linear switching device which comprises a base and a zooming guide seat, wherein a motor is arranged on the base, the output end of the motor is fixedly connected with one end of a driving arm, the other end of the driving arm is hinged with a driven arm, a moving block is sleeved on the driven arm, the driven arm can slide in the moving block along the vertical direction, a zooming lens group is arranged in the zooming guide seat and can move in the zooming guide seat along the horizontal direction, the zooming lens group is connected with a moving block, a sliding groove is formed in the zooming guide seat along the horizontal direction, and the moving block can move along the sliding groove. The motor of the invention can accurately control the rotation angle of the driving arm, thereby accurately controlling the movement of the zoom lens group and realizing the advantage of accurate zoom of the zoom lens group.
Description
Technical Field
The invention belongs to the technical field of optical imaging detection, and particularly relates to a camera gear linear switching device and an optical camera.
Background
In the field of optical detection, in order to meet the requirement of a long-focus optical camera for searching, tracking and aiming a long-distance target, a variable-focus optical structure design is often adopted. The zoom focusing mechanism in the optical structure is adjusted to move the focusing lens group along the optical axis direction, so that the camera can clearly image targets at different distances far away on the target surface of the camera. In the traditional zoom focusing method, a zoom lens group is mainly arranged on a linear guide rail or a cam mechanism, and optical zoom is realized through movement of the zoom lens group. Although the method is simple and easy to use, the zoom precision of the zoom lens group is lower.
Disclosure of Invention
The invention aims to provide a camera gear linear switching device and an optical camera, which have the advantage of realizing accurate zooming of a zoom lens group.
In order to achieve the purpose, on one hand, the invention adopts the technical scheme that: the utility model provides a camera gear straight line auto-change over device includes base and zoom guide holder, set up the motor on the base, the output of motor and the one end fixed connection of actuating arm, the articulated driven arm of the other end of actuating arm, the suit movable block on the driven arm, the driven arm can slide along vertical direction in the movable block, set up zoom lens group in the zoom guide holder, zoom lens group can remove along the horizontal direction in the zoom guide holder, zoom lens group is connected with the movable block, set up the spout along the horizontal direction in the zoom guide holder, the movable block can remove along the spout.
Preferably, the driving arm is provided with a limiting separation blade, the two sides of the base are respectively provided with a first switch frame and a second switch frame, the first switch frame is provided with a first state switch, the second switch frame is provided with a second state switch, the limiting separation blade can be respectively matched with the first state switch and the second state switch, and the first state switch and the second state switch can respectively control the motor.
Preferably, the base is provided with a first limit stop and a second limit stop respectively, and the first limit stop and the second limit stop can limit the rotation angle of the driving arm to be 0-180 degrees.
Preferably, one end of a tension spring is connected to the driving arm, and the other end of the tension spring is fixed on the base.
Preferably, the output end of the motor is connected with a coupler, the coupler is connected with one end of a driving shaft, and the other end of the driving shaft is connected with a driving arm.
Preferably, the other end of the driving arm is fixedly connected with a driven arm shaft, and the driven arm shaft is connected with the driven arm through a driven arm bearing.
Preferably, a mounting hole is formed in the base, the driving shaft is located in the mounting hole, the driving shaft is sequentially sleeved with the driving bearing and the bearing spacer ring, the driving shaft is provided with the bearing inner pressing ring through threads, and the bearing inner pressing ring locks an inner ring of the driving bearing; and an outer pressing ring of the bearing is arranged in the mounting hole through threads, and the outer pressing ring of the bearing locks the outer ring of the driving bearing.
In another aspect, the present invention provides an optical camera, including any one of the above-mentioned camera gear linear switching devices.
According to the camera gear linear switching device, the motor drives the driving arm to rotate, the driving arm drives the driven arm to slide up and down in the moving block, the moving block and the zoom lens group are further driven to move along the horizontal direction, gear switching of the zoom lens group is achieved through movement of the zoom lens group, linear movement of the moving block and the zoom lens group is converted into linear movement through rotation of the driving arm and movement of the driven arm, the zoom guide seat is provided with the sliding groove, a guide direction is provided for movement of the moving block and the zoom lens group, the moving block and the zoom lens group do not deviate during movement, the motor can accurately control the rotation angle of the driving arm, movement of the zoom lens group is further accurately controlled, and gear rapid switching and accurate zooming are achieved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a camera gear position linear switching device according to an embodiment of the present invention;
fig. 2 is a second schematic structural diagram of a camera gear linear switching device according to an embodiment of the present invention;
fig. 3 is a front view of a camera gear linear switching device according to an embodiment of the present invention;
fig. 4 is a sectional view a-a of fig. 3.
Wherein, each reference mark in the figure is:
1-mounting platform 2-base 3-first switch frame 4-first state switch
5-tension spring fixing screw 6-motor 7-motor support 8-coupler
9-driving arm 10-driving shaft 11-second switch frame 12-second state switch
13-driven arm 14-moving block 15-zooming guide seat 16-zooming lens group
17-driven arm shaft 18-tension spring 19-tension spring fixing seat 20-driving shaft bearing
21-bearing inner pressing ring 22-bearing outer pressing ring 23-bearing spacer ring 24-driven arm bearing
25-limit stop 26-second limit stop 27-first limit stop
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to fig. 1-4 are exemplary and intended to be used for explanation of the invention, and should not be construed as limiting the invention.
Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" - "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise specifically stated or limited, the terms "mounted" - "connected" - "fixed" and the like are to be understood in a broad sense, and for example, may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1 to 4, on the one hand, the camera gear position linear switching device provided in the embodiment of the present invention includes a base 2 and a zoom guide holder 15, a motor 6 is disposed on the base 2, an output end of the motor 6 is fixedly connected to one end of a driving arm 9, the other end of the driving arm 9 is hinged to a driven arm 13, a moving block 14 is sleeved on the driven arm 13, the driven arm 13 can slide in the moving block 14 along a vertical direction, a zoom lens group 16 is disposed in the zoom guide holder 15, the zoom lens group 16 can move in the zoom guide holder 15 along a horizontal direction, the zoom lens group 16 is connected to the moving block 14, a sliding groove is formed in the zoom guide holder 15 along a horizontal direction, and the moving block 14 can move along the sliding groove.
In the embodiment of the invention, the motor 6 drives the driving arm 9 to rotate, the driving arm 9 drives the driven arm 13 to slide up and down in the moving block 14, so as to drive the moving block 14 and the zoom lens group 16 to move along the horizontal direction, and the movement of the zoom lens group 16 realizes the rapid switching of the gears of the zoom lens group 16.
Specifically, the motor 6 can be set to drive the driving arm 9 to rotate by an angle, the driving arm 9 rotates, and when the rotation angle of the driving arm 9 is 0 °, the zoom lens group 16 is driven to switch to the first gear; when the rotation angle of the driving arm 9 is 180 degrees, the zoom lens group 16 is driven to switch to a second gear; when the rotation angle of the driving arm 9 is 45 degrees, the zoom lens group 16 is driven to switch to a third gear; when the rotation angle of the driving arm 9 is 45 degrees, the zoom lens group 16 is driven to switch to a third gear; when the rotation angle of the driving arm 9 is 315 °, the zoom lens group 16 is driven to switch to the third gear. The precise zooming of the zooming lens group 16 is realized.
Further, a motor bracket 7 is mounted on the base 2 through screws, and the motor 6 is mounted on the motor bracket 7 through screws.
The output end of the motor 6 is connected with a coupler, the coupler is connected with one end of a driving shaft 10, and the other end of the driving shaft 10 is connected with a driving arm 9.
The other end of the driving arm 9 is fixedly connected with a driven arm shaft 17, and the driven arm shaft 17 is connected with the driven arm 13 through a driven arm bearing 24.
Specifically, a mounting hole is formed in the base 2, the driving shaft 10 is located in the mounting hole, a driving bearing 20 and a bearing spacer ring 23 are sequentially sleeved on the driving shaft 10, a bearing inner pressing ring 21 is installed on the driving shaft 10 through threads, and the bearing inner pressing ring 21 locks an inner ring of the driving bearing 20; a bearing outer pressing ring 22 is installed in the installation hole through threads, and the bearing outer pressing ring 22 locks the outer ring of the driving bearing 20.
In the embodiment of the present invention, the driving arm 9 is provided with a limiting blocking piece 25, two sides of the base 2 are respectively provided with a first switch frame 3 and a second switch frame 11, the first switch frame 3 is provided with a first state switch 4, the second switch frame 11 is provided with a second state switch 12, the limiting blocking piece 25 can be respectively matched with the first state switch 4 and the second state switch 12, and the first state switch 4 and the second state switch 12 can respectively control the motor 6.
Specifically, the first state switch 4 and the second state switch 12 can respectively control the motor 6 to be locked or powered down; when the motor 6 is locked or powered off, the rotation angle of the driving arm 9 is kept at the rotation angle of the driving arm 9 when the motor 6 is locked or powered off, so that the zooming of the zooming lens group 16 is accurately controlled.
In the embodiment of the present invention, the base 2 is respectively provided with a first limit stop 27 and a second limit stop 26, and the first limit stop 27 and the second limit stop 26 can limit the rotation angle of the driving arm 9 to be 0-180 °. When the driving arm 9 is in the shift position switching state, the driving arm 9 stops rotating due to being blocked by the first limit stop 27 or the second limit stop 26, the driving arm 9 is kept at the position where the rotation is stopped, and the zoom lens group 16 is zoomed more accurately.
Furthermore, one end of a tension spring 18 is connected to the driving arm 9, and the other end of the tension spring 18 is fixed on the base 2.
If the first state switch 4 and the second state switch 12 respectively control the motor 6 to lock, the rotation angle of the driving arm 9 is kept at the rotation angle of the driving arm 9 when the motor 6 locks, and the tension spring 18 further tensions the driving arm 9.
If the first state switch 4 and the second state switch 12 respectively control the power-down of the motor 6:
in the process that the zooming mirror group 16 is zoomed to the first gear from the second gear, the motor 6 drives the driving arm 9 to rotate to the first limit stop 27, the limit stop piece 25 is matched with the first state switch 4, the first state switch 4 controls the motor 6 to power down, the rotating angle of the driving arm 9 is kept at the rotating angle of the driving arm 9 when the motor 6 powers down, in order to prevent the driving arm 9 from rotating after the motor 6 powers down, the tension spring 18 tensions the driving arm 9, the rotating angle of the driving arm 9 is fixed, and the gear of the zooming mirror group 16 is accurately switched to the first gear.
In the process that the zooming mirror group 16 is zoomed from a first gear to a second gear, the motor 6 drives the driving arm 9 to rotate to a second limit stop 26, the limit stop 25 is matched with the second state switch 12, the second state switch 12 controls the motor 6 to power down, the rotating angle of the driving arm 9 is kept at the rotating angle of the driving arm 9 when the motor 6 powers down, in order to prevent the driving arm 9 from rotating after the motor 6 powers down, the tension spring 18 tensions the driving arm 9, the rotating angle of the driving arm 9 is fixed, and the gear of the zooming mirror group 16 is accurately switched to the first gear.
Further, one end of the tension spring 18 may be fixed to the driving arm 9 by a tension spring fixing screw 5, and the other end of the tension spring 18 may be fixed to the base 2 by a tension spring fixing seat 19.
Further, the base 2 and the zooming guide seat 15 are both installed on the installation platform 1.
In the above embodiments of the present invention, the limit stop 25 may be mounted on the driving arm 9 by means of screws, rivets, welding, glue connection or snap connection. The first limit stop 27 may be fixed to the base 2 by means of screws, rivets, welding, glue or snap-fit.
The second limit stop 26 may be fixed to the base 2 by means of screws, rivets, welding, glue or snap-fit.
The first limit stopper 27 and the second limit stopper 26 may be installed at both corresponding sides of the base 2.
The first state switch 4 can be fixed on the first switch frame 3 by means of screws, rivets, welding, glue or snap connections.
The second state switch 12 may be fixed on the second switch frame 11 by means of screws, rivets, welding, glue or snap-fit.
One end of the tension spring 18 can be fixed on the driving arm 9 through a screw, a rivet, welding, glue connection or buckle connection mode, and the other end can be fixed on the base 2 through a tension spring fixing seat 19.
In the above embodiments of the present invention, the gear shift of the camera gear linear switching device may be a two-gear shift or a three-gear shift; the shift may be a shift between a long focus range and a short focus range, or may be a shift between a first long focus range, a second long focus range, a first short focus range, a second short focus range, or the like.
On the other hand, an embodiment of the present invention provides a camera, including the camera-gear-position linear switching device described in the foregoing embodiments.
The present invention is not limited to the above preferred embodiments, and any modification, equivalent replacement and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a camera gear straight line auto-change over device which characterized in that: the zoom lens group mechanism comprises a base (2) and a zoom guide seat (15), wherein a motor (6) is arranged on the base (2), the output end of the motor (6) is fixedly connected with one end of a driving arm (9), the other end of the driving arm (9) is hinged with a driven arm (13), a moving block (14) is sleeved on the driven arm (13), the driven arm (13) can slide in the moving block (14) along the vertical direction, a zoom lens group (16) is arranged in the zoom guide seat (15), the zoom lens group (16) can move in the zoom guide seat (15) along the horizontal direction, the zoom lens group (16) is connected with the moving block (14), a sliding groove is formed in the zoom guide seat (15) along the horizontal direction, and the moving block (14) can move along the sliding groove; set up spacing separation blade (25) on actuating arm (9), the both sides of base (2) set up first switch frame (3) and second switch frame (11) respectively, install first state switch (4) on first switch frame (3), install second state switch (12) on second switch frame (11), spacing separation blade (25) can cooperate with first state switch (4) and second state switch (12) respectively, and first state switch (4) and second state switch (12) can control motor (6) respectively.
2. The camera-gear linear switching device according to claim 1, characterized in that: the base (2) is provided with a first limit stop (27) and a second limit stop (26) respectively, and the first limit stop (27) and the second limit stop (26) can limit the rotation angle of the driving arm (9) to be 0-180 degrees.
3. The camera-gear linear switching device according to claim 2, characterized in that: one end of a tension spring (18) is connected to the driving arm (9), and the other end of the tension spring (18) is fixed to the base (2).
4. The camera-gear linear switching device according to claim 1, characterized in that: the output end of the motor (6) is connected with a coupler, the coupler is connected with one end of a driving shaft (10), and the other end of the driving shaft (10) is connected with a driving arm (9).
5. The camera-gear linear switching device according to claim 1, characterized in that: the other end of the driving arm (9) is fixedly connected with a driven arm shaft (17), and the driven arm shaft (17) is connected with a driven arm (13) through a driven arm bearing (24).
6. The camera-gear linear switching device according to claim 5, wherein: the bearing inner pressing ring locking device is characterized in that a mounting hole is formed in the base (2), the driving shaft (10) is located in the mounting hole, a driving bearing (20) and a bearing spacer ring (23) are sequentially sleeved on the driving shaft (10), a bearing inner pressing ring (21) is installed on the driving shaft (10) through threads, and the bearing inner pressing ring (21) locks an inner ring of the driving bearing (20); and a bearing outer pressing ring (22) is arranged in the mounting hole through threads, and the bearing outer pressing ring (22) locks an outer ring of the driving bearing (20).
7. An optical camera, characterized by: the camera gear linear switching device comprises the camera gear linear switching device as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811541498.7A CN109613786B (en) | 2018-12-17 | 2018-12-17 | Camera gear linear switching device and optical camera |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811541498.7A CN109613786B (en) | 2018-12-17 | 2018-12-17 | Camera gear linear switching device and optical camera |
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| CN109613786A CN109613786A (en) | 2019-04-12 |
| CN109613786B true CN109613786B (en) | 2020-10-13 |
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| CN201811541498.7A Active CN109613786B (en) | 2018-12-17 | 2018-12-17 | Camera gear linear switching device and optical camera |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203311078U (en) * | 2013-06-18 | 2013-11-27 | 红蝶科技(深圳)有限公司 | Focusing device and projecting system |
| CN106125460A (en) * | 2016-08-30 | 2016-11-16 | 杭州日月电子有限公司 | A kind of vehicle-mounted step-by-step movement straight line optical-filter switcher |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011053654A (en) * | 2009-08-04 | 2011-03-17 | Ricoh Co Ltd | Lens drive device and camera |
| CN102937737B (en) * | 2012-11-12 | 2015-04-29 | 中国船舶重工集团公司第七一七研究所 | Magnification shifting device for three-gear zoom lens |
| CN104076479B (en) * | 2013-03-28 | 2017-07-14 | 浙江大华技术股份有限公司 | Lens barrel sliding block, amasthenic lens, image capture device, controller and control method |
| CN107608049B (en) * | 2017-09-13 | 2020-01-14 | 中国航空工业集团公司洛阳电光设备研究所 | High-rigidity crank slider optical lens group switching mechanism |
| CN107907966B (en) * | 2017-11-25 | 2019-11-05 | 中国科学院长春光学精密机械与物理研究所 | Reflecting mirror switching mechanism |
| CN207676031U (en) * | 2017-12-13 | 2018-07-31 | 深圳市联赢激光股份有限公司 | A kind of time light-dividing device of speculum |
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2018
- 2018-12-17 CN CN201811541498.7A patent/CN109613786B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203311078U (en) * | 2013-06-18 | 2013-11-27 | 红蝶科技(深圳)有限公司 | Focusing device and projecting system |
| CN106125460A (en) * | 2016-08-30 | 2016-11-16 | 杭州日月电子有限公司 | A kind of vehicle-mounted step-by-step movement straight line optical-filter switcher |
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