TW201215911A - Anti-shake tilt correction structure of autofocus module - Google Patents

Abstract

An anti-shake tilt correction structure of autofocus module, including an autofocus module within which a lens group can be assembled, and capable of driving the lens group for making vertical movement in the light incidence direction (Z axis), in order to perform automatically focusing action; a frame encapsulating the autofocus module, a support elastic member is located at the top of frame and connected to the top of the autofocus module; a correction drive unit equipped at the bottom of the autofocus module for driving the autofocus module to perform tile action outside the frame in the left and right direction (X axis) or the front and rear direction (Y axis) so as to correct the image offset caused by tremor, thereby enabling the autofocus module to move around and tilt so as to make corrections to the shaking caused by tremor, and achieving the efficacy of more simple anti-shake structure, and more rapid tremor correction.

Description

201215911 IV. Designated representative map: (1) The representative representative of the case is: (2). (2) A brief description of the symbol of the representative figure:

If there is a chemical formula in the case of this case, please reveal the type: Chemicals that can best display the characteristics of the invention. 10 Autofocus module 11 Lens 12 Image sensing element 14 Coil 15 Shrapnel 16 Base 17 Magnet 20 Frame 40 Correction drive 41 Correction magnet Component 42 Correction coil assembly 43 Movement amount sensing component VI. Description of the invention: [Technical Field] The present invention is an anti-shake (AS) tilt of an autofocus module (Aut〇F_s, af) Correction structure, especially for a kind of lens that can automatically tilt the front and rear of the field group for hand-shocking 201215911

1 I is precisely corrected for shaking. [Prior Art] A presses the size of the digital camera due to advances in technology, and many small electronic devices, such as mobile phones, have been built with digital camera functions, all thanks to the lens mode. The miniaturization of the group, however, the requirements for camera quality and function are gradually improved to megapixels, multi-point autofocus (AF) and anti-shake (AS), etc., to highlight high-end cameras and low The difference in order. However, each additional function of the camera module must add a corresponding module mechanism for the function, and the more the module mechanism, the volume will inevitably increase, so how to reduce the multiple function mechanisms of the camera module becomes The development of the camera module manufacturers. There are many types of autofocus drive structures in the conventional micro lens. Currently, the voice coil motor (VCM) is most commonly used, and a combination of a coil magnet and a spring piece is used to carry a lens for moving forward and backward in the direction of the optical axis to achieve The effect of autofocus or zoom. Because of its small size, low power consumption, accurate actuation displacement and low price, it is suitable for short-distance driving of micro lens autofocus, such as US 7,262,927, US 7,196,978, US 7,002,879, US 6,687,062. , US20070133100, JP2005037865, JP2005258355, and so on. For the anti-shake technology, it is mainly achieved in several ways, such as the imaging element uses the mechanism bracket to compensate the movement to compensate for the image blurring caused by the vibration process; or if the lens is provided with a mechanical structure Eliminate hand shake; or use two gyroscopes (Gyro Sensor) to enter the horizontal and vertical vibration detection of the imaging element, and use magnetic push to compensate the moving parts and so on. For example, patent documents US20070292119, US20070009243, JP08122840, JP11305280, JP11220651, and the like. The inventor of the present invention filed the invention patent No. 098138999 "Image autofocus structure with anti-shake" on November 17, 2009, as shown in Fig. 1, which is a three-dimensional exploded view, which uses mobile

The motion signal generated by the sensor drives the entire AF module to make a horizontal moment movement of the X-axis or the Y-axis to correct the shaking caused by the jitter. On the basis of the previous structure, the inventor of the present invention redesigned a new anti-shock structure of the lens autofocus module, which is different from the previous method of moving the autofocus module horizontally before, after, and horizontally to correct the shaking of the hand. Using the autofocus module h as the fulcrum, the tilting of the front, rear, left and right is used to compensate for the shaking caused by the shock, which makes the anti-shake structure more

^, and more quickly correct the shock function to meet the needs of high-end camera mirror modules. SUMMARY OF THE INVENTION The main object of the present invention is to provide an automatic tilting correction structure for the collision module 2, which can be used for the front, rear, left, and right tilting of the center autofocus module of the autofocus module. 1 The resulting New Zealand, the structure of the remaining hand shock is simpler, and the effect of the hand shock is corrected more quickly. [S] 4 201215911 Dynamic focus module, which can be assembled - mirror H can drive the t-line into the direction (2 axes) to move up and down to focus on the frame The automatic listening, if provided, is provided with a domain elastic member disposed at the upper end of the outer frame and connected to the upper end of the automatic matching group, and the automatic hard mold (4) is used in the outer frame to make the center of the elastic member as a fulcrum. 'It can be used for front and rear, left and right swinging tilt; and a moving part is arranged under the autofocus module in the outer frame, for the left and right direction (X axis) or the front and rear two self-axis movements) to correct the hand The image shift caused by the earthquake. a shaft) a fixed portion of the circumference, wherein the first movable portion is connected to the first fixed portion; and the first movable portion is connected to the first fixed portion; Within the inner circumference, the second fulcrum of the two scales, at a 90-degree angular focal axis portion relative to the first fulcrum, the second movable material is connected to the automatic pair. The other technical feature of the present invention is Positive = time-to-face slanting structure, wherein the supplemental module paralysis includes - a correction magnet assembly, the system is configured to include at least one X-axis correction magnet and at least - Υ|^' positive magnetic error _ρ一1 1 glaze supplement to small complement line, miscellaneously placed on the bottom surface of the frame, including the two-axis correction coil and at least the -γ-axis correction coil, respectively; k X-axis correction magnet and the γ Axis correction magnets can be produced separately 5 201215911 ^Electromagnetic field drives the autofocus module for the axis tilt and - axle amount - piece, Wei set in shout = ^ a shaft sensor and detector, respectively:: two = = Positive magnet and the γ-axis correction magnet detect the X-axis or amount to achieve an accurate correction position. , Mobile to achieve the above purpose 'The invention is further ::::: coffee, module anti-shake tilt correction = dynamic focus module peripherals for the complex number of magnet components, and self-contained - correction line _ pieces, # 4 Positive drive section at least, correction coil: r: Y: The positive frame contains r a set of magnet elements, which can respectively generate an electromagnetic field® to move from: = oblique or γ-axis tilt; and a moving amount sensing component, with a sigh The bottom surface of the frame, including the χ-axis sensor and the f-tester, respectively corresponds to a set of magnet elements for detecting the amount of movement of χ = to achieve the corrected position of the shot. A further technical feature of the present invention is that the correcting drive 2 = hand shake tilt correction structure, wherein the complement: the movement comprises: a correction magnet assembly disposed on the lower end side edge, comprising at least one The χ axis correction magnet and at least the correction coil assembly are disposed at the lower end of the frame 匕3 at least one X-axis correction coil and at least one of the 补-axis correction magnets and the 丫 sleeve complement ^= 77 electromagnetic field to drive the focus The module is X-axis tilt or γ-cylinder tilt; and - the moving amount sensing component is disposed in the frame - including a reducer, corresponding to the face 乂201215911 X-axis or γ-axis shifting axis correcting magnet and the The γ-axis corrects the magnet and detects the momentum 'to achieve a precise correction position. [Embodiment] In order to enable the reviewing committee to further understand the techniques, means and functions adopted for the intended purpose of the present invention, please refer to the following description of the invention and the drawings, and it is believed that

And the features, which may be derived from the description of the present invention, are not intended to be illustrative of the invention. Restriction Referring to Figure 2, it is a plan view of the first embodiment of the anti-shake correction of the present invention. The invention mainly improves the method of correcting the structure of the image by modifying the structure of the image by using the anti-shake image auto-focus knot and using the auto-focus module for horizontal movement of the X-axis or the γ-axis. In the center of the autofocus module ^ fulcrum, for the left and right direction (X axis) or the front and rear direction (γ axis) tilting action *, ', to correct the image shift caused by hand shake. The structure of the present invention mainly includes an autofocus module 1〇, an outer frame 20, a supporting elastic member 30, a correcting driving portion 4〇, and a shaking sensing component (not shown), wherein the autofocus module The upper lens can carry the lens 11 , and the lens 11 can take in a light image, and the lens u and an image sensing component 12 are in a linear position in the light entering direction (z-axis direction), and the auto-focusing module 1〇 The lens u can be driven to move back and forth in the light entering direction (Z-axis direction), so that the lens u can focus the captured image on the image sensing element 12. 201215911 The auto-focusing module ίο preferably can be a voice coil motor to drive the structure 'including the lens-container with the lens of the lens u' the mirror county carrier outer cover - _ 14, the class carrier connection The movable portion of the J-shaped piece 15 is fixedly connected to the base 16 of the movable portion 15. The base 16 is provided with a corresponding magnet 14 corresponding to the coil 14. The outer frame 20 is covered with the auto-focus module 1 〇, and the swaying elastic piece 3G is disposed at the upper end of the outer frame 2G, and is connected to the upper end of the auto-focus module 1G for reading the auto-focus mode. Group 1 () is suspended in the outer frame 20. The supporting elastic member 30 can make the auto-focusing module 1 sway as a fulcrum according to the supporting elastic member 30, and perform a diagonal movement of the front, rear, left and right. Please refer to FIG. 3 , which is a schematic view of an embodiment of the reading elastic member of the present invention. The supporting elastic member 30 includes an outer peripheral fixing portion 31 , a first movable portion 32 and a second movable portion 33 ′ wherein the outer peripheral fixing portion 31 is fixedly connected to the upper end of the outer frame 20; the first movable portion 32 is disposed within the inner circumference of the outer peripheral crotch portion, and is connected to the outer peripheral fixing portion 31 by two sets of symmetrical first fulcrums 321; and the second The living (1) is disposed within the inner circumference of the first movable portion 32, and is connected to the first movable portion at a position of 9 degrees with respect to the first branch point 321 by two sets of symmetrical second fulcrums 331. 32 'and the second movable portion % can be connected to the top end of the auto focus module", wherein the first active portion 32 can cause the auto focus module 1 to be tilted to the left and right (X axis), and the second The movable portion 33 can swing the AF mode 10 into the front and rear (Y-axis), or the eighth 201215911 movable portion 32 can swing the AF module 1 as the front tilt. The second movable portion 33 can swing the automatic module 10 to the left and right (axis). ..., please refer to the second function shown in the second section of the "Factor's Driving Department". The crane is used to make the AF module 10 in the outer frame 20 for left and right or front and rear directions. The tilting action of the χ axis or ¥ pumping is used to correct the image shift caused by the hand shake.

The correction driving unit 40 includes a correction magnet assembly 41, a correction coil assembly 42 and a movement amount sensing unit 43. The correction magnet assembly 41 is disposed at the bottom of the autofocus module 1〇 and includes at least one X-axis. Correcting the magnet and at least one γ-axis correction magnet. The correction coil assembly 42 is disposed on the inner bottom surface of the frame 2, and includes at least one X-axis correction coil and at least one γ-axis correction coil, which respectively generate an electromagnetic field corresponding to the X-axis correction magnet and the γ-reduction positive magnet. The autofocus module 10 is driven to perform X-axis tilt or γ-axis tilt. The movement 1 sensing component 43 is disposed on the bottom surface of the frame 10, and includes an X-axis sensor and a γ-axis sensor respectively corresponding to the 补-axis correction magnet and the Υ-axis correction magnet respectively. The amount of movement of the χ or γ axis is such that it achieves an accurate correction position. The X-axis sensor and the γ-axis sensor can be a Hall sensor, a magnetoresistive sensor (MR Sens〇r), a magnetic flux sensor (Fluxgate), and an optical type. Position sensor, optical encoder (Optical Encoder) and other displacement sensing elements. Generally, the high-end hand-held device is provided with a shaking sensing component, such as a 9 201215911 angular velocity sensor (Gyro Sensor), an acceleration sensor (Accelerometer), etc., and the shaking sensing component can sense the shaking of the hand to generate a shaking signal. And transmitting to the correction driving unit to drive the autofocus module to perform the X-axis or γ-axis inclination, and the present invention can use the shaking sensing component in the high-end handheld device, or can also set the shaking feeling in the present invention. Measuring component.

Referring to Figure 4, there is shown a plan view of a second embodiment of the correction drive unit of the present invention. The correction driving unit 40 includes a correction coil assembly 42 and a movement amount sensing component 43. The magnet assembly uses the magnet 17 in the autofocus module 10, that is, the correction driving unit 40 and the autofocus module. 1〇Share a group of magnets. The correction coil assembly 42 is disposed on the inner side surface of the frame 10, and includes at least an X-axis correction coil and at least a “γ-axis correction coil, which respectively correspond to the magnet elements 17 of the group-group auto-focus module 10, and can generate electromagnetic fields respectively. The autofocus module 1G is driven to perform X-axis tilt or γ-axis tilt. The moving sensing element 43 is disposed on the inner bottom surface of the frame 1 : an x-axis sensor and a γ-axis sensor, and correspondingly correspond to the magnet element 17 in the auto-focus module 1G. Used to detect the amount of movement of the X-axis or the Y-axis to achieve an accurate correction position. And then please refer to the five materials, which is a schematic plan view of the second embodiment of the invention. The correction driving unit 40 includes a supplemental iron=: correction coil component 42 and a movement amount sensing component 43, and the correction component 41 is disposed at the lower edge of the S] group 10, and includes at least —X-axis correction magnet and to;;” 201215911 γ-axis correction magnet. The lower end side of the frame 10 is a γ-axis correction coil. The correction coil unit 42 is disposed on the frame surface, and includes at least one X-axis correction coil and at least one γ-axis correction magnet and the Υ-axis correction magnet, respectively, which can generate electromagnetic field rotation. The pair of domains is skewed or tilted

Corresponding to the X-axis correction magnet and the 补-axis correction magnet, the movement amount of the χ-axis or the γ-axis is detected to achieve an accurate correction position. In summary, the present invention provides a leaf that is quite different from the conventional ones, and can improve the overall use value, and is not found in the publication or public use before the application, and the invention has been in accordance with the requirements of the invention patent. Application. However, the above-mentioned drawings and descriptions are only examples of the present invention, and those skilled in the art can make other improvements according to the above descriptions, and these changes still belong to the inventive spirit of the present invention. The scope of the patents defined below. 201215911 » [Simple description of the diagram] Figure 1 is a perspective exploded view of the conventional 098138999. Figure 2 is a plan view showing a first embodiment of the present invention. Figure 3 is a schematic view of an embodiment of the supporting elastic member of the present invention. Figure 4 is a plan view showing a second embodiment of the present invention. Figure 5 is a plan view showing a second embodiment of the present invention. [Main component symbol description]

10 Autofocus module 11 Lens 12 Image sensing element 14 Coil 15 Spring 16 Base 17 Magnet 20 Frame 30 Support elastic member 31 Peripheral fixing portion 32 First movable portion 321 First fulcrum 33 Second movable portion 331 Second fulcrum 40 Correction drive unit 41 Correction magnet assembly 42 Correction coil assembly [s] 12 201215911 43 Movement amount sensing unit

[S3 13

Claims (1)

201215911 VII. Scope of application for patents: 1. The structure of the tilting correction of the dynamometer of the dynasty group includes: an autofocus module, which can be assembled into a light entering direction (z axis); : 'Can drive the lens; move up and down' to focus on the autofocus module, which has a support elastic to 2 at the upper end of the outer frame and connect the upper end of the automatic reduction group. • The two are suspended in the outer stern, so that they can be adjusted according to the choice of the bomb - the left and right swings are tilted; and the autofocus module is moved in the outer frame with the tilting direction of the rearward direction (Υ axis), ) or move forward. u The hand-shake red image is biased as follows. 2. The self-tilting correction structure described in the scope of the patent application section [in which the elastic component of the branch is more resistant to the shock of the group; a peripheral fixed portion is fixedly connected to The upper part of the outer frame is a first movable part, and the first fulcrum of the two sets of symmetry is connected to the inner edge of the two points, and the two symmetrical fulcrums of the two groups are within one phase and two edges. To be placed, connected to the first movable portion, ': the corner of the autofocus module. ~ - The movable part can be connected = the self-oblique correction structure of the second full rhyme of the application for the full-length, wherein the first-active part of the anti-hand shake is tilted as the X-axis, and the first _, ^ ^ u auto-focus module [ The SI active part can tilt the AF 14 201215911 % ink module to the γ axis. 4. The self-tilting correction structure according to item 2 of the patent application scope, (4) the anti-hand shake of the first-active module is used as an oblique rocker, and the first: the auto-focus module module is used as the X-axis Tilt "1. The moving part system can make the anti-shake correction of the auto-focusing module according to the first item of the auto-focusing range, and the structure, wherein the correcting driving part includes. a correction magnet assembly is disposed at the bottom of the autofocus module, and includes at least one axial correction magnet and at least a Y-axis correction magnet. The correction coil assembly is disposed on the bottom surface of the frame and includes at least one axial correction coil. And 4 - Υ axis correction coils respectively corresponding to the axis correction magnet and the Υ axis correction magnet, respectively, can generate an electromagnetic field to drive the auto focus module for X-axis tilt or ¥ axis tilt; and a moving amount sensing component, matching The bottom surface of the frame comprises a 轴-axis sensor and a 感-axis sensor respectively corresponding to the X-axis correction magnet and the 补-axis correction magnet' detecting the movement amount of the X-axis or the Υ-axis, so that Accurate correction position β is achieved. 6. The anti-shake correction of the autofocus module described in item 5 of the patent application is as follows. The X-axis sensor and the 丫 丫 系 can be Hall sensor (surface Se), magneto-resistance sensor (Sensor), magnetic flux sensor (Fluxgate), optical position Displacement sensing elements such as sensors and optical encoders. 7_ The anti-shake [s] oblique correction structure of the automatic pair domain group as described in the third paragraph of the patent application scope, wherein the autofocus module is peripherally covered with a plurality of magnet elements, and the correction driving part includes : 15 201215911 » I A correction line, which is located on the side of the shaft w, and includes at least one y-axis correction coil and at least γ _ positive coil, respectively corresponding to the - part ' can respectively generate electric material to drive the auto focus module X-axis tilt or γ-axis tilt; and - the moving amount sensing component is disposed on the inner bottom surface of the pivot frame, and includes an X t sensor and a Υ Υ 11 , , , , 分 组 组 组 组 组 组贞 x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x The axis sensor can be a Hall sensor (_SSensor), a magneto-sensitive resistance => 0, a magnetic flux sensing _uxgate, an optical position sensor, an optical encoder (Optical Encoder), etc. = The anti-seismic tilt correction structure of the automatic ^ module described in the application patent (4), wherein the correction The driving part includes a magnet assembly "· disposed at a lower edge of the autofocus module, a U-X-axis correction magnet and at least a γ-axis correction magnet; and a correction coil assembly is disposed in the frame The inner lower screen includes at least one X-axis correction coil and at least one γ-axis correction coil, respectively, for the X-axis correction magnet and the Υ-axis correction blue, respectively, and the magnetic excitation can respectively drive the focus module to perform X-axis tilt or The gamma axis is tilted; and a moving amount sensing component is disposed on the bottom surface of the frame, and includes a χ-axis sensor and a γ-axis sensor respectively corresponding to the X-axis correcting magnet and the Υ-axis correcting magnet, Detect the movement of the χ or γ axis to achieve a precise correction position. 201215911 10. The anti-shake tilt correction structure of the autofocus module according to claim 9, wherein the X-axis sensor and the γ-axis sensor can be a Hall sensor (Hall Sensor) ), a magneto-sensitive sensor (MR Sensor), a flux sensor (Fluxgate), an optical position sensor, an optical encoder (Optical Encoder) and other displacement sensing elements. The anti-shock part of the auto-focus module is described as: the two-shock 'generating-shake signal, the basis for transmitting the tilt. Focus module for x or γ axis