CN206321853U - A kind of civilian security lens structure with automatic focusing function - Google Patents
A kind of civilian security lens structure with automatic focusing function Download PDFInfo
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- CN206321853U CN206321853U CN201621367359.3U CN201621367359U CN206321853U CN 206321853 U CN206321853 U CN 206321853U CN 201621367359 U CN201621367359 U CN 201621367359U CN 206321853 U CN206321853 U CN 206321853U
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- imaging lens
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- motor
- screw rod
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Abstract
A kind of civilian security lens structure with automatic focusing function, including the cover plate being arranged in mounting seat, the fitting recess for accommodating imager chip is offered in the mounting seat, imaging lens group is provided with before being located at imager chip in the cavity that mounting seat is surrounded jointly with cover plate, fitting recess is connected with cavity；The side of the imaging lens group is provided with the position-limiting unit for being constrained to move along its axis direction as lens set, and the side of the imaging lens group is additionally provided with the motor for driving imaging lens group to be moved along its axis direction.The imaging lens group includes lens barrel and the lens being arranged in lens barrel, stretch out setting projection in the middle part of lens barrel, first through hole is offered on the projection, lead column is provided with the first through hole, the shaft core direction of the lead column is parallel with the shaft core direction of imaging lens group, and the two ends of lead column are separately fixed in mounting seat and cover plate.The characteristics of the utility model has compact conformation and thickness of thin.
Description
Technical field
The utility model is related to a kind of civilian security lens structure with automatic focusing function.
Background technology
In recent years, digital processing technique and network transfer speeds continue to optimize lifting, and mobile network becomes increasingly popular, and movement is set
Standby function is continuously available enhancing.Video monitoring security protection is progressively converted into development in pluralism, civilian prison from the engineering of early stage
The potential of demand for controlling camera lens application market is huge.Compared with traditional monitoring device, civilian monitoring camera product is multiplex in family
In security protection and life ＆ amusement, it needs to have intelligent automatic focusing function to obtain more preferable image quality, in addition it is also necessary to smaller body
Product is with Portable belt.
In the prior art, traditional fixed focus lens auto-focusing mode typically uses the following two kinds scheme：One is to adopt
The screw rod carried with stepper motor drives camera lens movement；Another way is voice coil motor driving camera lens movement.The first scheme
Although design is simple, camera lens optical axis direction thickness is too big so that camera lens volume is larger, not Portable belt；Second scheme is focused
Stroke is relatively short, and the voice coil motor life-span is shorter, it is difficult to meet the use requirement in terms of civilian security protection, in addition its control aspect
Motor is needed persistently to be powered, energy consumption is higher.
Utility model content
The purpose of this utility model aims to provide a kind of compact conformation, the civilian security protection with automatic focusing function of thickness of thin
Lens construction, to overcome weak point of the prior art.
A kind of civilian security lens structure with automatic focusing function designed by this purpose, including be arranged in mounting seat
Cover plate, its architectural feature is that the fitting recess for accommodating imager chip is offered in the mounting seat, and mounting seat and cover plate are total to
Imaging lens group is provided with the cavity surrounded and before imager chip, fitting recess is connected with cavity；The imaging lens
The side of piece group is provided with the position-limiting unit for being constrained to move along its axis direction as lens set, the imaging lens group
Side is additionally provided with the motor for driving imaging lens group to be moved along its axis direction.
Further, the imaging lens group includes lens barrel and the lens that are arranged in lens barrel, and the middle part of lens barrel is to extension
Stretch to offer on setting projection, the projection and lead column, the axle of the lead column are provided with first through hole, the first through hole
Core direction is parallel with the shaft core direction of imaging lens group, and the two ends of lead column are separately fixed in mounting seat and cover plate, lead column
The position-limiting unit is constituted with first through hole.
Further, the lead column is two.
Further, the motor is connected with imaging lens group by some gears, screw rod and nut and drives imaging lens
Piece group is moved, and the shaft core direction of the axle of the motor, the shaft core of screw rod respectively with imaging lens group be arranged in parallel, and the motor leads to
Gear drive screw turns are crossed, screw rod constitutes nut-screw rod with nut and coordinated, and the lens barrel is arranged on nut.
Further, the gear include be first gear, second gear and the 3rd gear, wherein, first gear is fixed on
On the axle of motor, the 3rd gear is fixed on screw rod, and second gear is meshed with first gear, the 3rd gear respectively, the first tooth
During wheel, second gear and the 3rd gear are generally aligned in the same plane.
Further, the second through hole is additionally provided with the projection, the aperture of second through hole is more than the bar footpath of screw rod, screw rod
Passed through from the second through hole, the side that screw rod is located at the second through hole sets described nut, and screw rod is located at the another of the second through hole
Side is arranged with stage clip, and the stage clip is crimped between projection and mounting seat.
Further, the infrared ray that the position for detecting imaging lens group is additionally provided between the mounting seat and lens barrel is passed
Sensor.
Further, the motor is stepper motor.
Further, the motor connects with geared screw transmission mechanism, and motor is electrically connected with pulse control unit and by it
Control.
The fitting recess for accommodating imager chip is offered in mounting seat in the utility model, mounting seat is common with cover plate
Imaging lens group is provided with before being located at imager chip in the cavity surrounded, fitting recess is connected with cavity；The imaging lens group
Side be provided with position-limiting unit for being constrained to move along its axis direction as lens set, the side of the imaging lens group
It is additionally provided with the motor for driving imaging lens group to be moved along its axis direction；Then, stepper motor, geared screw are driven
Mechanism and position-limiting unit are arranged on the side of imaging lens group, can effectively reduce camera lens optical axis with each part of compact Layout
To thickness.
Motor in the utility model connects with geared screw transmission mechanism, motor electrically connected with pulse control unit and by
It is controlled；Stepper motor adds geared screw transmission mechanism, during auto-focusing, passes through the Pulse Width Control list of external circuit
Member, the function of possessing disconnected electronic lock, relative to the more effective energy-conservation of voice coil motor, and service life also has a clear superiority.
The side that screw rod in the utility model is located at the second through hole sets described nut, and screw rod is located at the second through hole
Opposite side is arranged with stage clip, and the stage clip is crimped between projection and mounting seat, and the elastic force of stage clip seats against projection in nut
On, it is ensured that it connects reliability each other.
Lead column in the utility model is two；If only spacing by a lead column composition, imaging lens group can
It is able to can shift, therefore, the lead column is two so that imaging lens group smoothly pleasing to the eye two lead columns can be moved
It is dynamic, it is ensured that the reliability of mechanism kinematic.
Motor in the utility model is connected with imaging lens group by some gears, screw rod and nut and drives imaging
Lens set is moved, and the shaft core direction of the axle of motor, the shaft core of screw rod respectively with imaging lens group be arranged in parallel, and the motor passes through
Gear drive screw turns, screw rod constitutes nut-screw rod with nut and coordinated, and the lens barrel is arranged on nut；Due to nut-screw rod
Cooperation occupies little space, and adjusts more accurate, with very suitable herein, and motor is a less stepper motor of volume,
So, the thickness for reducing camera lens optical axis direction as much as possible.
In summary, the characteristics of the utility model has compact conformation, thickness of thin, can realize civilian security protection fixed focal length
The requirement of camera lens automatic focusing function, and meet requirement of the civilian security protection to volume.
Brief description of the drawings
Fig. 1 is the biopsy cavity marker devices schematic diagram of the embodiment of the utility model one.
Fig. 2 is top perspective structural representation of the present utility model.
Fig. 3 is side perspective structural representation of the present utility model.
In figure：10 be mounting seat, and 20 be cover plate, and 30 be imager chip, and 40 be imaging lens group, and 41 be lens barrel, and 50 be electricity
Machine, 60 be lead column, and 711 be first gear, and 712 be second gear, and 713 be the 3rd gear, and 72 be screw rod, and 73 be nut, 74
For stage clip.
Embodiment
Below in conjunction with the accompanying drawings and embodiment is further described to the utility model.
Referring to Fig. 1-Fig. 3, this civilian security lens structure with automatic focusing function, including it is arranged in mounting seat 10
Offer the fitting recess for accommodating imager chip 30 in cover plate 20, the mounting seat 10, mounting seat 10 and cover plate 20 enclose and
Into cavity in be located at imager chip 30 before be provided with imaging lens group 40, fitting recess is connected with cavity；The imaging lens
The side of group 40 is provided with the position-limiting unit for being constrained to move along its axis direction as lens set 40, the imaging lens group
40 side is additionally provided with the motor 50 for driving imaging lens group 40 to be moved along its axis direction.The motor 50 is stepping
Motor.
In the present embodiment, motor 50 and position-limiting unit are arranged on to the side of imaging lens group 40, can be with compact Layout
Each part, can effectively reduce camera lens volume.
The focusing is the IMAQ plane of imager chip 30 by the focal plane of camera lens optimal imaging and collection image
Overlap, to obtain optimal image；Because imaging lens group 40 is shooting the scenery of different distance, focal plane has small
Change, need to realize that focus is overlapped with the IMAQ plane of imager chip 30 by automatic focusing function.The utility model is exactly to tie
Peripheral circuit is closed according to image quality is judged, the stepper motor 50 of this structure is driven by pulse singaling, makes lens group
Focal plane is overlapped with imager chip focal plane, to realize automatic focusing function.
Position-limiting unit is preferred to use following manner setting：The imaging lens group 40 includes lens barrel 41 and is arranged on lens barrel
Lens in 41, the middle part of lens barrel 41 stretches out setting projection, and first through hole, the first through hole are offered on the projection
In be provided with lead column 60, the shaft core direction of the lead column 60 is parallel with the shaft core direction of imaging lens group 40, lead column 60
Two ends be separately fixed in mounting seat 10 and cover plate 20, lead column 60 and first through hole constitute the position-limiting unit.
The projection arranged by the stage casing of lens barrel 41, constitutes spacing cooperation with lead column, implements more convenient.If only
It is made up of a lead column 60 spacing, imaging lens group 40 may shift, here preferably, and the lead column 60 is
Two.Enabling imaging lens group 40, smoothly pleasing to the eye two lead columns 60 are moved.
Because motor 50 there are various ways to drive imaging lens group 40 to move, a kind of more preferred scheme is provided here：
The motor 50 is connected with imaging lens group 40 by some gears, screw rod 72 and nut 73 and drives imaging lens group 40 to transport
Dynamic, the shaft core direction of the axle of the motor 50, the shaft core of screw rod 72 respectively with imaging lens group 40 be arranged in parallel, the motor 50
Rotated by gear drive screw 72, screw rod 72 constitutes nut-screw rod with nut 73 and coordinated, and the lens barrel 41 is arranged on nut 73
On.
Nut-screw rod, which coordinates, to occupy little space, and adjusts more accurate, with very properly, motor 50 is a volume herein
Less stepper motor.
In order to provide certain gearratio, the gear between motor 50 and screw rod 72 is arranged as follows：The gear bag
Include as first gear 711, the gear 713 of second gear 712 and the 3rd, wherein, first gear 711 is fixed on the axle of motor 50,
3rd gear 713 is fixed on screw rod 72, and second gear 712 is meshed with first gear 711, the 3rd gear 713 respectively, and first
During gear 711, the gear 713 of second gear 712 and the 3rd are generally aligned in the same plane.
The gear is processed by TPEE materials.
If directly projection is fixed on nut 73, installation and the renewal part in later stage, here preferably, institute are not easy to
State and be additionally provided with projection the second through hole, the aperture of second through hole is more than the bar footpath of screw rod 72, and screw rod 72 is from the second through hole
Pass through, the side that screw rod 72 is located at the second through hole sets described nut 73, and the opposite side that screw rod 72 is located at the second through hole is arranged
There is stage clip 74, the stage clip 74 is crimped between projection and mounting seat 10.
The elastic force of stage clip 74 seats against projection on nut 73.Stage clip 74 is constantly in compressive state, and its elasticity is extensive
Projection is tightly squeezed on nut 73 by multiple power.
The motor 50 connects with geared screw transmission mechanism, and motor 50 is electrically connected with pulse control unit and controlled by it
System.
In order to which there is individual accurately concept the position to imaging lens group 40, also set up between the mounting seat 10 and lens barrel 41
There is the infrared ray sensor 80 for detecting the position of imaging lens group 40.
Imager chip 30, motor 50 and infrared sensor 80 connect peripheral control circuits by flexible PCB, on
Peripheral control circuits are not just being repeated here.
General principle of the present utility model and principal character and advantage of the present utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, on the premise of the utility model spirit and scope are not departed from, the utility model is also
Various changes and modifications are had, these changes and improvements are both fallen within the range of claimed the utility model.The utility model
Claimed scope is by appending claims and its equivalent thereof.
Claims (9)
1. a kind of civilian security lens structure with automatic focusing function, including the cover plate (20) being arranged in mounting seat (10),
It is characterized in that offering the fitting recess for accommodating imager chip (30), mounting seat (10) and cover plate on the mounting seat (10)
(20) imaging lens group (40) is provided with the cavity surrounded jointly and before imager chip (30), fitting recess is connected with cavity
It is logical；The side of the imaging lens group (40) be provided with for be constrained to as lens set (40) along its axis direction move it is spacing
Unit, the side of the imaging lens group (40) is additionally provided with for driving what imaging lens group (40) was moved along its axis direction
Motor (50).
2. the civilian security lens structure according to claim 1 with automatic focusing function, it is characterized in that the imaging lens
Piece group (40), which includes stretching out in the middle part of lens barrel (41) and the lens being arranged in lens barrel (41), lens barrel (41), sets convex
Offered on block, the projection and lead column (60) is provided with first through hole, the first through hole, the axle of the lead column (60)
Core direction is parallel with the shaft core direction of imaging lens group (40), and the two ends of lead column (60) are separately fixed at mounting seat (10) and lid
On plate (20), lead column (60) constitutes the position-limiting unit with first through hole.
3. the civilian security lens structure according to claim 2 with automatic focusing function, it is characterized in that the lead column
(60) it is two.
4. the civilian security lens structure according to claim 3 with automatic focusing function, it is characterized in that the motor
(50) connected by some gears, screw rod (72) and nut (73) with imaging lens group (40) and drive imaging lens group (40)
Motion, the shaft core direction of the axle of the motor (50), the shaft core of screw rod (72) respectively with imaging lens group (40) be arranged in parallel, institute
State motor (50) to rotate by gear drive screw (72), screw rod (72) constitutes nut-screw rod with nut (73) and coordinated, the mirror
Cylinder (41) is arranged on nut (73).
5. the civilian security lens structure according to claim 4 with automatic focusing function, it is characterized in that the gear bag
Include as first gear (711), second gear (712) and the 3rd gear (713), wherein, first gear (711) is fixed on motor
(50) on axle, the 3rd gear (713) is fixed on screw rod (72), second gear (712) respectively with first gear (711),
Three gears (713) are meshed, during first gear (711), second gear (712) and the 3rd gear (713) are generally aligned in the same plane.
6. the civilian security lens structure according to claim 4 with automatic focusing function, it is characterized in that on the projection
The second through hole is additionally provided with, the aperture of second through hole is more than the bar footpath of screw rod (72), screw rod (72) is passed through from the second through hole,
The side that screw rod (72) is located at the second through hole sets described nut (73), and the opposite side that screw rod (72) is located at the second through hole is arranged
There is stage clip (74), the stage clip (74) is crimped between projection and mounting seat (10).
7. the civilian security lens structure with automatic focusing function according to claim 5 or 6, it is characterized in that described install
The infrared ray sensor (80) of the position for detecting imaging lens group (40) is additionally provided between seat (10) and lens barrel (41).
8. the civilian security lens structure with automatic focusing function according to claim 5 or 6, it is characterized in that the motor
(50) it is stepper motor.
9. the civilian security lens structure according to claim 1 with automatic focusing function, it is characterized in that the motor
(50) connect with geared screw transmission mechanism, motor (50) is electrically connected and is controlled by it with pulse control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621367359.3U CN206321853U (en) | 2016-12-14 | 2016-12-14 | A kind of civilian security lens structure with automatic focusing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621367359.3U CN206321853U (en) | 2016-12-14 | 2016-12-14 | A kind of civilian security lens structure with automatic focusing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206321853U true CN206321853U (en) | 2017-07-11 |
Family
ID=59267266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621367359.3U Active CN206321853U (en) | 2016-12-14 | 2016-12-14 | A kind of civilian security lens structure with automatic focusing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206321853U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108196621A (en) * | 2017-12-29 | 2018-06-22 | 上海与德科技有限公司 | A kind of control method of mobile terminal and mobile terminal |
| CN108200243A (en) * | 2017-12-29 | 2018-06-22 | 上海与德科技有限公司 | A kind of control method of mobile terminal and mobile terminal |
| CN108227837A (en) * | 2017-12-29 | 2018-06-29 | 上海与德科技有限公司 | A kind of control method of mobile terminal and mobile terminal |
| CN110345223A (en) * | 2019-08-05 | 2019-10-18 | 中国工程物理研究院机械制造工艺研究所 | A kind of motorized light mirror holder retarder and regulating member |
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2016
- 2016-12-14 CN CN201621367359.3U patent/CN206321853U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108196621A (en) * | 2017-12-29 | 2018-06-22 | 上海与德科技有限公司 | A kind of control method of mobile terminal and mobile terminal |
| CN108200243A (en) * | 2017-12-29 | 2018-06-22 | 上海与德科技有限公司 | A kind of control method of mobile terminal and mobile terminal |
| CN108227837A (en) * | 2017-12-29 | 2018-06-29 | 上海与德科技有限公司 | A kind of control method of mobile terminal and mobile terminal |
| CN110345223A (en) * | 2019-08-05 | 2019-10-18 | 中国工程物理研究院机械制造工艺研究所 | A kind of motorized light mirror holder retarder and regulating member |
| CN110345223B (en) * | 2019-08-05 | 2024-05-31 | 中国工程物理研究院机械制造工艺研究所 | Electric optical lens frame speed reducer and adjusting part |
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