TWI435109B - Elastic supporting structure and optical image stabilizer having the elastic supporting structure - Google Patents

Description

Elastic support structure of optical image anti-vibration device and optical shadow having the same Anti-shock device

The invention relates to an elastic support structure of an optical image anti-vibration device, in particular to improve the permanent deformation of the lens module caused by falling, and to enhance the shock resistance of the lens module.

Due to advances in technology, the size of digital cameras is shrinking. Currently, many small electronic devices, such as mobile phones, have digital camera functions, which are attributed to the miniaturization of lens modules. However, today's adoption The most commonly used miniature lens is the voice coil motor (VCM), which uses a combination of coil magnets and shrapnel to carry a lens in the direction of the imaging optical axis to move back and forth to achieve auto focus or zoom, and for the camera The requirements for quality and function are also gradually improved, for example, the functions of tens of pixels and anti-shake, and the difference between high-end cameras and low-order cameras.

In an optical system composed of a lens module and an image compensation module, an optical system such as a camera or a camera often causes a shock shift of the light path due to an external force factor or a shake of a camera or a camera. The imaging on the image compensation module is unstable, which causes the captured image to be blurred. The most common solution is to provide a compensation mechanism for such image blur caused by vibration, so that the captured image can be sharpened, and the compensation mechanism can be a digital compensation mechanism or an optical compensation mechanism.

The so-called digital compensation mechanism is obtained by the image compensation module. The digital image data is analyzed and processed to obtain a clearer digital image. This method is also often referred to as a digital anti-shock mechanism. As for the optical compensation mechanism, it is common to provide a vibration compensation device on the optical lens group or the image compensation module. This is also often referred to as an optical shock prevention mechanism. However, most of the optical anti-vibration mechanisms currently known involve complicated or bulky bulky mechanisms or components, so there are many disadvantages such as complicated technology, difficult assembly, high cost, or no further reduction in volume, and further Room for improvement.

As shown in FIG. 1, FIG. 1 is a schematic diagram of an optical compensation mechanism disclosed in Japanese Patent Laid-Open No. 2002-207148. The flexible substrate 400a-403a, which is made of a metal wire or the like, carries the circuit substrate 301a of the image sensor 300a as a movement in the direction perpendicular to the optical axis 201a, and transmits the two relative displacement sensors 500a, 501a and a positional motion detector. The detector 503a transmits the displacement amounts of the X-axis and the Y-axis between the lens member 203a (including the lens 200a and the lens holding portion 202a) and the circuit board 301a to an anti-vibration control portion 504a, and controls a movement driving portion 502a to be driven according to the displacement amount thereof. The circuit board 301a performs a corresponding movement in the direction perpendicular to the optical axis 201a to prevent a blurred image of the image sensor 300a due to vibration.

However, the Japanese Patent Application Laid-Open No. 2002-207148 is a conceptual patent that can prevent image blurring caused by jitter, and the inventors have used a similar concept and combined with an autofocus module to develop and design not only Resisting the lateral shift of the X-axis and the Y-axis generated by the hand shake, and further preventing the permanent (plastic) deformation of the lens component in the Z-axis direction (the direction of the imaging optical axis) when falling, achieving reinforcement and better Resist the vibration caused by the impact of the fall.

The main purpose of the present invention is to provide an elastic support structure for an optical image anti-shock device, which is provided by an additional auxiliary line to assist the intensity of an outer string of the upper reed to prevent the optical lens from being caused by falling light. The purpose of plastic deformation in the axial direction.

To achieve the above object, the present invention provides an elastic support structure for an optical image shockproof device. The optical image anti-vibration device includes a movable portion, a compensation module and a plurality of first elastic members (hereinafter referred to as a loop wire), and the optical image anti-vibration device defines one X-axis and one Y-axis perpendicular to each other. And a Z-axis direction. The movable portion is provided with a lens defining an imaging optical axis, and the imaging optical axis is parallel to the Z axis. The two ends of the loop wire are respectively connected to the movable portion and the compensation module, and the movable portion is suspended and fixed on the compensation module along the Z-axis direction. At least one second elastic member (hereinafter referred to as a reed) is disposed on the movable portion, and the reed has a frame portion that is coupled to one of the movable portions, is coupled to an inner frame portion of the lens, and extends And connecting at least one internal chord between the outer frame portion and the inner frame portion, and a plurality of connecting ends on the outer frame portion, wherein one end of each of the lifting loop wires is respectively coupled to the connecting end corresponding thereto .

Each of the connecting end and the outer frame portion of the reed are respectively connected by an elongated outer string and an additional auxiliary line, and the outer string and the additional auxiliary line are both ends It is connected to the connecting end, and the other end of the external string and the additional auxiliary line is connected to the outer frame portion. Maximize the maximum stress when the outer string is lengthened to avoid falling again Over-floating stress, thereby causing permanent deformation of the outer string, and further strengthening the strength of the outer string by increasing the additional auxiliary line to prevent the movable portion suspended by the loop wire from falling when the Z is dropped The amount of axial displacement exceeds the allowable loss.

In order to more clearly describe the elastic support structure of the optical image anti-vibration device and the optical image anti-vibration device having the elastic support structure, the following will be described in detail with reference to the drawings.

Please refer to FIG. 2 and FIG. 3 . FIG. 2 is a perspective exploded view of the optical image anti-shock device of the present invention. FIG. 3 is a schematic perspective view of the optical image anti-shock device of the present invention.

The elastic support structure of the optical image anti-vibration device of the present invention defines an X-axis, a Y-axis, and a Z-axis perpendicular to each other. The optical image anti-shock device 1 includes a movable portion 10, a compensation module 20, a sensing module 30, and a plurality of first elastic members 5. In this embodiment, the plurality of first elastic members 5 are a plurality of loop wires (hereinafter the first elastic members are referred to as a loop wire 5). The movable portion 10 is an autofocus module (hereinafter referred to as an autofocus module) or a zoom module and is provided with a lens 105 defined therein. The lens 105 defines an imaging optical axis 7. In another embodiment not shown, the movable portion 10 may also be a lens module that does not have an auto focus or zoom function. The surface of the movable portion 10 is substantially parallel to the plane formed by the X and Y axes. The compensation module 20 corresponds to the movable portion 10 and is located above the same imaging optical axis 7, and the imaging optical axis 7 The system is roughly parallel to the Z axis. A plurality of loops 5 (first elastic elements) extend substantially parallel to the Z axis, and one of the joint ends 51 and a fixed end 52 of the loop 5 respectively respectively surround the autofocus module 10 and the compensation module 20 The autofocus module 10, the compensation module 20, and the sensing module 30 can be positioned substantially on the same imaging optical axis 7 while being suspended from each other in the Z-axis direction. In addition, the outer side of the optical image anti-vibration device 1 can be covered by a casing 40, so that the sensing module 30 corresponding to the auto-focus module 10 can pass through the consistent hole 401 on the casing 40 to the outside. Take light and shadow.

In the embodiment of the present invention, the auto-focus module 10 includes a base 101, a lens carrier 102, a coil 103, a plurality of magnets 104, a lens 105, an upper cover 106, and an insulating sheet 107. A second elastic member 108, a lower spring piece 109, a magnet fixing member 110, two X-axis magnets 111, and two Y-axis magnets 112. The compensation module 20 is an optical anti-vibration module that can be used to compensate the displacement of the lens 15 caused by vibration in at least the Y-axis and the Z-axis. The compensation module 20 includes a substrate 201, a correction circuit board 202, two X-axis magnet drive coils 203, two Y-axis magnet drive coils 204, an X-axis displacement sensor 205, and a Y-axis displacement sensing. 206. In the present invention, the second elastic member 108 is also a reed structure and is located at an upper portion of the autofocus module 10. Therefore, the second elastic member described below is also referred to as an upper reed 108.

The auto-focus module 10 preferably includes a voice coil motor (VCM), and the base 101 of the auto-focus module 10 is carried on the imaging optical axis 7 (substantially parallel to the Z-axis). With the lens The lens carrier 102 of 105. The lens carrier 102 is wound around the periphery of the lens holder 102 and corresponds to a plurality of magnets 104 disposed at the inner periphery of the base 101 such that the plurality of magnets 104 cooperate with the coil 103 to form a VCM electromagnetic drive mode. The lens carrier 102 and the lens 105 therein can be driven to move linearly in the direction of the imaging optical axis 7. The difference in the magnitude of the current input through the coil 103 causes a different magnetic field to interact with the magnet 104, thereby driving the lens carrier 102 to move back and forth on the imaging optical axis 7 to further achieve the purpose of zooming or focusing.

The lens carrier 102 is disposed in the base 101, and the lens carrier 102 is elasticized by the upper spring piece 108 (second elastic element) and the elastic movable inner ring on the lower spring piece 109. The upper reed 108 and the lower reed 109 may be made of a metal material and have a hollow sheet-like structure, which is formed by mechanical stamping or etching. The upper cover 106 covers the lens carrier 102 and is coupled to the base 101 to further limit the range of travel of the lens carrier 102. The insulating sheet 107 is located between the upper cover 106 and the upper reed 108 for the purpose of insulation. The magnet fixing member 110 is disposed at the bottom of the base 101 and corresponds to the compensation module 20 . The two X-axis magnets 111 and the two Y-axis magnets 112 are respectively disposed on the magnet fixing member 110, and the two Y-axis magnets 112 are respectively located adjacent to the two X-axis magnets 111.

The compensation module 20 mainly moves the autofocus module 10 horizontally perpendicular to the direction of the imaging optical axis 7 (X-axis or Y-axis direction). The substrate 201 corresponds to the pedestal 101 of the autofocus module 10, The correction circuit board 202 is coupled to the substrate 201 and electrically connected to the substrate 201. The two X-axis magnet drive coils 203 are oppositely disposed on the correction circuit board 202 and correspond to the two X-axis magnets 111. The two Y-axis magnet drive coils 204 are oppositely disposed on the correction circuit board 202 and located at The two X-axis magnets drive the adjacent sides of the coil 203 and correspond to the two Y-axis magnets 112. The X-axis displacement sensor 205 is disposed on the substrate 201 for detecting an offset of one of the two X-axis magnets 111. The Y-axis displacement sensor 206 is also disposed on the substrate 201. Above, the offset of one of the two Y-axis magnets 112 is detected. The X-axis displacement sensor 205 and the Y-axis displacement sensor 206 may be displacement sensing elements composed of one of the following: Hall sensor, magnetoresistive sensor (MR Sensor) ), magnetic flux sensor (Fluxgate), optical position sensor, and optical encoder (Optical Encoder). Although in the embodiment shown in FIG. 2, the magnet drive coils 203, 204 are disposed on the correction circuit board 202; however, in another embodiment not shown in the present invention, the magnet drive coils 203 204 can also be directly disposed on the substrate 201, so that the component of the correction circuit board 202 can be omitted.

The sensing module 30 is disposed under the compensation module 20, and the sensing module 30 further includes a circuit board 301 and an image sensing component 302. The image sensing component 302 is disposed on the circuit. The image sensing component 302 of the sensing module 30 is captured by the autofocus module 10 from the outside world. Light image. A plurality of loop wires 5 are made of flexible wires, and the loop wires 5 and the upper reed 108 and the lower spring The sheet 109 can be electrically conductive and can serve as a conductive line for transmitting the driving current of the autofocus module 10.

In the embodiment of the present invention, the loop wires 5 are preferably four strips and are evenly distributed on the outer side of the base 101. The respective connecting ends 51 of the loop wire 5 are connected to the upper reed 108 of the auto-focus module 10, and are evenly distributed in four corners, and are respectively coupled to the upper reed 108 to be lengthened. An outer string 1081 and a new at least one additional auxiliary line 1082 are added. As shown in FIG. 4 and FIG. 5 , it is a schematic diagram of a reed of the optical image anti-vibration device of the present invention and a partial enlarged view of the reed. More specifically, the upper reed 108 is in a hollow sheet-like structure and has an outer frame portion 1085 coupled to the base 101 of the movable portion 10 and coupled to the lens carrier provided with the lens 105. An inner frame portion 1086 on the 102, at least one internal string 1087 extending between the outer frame portion 1085 and the inner frame portion 1086, and a plurality of connecting ends 1088 located on the outer frame portion 1085; The joint end 51 of the loop wire 5 is respectively coupled to the joint end 1088 corresponding thereto. The respective connecting ends 1088 and the outer frame portions 1085 of the upper reed 108 are respectively connected by an external string 1081 and at least one additional auxiliary line 1082. One end of the external string 1081 and the additional auxiliary line 1082 are connected to the connecting end 1088, and the other end of the external string 1081 and the additional auxiliary line 1082 are connected to the outer frame portion 1085. . In the present embodiment, the outer frame portion 1085 of the reed 108 has a square structure (detachable into two halves to form two separate frame members) and has four sides and four corners. And the respective connecting ends 1088 are respectively located at a near corner position of the outer frame portion 1085 of the square, and the outer string 1081 and the additional auxiliary line 1082 are respectively It is connected to two adjacent different sides of the outer frame portion 1085.

That is to say, the extended outer string 1081 and the connecting end 1088 connected to the additional auxiliary line 1082 are respectively disposed at four corners of the upper reed 108 to provide the joint end 51 of the loop 5 fixed. Moreover, the additional auxiliary wire 1082 of the upper reed 108 is connected to the connecting end 1088 to jointly connect the external string 1081 to strengthen the strength of the external string 1081 to avoid the autofocus. The module 10 produces a condition in which the maximum stress exceeds the relief stress of the external string 1081 during a fall test to cause permanent deformation (plastic deformation). Although the number of additional auxiliary lines 1082 disclosed in this embodiment is one, in other embodiments, the additional auxiliary lines 1082 may also be two or more. Further, although the upper reed 108 (second elastic member) and the plurality of loop wires 5 (first elastic members) are separate elements in this embodiment; however, in another embodiment not shown in the drawings, The upper reed 108 (second elastic element) and the plurality of pegs 5 (first elastic element) may also be integrally formed into a single component, such as but not limited to: by a stamping or etching process on the upper reed Each of the connecting ends 1088 of the 108 (second elastic member) first extends horizontally out of the integral loop wire 5 (the first elastic member), and then bends each of the loop wires 5 (the first elastic member) by 90 degrees so that the rings are respectively bent. The extending direction of the wire 5 (first elastic member) and the surface of the upper reed 108 (second elastic member) are perpendicular.

The other fixed end 52 of the loop wire 5 is substantially perpendicular to the Z-axis and is fixed on the compensation module 20, so that the auto-focus module 10 is suspended and fixed on the compensation module 20 by a predetermined distance. The characteristics of the material of the loop wire 5 can make the autofocus module 10 perpendicular to the imaging optical axis 7 Move in the X-axis and Y-axis directions. The length of the loop wire 5 is preferably between 2 mm and 3 mm, and the preferred length is 2.7 mm. The diameter of the loop wire 5 is preferably in the range of 0.04 mm to 0.05 mm, and the preferred diameter value is 0.045 mm. In the present embodiment, the Young's modulus of the material of the loop wire 5 is 120,000 MPa.

In other words, the auto-focus module 10 (moving portion) is suspended and fixed on the compensation module 20 by a predetermined distance, and corresponds to the lower portion of the compensation module 20. The sensing module 30 is located above the same imaging optical axis 7. The flexibility of the loop wire 5 itself is used to provide the X-axis and Y-axis displacement correction and gravity support of the auto-focus module 10, and further the X-axis displacement sensor 205 and the Y-axis displacement sense. The detector 206 senses the horizontal offset between the autofocus module 10 and the sensing module 30 during vibration, and transmits the two X-axis magnet driving coils 203 and the two Y-axis magnets on the correcting circuit board 202. The driving coils 204 respectively drive the two X-axis magnets 111 and the two Y-axis magnets 112 fixed on the magnet fixing member 110 below the auto-focusing module 10, thereby correcting the auto-focusing module 10 perpendicular to the imaging optical axis 7 The horizontal offset between the X-axis and the Y-axis is used to achieve anti-shake and obtain a better image.

Please refer to FIG. 4, FIG. 5, and FIG. 6, wherein FIG. 6 is a schematic diagram of the reed of the conventional optical image anti-shock device. The invention utilizes the length of the outer string 1081 of the upper reed 108 to lengthen to avoid a maximum stress occurring during the fall test exceeding the relief stress of the outer string 1081 to cause permanent deformation (plastic deformation), and by the The auxiliary line 1082 is added to strengthen the strength of the outer string 1081, and the length of the additional auxiliary line 1082 The degree L2 is greater than the length L1 of the outer string 1081 (L2>L1), and the width of the additional auxiliary line 1082 is smaller than the width of the outer string 1081 to prevent the autofocus module 10 from being placed still. The amount of downward displacement in the Z-axis due to gravity exceeds the allowable loss. According to the industry standard in the technical field, in the static state, the downward displacement range of the autofocus module 10 (moving part) in the Z-axis direction due to gravity must be less than 0.005 mm standard to meet the requirements. Required.

Please refer to Table 1. Table 1 shows the reed and loop wire of the conventional optical image anti-shock device shown in Figure 6. The movable part (autofocus module) is set on the X, Y and Z axes during the fall experiment. The respective drop stress (Mpa) corresponding to the moving distance (mm) parameter.

Wherein, as shown in FIG. 6, the conventional reed 4 is connected to the loop wire 5 only through a single relatively short outer string 41, and the relief stress of the loop wire 5 itself is substantially between 930 and 1180 MPa, and the The reed stress of the conventional reed 4 itself is approximately 1080 MPa. Therefore, for the distance that the maximum possible movement of the fall occurs, the displacement parameters of the X, Y, and Z axes of the movable part in the falling experiment are set (the X and Y axes are respectively displaced by 0.15 mm, and the Z axis is displaced by 0.1 mm), and the conventional spring is used. Sheet 4 is equipped with a moving part that has been dropped When the ring 5 is hit, the relief stress of 1945Mpa will exceed the range of 930~1180Mpa allowed by the relief stress of the ring 5 itself; at the same time, the reed 4 will also produce the 1694Mpa stress after the impact. It is far beyond the drift stress of 1080Mpa of the conventional reed 4 itself. Therefore, it can be known from the data of the fall test that both the conventional reed 4 and the loop wire 5 are subjected to a fall impact to cause permanent plastic deformation.

In view of the above, since the reed 4 and the loop 5 of the conventional optical image anti-vibration device are subjected to the stress in the simulated drop test, the stress cannot be lower than the maximum drop stress (Mpa). Therefore, as shown in FIG. 4 and FIG. 5, the reed of the optical image anti-vibration device of the present invention, in particular, the reed 108 fixed in the auto-focus module 10, at the four corners of the upper reed 108 The external string 1081 and the additional auxiliary line 1082 are fixedly coupled to the joint end 51 of the loop wire 5, and the autofocus module 10 is spaced through the fixed end 52 of the loop wire 5. A predetermined distance is suspended and fixed on the compensation module 20. With this design, the autofocus module 10 can be moved downward by gravity by less than 0.005 mm when standing, and the relief stress generated by the upper reed 108 and the loop 5 after falling impact is Each of the tolerances is less than 930~1180 MPa and less than 1080 Mpa of the stress, so that the upper reed 108 still has sufficient dispersion stress to support the autofocus module 10 without being impacted by the fall, and the autofocus mode The movement of the group 10 does not exceed the relief stress of the upper reed 108 itself, so that the upper reed 108 can elastically restore the autofocus module 10 to the original position.

Please refer to Table 2, Table 2 is used to simulate the reed and loop wire of the optical image anti-vibration device of the present invention, causing the movable part during the fall experiment (autofocus mode) Group) The respective fall stress (Mpa) corresponding to the moving distance (mm) parameter set on the X, Y, and Z axes.

As can be seen from the above Table 2, the reed 108 of the optical image anti-vibration device of the present invention firstly lengthens the outer string 1081 by lengthening the length of the outer string 1081 on the upper reed 108. In order to suppress the deformation of the loop wire 5 after being impacted by the fall, the maximum fall stress is further reduced. However, if only the length of the outer string 1081 connecting the loop wire 5 is increased without adding an additional auxiliary line, the autofocus module 10 (moving portion) is set by the displacement parameters of the X, Y, and Z axes of the fall experiment. Under the impact of the fall (the X and Y axes are respectively displaced by 0.15 mm and the Z axis is displaced by 0.1 mm), the autofocus module 10 (moving part) will be lowered by its own gravity in the resting state. Move to a displacement of 0.0152mm, still can not be less than 0.005mm to meet the set specifications. In other words, if the permanent deformation of the outer string 1081 is avoided by simply lengthening the length of the outer string 1081, the amount of displacement of the movable portion in the Z-axis direction when the movable portion is too soft may be caused by the outer string 1081 being too soft. Too big. Therefore, in addition to lengthening the length of the outer string 1081, an additional auxiliary line 1082 must be added to assist the outer string 1081 in supporting the weight of the auto-focus module 10 and the impact force during the fall experiment, and the additional assistance The length L1 of the line 1082 must be greater than the length L2 of the outer string 1081 so as not to affect the shape variable of the outer string 1081. The upper reed 108 preferably has a thickness ranging from 0.3 mm to 0.5 mm and a preferred length of 0.4 mm; and the upper reed 108 has a Young's modulus of 127,000 MPa.

Referring to Table 2 again, by adding the additional auxiliary line 1082 and lengthening the length of the external string 1081, the length of the additional auxiliary line 1082 is greater than the length of the external string 1081 (L2>L1). Under the impact of the displacement parameters set by the X, Y and Z axes of the drop test (X and Y axes are respectively displaced by 0.15 mm and the Z axis is displaced by 0.1 mm), the relief stress of the ring 5 is 929.5 MPa, the upper spring The relief stress of the piece 108 is 880.9 MPa; in addition, under the impact of the displacement parameters set by the X, Y, and Z axes of the drop test (X, Y axis displacement 0.15 mm, Z axis displacement - 0.1 mm), the ring line The lodging stress of 5 is 912.2 MPa, and the relief stress of the upper reed 108 is 934.5 MPa; the above all meet the criterion that the relief stress of the hoisting ring 5 is less than the allowable range of 930 to 1180 MPa and the relief stress of the upper reed 108 is less than 1080 MPa. In addition, the distance of the Z-axis displacement caused by the gravity of the movable portion 10 in the resting state is 0.00386mm also meets the specifications of the Z-axis moving distance of less than 0.005mm moving range, and has obviously overcome various shortcomings of the conventional technology.

Please refer to FIG. 7A and FIG. 7B, which are respectively a second embodiment and a third embodiment of the loop wire of the optical image anti-vibration device of the present invention. The embodiment of the loop wire of the optical image anti-vibration device of the present invention may be a single-line structure extending in the Z-axis direction as shown in FIG. 2 and FIG. 3, or may be the second embodiment as shown in FIG. 7A. The structure of the loop wire 5a having a flexible portion which is reversed in a S shape or the loop wire 5b having a flexible portion having a coil spring shape as in the third embodiment shown in FIG. The upper ends (bonding ends 51a, 51b) and the lower ends (fixed ends 52a, 52b) of the loop wires 5a, 5b are respectively joined to the connecting end 1088 of the upper reed 108 and the substrate 201 of the compensation module 20. The flexible portion which is S-shaped repeatedly or spirally shaped can not only allow the loop wires 5a, 5b to have relatively large softness in the horizontal direction of the XY axis, but also allows the loop wires 5a, 5b to be There is a slight extension in the Z-axis direction.

In summary, the elastic support structure of the optical image anti-shock device of the present invention defines an X, Y, and Z axis, wherein the optical image anti-shock device 1 includes: a movable portion 10, a compensation module 20, and a The sensing module 30 and a plurality of loop wires 5 are provided. The surface of the movable portion 10 is located above the X and Y axes. The compensation module 20 corresponds to the movable portion 10 and is located above the same imaging optical axis 7, and the imaging optical axis 7 is substantially parallel to the Z-axis. A plurality of loops 5 are substantially parallel to the Z-axis, and a joint end 51 and a fixed end 52 of the loop 5 are respectively fixed to the movable portion 10 and the compensation module 20.

Wherein, the movable part 10 (autofocus module) is provided with an upper part Reeds 108, and the joint ends 51 of the respective loops 5 are respectively coupled to one of the elongated strings 1081 and an additional auxiliary line 1082 of the upper reed 108, and the respective loops 5 are separately A fixed end 52 is connected to the compensation module 20, so that the movable portion 10 and the compensation module 20 are corresponding to each other and suspended by a predetermined distance. The flexibility of the loop wire 5 itself is utilized to provide the offset compensation for the anti-shock of the movable portion 10 by the compensation module 20. The length of the additional auxiliary line 1082 of the upper reed 108 must be greater than the length of the outer chord 1081. The relief line 5 of the autofocus module 10 must have a relief stress within a range of less than 930 to 1180 MPa, and the relief stress of the upper reed 108 must be less than the standard of 1080 MPa to conform to the autofocus module 10 in a stationary state. The Z-axis displacement range is less than 0.005mm. That is to say, by using the outer string 1081 to lengthen to avoid the maximum stress occurring when falling again, the stress is excessively increased, thereby causing the permanent string 1081 to undergo permanent deformation (plastic deformation), and further increasing the extra The auxiliary line 1082 strengthens the strength of the outer string 1081 to prevent the movable portion 10 suspended by the loop wire 5 from being displaced in the resting state from exceeding the allowable loss.

The above-mentioned embodiments are not intended to limit the scope of application of the present invention, and the scope of the present invention should be based on the technical spirit defined by the content of the patent application scope of the present invention and the scope thereof. It is to be understood that the scope of the present invention is not limited by the spirit and scope of the present invention, and should be considered as a further embodiment of the present invention.

200a‧‧ lens

201a‧‧‧ optical axis

202a‧‧‧Lens Holder

203a‧‧‧Lens parts

300a‧‧‧Image Sensor

301a‧‧‧ circuit board

400a~403a‧‧‧Flexible parts

500a‧‧‧displacement sensor

501a‧‧‧ Displacement Sensor

502a‧‧‧Mobile Drives

503a‧‧‧ Position Motion Detector

504a‧‧‧Anti-seismic Control Department

1‧‧‧ Optical image anti-shock device

10‧‧‧The Ministry of Activities

101‧‧‧Base

102‧‧‧Lens carrier

103‧‧‧ coil

104‧‧‧ Magnet

105‧‧‧ lens

106‧‧‧Upper cover

107‧‧‧Insulation sheet

108‧‧‧Upper reed

1081‧‧‧External string

1082‧‧‧Additional auxiliary lines

1085‧‧‧Outer frame

1086‧‧‧Inside Frame Department

1087‧‧‧ inner string

1088‧‧‧link

109‧‧‧Reed

110‧‧‧Magnetic fixings

111‧‧‧X-axis magnet

112‧‧‧Y-axis magnet

20‧‧‧Compensation module

201‧‧‧Substrate

202‧‧‧Revision board

203‧‧‧X-axis magnet drive coil

204‧‧‧Y-axis magnet drive coil

205‧‧‧X-axis displacement sensor

206‧‧‧Y-axis displacement sensor

30‧‧‧Sensor module

301‧‧‧ circuit board

302‧‧‧Image sensing components

40‧‧‧shell

401‧‧‧through holes

4‧‧‧Use reeds

41‧‧‧External string

5, 5a, 5b‧‧‧ rings

51, 51a, 51b‧‧‧ joint end

52, 52a, 52b‧‧‧ fixed end

7‧‧‧Video axis

Fig. 1 is a schematic view of a conventional Japanese Patent Application Laid-Open No. 2002-207148.

2 is a perspective exploded view of the optical image anti-shock device of the present invention.

FIG. 3 is a schematic perspective view of the optical image anti-shock device of the present invention.

Figure 4 is a schematic view of the reed of the optical image anti-shock device of the present invention.

Figure 5 is a partial schematic view of the reed of the optical image anti-shock device of the present invention.

Figure 6 is a schematic view of the reed of the conventional optical image anti-shock device.

7A and 7B are respectively a second embodiment and a third embodiment of a loop wire of the optical image anti-vibration device of the present invention.

108‧‧‧Upper reed

1081‧‧‧External string

1082‧‧‧Additional auxiliary lines

1085‧‧‧Outer frame

1086‧‧‧Inside Frame Department

1087‧‧‧ inner string

1088‧‧‧link

Claims (20)

An elastic support structure for an optical image anti-vibration device, the optical image anti-vibration device includes a movable portion, a compensation module and a plurality of first elastic elements, and the optical image anti-vibration device defines one X-axis perpendicular to each other, a Y-axis and a Z-axis direction; the movable portion is provided with a lens defining an imaging optical axis, and the imaging optical axis is parallel to the Z-axis; and the two ends of the first elastic element are respectively connected to the The movable portion and the compensation module are suspended and fixed to the compensation module along the Z-axis direction; and the movable portion is provided with at least one second elastic element having: including the movable portion An outer frame portion, an inner frame portion coupled to the lens, at least one inner chord extending between the outer frame portion and the inner frame portion, and a plurality of connecting ends on the outer frame portion, One end of each of the first elastic members is respectively coupled to the connecting end corresponding thereto; and wherein each of the connecting ends of the second elastic members and the outer frame portion are respectively separated by an outer String and at least one An outer auxiliary line is connected, and one end of the outer string and the additional auxiliary line are connected to the connecting end, and the other end of the outer string and the additional auxiliary line are connected to the outer frame . The elastic support structure of the optical image anti-vibration device of claim 1, wherein the length of the additional auxiliary line is greater than the length of the outer string; and the second elastic element and the plurality of first elastic elements may Is one of the following: the second elastic element and the plurality of first elastic elements are separate elements, and the second elastic element and the plurality of first elastic elements are a single element integrally formed. The elastic support structure of the optical image anti-vibration device of claim 1, wherein the first elastic element is a loop wire, and the structure of the loop wire is one of the following: extending along the Z-axis direction A single-line structure, a loop wire structure having a flexible portion in a S-shaped reverse winding, and a loop wire structure having a coil spring-like flexible portion. The elastic support structure of the optical image anti-vibration device according to claim 1, wherein the second elastic member is a reed, and the outer frame portion of the reed has a square structure and has at least two adjacent a side edge, each of the connecting ends is located at a near corner position of the outer frame portion of the square, and the outer string and the additional auxiliary line are respectively connected to two adjacent different sides of the outer frame portion . The elastic support structure of the optical image anti-vibration device of claim 4, wherein the first elastic element is a loop wire, and the length of the loop wire is between 2 mm and 3 mm; the diameter of the loop wire is The material has a Young's modulus of 120,000 MPa; the thickness of the reed is between 0.3 mm and 0.5 mm; and the Young's modulus of the material of the reed is 127,000 MPa. The elastic support structure of the optical image anti-vibration device of claim 5, wherein the reed is an upper reed, and the movable portion is an auto-focus module, comprising: a base a lens carrier is disposed in the base; a coil is disposed on the periphery of the lens carrier; a plurality of magnets are located at a periphery of the base and correspond to the coil; The plurality of magnets cooperate with the coil to form an electromagnetic drive The movable module can drive the lens carrier to move along the imaging optical axis; a lens is disposed above the imaging optical axis and disposed in the lens carrier; an upper cover covers the lens Above the carrier; an insulating sheet is located between the upper cover and the upper reed; a lower reed is located in the base, and the upper reed is elastically clamped to the lens carrier a magnet fixing member is disposed at a bottom of the base and corresponding to the compensation module; two X-axis magnets are oppositely disposed on the magnet fixing member; and two Y-axis magnets are oppositely disposed on The magnet holder is located above and adjacent to the two X-axis magnets. The optical support structure of the optical image anti-vibration device of claim 6, wherein the compensation module is an optical anti-vibration module and includes: a substrate having a circuit loop corresponding to the base a correction circuit board is coupled to the substrate and electrically connected to the substrate; two X-axis magnet drive coils are oppositely disposed on the correction circuit board and correspond to the two X-axis magnets; The Y-axis magnet drive coil is disposed opposite to the correction circuit board and located adjacent to the two X-axis magnet drive coils and corresponding to the two Y-axis magnets; an X-axis displacement sensor is disposed on the Above the substrate for detection An offset of one of the two X-axis magnets; and a Y-axis displacement sensor disposed on the substrate for detecting an offset of one of the two Y-axis magnets. The elastic support structure of the optical image anti-vibration device according to claim 7, wherein the X-axis displacement sensor and the Y-axis displacement sensor are one of the following displacement sensing elements: Hall Sensor, MR Sensor, Fluxgate, Optical Position Sensor, and Optical Encoder. The elastic support structure of the optical image anti-vibration device according to claim 6, wherein the loop wire and the upper reed and the lower reed are electrically conductive, and can be used as a drive for transmitting the autofocus module. The conductive line of current. The elastic support structure of the optical image anti-vibration device of claim 1, further comprising a sensing module; the sensing module is located below the compensation module, and the sensing module further comprises A circuit board and an image sensing component; wherein the image sensing component is disposed on the circuit board and located on the same imaging optical axis as the movable portion. An optical image anti-vibration device having an elastic support structure, wherein the optical image anti-vibration device defines one X-axis, one Y-axis and one Z-axis direction perpendicular to each other and includes: a movable portion, the active portion is a lens is defined with an imaging optical axis, and the imaging optical axis is parallel to the Z axis; a compensation module is an optical anti-vibration module that can be used to compensate the lens a displacement amount caused by vibration in at least the Y-axis and the Z-axis; and a plurality of first elastic members, wherein the two ends of the first elastic member are respectively connected to the movable portion and the compensation module The movable portion is suspended and fixed to the compensation module along the Z-axis direction; wherein the movable portion is provided with at least one second elastic member, and the second elastic member has: includes: coupled to the movable portion An outer frame portion, an inner frame portion coupled to the lens, at least one inner chord extending between the outer frame portion and the inner frame portion, and a plurality of connecting ends on the outer frame portion, One end of each of the first elastic members is respectively coupled to the connecting end corresponding thereto; and, between the respective connecting ends of the second elastic members and the outer frame portion, respectively, by an external string And connecting at least one additional auxiliary line, one end of the external string and the additional auxiliary line are connected to the connecting end, and the other end of the external string and the additional auxiliary line are connected thereto Outer frame. An optical image anti-vibration device having an elastic support structure according to claim 11, wherein the length of the additional auxiliary line is greater than the length of the outer string; and the second elastic element and the plurality of first elastic elements It may be one of the following: the second elastic element and the plurality of first elastic elements are separate elements, and the second elastic element is a single element integrally formed with the plurality of first elastic elements. An optical image anti-vibration device having an elastic support structure according to claim 11, wherein the first elastic member is a ring a wire, and the structure of the loop wire is one of: a single-line structure extending in the Z-axis direction, a loop wire structure having a flexible portion in a S-shaped reverse winding, and a flexible portion having a coil spring shape. Ring line structure. An optical image anti-vibration device having an elastic support structure according to claim 11, wherein the second elastic member is a reed, and the outer frame portion of the reed has a square structure and has at least two phases. Adjacent sides, each of the connecting ends is located at a near corner position of the outer frame portion of the square, and the outer string and the additional auxiliary line are respectively connected to two adjacent different sides of the outer frame portion on. The optical image anti-vibration device with an elastic support structure according to claim 14, wherein the first elastic element is a loop wire, and the length of the loop wire is between 2 mm and 3 mm; the diameter of the loop wire The system is between 0.04 mm and 0.05 mm; the Young's modulus of the material of the loop wire is 120,000 MPa; the thickness of the reed is between 0.3 mm and 0.5 mm; and the Young's modulus of the material of the reed is 127,000 MPa. An optical image anti-vibration device having an elastic support structure according to claim 15, wherein the reed is an upper reed, and the movable portion is an auto-focus module, which includes: a pedestal; a lens carrier disposed within the pedestal; a coil disposed at a periphery of the lens carrier; a plurality of magnets located at a periphery of the pedestal and corresponding to the coil The plurality of magnets cooperate with the coil to form an electromagnetic driving module to drive the lens carrier to move along the imaging optical axis a lens disposed above the camera optical axis and disposed within the lens carrier; an upper cover covering the lens carrier; an insulating sheet located on the upper cover and Between the upper reeds; the lower reed is located in the base, and is elastically clamped with the upper reed; the magnet fixing member is disposed at the bottom of the base, and Corresponding to the compensation module; two X-axis magnets are disposed opposite to the magnet fixing member; and two Y-axis magnets are oppositely disposed on the magnet fixing member and located adjacent to the two X-axis magnets . An optical image anti-vibration device having an elastic support structure according to claim 16, wherein the compensation module comprises: a substrate having a circuit loop corresponding to the base; and a correction circuit board, Attached to the substrate and electrically connected to the substrate; two X-axis magnet drive coils are oppositely disposed on the correction circuit board and corresponding to the two X-axis magnets; the two Y-axis magnets drive the coil, The two sides of the two X-axis magnet drive coils are disposed adjacent to the correction circuit board and are adjacent to the two Y-axis magnets; and an X-axis displacement sensor is disposed on the substrate for Detecting an offset of one of the two X-axis magnets; and a Y-axis displacement sensor disposed on the substrate for detecting The offset of one of the two Y-axis magnets. The optical image anti-vibration device with an elastic support structure according to claim 17, wherein the X-axis displacement sensor and the Y-axis displacement sensor may be displacement sensing elements formed by one of the following: Hall Sensor, MR Sensor, Fluxgate, optical position sensor, and Optical Encoder. An optical image anti-vibration device having an elastic support structure according to claim 16, wherein the loop wire and the upper reed and the lower reed are electrically conductive, and can be used as the autofocus module. The conductive line that drives the current. An optical image anti-vibration device having an elastic support structure as described in claim 11, further comprising a sensing module; the sensing module is located below the compensation module, and the sensing module is further The device includes: a circuit board and an image sensing component; wherein the image sensing component is disposed on the circuit board and is located above the same imaging optical axis as the movable portion.