CN206378668U - The lens assembly focused on automatically is realized using fixed focus lens - Google Patents
The lens assembly focused on automatically is realized using fixed focus lens Download PDFInfo
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- CN206378668U CN206378668U CN201621377860.8U CN201621377860U CN206378668U CN 206378668 U CN206378668 U CN 206378668U CN 201621377860 U CN201621377860 U CN 201621377860U CN 206378668 U CN206378668 U CN 206378668U
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- camera lens
- lens
- fixes sleeve
- circle
- automatically
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Abstract
The utility model is related to the lens assembly realized and focused on automatically using fixed focus lens, including mainboard chip, camera lens mounting seat, camera lens fixes sleeve, tight shot, tune circle and auto focus control motor；The guide pin extended radially outwardly is provided with the periphery wall of tight shot, adjusts the internal perisporium of circle to be provided with and coordinates the guide chute being oriented to guide pin, the barrel of camera lens fixes sleeve is provided with through slot；Auto focus control motor is by transmission device with adjusting circle to be connected；Mainboard chip has auto focus control function, and the control line and power line of auto focus control motor are connected by interface with the auto focus control interface on mainboard chip.The lens assembly need not only consider the factors such as object distance change, day and night confocal and temperature drift in lens design, reduce lens design difficulty and cost, and in object distance change, day and night switching and high/low temperature change when, can automatically be focused on by the mobile realization of tight shot, thus obtain clearly as.
Description
Technical field
The utility model belongs to optical lens, safety monitoring camera technique field, and more particularly to one kind uses fixed focal length
Camera lens realizes the lens assembly focused on automatically.
Background technology
At present, for the holding high definition imaging under varying environment (temperature, day and night) in safety monitoring camera applications field
Demand, the design to camera lens proposes very high requirement, that is, wants infrared visible (day and night) confocal, and extreme height is met again
The degree of temperature -40 is not out of focus to+80 degree.So cause the design difficulty of camera lens very big, cost is high.Even if all examining in the design
Considered day and night confocal, high/low temperature is confocal, but result or unsatisfactory, also also the depth of field the problem of.It is currently mainly to have two kinds
Solution, one is to use power zoom, by the AF (auto focus control) of camera come controlled motor, is focused again.But
More much higher than tight shot using the cost of motorized zoom lenses, definition does not accomplish that tight shot is so high yet, and size
It is much larger, it is unfavorable for the miniaturization of camera product.Another is that camera lens is constant, also or tight shot, but by AF controls before
After move photosensitive imaging chip, this scheme is widely used in mobile phone.But in security protection camera, chip size than larger, and
Usually chip is integrally fixed on mainboard, to drive monoblock camera mainboard module, requires high to drive motor, and add not
Reliability.
Utility model content
The purpose of this utility model is to overcome disadvantage mentioned above to realize automatic focus on using fixed focus lens there is provided one kind
Lens assembly, the lens assembly is relatively fixed motionless mainboard chip using auto focus control motor control tight shot and moves
It is dynamic to be focused on automatically, need not only consider in lens design object distance change, day and night confocal and temperature drift etc. because
Element, reduction lens design difficulty and cost, and in object distance change, day and night switching and during high/low temperature change, can pass through
The mobile realization of tight shot is focused on automatically, thus obtain clearly as.
What the utility model was realized in：A kind of use fixed focus lens realize the lens assembly focused on automatically, its
It is characterised by：Mainboard chip including camera, the camera lens mounting seat being fixedly arranged on mainboard chip, it is fixedly arranged in camera lens mounting seat
Camera lens fixes sleeve, it is coaxial be movably set in camera lens fixes sleeve and can relative camera lens fixes sleeve axial movement focus mirror
Head, the coaxial tune for being movably set in camera lens fixes sleeve periphery are enclosed and are fixedly arranged in camera lens fixes sleeve or camera lens mounting seat
For driving the auto focus control motor for adjusting circle to be rotated relative to camera lens fixes sleeve；Set on the periphery wall of the tight shot
There is the guide pin extended radially outwardly, the internal perisporium of the tune circle is provided with to coordinate with guide pin and is oriented to make when adjusting circle to rotate
Tight shot produces the guide chute of axial displacement with respect to camera lens fixes sleeve, and the barrel of the camera lens fixes sleeve is provided with just
The through slot of camera lens fixes sleeve is extended radially out in guide pin；The auto focus control motor is enclosed by transmission device with adjusting
It is connected to drive tune circle to rotate；The mainboard chip has auto focus control function, the auto focus control motor
Control line and power line be connected by interface with the auto focus control interface on mainboard chip, under mainboard chip control
Auto focus control motor can adjust circle to drive tight shot to realize automatic focusing with respect to mainboard chip axial displacement by driving
Adjustment.
It is preferred that, the guide chute is along the cam skewed slot for adjusting circle internal perisporium axial direction to be threadingly advanced, the insertion
Groove is the flat recess extended in parallel along camera lens fixes sleeve barrel axial direction.When adjusting circle to rotate, tight shot is with respect to camera lens
Fixes sleeve produces the axial displacement of straight line.
It is preferred that, the guide chute is along the flat recess for adjusting circle internal perisporium axial direction to extend in parallel, the through slot
For the cam skewed slot being threadingly advanced along camera lens fixes sleeve barrel axial direction.When adjusting circle to rotate, tight shot is with respect to camera lens
Fixes sleeve both produces axial displacement, and rotation is produced again.
It is preferred that, the transmission device includes the gear being fixedly arranged on auto focus control motor output shaft and is fixedly arranged on
Adjust the rack for the transmission that is meshed on circle periphery wall and with gear.
It is preferred that, the camera lens mounting seat is being provided with IR-Cut switch between mainboard chip and tight shot.
IR-Cut switch can also be not provided with.
It is preferred that, the tight shot is provided with optical filter.Optical filter can also be not provided with.
For prior art, the utility model has advantages below：
(1) the use fixed focus lens that the utility model is provided realize the lens assembly focused on automatically, using automatic poly-
Jiao's control motor control tight shot movement is focused on automatically, and object distance change need not be not only considered in lens design
The factors such as change, day and night confocal and temperature drift, reduction lens design difficulty and cost, and in object distance change, day and night
Switching and high/low temperature change when can automatically be focused on by the mobile realization of tight shot so that obtain clearly as；
(2) the use fixed focus lens that the utility model is provided realize the lens assembly focused on automatically, lens assembly list
Solely in white light environment and under near-infrared environment, imaging effect is good, and its optic back focal can be designed to unanimously, can also design
Into inconsistent；
(3) the use fixed focus lens that the utility model is provided realize the lens assembly focused on automatically, and camera lens is being used
In temperature range, in different temperature points camera lens can blur-free imaging, in different temperature points, its optic back focal can be designed to
Unanimously, it can also be designed to inconsistent；
(4) the use fixed focus lens that the utility model is provided realize the lens assembly focused on automatically, and manufacturing cost is low,
Dependable performance, it is easy to popularization and application.
Brief description of the drawings
The utility model is described in further detail in conjunction with the embodiments with reference to the accompanying drawings：
Fig. 1 is the three-dimensional structure signal that the utility model realizes the lens assembly focused on automatically using fixed focus lens
Figure；
Fig. 2 is Fig. 1 longitudinal section；
Fig. 3 is Fig. 1 three-dimensional structure explosive view；
Fig. 4 is the three dimensional structure diagram of embodiment 2；
Fig. 5 is Fig. 4 longitudinal section；
Fig. 6 is Fig. 4 three-dimensional structure explosive view；
Fig. 7 is the three dimensional structure diagram of embodiment 3；
Fig. 8 is Fig. 7 longitudinal section；
Fig. 9 is Fig. 7 three-dimensional structure explosive view.
Symbol description in figure：1st, mainboard chip, 2, camera lens mounting seat, 3, camera lens fixes sleeve, 31, through slot, 4, focus
Camera lens, 41, guide pin, 5, adjust circle, 51, guide chute, 52, rack, 6, auto focus control motor, 7, IR-Cut switch.
Embodiment
The utility model content is described in detail with reference to Figure of description and specific embodiment：
Embodiment 1：
As Figure 1-3, the camera lens focused on automatically is realized for a kind of use fixed focus lens that the utility model is provided
Component, including camera mainboard chip 1, be fixedly arranged on mainboard chip 1 camera lens mounting seat 2, be fixedly arranged in camera lens mounting seat 2
Camera lens fixes sleeve 3, it is coaxial be movably set in camera lens fixes sleeve 3 and can the relative axial movement of camera lens fixes sleeve 3 determining
Zoom lens 4, the coaxial tune for being movably set in the periphery of camera lens fixes sleeve 3, which enclose 5 and be fixedly arranged in camera lens mounting seat 2, is used for band
The dynamic auto focus control motor 6 for adjusting circle 5 to be rotated relative to camera lens fixes sleeve 3；It is provided with the periphery wall of the tight shot 4
The guide pin 41 extended radially outwardly, the internal perisporium for adjusting circle 5 is provided with guide pin cooperation guiding so as to the energy when adjusting the rotation of circle 5
Tight shot 4 is set to produce the guide chute 51 of axial displacement, the barrel of the camera lens fixes sleeve 3 with respect to camera lens fixes sleeve 3
Provided with the through slot 31 for being easy to guide pin 41 to extend radially out camera lens fixes sleeve 3；The auto focus control motor 6 passes through
Transmission device is rotated with adjusting circle 5 to be connected so as to drive tune to enclose 5；The mainboard chip 1 has auto focus control function, described
The control line and power line of auto focus control motor 6 are connected by interface with the auto focus control interface on mainboard chip 1
Connect, auto focus control motor 6 can adjust circle 5 to drive tight shot 4 with respect to mainboard chip by driving under the control of mainboard chip 1
1 axial displacement and realize and automatic focus on adjustment.
The guide chute is that, along the cam skewed slot for adjusting 5 internal perisporium axial directions of circle to be threadingly advanced, the through slot is edge
The flat recess that the barrel axial direction of camera lens fixes sleeve 3 is extended in parallel.When adjusting circle to rotate, tight shot is with respect to camera lens fixed cover
Cylinder produces the axial displacement of straight line.
The transmission device includes the gear being fixedly arranged on the output shaft of auto focus control motor 6 and is fixedly arranged on tune circle 5
Be meshed the rack 52 of transmission on periphery wall and with gear.
The camera lens mounting seat can install IR-Cut switch between mainboard chip and tight shot, can also
Do not install.Optical filter can be set on the tight shot 4, can also be not provided with.
Lens assembly is individually in white light environment and under near-infrared environment, and imaging effect is good, and its optic back focal can be set
Count into consistent, can also be designed to inconsistent.Lens assembly is in the range of temperature in use, and in different temperature points, camera lens can be clear
Clear imaging, but in different temperature points, its optic back focal is designed to unanimously, to be designed to inconsistent.
Embodiment 2：
As Figure 4-Figure 6, the difference of embodiment 2 and embodiment 1 is：The guide chute is along tune 5 internal perisporium axles of circle
The flat recess extended in parallel to direction, the through slot is the cam being threadingly advanced along the barrel axial direction of camera lens fixes sleeve 3
Skewed slot.When adjusting circle to rotate, tight shot both produces axial displacement with respect to camera lens fixes sleeve, and rotation is produced again.
Embodiment 3：
As Figure 7-9, the difference of embodiment 3 and embodiment 1 is：The auto focus control motor 6 is fixedly arranged on mirror
In head fixes sleeve 3.
Simply the technical solution of the utility model is explained in detail for above-mentioned embodiment, and the utility model is not
Above-described embodiment is only limited only to, every any improvement or replacement according to the utility model principle all should be new in this practicality
Within the protection domain of type.
Claims (6)
1. a kind of use fixed focus lens realize the lens assembly focused on automatically, it is characterised in that：
Mainboard chip (1) including camera, the camera lens mounting seat (2) being fixedly arranged on mainboard chip (1), it is fixedly arranged on camera lens mounting seat
(2) camera lens fixes sleeve (3) on, coaxial it is movably set in camera lens fixes sleeve (3) and can be with respect to camera lens fixes sleeve (3)
The tight shot (4) of axial movement, coaxially it is movably set in the tune circle (5) of camera lens fixes sleeve (3) periphery and is fixedly arranged on mirror
Head fixes sleeve (3) or camera lens mounting seat (2) on be used for drive adjust circle (5) relative to camera lens fixes sleeve (3) rotate it is automatic
Focus control motor (6)；
The guide pin (41) extended radially outwardly is provided with the periphery wall of the tight shot (4), it is described to adjust the internal perisporium for enclosing (5)
It is provided with to coordinate with guide pin and is oriented to when adjusting circle (5) to rotate tight shot (4) can be made to produce with respect to camera lens fixes sleeve (3)
The guide chute (51) of axial displacement, the barrel of the camera lens fixes sleeve (3), which is provided with, is easy to guide pin (41) radially outward to stretch
Go out the through slot (31) of camera lens fixes sleeve (3)；The auto focus control motor (6) is by transmission device with adjusting circle (5) phase
Connection rotates so as to drive tune to enclose (5)；
The mainboard chip (1) has auto focus control function, the control line and power supply of the auto focus control motor (6)
Line is connected by interface with the auto focus control interface on mainboard chip (1), automatic under mainboard chip (1) control to focus on
Control motor (6) can be automatic by driving tune circle (5) to drive tight shot (4) to be realized with respect to mainboard chip (1) axial displacement
Focus on adjustment.
2. use fixed focus lens according to claim 1 realize the lens assembly focused on automatically, it is characterised in that：Institute
It is that, along the cam skewed slot for adjusting circle (5) internal perisporium axial direction to be threadingly advanced, the through slot is to be fixed along camera lens to state guide chute
The flat recess that sleeve (3) barrel axial direction is extended in parallel.
3. use fixed focus lens according to claim 1 realize the lens assembly focused on automatically, it is characterised in that：Institute
It is that, along the flat recess for adjusting circle (5) internal perisporium axial direction to extend in parallel, the through slot is along camera lens fixed cover to state guide chute
The cam skewed slot that cylinder (3) barrel axial direction is threadingly advanced.
4. use fixed focus lens according to claim 1 realize the lens assembly focused on automatically, it is characterised in that：Institute
Stating transmission device includes the gear that is fixedly arranged on auto focus control motor (6) output shaft and is fixedly arranged on tune circle (5) periphery wall
The rack (52) of the upper and transmission that is meshed with gear.
5. the use fixed focus lens according to any one of claim 1-4 realize the lens assembly focused on automatically, its
It is characterised by：The camera lens mounting seat (2) is being provided with IR-Cut switchings between mainboard chip (1) and tight shot (4)
Device (7).
6. the use fixed focus lens according to any one of claim 1-4 realize the lens assembly focused on automatically, its
It is characterised by：The tight shot (4) is provided with optical filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621377860.8U CN206378668U (en) | 2016-12-15 | 2016-12-15 | The lens assembly focused on automatically is realized using fixed focus lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621377860.8U CN206378668U (en) | 2016-12-15 | 2016-12-15 | The lens assembly focused on automatically is realized using fixed focus lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206378668U true CN206378668U (en) | 2017-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621377860.8U Active CN206378668U (en) | 2016-12-15 | 2016-12-15 | The lens assembly focused on automatically is realized using fixed focus lens |
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| CN (1) | CN206378668U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106647108A (en) * | 2016-12-15 | 2017-05-10 | 福建福特科光电股份有限公司 | Lens assembly capable of realizing automatic focusing by adopting fixed focus lens |
| CN111190318A (en) * | 2020-02-21 | 2020-05-22 | 厦门力鼎光电股份有限公司 | High-precision quick automatic focusing mechanism |
-
2016
- 2016-12-15 CN CN201621377860.8U patent/CN206378668U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106647108A (en) * | 2016-12-15 | 2017-05-10 | 福建福特科光电股份有限公司 | Lens assembly capable of realizing automatic focusing by adopting fixed focus lens |
| CN111190318A (en) * | 2020-02-21 | 2020-05-22 | 厦门力鼎光电股份有限公司 | High-precision quick automatic focusing mechanism |
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