CN107111095A - Camera lens module - Google Patents
Camera lens module Download PDFInfo
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- CN107111095A CN107111095A CN201680004130.XA CN201680004130A CN107111095A CN 107111095 A CN107111095 A CN 107111095A CN 201680004130 A CN201680004130 A CN 201680004130A CN 107111095 A CN107111095 A CN 107111095A
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- China
- Prior art keywords
- operating temperature
- camera lens
- lens module
- offset
- position compensation
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Classifications
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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
- G02B7/028—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with means for compensating for changes in temperature or for controlling the temperature; thermal stabilisation
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Studio Devices (AREA)
- Lens Barrels (AREA)
Abstract
A kind of temperature compensation of camera lens module, this method includes, the first operating temperature of the camera lens module is obtained by temperature sensor, focal position compensation rate is obtained according to first operating temperature, and according to the position of the focal position compensation rate adjustment optical mirror slip group.
Description
Technical field
Present disclosure is related to a kind of camera lens module, and more particularly to a kind of autofocus lenses module with temperature-compensating.
Background technology
Camera lens module is generally made up of optical mirror slip group, imaging sensor, control system and motor.
Plane where imaging sensor and optical mirror slip group is parallel to each other, and the optical axis of optical mirror slip group passes perpendicularly through figure
As the center of sensor, control system controlled motor drive optical mirror slip group along optical axis close to or away from imaging sensor so that
Camera lens module focus.
Imaging sensor and motor can operationally produce heat, so as to change the operating temperature of camera lens module so that light
Learn lens set and produce physical deformation, different optical mirror slip groups is different for the physical deformation produced by the change of temperature.For
The camera lens module of focus, is keeping the optical mirror slip group and the constant situation of position of image sensor relation of camera lens module
Under, the physical deformation of optical mirror slip group can influence the focus state of camera lens module, seriously camera lens module can be caused out of focus.
The content of the invention
In view of this, the purpose of present disclosure is to provide a kind of camera lens module, and the camera lens can be according to operating temperature
The position of the optical mirror slip group of the change adjustment camera lens module, makes the camera lens module be in focus state all the time.
One side according to present disclosure is there is provided a kind of temperature compensation of camera lens module, and methods described includes, and leads to
Excess temperature sensor obtains the first operating temperature of the camera lens module, and obtaining focal position according to first operating temperature mends
The amount of repaying, and adjust according to the focal position compensation rate position of the optical mirror slip group of the camera lens module.
There is provided a kind of camera lens module with temperature-compensating for the another aspect of foundation present disclosure.The camera lens module bag
Include, optical mirror slip group, temperature sensor, the temperature sensor is configurable for obtaining the first work of the camera lens module
Temperature, and control system, the control system are configurable for, and focal position compensation is obtained according to first operating temperature
Amount, and according to the position of the focal position compensation rate adjustment optical mirror slip group.
The third aspect according to present disclosure is used for the non-temporary of camera lens module temperature compensation program instruction there is provided a kind of include
When property computer-readable medium, the computer-readable medium includes, and the of the camera lens module is obtained by temperature sensor
The programmed instruction of one operating temperature, according to the programmed instruction of first operating temperature acquisition focal position compensation rate, and according to
The focal position compensation rate adjusts the programmed instruction of the position of the optical mirror slip group of the camera lens module.
Brief description of the drawings
, below will be to embodiment or existing in order to illustrate more clearly of present disclosure embodiment or technical scheme of the prior art
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are originally to drape over one's shoulders
Some embodiments of dew, for those of ordinary skill in the art, without having to pay creative labor, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
The profile for the camera lens module embodiment one that Fig. 1 provides for present disclosure embodiment；
The profile for the camera lens module embodiment two that Fig. 2 provides for present disclosure embodiment；
The flow chart for the generation focal position compensation rate that Fig. 3 provides for present disclosure embodiment；
The flow chart for the application focal position compensation rate that Fig. 4 provides for present disclosure embodiment；
The profile of the transmission mechanism embodiment one for the camera lens module that Fig. 5 provides for present disclosure embodiment；
The profile of the transmission mechanism embodiment two for the camera lens module that Fig. 6 provides for present disclosure embodiment.
Main element symbol description：
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is all other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Term " first ", " second " in description and claims of this specification and above-mentioned accompanying drawing etc. are to be used to distinguish
Similar object, without for describing specific order or precedence.It should be appreciated that the term so used is in appropriate feelings
It can be exchanged under condition, this is only the differentiation for describing to use the object of same alike result in description in embodiments of the invention
Mode.In addition, term " comprising " and " having " and their any deformation, it is intended that covering is non-exclusive to be included, so as to
Process, method, system, product or equipment comprising a series of units are not necessarily limited to those units, but may include unclear
Other units that ground is listed or for these processes, method, product or equipment inherently.
Below in conjunction with the accompanying drawings, some embodiments of the present invention are elaborated.It is following in the case where not conflicting
Feature in embodiment and embodiment can be mutually combined.
The scheme of present disclosure is described in detail with reference to several specific embodiments.
Fig. 1 illustrates the diagrammatic cross-section for the camera lens module that the embodiment of present disclosure one is provided.Camera lens module 100 includes mirror
Cylinder 107, circuit board 103 and control system (not shown), an optical mirror slip group 110 and a transmission mechanism (non-label).It is described
Lens barrel 107 is connected with the circuit board 103.The set-up of control system is on the circuit board.The optical mirror slip group 110 is set
It is placed in the lens barrel 107.The transmission mechanism is electrically connected with the circuit board 103, and is arranged in the lens barrel 107, is used
Moved in driving the optical mirror slip group 110 in the lens barrel 107.
In the present embodiment, the circuit board 103 is printed circuit board (PCB) (English：printed circuit board).It is described
Circuit board 103 includes the back side 104 away from the lens barrel 107 and the front 105 mutually deviated from the back side 104.It is described
The back side 104 is provided with temperature sensor 102, and the front 105 of the printed circuit board (PCB) 103 is provided with imaging sensor 106.Described image
Sensor 106 and the circuit board 103 by glue 113 (such as：Dispensing) link together.In the present embodiment, described image sensing
The temperature sensor 102 is completely covered in projection of the device 106 along the direction of optical axis 101.Described image sensor 106 can include but
It is not limited to contact-type image sensor (English：Contact image sensor), photosensitive coupling component (English：Contact
Image Sensors), CMOS (English：complementary metal-oxide-
Semiconductor) etc..The temperature sensor 102 can include thermocouple, thermistor, resistance temperature detector (English
Text：Resistance temperature detector), IC (English：Integrated circuit) in temperature sensor
It is at least one.The temperature sensor 102 can detect and/or monitor in real time the temperature of the camera lens module 100.At some
In embodiment, the temperature is the operating temperature of the camera lens module 100.
The optical mirror slip group 110 is arranged at the inwall 109 of the lens barrel 107, and with where described image sensor 106
Plane be parallel to each other, and pass perpendicularly through the straight line of the optical mirror slip group 110 and also pass perpendicularly through described image sensor 106
Center.In some embodiments of present disclosure, pass perpendicularly through the center of optical mirror slip group 110 straight line also pass perpendicularly through it is described
The center of imaging sensor 106.The optical mirror slip group 110 includes at least one optical mirror slip.
The camera lens module 200 that the control system can be detected and/or monitored according to the temperature sensor 102
Operating temperature control the transmission mechanism to drive the optical mirror slip group 110 to be sensed along optical axis close to or away from described image
The direction motion of device 106, makes the camera lens module 100 be in focus state all the time under different operating temperatures.Specifically, institute
Stating transmission mechanism includes the motor 112 of drive rod 111 and one.
In certain embodiments, the transmission mechanism can be the transmission mechanism shown in Fig. 5.Wherein, the drive rod 111
For a screw rod.
In certain embodiments, the transmission mechanism can be the transmission mechanism shown in Fig. 6.Wherein, the drive rod 111
For a guide rail.
In some embodiments of the present disclosure shown in Fig. 1, the temperature sensor 102 is installed in the printed circuit
The front 105 of plate 103, and the operating temperature of the camera lens module 100 is detected and/or monitored in real time.In other embodiments,
The temperature sensor 102 can also be installed in the inside of described image sensor 106, and detect and/or monitor mirror in real time
The operating temperature of head mould group 100.
In other embodiments, the temperature sensor 102 can also be installed in the inwall 109 of the lens barrel 107, and in fact
When detect and/or monitor the operating temperature of camera lens module 100.
In other embodiments, the temperature sensor 102 can also be installed in the outer wall 108 of the lens barrel 107, and in fact
When detect and/or monitor the operating temperature of camera lens module 100.
In other embodiments, the temperature sensor 102 is installed in the inside of the optical mirror slip group 110, and in fact
When detect and/or monitor the operating temperature of camera lens module 100.
In other embodiments, the temperature sensor 102 can also be installed in the outside of the optical mirror slip group 110,
And the operating temperature of camera lens module 100 is detected and/or monitored in real time.
In other embodiments, the camera lens module 100 can include multiple temperature sensors 102, and it sets respectively
It is placed in the different parts of the lens barrel 107 or circuit board 103.
In other embodiments, the camera lens module 100 can include zoom lens.
The control system can include one or more processors, and the processing can include but is not limited to microprocessor
(English：Microcontroller), Reduced Instruction Set Computer (English：reduced instruction set
Computer, referred to as：RISC), application specific integrated circuit (English：application specific integrated
Circuits, referred to as：ASIC), ASIP (English：application-specific instruction-
Set processor, referred to as：ASIP), CPU (English：Central processing unit, referred to as：CPU),
Concurrent physical processor English (English：Physics processing unit, referred to as：PPU), digital signal processor (English：
Digital signal processor, abbreviation DSP), field programmable gate array (English：field programmable
Gate array, referred to as：FPGA) etc..
The camera lens module can include one or more Memory Storage Units, and the Memory Storage Unit can be wrapped
Non-transitory computer-readable medium is included, it can be stored for performing other described one or more steps everywhere herein
Code, logic or instruction.The processor of the control system, it can be according to non-transitory computer as described herein
Code, logic or the instruction of computer-readable recording medium and either individually or collectively perform one or more steps.
Fig. 2 illustrates the diagrammatic cross-section for the camera lens module that another embodiment of present disclosure is provided.Camera lens module 200 includes
Lens barrel 207, circuit board 203 and control system (not shown), the first optical mirror slip group 210, the second optical mirror slip group 213, first
Transmission mechanism (non-label) and the second transmission mechanism (non-label).The lens barrel 207 is connected with the circuit board 203.The control
System processed is arranged on the circuit board 203.The first optical mirror slip group 210 is set with the second optical mirror slip group 213
In in the lens barrel 207.First transmission mechanism is electrically connected with second transmission mechanism with the circuit board 203, and is set
It is placed in the camera lens 207, for driving the first optical mirror slip group 210 and the second optical mirror slip group 213 to exist respectively
Moved in the lens barrel 207.
In the present embodiment, the circuit board 203 is printed circuit board (PCB) (English：Printed circuit board, referred to as：
PCB).The circuit board includes the back side 104 away from the camera lens 207 and the front mutually deviated from the back side 204
205.The back side 204 is provided with temperature sensor 202, and the front 205 of the printed circuit board (PCB) 203 is provided with imaging sensor 206.
Described image sensor 206 by glue 216 (such as：Dispensing) linked together with the circuit board 203.It is described in the present embodiment
The temperature sensor 202 is completely covered in projection of the imaging sensor 206 along the direction of optical axis 201.Described image sensor 206 can
To include but is not limited to contact-type image sensor (English：Contact image sensor), photosensitive coupling component (English：
Contact Image Sensors), CMOS (English：complementary metal-oxide-
Semiconductor) etc..The temperature sensor 202 can include thermocouple, thermistor, resistance temperature detector (English
Text：Resistance temperature detector), IC (English：Integrated circuit) in temperature sensor
It is at least one.The temperature sensor 202 can detect and/or monitor in real time the temperature of the camera lens module 200.At some
In embodiment, the temperature is the operating temperature of the camera lens module 200.
The first optical mirror slip group 210 is arranged at the inwall 209 of the lens barrel 207, and with described image sensor 206
The plane at place is parallel to each other, and pass perpendicularly through the straight line of the first optical mirror slip group 210 also pass perpendicularly through described image biography
The center of sensor 206.In some embodiments of present disclosure, the straight line at the center of the first optical mirror slip group 210 is passed perpendicularly through
Also the center of described image sensor 206 is passed perpendicularly through.The first optical mirror slip group 210 includes at least one optical mirror slip.
The first optical mirror slip group 213 is arranged at the inwall 209 of the lens barrel 207, and with described image sensor 206
The plane at place is parallel to each other, and pass perpendicularly through the straight line of the second optical mirror slip group 213 also pass perpendicularly through described image biography
The center of sensor 206.In some embodiments of present disclosure, the straight line at the center of the second optical mirror slip group 213 is passed perpendicularly through
Also the center of described image sensor 206 is passed perpendicularly through.The second optical mirror slip group 213 includes at least one optical mirror slip.
In certain embodiments, pass perpendicularly through the center of the first optical mirror slip group 210 and while pass perpendicularly through described
The straight line of second optical mirror slip group 213 also passes perpendicularly through the center of described image sensor 206.
The camera lens module 200 that the control system can be detected and/or monitored according to the temperature sensor 202
Operating temperature control first transmission mechanism to drive the first optical mirror slip group 210 along optical axis close to or away from described
The direction motion of imaging sensor 206.The control system can also be detected and/or monitored according to the temperature sensor 202
The operating temperature of the camera lens module 200 arrived controls second transmission mechanism to drive the edge of the second optical mirror slip group 213
Move in the direction of the close or remote described image sensor 206 of optical axis.Make the camera lens module 200 in different operating temperatures
Under all the time be in focus state.
Specifically, first transmission mechanism includes the first motor 212 and the first drive rod 211.Second driver
Structure includes the second motor 215 and the second drive rod 214.
In certain embodiments, first transmission mechanism can be transmission mechanism as shown in Figure 5, second transmission
Mechanism can be the transmission mechanism shown in Fig. 6.Wherein, first drive rod 211 is a screw rod, second drive rod 214
For a guide rail.
In certain embodiments, first transmission mechanism can be the transmission mechanism shown in Fig. 6, second driver
Structure can be the transmission mechanism shown in Fig. 5.Wherein, first drive rod 211 is a guide rail, and second drive rod 214 is
One screw rod.
In certain embodiments, first transmission mechanism and second transmission mechanism can be the biography shown in Fig. 5
Motivation structure.Wherein, first drive rod 211 is a screw rod, and second drive rod 214 is also a screw rod.
In certain embodiments, first transmission mechanism and second transmission mechanism can be the biography shown in Fig. 6
Motivation structure.Wherein, first drive rod 211 is a guide rail, and second drive rod 214 is also a guide rail.
In other embodiments, the temperature sensor 202 is installed in the front 205 of the printed circuit board (PCB) 203, and
Detect and/or monitor in real time the operating temperature of camera lens module 200.
In other embodiments, the temperature sensor 202 is installed in the inside of described image sensor 206, and in fact
When detect and/or monitor the operating temperature of camera lens module 200.
In other embodiments, the temperature sensor 202 is installed in the inwall 209 of the lens barrel 207, and in real time
Detection and/or the operating temperature of monitoring camera lens module 200.
In other embodiments, the temperature sensor 202 is installed in the outer wall 208 of the lens barrel 207, and in real time
Detection and/or the operating temperature of monitoring camera lens module 200.
In other embodiments, the temperature sensor 202 is installed in the inside of the first optical mirror slip group 210,
And the operating temperature of camera lens module 200 is detected and/or monitored in real time.
In other embodiments, the temperature sensor 202 is installed in the outside of the first optical mirror slip group 210,
And the operating temperature of camera lens module 200 is detected and/or monitored in real time.
In other embodiments, the temperature sensor 202 is installed in the inside of the second optical mirror slip group 213,
And the operating temperature of camera lens module 200 is detected and/or monitored in real time.
In other embodiments, the temperature sensor 202 is installed in the outside of the second optical mirror slip group 213,
And the operating temperature of camera lens module 200 is detected and/or monitored in real time.
In other embodiments, the camera lens module 200 includes multiple temperature sensors 202.
In other embodiments, the camera lens module 200 includes zoom lens.
The control system can include one or more processors, and the processing can include but is not limited to microprocessor
(English：Microcontroller), Reduced Instruction Set Computer (English：reduced instruction set
Computer, referred to as：RISC), application specific integrated circuit (English：application specific integrated
Circuits, referred to as：ASIC), ASIP (English：application-specific instruction-
Set processor, referred to as：ASIP), CPU (English：Central processing unit, referred to as：CPU),
Concurrent physical processor English (English：Physics processing unit, referred to as：PPU), digital signal processor (English：
Digital signal processor, abbreviation DSP), field programmable gate array (English：field programmable
Gate array, referred to as：FPGA) etc..
The camera lens module can include one or more Memory Storage Units, and the Memory Storage Unit can be wrapped
Non-transitory computer-readable medium is included, it can be stored for performing other described one or more steps everywhere herein
Code, logic or instruction.The processor of the control system, it can be according to non-transitory computer as described herein
Code, logic or the instruction of computer-readable recording medium and either individually or collectively perform one or more steps.
The flow chart for the generation focal position compensation rate that Fig. 3 provides for present disclosure embodiment.As shown in figure 3, the flow
Executive agent is the control system of the camera lens module.The control system can be according to the mirror for detecting and/or monitoring
The operating temperature of head mould group, obtains out the focal position compensation rate.
Step 301, the environment temperature of the camera lens module is set.
Wherein, the environment temperature of the camera lens module can be by TenvRepresent.
Step 302, the focal distance of the camera lens module is set.
Wherein, the focal distance of the camera lens module can be by DFoucusRepresent.
Step 303, start after camera lens module, focus, obtain the reference focal position of the camera lens module and refer to work
Make temperature.
Wherein, the reference focal position can be by Pos0Represent, the reference work temperature can be by T0Represent.One
In a little embodiments, the reference focal position and the reference work temperature can be that the camera lens module starts at any time
And the focal position after focus and operating position.
Step 304, after the operating temperature of the camera lens module changes, skew focal position and skew work are obtained
Temperature.Wherein, the skew focal position can be by PosnRepresent, the skew operating temperature can be by TnRepresent.In some realities
Apply in example, the skew focal position and the skew operating temperature have one-to-one corresponding.
In certain embodiments, the camera lens module can obtain multigroup skew focal position and skew operating temperature.
For example, Pos1、T1、Pos2、T2、Pos3、T3、Pos4、T4、Pos5、T5、Pos6、T6、Pos7、T7、Pos8、T8、Pos9、T9、Pos10、
T10Deng, wherein, Pos1Correspondence T1、Pos2Correspondence T2、Pos3Correspondence T3、Pos4Correspondence T4、Pos5Correspondence T5、Pos6Correspondence T6、Pos7
Correspondence T7、Pos8Correspondence T8、Pos9Correspondence T9、Pos10Correspondence T10。
Step 305, the operating temperature of the camera lens module is adjusted.
Step 306, judge whether the operating temperature of the camera lens module is completely covered the operating temperature of the camera lens module
Scope.
In certain embodiments, if the operating temperature of the camera lens module does not cover the operating temperature of the camera lens module
Scope, then the camera lens module, which will continue to obtain, offsets focal position and skew operating temperature.For example：Through after step 305, currently
The operating temperature of the camera lens module is 20 DEG C, and the operating temperature range of the camera lens module is -10 DEG C to 40 DEG C, then described
Camera lens module will return and perform step 304, and then repeat step 305, improve or reduce the work temperature of the camera lens module
Degree, until covering the operating temperature range of the camera lens module.
In certain embodiments, if the operating temperature of the camera lens module has covered the work temperature of the camera lens module
Scope is spent, then the camera lens module will perform step 307.For example：The operating temperature range of the camera lens module is -10 DEG C to 40
DEG C, and the skew operating temperature of the camera lens module current record has covered the operating temperature range.The then camera lens
Module will perform step 307.
Step 307, the focal distance of the camera lens module is adjusted.
Step 308, judge whether most camera lens modules are completely covered the focusing range of the camera lens module.
In certain embodiments, if the focal distance of the camera lens module does not cover the focusing model of the camera lens module
Enclose, then the camera lens module will reset the focal distance.For example：Through after step 307, pair of presently described camera lens module
Defocus distance is 50mm, and the focusing range of the camera lens module is 28mm to 105mm, then the camera lens module will return and perform step
Rapid 302, the focal distance of the camera lens module is improved or reduces, until covering the focusing range of the camera lens module.
In certain embodiments, if the focal distance of the camera lens module has covered the focusing model of the camera lens module
Enclose, then the camera lens module will perform step 309.For example：The focusing range of the camera lens module is 28mm to 105mm, and institute
The focal distance for stating camera lens module current record has covered the focusing range.Then the camera lens module will perform step
309。
Step 309, the focal position compensation rate of the camera lens module is generated.
In certain embodiments, the focal position compensation rate corresponds to the focal distance and work temperature of the camera lens module
The offset of degree.Wherein, the offset of the operating temperature is the skew operating temperature (Tn) and the reference work temperature
(T0) difference (such as T1-T0,T2-T0,T3-T0,T4-T0,T5-T0,T6-T0,T7-T0,T8-T0,T9-T0,T10-T0), the work temperature
The offset of degree can be by ToffsetRepresent.Wherein, the focal position compensation rate is the skew focal position (Posn) and institute
State with reference to focal position (Pos0) difference (such as Pos1-Pos0,Pos2-Pos0,Pos3-Pos0,Pos4-Pos0,Pos5-Pos0,
Pos6-Pos0,Pos7-Pos0,Pos8-Pos0,Pos9-Pos0,Pos10-Pos0), the compensation rate of the focal position can be by
PoscompensationRepresent.
In certain embodiments, the camera lens module can generate an index on the focal position compensation rate
Table.For example：In the concordance list, the offset (T of the operating temperatureoffset), the focal distance and focus position
Put compensation rate (Poscompensation) correspond.It can be searched by the offset and the focal distance of the operating temperature
To the corresponding focal position compensation rate.
In certain embodiments, the camera lens module can generate a position compensation function on the focal position
F (T, D), T can represent the offset of the operating temperature of the camera lens module, and D can represent the focusing of the camera lens module
From.
It should be noted that the flow described by method 300 is only one embodiment of present disclosure, being not construed as can be with
Cover the protection domain of present disclosure.For the person of ordinary skill of the art, it can be made on the basis of present disclosure
Modification changes, but the modification or change are still within the protection domain of present disclosure.
The flow chart for the application focal position compensation rate that Fig. 4 provides for present disclosure embodiment.
Step 401, the operating temperature of camera lens module is obtained by temperature sensor.In certain embodiments, the camera lens
The work of module is operating temperature of the camera lens module in focus state.
Step 402, detect whether the operating temperature of the camera lens module shifts.If the work of the camera lens module
Temperature does not shift, then the camera lens module will continue through the work temperature of the temperature sensor acquisition camera lens module
Degree.If the operating temperature of the camera lens module is offset, the camera lens module will continue the behavior of step 403.
Step 403, the offset according to operating temperature and focal distance are obtained focal position compensation by the camera lens module
Amount.
In certain embodiments, after the camera lens module focus, current focal distance can be recorded, and use
Focal position compensation rate is obtained after.
In certain embodiments, the focal distance when camera lens module is in focus state every time can be recorded
Come, focal position compensation rate is obtained for after.
In certain embodiments, the motor of the camera lens module is a stepper motor, the focal distance of the camera lens module
It can be obtained by calculating the operating step number of the stepper motor.
In certain embodiments, the camera lens module is by the offset according to operating temperature, by concordance list, finds pair
The focal position compensation rate answered.
In certain embodiments, the offset according to operating temperature is passed through position compensation function, meter by the camera lens module
Calculate the focal position compensation rate.
Step 404, the camera lens module will adjust the position of the optical mirror slip group according to the focal position compensation rate,
So that the camera lens module is in focus state all the time.
It should be noted that the flow described by method 300 is only one embodiment of present disclosure, being not construed as can be with
Cover the protection domain of present disclosure.For the person of ordinary skill of the art, it can be made on the basis of present disclosure
Modification changes, but the modification or change are still within the protection domain of present disclosure.
The profile of the transmission mechanism embodiment one for the camera lens module that Fig. 5 provides for present disclosure embodiment.
Camera lens module 500 includes control system, a transmission mechanism (non-label), lens barrel 511, circuit board 509 and optical frames
Piece group 503.
The transmission mechanism includes a motor 501, a screw rod 502.One end of the screw rod 502 connects with the motor 501
Connect, the other end of the screw rod 502 is connected with optical mirror slip group 503.Specifically, the non-optical zones of the optical mirror slip group 503
Including a screw 505, the screw rod 502 can be screw-coupled to the screw 505 of the non-optical zones of optical mirror slip group 503.Institute
The inwall 506 for stating lens barrel 511 is provided with fixing groove 504.The other end of the optical mirror slip group 503 is located at the fixing groove 504
In.
Described image sensor 510 and the circuit board 509 by glue 507 (for example：Dispensing) link together.When described
After the operating temperature of camera lens module 500 changes, the glue 507 and/or the optical mirror slip group 503 can be deformed upon, and be entered
And make the camera lens module 500 out of focus.Not enough for more than, present disclosure proposes a kind of camera lens module with temperature-compensating, can
With the change according to operating temperature, the position of optical mirror slip group 503 is adjusted, camera lens is in focus state all the time.
In certain embodiments, the control system of the camera lens module 500 can be examined according to the temperature sensor
Survey/or the temperature that monitors, drive the motor 501 to rotate, and then drive the screw rod 502 to rotate, the screw rod 502 and then
The optical mirror slip group 503 is driven to move.For example：The screw rod 502 can drive the optical mirror slip group 503 close along optical axis
Or away from described image sensor 508.
In certain embodiments, the motor 501, which drives the screw rod 502 to rotate clockwise, can drive the optical frames
Piece group 503 is away from described image sensor.On the contrary, the motor 501 drives the screw rod 502 to rotate counterclockwise and can drive
The optical mirror slip group 503 is close to described image sensor.
In other embodiments, the motor 501, which drives the screw rod 502 to rotate clockwise, can drive the optical frames
Piece group 503 is close to described image sensor.On the contrary, the motor 501 drives the screw rod 502 to rotate counterclockwise and can drive
The optical mirror slip group 503 is away from described image sensor.
, should not be by it is worth noting that, the above-mentioned description for the transmission mechanism is only to facilitate understand present disclosure
It is considered as the unique implementation of present disclosure.For example：The motor 501 can drive the spiral shell by one and/or multiple gears
Bar 502 is rotated.
The profile of the transmission mechanism embodiment two for the camera lens module that Fig. 6 provides for present disclosure embodiment.
Camera lens module 600 includes control system, a transmission mechanism (non-label), lens barrel 611, circuit board 609 and optical frames
Piece group 603.
The transmission mechanism includes a motor 601, a guide rail 602.One end of the guide rail 602 connects with the motor 601
Connect, the other end of the guide rail 602 is connected with optical mirror slip group 603.Specifically, the non-optical zones of the optical mirror slip group 603
Including a neck 605, the guide rail 602 can be engaged on one with the neck 605 of the non-optical zones of optical mirror slip group 603
Rise.The inwall 606 of the lens barrel 611 is provided with fixing groove 604.The other end of the optical mirror slip group 603 is located at the fixation
In groove 604.
Described image sensor 610 and the circuit board 609 by glue 607 (for example：Dispensing) link together.When described
After the operating temperature of camera lens module 600 changes, the glue 607 and/or the optical mirror slip group 603 can be deformed upon, and be entered
And make the camera lens module 600 out of focus.Not enough for more than, present disclosure proposes a kind of camera lens module with temperature-compensating, can
With the change according to operating temperature, the position of optical mirror slip group 603 is adjusted, camera lens is in focus state all the time.
In certain embodiments, the control system of the camera lens module 600 can be examined according to the temperature sensor
Survey/or the temperature that monitors, drive the motor 601 to rotate, and then drive the guide rail 602 to move, the guide rail 602 and then
The optical mirror slip group 603 is driven to move.For example：The guide rail 602 can drive the optical mirror slip group 603 close along optical axis
Or away from described image sensor 608.The motor 601 is linked together by gear 612 with the guide rail 602, described
The sensing of the rotor (not shown) of motor 601 is vertical with the plane where the guide rail.
, should not be by it is worth noting that, the above-mentioned description for the transmission mechanism is only to facilitate understand present disclosure
It is considered as the unique implementation of present disclosure.For example：The motor 601 can drive the guide rail 602 to move by multiple gears.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
This patent document disclosure includes material protected by copyright.The copyright is all for copyright holder.Copyright
Owner does not oppose that anyone replicates the patent document in the presence of the proce's-verbal of Patent＆Trademark Office and archives or should
Patent is disclosed.
Finally it should be noted that：Various embodiments above is only to the technical scheme for illustrating present disclosure, rather than its limitations；To the greatest extent
Present disclosure is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from each embodiment technology of present disclosure
The scope of scheme.
Claims (24)
1. a kind of temperature compensation of camera lens module, methods described includes：
The first operating temperature of the camera lens module is obtained by temperature sensor；
Focal position compensation rate is obtained according to first operating temperature；And
The position of the optical mirror slip group of the camera lens module is adjusted according to the focal position compensation rate.
2. according to the method described in claim 1, described include according to first operating temperature acquisition focal position compensation rate：
The second operating temperature of the camera lens module is obtained by the temperature sensor；
The offset of operating temperature is obtained according to first operating temperature and second operating temperature；And
Focal position compensation rate is obtained according to the offset of the operating temperature.
3. method according to claim 2, it is characterised in that the offset of the operating temperature is the described first work temperature
Degree and the difference of second operating temperature.
4. method according to claim 2, it is characterised in that first operating temperature is the camera lens module in focus
Operating temperature during state.
5. method according to claim 2, described to obtain focal position compensation rate according to the offset of the operating temperature
Including：
Obtain the focal distance of the camera lens module；
Focal position compensation rate is obtained according to the offset of the operating temperature and the focal distance.
6. method according to claim 5, described to be obtained according to the offset of the operating temperature and the focal distance
Focal position compensation rate also includes：
According to the offset of the operating temperature and the focal distance, by indexing focal position compensation rate described in table search.
7. method according to claim 5, described to be obtained according to the offset of the operating temperature and the focal distance
Focal position compensation rate also includes：
According to the offset of the operating temperature and the focal distance, the focal position is calculated by position compensation function and mended
The amount of repaying.
8. method according to claim 7, it is characterised in that the position compensation function is on the operating temperature
The binary function of offset and the focal distance.
9. a kind of camera lens module with temperature-compensating, the camera lens module includes：
Optical mirror slip group；
Temperature sensor, it is configurable for the first operating temperature for obtaining the camera lens module；And
Control system, it is configurable for：
Focal position compensation rate is obtained according to first operating temperature；And
The position of the optical mirror slip group is adjusted according to the focal position compensation rate.
10. camera lens module according to claim 9, described to obtain focal position compensation rate according to first operating temperature
Including：
Obtain the second operating temperature of the camera lens module generated by the temperature sensor；
The offset of operating temperature is obtained according to first operating temperature and second operating temperature；And
Focal position compensation rate is obtained according to the offset of the operating temperature.
11. camera lens module according to claim 10, it is characterised in that the offset of the operating temperature is described first
The difference of operating temperature and second operating temperature.
12. camera lens module according to claim 10, it is characterised in that first operating temperature is the camera lens module
Operating temperature in focus state.
13. camera lens module according to claim 10, described to obtain focal position according to the offset of the operating temperature
Compensation rate includes：
Obtain the focal distance of the camera lens module；
Focal position compensation rate is obtained according to the offset of the operating temperature and the focal distance.
14. camera lens module according to claim 13, the offset according to the operating temperature and the focusing
Also include from focal position compensation rate is obtained：
According to the offset of the operating temperature and the focal distance, by indexing focal position compensation rate described in table search.
15. camera lens module according to claim 13, the offset according to the operating temperature and the focusing
Also include from focal position compensation rate is obtained：
According to the offset of the operating temperature and the focal distance, the focal position is calculated by position compensation function and mended
The amount of repaying.
16. camera lens module according to claim 15, it is characterised in that the position compensation function is on the work
The binary function of the offset of temperature and the focal distance.
17. a kind of include is used for the non-transitory computer-readable medium for the programmed instruction that camera lens module temperature is compensated, the meter
Calculation machine computer-readable recording medium includes：
The programmed instruction of the first operating temperature of the camera lens module is obtained by temperature sensor；
The programmed instruction of focal position compensation rate is obtained according to first operating temperature；And
The programmed instruction of the position of the optical mirror slip group of the camera lens module is adjusted according to the focal position compensation rate.
18. non-transitory computer-readable medium according to claim 17, described to be obtained according to first operating temperature
Taking the programmed instruction of focal position compensation rate includes：
The programmed instruction of the second operating temperature of the camera lens module is obtained by the temperature sensor；
The programmed instruction of the offset of operating temperature is obtained according to first operating temperature and second operating temperature；And
The programmed instruction of focal position compensation rate is obtained according to the offset of the operating temperature.
19. non-transitory computer-readable medium according to claim 18, it is characterised in that the operating temperature it is inclined
Shifting amount is the difference of first operating temperature and second operating temperature.
20. non-transitory computer-readable medium according to claim 18, it is characterised in that first operating temperature
For operating temperature of the camera lens module in focus state.
21. non-transitory computer-readable medium according to claim 18, the skew according to the operating temperature
The programmed instruction that amount obtains focal position compensation rate includes：
Obtain the programmed instruction of the focal distance of the camera lens module；
The programmed instruction of focal position compensation rate is obtained according to the offset of the operating temperature and the focal distance.
22. non-transitory computer-readable medium according to claim 21, the skew according to the operating temperature
The programmed instruction that amount and the focal distance obtain focal position compensation rate also includes：
According to the offset of the operating temperature and the focal distance, by indexing focal position compensation rate described in table search
Programmed instruction.
23. non-transitory computer-readable medium according to claim 21, the skew according to the operating temperature
The programmed instruction that amount and the focal distance obtain focal position compensation rate also includes：
According to the offset of the operating temperature and the focal distance, the focal position is calculated by position compensation function and mended
The programmed instruction for the amount of repaying.
24. non-transitory computer-readable medium according to claim 23, it is characterised in that the position compensation function
For the binary function of the offset on the operating temperature and the focal distance.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2016/098096 WO2018040098A1 (en) | 2016-09-05 | 2016-09-05 | Lens module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107111095A true CN107111095A (en) | 2017-08-29 |
Family
ID=59676530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680004130.XA Pending CN107111095A (en) | 2016-09-05 | 2016-09-05 | Camera lens module |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107111095A (en) |
| WO (1) | WO2018040098A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107942601A (en) * | 2017-12-25 | 2018-04-20 | 天津天地伟业电子工业制造有限公司 | A kind of stepper motor lens focus method based on temperature-compensating |
| CN111294511A (en) * | 2020-02-06 | 2020-06-16 | 北京小米移动软件有限公司 | Focusing method and device of camera module and storage medium |
| CN111722355A (en) * | 2019-03-19 | 2020-09-29 | 杭州海康微影传感科技有限公司 | Method and device for focusing thermal imaging lens based on temperature compensation |
| CN114827444A (en) * | 2021-01-29 | 2022-07-29 | 北京小米移动软件有限公司 | Focusing method and device, shooting equipment, electronic equipment and storage medium |
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| KR20160092341A (en) * | 2015-01-27 | 2016-08-04 | 삼성전자주식회사 | AUTO FOCUSING module, photographing apparatus having the same and Manufacturing method of AUTO FOCUSING module |
| CN206020782U (en) * | 2016-09-05 | 2017-03-15 | 深圳市大疆创新科技有限公司 | Camera lens module |
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| CN102262335A (en) * | 2010-05-28 | 2011-11-30 | 株式会社日立制作所 | Imaging device |
| US20140233109A1 (en) * | 2011-09-30 | 2014-08-21 | Barco N.V. | Structure and method for compensating temperature dependent magnification and focus change |
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| CN107942601A (en) * | 2017-12-25 | 2018-04-20 | 天津天地伟业电子工业制造有限公司 | A kind of stepper motor lens focus method based on temperature-compensating |
| CN111722355A (en) * | 2019-03-19 | 2020-09-29 | 杭州海康微影传感科技有限公司 | Method and device for focusing thermal imaging lens based on temperature compensation |
| CN111294511A (en) * | 2020-02-06 | 2020-06-16 | 北京小米移动软件有限公司 | Focusing method and device of camera module and storage medium |
| CN114827444A (en) * | 2021-01-29 | 2022-07-29 | 北京小米移动软件有限公司 | Focusing method and device, shooting equipment, electronic equipment and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018040098A1 (en) | 2018-03-08 |
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