CN221595382U - Focusing structure and imaging device of many focusing modes - Google Patents
Focusing structure and imaging device of many focusing modes Download PDFInfo
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- CN221595382U CN221595382U CN202323606063.5U CN202323606063U CN221595382U CN 221595382 U CN221595382 U CN 221595382U CN 202323606063 U CN202323606063 U CN 202323606063U CN 221595382 U CN221595382 U CN 221595382U
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- 238000012634 optical imaging Methods 0.000 abstract description 3
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Abstract
The utility model belongs to the field of optical imaging, and particularly relates to a focusing structure of a multi-focusing mode and an imaging device. The utility model provides a focusing structure of a multi-focusing mode and an imaging device, which can enable the focusing structure to realize the focusing by arranging a driving unit on the center of a bracket unit and connecting a movable unit at the output end of the driving unit: 1. the focusing structure and the driving equipment of the imaging device are positioned at the center of the moving part, so that the moment is further reduced, and the stability of the structure is ensured; 2. the focusing structure and the imaging device are simple in overall structure, can be realized by adopting the existing common parts, and can reduce the processing difficulty and save the cost.
Description
Technical Field
The utility model belongs to the field of optical imaging, and particularly relates to a focusing structure of a multi-focusing mode and an imaging device.
Background
In the prior art, the optical imaging focusing technology mainly adjusts the focal length by installing a stepping motor on the side surface, a complex installation bracket is needed at first, and because the assembly is complex and the accumulated error of the assembly is larger, the requirements on the processing and positioning and guiding of parts are increased, so that the processing cost and the assembly difficulty are increased; secondly, because the side focusing can cause the increase of the moment generated by the movable part, higher cost is required to be paid, and various adverse effects such as unbalanced moment and the like are extremely easy to generate; finally, the motor rotating shaft mostly adopts a screw rod structure, so that the processing difficulty is increased to a certain extent.
The patent publication No. CN217787476U, publication day 2022.11.11, discloses a lens focusing structure and imaging device thereof, comprising: knob, worm, gear, connecting piece, camera lens subassembly, the worm is connected to the knob.
The general use method and advantages of the lens focusing structure in the Chinese patent are as follows: by rotating the knob, the worm connected with the knob rotates, the bevel gear connected with the worm rotates along with the worm, and the lens component is connected with the bevel gear in a matched manner to drive the lens component to rotate; the small end of the stepped shaft of the lens assembly is in threaded connection with the small hole of the first stepped hole, the lens assembly rotates along the first internal thread through the first external thread and moves up and down along the first internal thread, and therefore focusing is achieved.
However, the lens focusing structure has at least the following disadvantages in the actual use process, in other words, the technical problems to be solved by the utility model are:
1. The driving component of the lens focusing structure is positioned at the side end of the structure, so that the moment is large and unbalance is easily caused;
2. The lens focusing structure is complex to install, and needs an additional transmission structure to convert the circular motion of the motor into linear motion, so that the efficiency is low.
Therefore, in view of the above, there is an urgent need for a lens focusing structure with simple structure and stable moment and an imaging device to solve the above problems.
Disclosure of utility model
The utility model provides a focusing structure of a multi-focusing mode and an imaging device, which can enable the focusing structure to realize the focusing by arranging a driving unit on the center of a bracket unit and connecting a movable unit at the output end of the driving unit: 1. the focusing structure and the driving equipment of the imaging device are positioned at the center of the moving part, so that the moment is further reduced, and the stability of the structure is ensured; 2. the focusing structure and the imaging device are simple in overall structure, can be realized by adopting the existing common parts, and can reduce the processing difficulty and save the cost.
The utility model adopts the technical proposal that: a focusing structure with a multi-focusing mode comprises a bracket unit, a driving unit arranged at the center of the bracket unit and a movable unit arranged inside the bracket unit and connected with the driving unit; the movable unit comprises a movable block arranged at the output end of the driving unit, an upper connecting plate arranged on the movable block and synchronously moving along with the movable block, and a lower connecting plate arranged below the upper connecting plate and used for installing a lens assembly.
The further preferable technical scheme is as follows: the driving unit comprises a stepping motor arranged on the bracket unit and a screw shaft arranged on the output end of the stepping motor and in threaded connection with the movable block; the support unit comprises a guide shaft which is arranged on the upper connecting plate and the lower connecting plate in a penetrating mode and parallel to the screw shaft.
The further preferable technical scheme is as follows: the support unit also comprises a main support for installing the movable unit and an auxiliary support arranged at the lower end of the main support.
The further preferable technical scheme is as follows: the movable unit further comprises a connecting column which is arranged between the upper connecting plate and the lower connecting plate and two ends of which are detachably connected with the upper connecting plate and the lower connecting plate respectively.
The further preferable technical scheme is as follows: one end of the guide shaft is connected with the inner bottom surface of the auxiliary bracket.
The further preferable technical scheme is as follows: one end of the guide shaft is detachably connected with the inner top surface of the main support.
The further preferable technical scheme is as follows: and two ends of the guide shaft are detachably connected with the main support and the auxiliary support respectively.
The further preferable technical scheme is as follows: the driving unit also comprises a driver for controlling the stepping motor and a controller electrically connected with the driver for realizing automatic control focusing
The further preferable technical scheme is as follows: the upper end of the main support is provided with a boss structure for installing the stepping motor.
Another object of the present utility model is to provide an imaging apparatus including the focusing structure of any of the above multi-focusing modes.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is an internal elevational cross-section of the present utility model;
FIG. 3 is a schematic diagram of a movable unit according to the present utility model;
FIG. 4 is a schematic diagram of a driving unit according to the present utility model;
FIG. 5 is a main support of the present utility model;
Fig. 6 is a secondary stent of the present utility model.
In the drawings, the meanings of the reference numerals are as follows:
A bracket unit 1, a driving unit 2 and a movable unit 3;
The device comprises a guide shaft 11, a main support 12, an auxiliary support 13, a stepping motor 21, a screw shaft 22, a movable block 31, an upper connecting plate 32, a lower connecting plate 33 and a connecting column 34;
A boss structure 121;
Detailed Description
The following detailed description of the embodiments of the utility model is provided merely as a preferred embodiment of the utility model and is not intended to limit the scope of the utility model.
The terms of orientation such as up, down, left, right, front, rear, front, back, top, bottom, etc. mentioned or possible in this specification are defined with respect to the configurations shown in the drawings, and the terms "inner" and "outer" refer to the relative concepts of the terms toward or away from the geometric center of a particular component, respectively, and thus may be changed accordingly depending on the location and use state of the component. These and other directional terms should not be construed as limiting terms.
As shown in fig. 1-6, a focusing structure of a multi-focusing mode comprises a bracket unit 1, a driving unit 2 arranged at the center of the bracket unit 1, and a movable unit 3 arranged inside the bracket unit 1 and connected with the driving unit 2; the movable unit 3 includes a movable block 31 provided at an output end of the driving unit 2, an upper connection plate 32 provided on the movable block 31 and moving in synchronization with the movable block 31, and a lower connection plate 33 provided below the upper connection plate 32 and for mounting a lens assembly.
In this embodiment, the general method of using the multi-focusing structure is as follows:
The driving unit 2 is connected to the centroid or the mass center of the support unit 1, the driving unit 2 passes through the support unit 1 and is connected with the movable unit 3 arranged inside the support unit 1, wherein the movable block 31 of the movable unit 3 is connected with the output end of the driving unit 2, the movable block 31 is integrally connected with the upper connecting plate 32, the lower connecting plate 33 is connected below the upper connecting plate 32 so that the upper connecting plate and the lower connecting plate synchronously move, and the lower connecting plate 33 is provided with a lens component; when the driving unit 2 works, the movable block 31 of the movable unit 3 is driven to move in the direction vertical to the center of the bracket unit 1, so that the moment generated in the moving process is reduced.
The driving unit 2 comprises a stepping motor 21 arranged on the bracket unit 1 and a screw shaft 22 arranged on the output end of the stepping motor 21 and in threaded connection with the movable block 31; the stand unit 1 includes a guide shaft 11 penetrating through the upper and lower connection plates 32 and 33 and parallel to the screw shaft 22.
In this embodiment, the driving unit 2 includes a stepper motor 21 disposed on the stand unit 1, and the stepper motor is a pulse motor, and compared with other control motors, the stepper motor can receive the digital control signal and convert the digital control signal into a linear displacement corresponding to the digital control signal, and the stepper motor itself has completed conversion of the digital mode, thereby reducing the cost; a screw shaft 22 is arranged at the output end of the stepping motor 21, a hole is formed in the center of the bracket unit 1 for the screw shaft 22 to pass through, a movable block 31 is connected on the screw shaft 22 in a threaded manner, and a guide shaft 11 is vertically and penetratingly arranged on an upper connecting plate 32 and a lower connecting plate 33 which are connected with the movable block 31; when the stepping motor 21 drives the screw shaft 22 to rotate, the forward and reverse rotation of the screw shaft 22 drives the movable block 31 and the upper and lower connection plates to rotate synchronously, and at this time, the guide shafts 11 parallel to the screw shaft 22 and penetrating through the upper connection plate 32 and the lower connection plate 33 limit the rotation of the upper and lower connection plates, so that the relative movement between the movable block 31 and the screw shaft 22 occurs, the rotation of the stepping motor 21 is converted into the linear movement of the movable unit 3 along the length direction of the screw shaft 22, and the position of the lens assembly arranged on the lower connection plate 33 is adjusted to realize focusing.
The stand unit 1 further includes a main stand 12 for mounting the movable unit 3 and an auxiliary stand 13 provided at a lower end of the main stand 12.
In the embodiment, the bracket unit 1 can be divided into two parts which are detachably connected, namely a main bracket 12 serving as a cover body and an auxiliary bracket 13 serving as a bottom plate, so that the maintenance or the adjustment of the internal device of the bracket is facilitated; the sub-mount 13 is provided with a hole through which a lens assembly provided on the lower connection plate 33 passes.
The movable unit 3 further includes a connection post 34 provided between the upper connection plate 32 and the lower connection plate 33 and having both ends detachably connected to the upper connection plate 32 and the lower connection plate 33, respectively.
In this embodiment, a plurality of corresponding connection holes are formed on the upper connection plate 32 and the lower connection plate 33, and the connection columns 34 penetrate through the connection holes to realize detachable connection between the upper connection plate and the lower connection plate, and the height of the connection columns 34 can be adjusted and replaced at any time according to different practical application scenes.
One end of the guide shaft 11 is connected with the inner bottom surface of the auxiliary bracket 13.
In this embodiment, the lower end of the guide shaft 11 may be fixedly connected or detachably connected to the inner bottom surface of the auxiliary bracket 13, and the user may detach the auxiliary bracket 13 from the main bracket 12, so that the guide shaft 11 is separated from the upper and lower connection plates, and perform focusing manually.
One end of the guide shaft 11 is detachably connected with the inner top surface of the main support 12.
In this embodiment, the upper end of the guide shaft 11 is detachably connected to the inner top surface of the main support 12, and after the user separates the auxiliary support 13 from the main support 12, the guide shaft 11 is detached from the main support 12, so that the guide shaft 11 is pulled out and then manual focusing is performed.
The two ends of the guide shaft 11 are detachably connected with the main bracket 12 and the auxiliary bracket 13 respectively.
In this embodiment, two ends of the guide shaft 11 are respectively connected with the main support 12 and the auxiliary support 13, and are both detachably connected to facilitate switching to a manual focusing mode, which can ensure stability of the structure during operation more than a mode of connecting one end.
The driving unit 2 further includes a driver for controlling the stepping motor 21 and a controller electrically connected to the driver to realize automatic control of focusing.
In this embodiment, as shown in patent publication No. CN218638798U, the driving unit 2 further includes a position detector, a driver, a controller, and the like, and the detector performs autofocus by detecting the focal position, feeding back to the controller, and sending an instruction from the controller to the driver.
The upper end of the main support 12 is provided with a boss structure 121 for mounting the stepping motor 21.
In this embodiment, the boss structure 121 is matched with the shape of the stepper motor 21, so that the displacement of the stepper motor 21 is limited to a certain extent, the driving unit 2 is ensured to be kept at the centroid or the centroid position of the bracket unit 1, and the offset and the distortion caused by rotation can not occur in the movement process.
In other embodiments, an imaging device is provided that includes any of the focusing structures described above.
The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited to the above embodiments, and various modifications may be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model. These are all non-inventive modifications which are intended to be protected by the patent laws within the scope of the appended claims.
Claims (10)
1. A focusing structure of many focusing modes, its characterized in that: comprises a bracket unit (1), a driving unit (2) arranged at the center of the bracket unit (1) and a movable unit (3) arranged inside the bracket unit (1) and connected with the driving unit (2); the movable unit (3) comprises a movable block (31) arranged at the output end of the driving unit (2), an upper connecting plate (32) arranged on the movable block (31) and synchronously moving along with the movable block (31), and a lower connecting plate (33) arranged below the upper connecting plate (32) and used for installing a lens assembly.
2. The multi-focusing structure according to claim 1, wherein: the driving unit (2) comprises a stepping motor (21) arranged on the bracket unit (1) and a screw shaft (22) arranged on the output end of the stepping motor (21) and in threaded connection with the movable block (31); the bracket unit (1) comprises a guide shaft (11) which is arranged on the upper connecting plate (32) and the lower connecting plate (33) in a penetrating way and is parallel to the screw shaft (22).
3. The multi-focusing structure according to claim 2, wherein: the support unit (1) further comprises a main support (12) for mounting the movable unit (3) and an auxiliary support (13) arranged at the lower end of the main support (12).
4. The multi-focusing structure according to claim 1, wherein: the movable unit (3) further comprises a connecting column (34) which is arranged between the upper connecting plate (32) and the lower connecting plate (33) and two ends of which are detachably connected with the upper connecting plate (32) and the lower connecting plate (33) respectively.
5. A multi-focusing structure according to claim 3, wherein: one end of the guide shaft (11) is connected with the inner bottom surface of the auxiliary bracket (13).
6. A multi-focusing structure according to claim 3, wherein: one end of the guide shaft (11) is detachably connected with the inner top surface of the main support (12).
7. A multi-focusing structure according to claim 3, wherein: the two ends of the guide shaft (11) are detachably connected with the main support (12) and the auxiliary support (13) respectively.
8. The multi-focusing structure according to claim 2, wherein: the driving unit (2) further comprises a driver for controlling the stepping motor (21) and a controller electrically connected with the driver for realizing automatic control focusing.
9. A multi-focusing structure according to claim 3, wherein: the upper end of the main support (12) is provided with a boss structure (121) for installing the stepping motor (21).
10. An image forming apparatus, characterized in that: a focusing structure comprising a multi-focusing method according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323606063.5U CN221595382U (en) | 2023-12-28 | 2023-12-28 | Focusing structure and imaging device of many focusing modes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323606063.5U CN221595382U (en) | 2023-12-28 | 2023-12-28 | Focusing structure and imaging device of many focusing modes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221595382U true CN221595382U (en) | 2024-08-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323606063.5U Active CN221595382U (en) | 2023-12-28 | 2023-12-28 | Focusing structure and imaging device of many focusing modes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221595382U (en) |
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2023
- 2023-12-28 CN CN202323606063.5U patent/CN221595382U/en active Active
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