CN102914931A - Optical image stabilizer of camera - Google Patents
Optical image stabilizer of camera Download PDFInfo
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- CN102914931A CN102914931A CN2011102212608A CN201110221260A CN102914931A CN 102914931 A CN102914931 A CN 102914931A CN 2011102212608 A CN2011102212608 A CN 2011102212608A CN 201110221260 A CN201110221260 A CN 201110221260A CN 102914931 A CN102914931 A CN 102914931A
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Abstract
The invention relates to an optical image stabilizer of a camera. The optical image stabilizer comprises a base, a sliding support group, a transverse reference magnet group, a transverse drive coil, two longitudinal reference magnet groups and two longitudinal drive coils. The base is provided with two transverse guide rails. The sliding support group includes a transverse sliding support and a longitudinal sliding support. The transverse sliding support can be combined to the base in such manner of moving along the two transverse guide rails and is provided with two longitudinal guide rails. The longitudinal sliding support is combined to the transverse sliding support in such manner of moving along the two longitudinal guide rails. The transverse reference magnet group is arranged on the base. The transverse drive coil is disposed on the sliding support group. After current is guided in, the transverse drive coil can drive the longitudinal sliding support to transversely move with respect to the base. The two longitudinal reference magnet groups are respectively disposed on the base. The two longitudinal drive coils are respectively arranged on the sliding support group. After current is guided in, the longitudinal drive coils can longitudinally move with respect to the base.
Description
Technical field
The present invention is relevant with the image acquisition device of camera, in more detail refers to a kind of optical image stabilizator of camera.
Background technology
See also Fig. 1 and Fig. 2, a kind of optical image stabilizator 3 of known camera in order to being arranged in the camera imaging side with respect to camera lens, and arranges for the image sensor 4 (CCD or CMOS) in order to this camera lens imaging of sensing.
Above-mentioned optical image stabilizator 3 includes:
Lateral fiducial group of magnets 60a and vertical benchmark group of magnets 60b are located at respectively on the pedestal 50.
Laterally travelling carriage 71 and longitudinal sliding motion frame 72, this horizontal travelling carriage 71 are combined on these cross slide waies 51 and can move back and forth along these cross slide waies 51, and have three longitudinal rails 711; These longitudinal sliding motion frame 72 usefulness are for arranging above-mentioned image sensor 4, and are combined on these longitudinal rails 711 and can move back and forth along these longitudinal rails 711.
By this, when user's use has the camera filmed image of above-mentioned optical image stabilizator 3, camera detects that to shake caused camera lens crooked because of the moment of user's hand, the correction circuit of camera can import suitable electric current respectively to this horizontal drive coil 80a and this vertical drive coil 80b, make this two coil 80a, 80b produces corresponding magnetic field, and organize lateral fiducial group of magnets 60a with this, and the vertical benchmark group of magnets of this group 60b generation is inhaled or the effect of repelling each other mutually, carry these longitudinal sliding motion frame 72 generations of this image sensor 4 and the movement of crooked opposite direction direction with driving, and keeping the sharpness of captured image.
In the above-mentioned optical image stabilizator, this vertical drive coil 80b is positioned at the side on this longitudinal sliding motion frame 72.See also Fig. 3 and cooperate following calculating formula to learn:
M1＝F×La；
M2＝F×Lb；
M3＝F×Lc；
Wherein, M1～M3 is moment; F is acting force; La～Lc is the arm of force;
Yet, M1+M2＞M3; Therefore, when vertical drive coil 80b occurs to inhale mutually or repel each other and do the time spent with vertical benchmark group of magnets 60b because producing magnetic field, the moment that produces can't offset fully, so that this longitudinal sliding motion frame 72 produces the leverage take vertical slide rail 711 in centre position as fulcrum, to cause this longitudinal sliding motion frame 72 inclination angle to a certain degree to produce, to cause this optical image stabilizator 3 when vibration compensation, to have easily the situation of pause to occur, and then have influence on quality and the usefulness of this optical image stabilizator 3.
Summary of the invention
The technical problem to be solved in the present invention is, the defective that has easily when the vibration compensation situation of pause to occur for the optical image stabilizator of camera in the prior art, a kind of optical image stabilizator of camera is provided, improves above-mentioned known person's disappearance, and have than the moving sensitivity of fine piece of writing.
The present invention is that the technical scheme that its technical matters of solution adopts is, a kind of optical image stabilizator of camera is provided, in order to being arranged in the camera position with respect to the imaging side of camera lens, and for the image sensor setting in order to this camera lens imaging of sensing; This optical image stabilizator includes pedestal, one group of travelling carriage, lateral fiducial group of magnets, horizontal drive coil, two vertical benchmark group of magnets and two vertical drive coils, wherein, this pedestal is incorporated in the inside of this camera, and has two cross slide waies; This group travelling carriage includes horizontal travelling carriage and longitudinal sliding motion frame; This horizontal travelling carriage to be can being incorporated on this pedestal along the mode that these two cross slide waies move back and forth, and has two longitudinal rails; This longitudinal sliding motion frame is used for this image sensor is set, and being incorporated into along the mode that these two longitudinal rails move back and forth on this horizontal travelling carriage; This lateral fiducial group of magnets is located on this pedestal; This horizontal drive coil is located on the position that corresponds to this group lateral fiducial group of magnets on this group travelling carriage, after importing electric current, can drive this longitudinal sliding motion frame generation with respect to the transverse shifting of this pedestal; These two vertical benchmark group of magnets are located at respectively the position that corresponds to these relative both sides of image sensor on this pedestal; These two vertical drive coils, be located at respectively correspond on this group travelling carriage these two vertical benchmark group of magnets the position, after importing electric current, can drive this longitudinal sliding motion frame and produce vertically moving with respect to this pedestal.
By this, utilize the design of above-mentioned two vertically benchmark group of magnets and two vertical drive coils to reach the disappearance of improving above-mentioned known person, and can have than the moving sensitivity of fine piece of writing.
Description of drawings
Fig. 1 is the exploded view of known optical image stabilizator.
Fig. 2 is that known optical image stabilizator is in the exploded view at another visual angle.
Fig. 3 is that known longitudinal sliding motion frame is made the acting force of time spent and the synoptic diagram of each arm of force.
Fig. 4 is the stereographic map of optical image stabilizator of the present invention.
Fig. 5 is the exploded view of optical image stabilizator of the present invention.
Fig. 6 is that optical image stabilizator of the present invention is in the exploded view at another visual angle.
Fig. 7 is that longitudinal sliding motion frame of the present invention is made the acting force of time spent and the synoptic diagram of each arm of force.
Embodiment
For being illustrated more clearly in the present invention, hereby lifting preferred embodiment and cooperate accompanying drawing to be described in detail as follows.
See also Fig. 4 to Fig. 6, the optical image stabilizator 1 of preferred embodiment of the present invention in order to being arranged in the camera position with respect to the imaging side of camera lens, and arranges for the image sensor 2 in order to this camera lens imaging of sensing; This optical image sensor 1 includes:
One group of travelling carriage 20 includes horizontal travelling carriage 21 and longitudinal sliding motion frame 22.Wherein:
This horizontal travelling carriage 21 has one group of perforation 211 and limiting groove 212, this group perforation 211 is sheathed on wherein on this cross slide way 11, and this limiting groove 212 is cross-placed on another this cross slide way 11, and this horizontal travelling carriage 21 can be moved back and forth along these two cross slide waies 11.This horizontal travelling carriage 21 has more two longitudinal rails 213, and these two longitudinal rails 213 are respectively the round metal body of rod with smooth surface in the present embodiment, and is embedded at respectively on the support body of this horizontal travelling carriage 21 near the two side ends place.In addition, this horizontal travelling carriage 21 has opening 214, uses the imaging beam for this camera lens to pass through.
These longitudinal sliding motion frame 22 usefulness are for the position of this image sensor 2 in the opening 214 that corresponds to this horizontal travelling carriage 21 is set.In addition, this longitudinal sliding motion frame 22 includes main body 221 and the coil holder 222 that extends to form of this main body 221 certainly, this main body has one group of perforation 223 and limiting groove 224, this group perforation 223 is sheathed on wherein on this longitudinal rail 213, and this limiting groove 224 is cross-placed on another this longitudinal rail 213, and this longitudinal sliding motion frame 22 can be moved back and forth along these two longitudinal rails 213.
Lateral fiducial group of magnets 30a and two vertical benchmark group of magnets 30b are located at respectively on this pedestal.More accurately, this lateral fiducial group of magnets 30a in the present embodiment, is located on the position between these two cross slide waies 11 on this pedestal 10; These two vertical benchmark group of magnets 30b, in the present embodiment, then be to be located at respectively to correspond to these image sensor 2 relative both sides on this pedestal 10 and correspond to position between these two cross slide waies 11, and wherein this vertical benchmark group of magnets 30b between this coil holder 222 and this main body 221.
Two vertical drive coil 40b, be located at respectively correspond between these two cross slide waies 11 on this group travelling carriage 20 and correspond to this vertical benchmark magnet 30b the position.More accurately, in the present embodiment, these two vertical drive coil 40b are located at respectively and correspond between these two cross slide waies 11 on this longitudinal sliding motion frame 22 and correspond on the position of these two vertical benchmark group of magnets 30b, and wherein this vertical drive coil 40b between corresponding vertical benchmark group of magnets 30b and this main body 221.These two vertical drive coil 40b are after importing electric current, these two longitudinal sliding motion frame 40b will produce corresponding magnetic field, inhale mutually or repelling each other effect and produce with this vertical benchmark group of magnets 30b respectively respectively, and can drive these longitudinal sliding motion frame 22 generations vertically moving with respect to this pedestal 10.
See also Fig. 7, for effectively promoting quality and the usefulness of this optical image stabilizator 1, the purpose that the moment that these two vertical benchmark group of magnets 30b and these two vertical drive coil 40b produced this longitudinal rail 213 respectively when the present invention reached following this optical image stabilizator 1 and carries out vibration compensation by these two vertical benchmark group of magnets 30b and these two corresponding vertical drive coil 40b being set, using is repealed by implication:
M1＝F1×La；M2＝F2×Lb；
M3＝F1×Lc；M4＝F2×Ld；
Wherein, M1～M4 is moment; F is acting force; La～Ld is the arm of force;
By this, make M3=M1+M2+M4 by design, the moment that just these two vertical benchmark group of magnets 30b and these two vertical drive coil 40b can be produced is repealed by implication, can be so that this longitudinal sliding motion frame 22 carries out the situation generation that vibration compensation does not have leverage and causes the inclination angle, can make the slip of 213 of longitudinal sliding motion frame 22 and longitudinal rails smooth and easy, improving the start sensitivity of whole optical image stabilizator 1, and then effectively promote quality and the usefulness of this optical image stabilizator 1.
The above only be to describe the present invention in detail with a preferred embodiment, but the present invention is not limited only to the structure of above-described embodiment.All any modifications of doing according to the above embodiment of the present invention are not if break away from the present invention by the technical spirit of two vertical benchmark group of magnets and corresponding two vertical drive coils is set, when being regarded as other form of implementation of the present invention.
Claims (12)
1. the optical image stabilizator of a camera is characterized in that, in order to being arranged in the camera position with respect to the imaging side of camera lens, and for the image sensor setting in order to this camera lens imaging of sensing; This optical image stabilizator includes:
Pedestal is incorporated in the inside of this camera, and has two cross slide waies;
One group of travelling carriage includes horizontal travelling carriage and longitudinal sliding motion frame; This horizontal travelling carriage to be can being incorporated on this pedestal along the mode that these two cross slide waies move back and forth, and has two longitudinal rails; This longitudinal sliding motion frame is used for this image sensor is set, and being incorporated into along the mode that these two longitudinal rails move back and forth on this horizontal travelling carriage;
The lateral fiducial group of magnets is located on this pedestal;
Laterally drive coil is located on the position that corresponds to this group lateral fiducial group of magnets on this group travelling carriage, after importing electric current, can drive this longitudinal sliding motion frame generation with respect to the transverse shifting of this pedestal;
Two vertical benchmark group of magnets are located at respectively the position that corresponds to these relative both sides of image sensor on this pedestal;
Two vertical drive coils, be located at respectively correspond on this group travelling carriage these two vertical benchmark group of magnets the position, after importing electric current, can drive this longitudinal sliding motion frame and produce vertically moving with respect to this pedestal.
2. the optical image stabilizator of camera as claimed in claim 1, it is characterized in that, when wherein a vertical drive coil drives this longitudinal sliding motion frame and produces with respect to the vertically moving of this pedestal, the moment that produces with each longitudinal rail, when driving this longitudinal sliding motion frame and produce with respect to the vertically moving of this pedestal with other one vertical drive coil, cancel out each other with the moment that each longitudinal rail produces.
3. the optical image stabilizator of camera as claimed in claim 1 is characterized in that, this horizontal drive coil is located on this longitudinal sliding motion frame and is corresponded on the position of this lateral fiducial group of magnets.
4. the optical image stabilizator of camera as claimed in claim 1 is characterized in that, these two vertical drive coils are located at respectively on this longitudinal sliding motion frame and are corresponded on the position of these two vertical benchmark group of magnets.
5. the optical image stabilizator of camera as claimed in claim 1, it is characterized in that, this lateral fiducial group of magnets is located at respectively on the position between these two cross slide waies on this pedestal, and this horizontal drive coil is located at respectively and is corresponded between these two cross slide waies on this group travelling carriage and correspond on the position of these two vertical benchmark magnet.
6. the optical image stabilizator of camera as claimed in claim 5 is characterized in that, this horizontal drive coil is located at respectively and is corresponded between these two cross slide waies on this longitudinal sliding motion frame and correspond on the position of this lateral fiducial group of magnets.
7. the optical image stabilizator of camera as claimed in claim 1, it is characterized in that, these two vertical benchmark group of magnets are located at respectively on the position between these two cross slide waies on this pedestal, and these two vertical drive coils are located at respectively and are corresponded between these two cross slide waies on this group travelling carriage and correspond on the position of these two vertical benchmark magnet.
8. the optical image stabilizator of camera as claimed in claim 7 is characterized in that, these two vertical drive coils are located at respectively and are corresponded between these two cross slide waies on this longitudinal sliding motion frame and correspond on the position of these two vertical benchmark group of magnets.
9. the optical image stabilizator of camera as claimed in claim 1 is characterized in that, this longitudinal sliding motion frame includes main body and the coil holder that extends to form of this main body certainly; This lateral fiducial group of magnets is located at the position that corresponds to this coil holder on this pedestal; This horizontal drive coil then is located on this coil holder and between this coil holder and this lateral fiducial group of magnets.
10. the optical image stabilizator of camera as claimed in claim 9 is characterized in that, a vertical benchmark group of magnets is located on this pedestal and between this coil holder and this main body; Wherein a vertical drive coil then is located on the main body of this longitudinal sliding motion frame, and between corresponding vertical benchmark group of magnets and this main body.
11. the optical image stabilizator of camera as claimed in claim 1 is characterized in that, these two cross slide waies are respectively the ganoid circular bodies of rod.
12. the optical image stabilizator of camera as claimed in claim 1 is characterized in that, these two longitudinal rails are respectively the ganoid circular bodies of rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110221260.8A CN102914931B (en) | 2011-08-03 | 2011-08-03 | The optical image stabilizer of camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110221260.8A CN102914931B (en) | 2011-08-03 | 2011-08-03 | The optical image stabilizer of camera |
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| Publication Number | Publication Date |
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| CN102914931A true CN102914931A (en) | 2013-02-06 |
| CN102914931B CN102914931B (en) | 2015-08-12 |
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| CN201110221260.8A Expired - Fee Related CN102914931B (en) | 2011-08-03 | 2011-08-03 | The optical image stabilizer of camera |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103605250A (en) * | 2013-11-06 | 2014-02-26 | 中山联合光电科技有限公司 | Digital camera anti-vibration displacement compensation device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1916695A (en) * | 2006-08-29 | 2007-02-21 | 亚洲光学股份有限公司 | Image sensing module |
| JP2008191282A (en) * | 2007-02-02 | 2008-08-21 | Nidec Copal Corp | Camera shake correction device |
| CN101441385A (en) * | 2007-11-19 | 2009-05-27 | 索尼株式会社 | Image blur correction device, lens barrel and imaging apparatus |
| US20100226632A1 (en) * | 2009-03-04 | 2010-09-09 | Sony Corporation | Image shake correction apparatus and image pickup apparatus |
| CN101957536A (en) * | 2009-07-17 | 2011-01-26 | 三星电子株式会社 | Hand is trembled calibration equipment |
-
2011
- 2011-08-03 CN CN201110221260.8A patent/CN102914931B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1916695A (en) * | 2006-08-29 | 2007-02-21 | 亚洲光学股份有限公司 | Image sensing module |
| JP2008191282A (en) * | 2007-02-02 | 2008-08-21 | Nidec Copal Corp | Camera shake correction device |
| CN101441385A (en) * | 2007-11-19 | 2009-05-27 | 索尼株式会社 | Image blur correction device, lens barrel and imaging apparatus |
| US20100226632A1 (en) * | 2009-03-04 | 2010-09-09 | Sony Corporation | Image shake correction apparatus and image pickup apparatus |
| CN101957536A (en) * | 2009-07-17 | 2011-01-26 | 三星电子株式会社 | Hand is trembled calibration equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103605250A (en) * | 2013-11-06 | 2014-02-26 | 中山联合光电科技有限公司 | Digital camera anti-vibration displacement compensation device |
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| CN102914931B (en) | 2015-08-12 |
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Granted publication date: 20150812 Termination date: 20200803 |