TWI286262B - Camera module - Google Patents

Abstract

A camera module comprises a base, an image detecting unit, a lens joined to the base, a frame joined to the base and provided for the image detecting unit moving therein, and a solenoid joined to the base to position the image detecting unit. The solenoid has a post movable between a first position and a second position. The frame moves the image detecting unit via electromagnetic force to modify the image blur caused by vibration. When the modification is performed, the post is in the first position and has no contact with the image detecting unit, whereby the image detecting unit is capable of moving with the frame. When the modification is not performed, the post is in the second position and has contact with the image detecting unit, whereby the image detecting unit is positioned by the post.

Description

L286262 Nine, invention description: [Technology of the invention belongs to the image camera, especially the camera module of the side. [Previous technology #?] As shown in Fig. 1, the American real brakes are like a vibrating air. 4 寻 利苐 5266988 discloses a shadowing device for a camera: the image vibration suppression device is disposed in the lens and is provided by using a camera. Brake _ Acceleration 70 measurements * The angular acceleration information of the operator's vibration camera, Mirror 2:: After the road calculation, drive a drive component 'This drive component moves the scene (4) in the lens to correct or suppress the operator. Produced by the vibrating field camera. Like the phenomenon of pulling paste. However, when the driving element (4) is not continuously driven, the singularity and the motion suppression device must be held, and the wide-angle current is supplied to the appropriate size, so that the camera consumes a considerable amount of power. As shown in Fig. 2, Japan specifically registers the third mobile device 174^ 174 to open a moving mechanism. The eve mechanism (4) electric reading drives the image sensing unit to move in the direction. This can also be used to correct or suppress image blurring caused by the operator's vertical vibration axis; and it is suitable for any type of lens. Piezoelectric: The voltage produced by the camera is driven by the voltage to properly move the CCD to correct the image; the weight of the constant member is heavier than the single-lens, so that a relatively large pressure _CCD element must be used to drive the CCD element. . Although this method can be used to research low-lens optics, the bulky piezoelectric element has such a correction or suppression of hand 2, image quality, and the camera volume also increases. SUMMARY OF THE INVENTION The main object of the present invention is to provide a photographic module having. , and the correction mechanism of the image blur caused by the vibration of the photographing device, and the operation is 0757-.眶(10);0_5312;chentf Μ Μ _ A Mechanism 1286262 1 The position of the image sensing unit can be easily fixed. The photographic module of the present invention comprises a fixing base, an image sensing unit, a photographic lens combined with the fixing base, a moving frame combined with the fixing seat and providing movement of the image sensing unit, and a solenoid valve combined with the fixing seat. The motion frame uses electromagnetic force to drive the motion of the image sensing unit to correct the correction mechanism that causes image blur due to vibration when the camera is operated. The solenoid valve has an abutment post movable between a first position and a second position. When the correction mechanism is used, the abutting post of the solenoid valve is in the first position and is not in contact with the image sensing unit, so that the image sensing unit can move with the moving frame; when the correction mechanism is not used, the electromagnetic valve abuts The post is in the second position and is in contact with the image sensing unit, such that the image sensing unit fixes its position through the abutment post of the solenoid valve. The photographic module of the present invention further includes a protective spacer disposed between the image sensing unit and the solenoid valve to abut the force of the image sensing unit when the abutting post of the damper solenoid valve is in the second position. The moving pivot frame includes a moving frame movably disposed on the fixed seat and a carrying seat movably disposed on the moving frame, and the image sensing unit is fixed on the carrying seat; further, the moving frame further comprises: moving the frame and a first guiding member coupled to the fixing seat and movable in a first direction relative to the fixing seat, at least one first magnet disposed on the fixing seat, at least one first disposed on the moving frame and opposite to the first magnet a coil, and a 笫 雈 element disposed beside the first coil ′ by driving a voltage to the first coil such that a magnetic force change occurs between the first coil and the first magnet to drive the moving frame along the first guiding member One direction of movement. The first guiding member includes a pair of first guiding rods disposed on the fixing base and parallel to each other, and respectively disposed on the plurality of first holding portions of the moving frame; respectively, the first holding portions respectively cover the first holding portion The guide rod 'couples the moving frame to the fixed seat, and the moving frame is movable along the axial direction of the first guiding rod. Further, the moving frame drives the image sensing unit to move along the axial direction of the first guiding rod. 0757-A21308ITWF(N2); 00105312;chentf 6 1286262 x Axis of the pivot As described above, the N magnetic pole and the S magnetic pole of the first magnet are arranged in the first direction. As described above, the moving frame further includes a second guiding member that is coupled to the moving frame and movable relative to the fixed seat in a second direction, disposed on the fixed seat, the at least one second magnet, and disposed on the bearing At least one second coil seated on the second magnet opposite to the second magnet, and a second Hall element disposed adjacent to the second coil, by applying a voltage to the second coil, causing a magnetic change between the second coil and the second magnet And driving the carrier: the second guiding member is moved in the second direction.曰

The second guiding member includes: a pair of second guiding rods disposed on the moving frame and parallel to each other, respectively disposed on the plurality of second clamping portions of the bearing seat; respectively, by the second holdings & The two guide rods 'couple the moving frame to the carrier, and the carrier can move relative to the axis of the second guide. In the present invention, the second direction is different from the first direction; preferably, the axial direction of the first guide is perpendicular to the axial direction of the second guide. Τ As described above, the N magnetic pole and the S magnetic pole of the second magnet are arranged along the axis of the second pivot. In the present invention, when the image sensing module is in a stationary state, half of the first Hall element is above the N pole of the first magnet, and the other half of the first Hall element is in the first Above the S pole of the magnet; and half of the second Hall element is above the N pole of the second magnet, and the other half of the second Hall element is above the S pole of the second magnet. [Embodiment] Hereinafter, an image sensing module of the present invention will be described in detail by way of a preferred embodiment and the accompanying drawings. Before the present invention is described in detail, it is to be noted that the relative positional terms used in 0757-A21308ITWF(N2); 〇0105312;chentf 7 1286262 in the following description, for example, "first direction x,,," The second direction ¥,,, "the third direction z" is based on the coordinate direction indicated by each figure, and the "first direction", the "second direction" and the "third direction" A third embodiment is a perspective view of a photographic module according to an embodiment of the present invention. As shown in FIG. 3, the photographic module of the present invention includes a fixing base 20 and a photographic lens coupled to the fixing base 2 一侧 on one side. 30 and a solenoid valve 4 结合 coupled to the other side of the fixed seat 20. The moving frame % is located between the solenoid valve 40 and the photographic lens 30, and the fixed seat 2 〇 is coupled. The horse image sensing unit 60, such as a CCD, is disposed in motion. On the frame 50. When an object is imaged by the photographic lens 30, an image of the object is formed on the image sensing unit 6A. Fig. 4 is an exploded perspective view of the frame of the present invention. As shown, the lens barrel 31 of the photographic lens is fixed by a screw (not shown) The solenoid valve 40 has a pair of wing portions 41Α, 41Β, and the pair of wings 4ια are used, so that the solenoid valve is fixedly coupled to the other side of the fixed seat 2〇 by screws 42Α, 42Β. The motion frame 50 is located between the solenoid valve 40 and the photographic lens 30 and is coupled to the fixed base 2 ;; the moving frame 50 includes a plurality of coils (not shown), and is provided with the coils to create a mosquito net. The magnetic force of the magnet interaction on the 20, the axis movement moves 50. The image sensing unit 60 has a low-pass light-passing sheet 32 and a rectangular protective frame 33 facing the photographic lens 3 ,, which is opposite to the photographic lens 3 The opposite side has a protective pad 34; when the image sensing unit 60 is embedded in the moving frame 5〇, the low-pass filter 32 and the rectangular protective frame 33 are pinched to the moving frame 帛5〇 and the image. Between the sensing units 1 . 5 is a cross-sectional view of the photographic module of the embodiment of the present invention, in which the abutment column of the electromagnetic valve is not imaged; the _ is a sectional view of the camera , wherein the abutting post of the solenoid valve is in contact with the image sensing unit. There is an abutment post 43, which is controlled by an external voltage signal, so that the abutting column is moved between the first position and the second position, as shown in Fig. 5, when the abutment column 〇 757- A21308ITWF(N2); 00105312;chentf 8 1286262 • l ζ4th setting sundial, the abutment post 43 is not in contact with the image sensing unit 60; at this time, the moving frame (4) can be driven by electromagnetic force to drive the image sense The measuring unit 60 moves. As shown in the first port 5 B, when the abutting post 43 is in the second position, the abutting post * 3 is in contact with the image sensing unit 60; at this time, the moving frame 50 is not The magnets 21 21 and 21 B on the mount 2 generate electromagnetic interaction force, and the abutment post 43 of the solenoid valve 40 is in contact with the image sensing unit 60 to fix its position. If the contact frame 43 is not in contact with the image sensing 60, the moving frame (10) is arbitrarily moved so that the image sensing unit 6G does not fall into the imaging range of the camera lens 30. In addition, the protective pad 34 is disposed between the abutting post 43 and the Lu image sensing unit 60 to prevent excessive force from being destroyed when the image sensing unit 60 is fixed when the abutting post 43 is in the second position. Unit 60. Fig. 6 is a rear elevational view of the moving frame in the embodiment of the present invention. The motion frame 50 in the embodiment of the present invention can be applied to a camera device to suppress or correct an image blur phenomenon generated by an operator vibrating camera. The moving frame 5 of the embodiment includes a moving frame 51 disposed on the fixing base 20. The moving frame 51 has a first hollow portion 59, and is movably disposed on a carrying base 52 of the moving frame 51. A sensing unit 6 〇, such as a CCD, is disposed on the carrier 52. Further, the photosensitive surface of the image sensing unit 60 is the direction toward the photographic lens 30, that is, the direction of the third direction z. Xin 7 is a perspective view showing the relative position between the Hall element and the magnet. As shown in Fig. 7, the holder 20 has a pair of first magnets 21A, 21C, a pair of second magnets 21B, 21D, and a pair of first pivots 25, 26 that are parallel to each other. The first pair of magnets 21A, 21C are disposed in parallel with each other on both sides of the hollow portion 29, wherein the N magnetic poles and the S magnetic poles of one first magnet 21A are arranged along the first direction X, and the N magnetic poles of the other first magnet 21C The /S magnetic poles are also arranged along the first direction X. The second pair of magnets 21B, 21D are also disposed in parallel with each other on both sides of the hollow portion 29, wherein the N magnetic poles and the S magnetic poles of one second magnet 21B are arranged along the second direction Y, and the N magnetic poles of the other second magnet 21D The S magnetic poles are also arranged along the second direction Y. Furthermore, the same magnetic poles S of the first magnets 21A, 21C are disposed toward the hollow portion 0757-A21308ITWF(N2); 00105312; the chentf 9 1286262 4 1 position 29, and the same magnetic poles s of the second magnets 2IB, 21D are disposed toward the hollow portion 29. . In the present invention, the relative positions of the first magnets 21A, 21C and the relative positions of the second magnets 2IB, 21D are not limited, and the different magnetic poles may face the hollow portion 29. The first magnets 21A, 21C and the second magnets 21B, 21D are respectively fixed to the fixing base 2 by glue, for example, UV glue or thermosetting glue. Further, the first magnet 21A and the second magnet 21B penetrate the fixing base 20 and are exposed on the side facing the solenoid valve 4''. Fig. 8 is a perspective view showing the combination of the carrier and the moving frame; and Fig. 9 is a plan view showing the coil and the Hall element provided on the moving frame and the carrier, respectively. As shown in FIG. 8 and FIG. 9, the carrier 52 has two wing portions 521a and 521b, and a pair of second coils 522a and 522b and a second Hall are respectively disposed on the two wing portions 521a and 521b. Element 524. The second coil 522a is disposed on the wing portion 521a, the second Hall element 524 is disposed on the wing portion 521a adjacent to the second coil 522a, and the other second coil 522b is disposed on the other wing portion 521b. The pair of second coils 522a, 522b are substantially rectangular in shape with their long sides parallel to each other. Further, the moving frame 51 also has two wing portions 51a, 511b, and a pair of first coils 512a, 512b and a first Hall element 514 are not disposed on the two wing portions 511a, 51b, respectively. The first coil 512a is disposed on the wing portion 511a, the first Hall element 514 is also disposed on the wing portion 511a adjacent to the first coil 512a, and the other first coil 512b is disposed on the other wing portion 511b. The pair of first coils 512a, 512b are also substantially rectangular with their long sides parallel to each other. Furthermore, on the outside of the moving frame 51, there are two first holding portions 515a, 515b adjacent to the wing portion 521a of the carrying base 52, the first holding portions 515a, 515b respectively having a hole 5151a, 5151b; On the outer side of the frame 51, there are two first grip portions 515c, 515d adjacent to the other wing portion 521b of the carrier 52. The two first grip portions 515c, 515d respectively have a hole 5151c, 515Id. A pair of first pivots 25, 26 are disposed in parallel with each other; wherein the shorter first pivot 25 δ is again placed on one side of the magnet 21A and the magnet 21D, and the other longer first pivot 26 is transported away The direction of the hollow portion 29 is provided on one side of the magnet 21B. In the specific implementation of 0757-A21308ITWF(N2); 00105312;chentf 10 1286262 ct, the longer first pivot 26 passes through the holes 5151c, 5151d of the two first grips 515c, 515d of the moving frame 5i. After being gripped, it is fixed to the grip portions 25b, 25c of the fixing base 2; and the shorter first pivot shaft 25 passes through the hole 5151a of the first grip portions 515a, 515b of the moving frame 51, 5151b is further fixed in the grip portion 25a of the fixing base 2〇. Thereby, the pair of first pivots 25, 26 and the grips 25a, 25b, 25c, 515 &, 51513, 515 (:, 515 (1 constitute a first guiding member 70; so that the moving frame 51 can be The first guiding member 70 is moved in the first direction. As shown in FIG. 8 and FIG. 9, the carrier 52 further has a hollow portion 525; and the image sensing unit 60 is placed in the hollow portion 525. The carrier 52 has a circuit board (not shown), and the image sensing unit 60 is electrically connected to the circuit board; and is fixed on the circuit board and the image sensing unit 60 is surrounded by a rectangular frame 526 of the carrier 52. The pair of frame walls 5261, 5262 of the rectangular frame 526 parallel to the second direction Y respectively have second grip portions 523a, 523b, 523c, 523d; and the second grip portions 523a, 523b, 523c, 5 respectively have one Holes 5231a, 5231b, 5231c, 5231d. A pair of second pivots 27, 28 are parallel to the second direction Y; wherein a second pivot 27 passes through the grips 516a, 516b on the moving frame 5i, and is inserted into the bearing The holes 5231a, 523 lb of the second grip portions 523a, 52 of the seat 52 are fixed behind, and the other second pivot shaft 28 passes through the moving frame 51, respectively. The upper portion of the grip portions 516c, 516d and the second grip portions 523c, 523d of the carrier 52 are coupled to the carrier 52. Thereby, the pair of second pivots 27, 28 And the grip portions 516a, 516b, 516c, 516d, 523a, 523b, 523c, 523d constitute a second guiding member 8G; such that the carrier 52 can be moved by the second guiding member 80 in the second direction γ. Figure 10 is a camera device having the image sensing module of the present invention. As shown in Figures 3 and 10, the camera device 1 has a shock sensing element 11 〇 therein, for example, an angular acceleration τ ο or acceleration. The component, after the vibration sensing component 11 〇 senses the user's vibration amount of the photographic device 100, passes through the pulse width modulation circuit 12 or the number 757-A21308ITWF(N2); 00105312; the chentf 1286262 bit circuit A voltage signal is supplied to the coils 512a, 512b, 522a, 522b. The coils 512a, 512b, 522a, 522b respectively generate a variable magnetic field, and after the two magnets 21A, 21C and the second magnets 21B'21D act. The carrier 52 is in the first direction relative to the fixed seat 20 X generates motion, and the carrier 52 generates motion relative to the fixed seat 20 in the second direction γ, so that the image sensing unit 6 can also generate corresponding motion in the first direction and the second direction γ. Suppresses or corrects image blurring caused by the operator vibrating the camera. Fig. 7 is a view showing the position of the first Hall element 514 and the second Hall element 524 with respect to the first magnet 21A and the second magnet 21B when the carrier is stationary. In a specific embodiment of the present invention, when the photographic device 100 is in a stationary state, the motion frame 5〇

Also in a stationary state, a half of the first Hall element 514 is in the first magnet 21A.

Above the N pole, the other half of the first Hall element 514 is in the first magnet 21A

Above the S pole; and the half of the second Hall element 524 is above the N pole of the second magnet 21B, and the other half of the second Hall element 524 is above the s pole. Therefore, the amount of change in the magnetic field measured by these second and second Hall elements 514, 524 is zero. When the user operates the camera device 1 and the camera device iOO generates a vibration, the coils 512a, 512b' 522a, 522b and the first and second magnets 21A, 21B, 21C, 2ID act to drive the carrier 52. The first direction X and the second direction Y generate corresponding motions, and the first and second Hall elements 514 and 524 measure the amount of change of the magnetic field, and thereby the movement amount and the moving frequency of the carrier 52 can be calculated. And timely correct the signal provided by the pulse width modulation circuit or the digital circuit. In summary, the photographic module of the present invention can achieve the following functions and advantages, so that the object of the invention can be achieved: In addition, since the present invention provides a solenoid valve fixed image sensing unit, when the motion frame does not need to provide tremor correction When the mechanism is used, the position of the image sensing unit can be fixed by the electromagnetic cymbal. ' 0757-A21308ITWF(N2); O0105312;chentf 12 1286262 II. Because the invention changes the position of the image sensing unit relative to the optical axis, the position of the lens in the lens is not modulated, so the peripheral brightness and imaging quality of the lens are not reduced. . 3. Because the present invention uses a pair of coils and a pair of magnets to drive the image sensing unit in the vertical optical axis direction, the volume of each electronic component is small, and it is easy to reduce the volume of the camera device.

0757-A21308ITWF(N2); 00105312;chentf 1286262 [Simplified Schematic Description] Fig. 1 is a motion picture suppression device for a camera disclosed in U.S. Patent No. 5,266,988, and Japanese Patent Application No. 3551174 3 is a perspective view of a photographic module according to an embodiment of the present invention; 4 is an exploded perspective view of a photographic module according to an embodiment of the present invention; and FIG. 5A is a photographic module of an embodiment of the present invention; a cross-sectional view, wherein the abutment post of the solenoid valve is not in contact with the image sensing unit; FIG. 5B is a cross-sectional view of the camera module of the embodiment of the present invention, wherein the post of the solenoid valve is in contact with the image sensing unit; Rear view of the moving frame in the embodiment of the present invention; FIG. 7 is a perspective view showing the relative position between the Hall elements and the magnet; FIG. 8 is a perspective view showing the combination of the carrier and the moving frame; The top view shows the line and Hall elements provided on the moving frame and the carrier, respectively; 'Figure 10 shows a photographic apparatus having the photographic module of the present invention.

[Description of main component symbols] 20~fixed seat; 21B, 21D~second magnet; 25a, 25b, 25c~holding part 30~photographic lens; 32~low pass filter; 34~protective pad; 41A, 41B ~ wing; 43 ~ abutment column; 21A, 21C ~ first magnet; 25, 26 ~ first axis; 27, 28 ~ second pivot; 31 ~ lens barrel; 3 3 ~ rectangular protection frame; Solenoid valve; 42A, 42B~screw; 50~motion frame; 0757-A21308ITWF(N2); 00105312;chentf 1286262 51~ moving frame; 59~first hollow part; 80~second guiding member; 120~pulse width Modulation circuit; 512a, 512b~first coil; 515a, 515b~first grip portion 52~bearing; 60~image sensing unit; 110~vibration sensing element; 511a,511b~wing; 514~first 515c, 515d~first grip; 516a, 516b, 516c, 516d~ grip; 521a, 521b~ wing; 522a, 522b~second coil;

523a, 523b, 523c, 523d~second gripping portion; 524~second Hall element; 525~ hollow portion; 526~rectangular frame; 5151a, 5151b~ hole; 5151c, 5151d~ hole; 5231a, 5231b, 5231c, 5231d~ hole; 5261, 5262~ frame wall

0757-A21308ITWF(N2);00105312;chentf 15

Claims (1)

1286262 X. Patent application scope: 1. A photographic module, comprising: a fixing base; a photographic lens combined with the fixing seat; a moving frame mounted on the fixing seat and movable relative to the fixing seat; An image sensing unit fixed to the moving frame and movable relative to the fixed seat through the moving frame; and a solenoid valve having an offset between a first position and a second position a post, wherein when the image sensing unit generates motion for the mount through the motion frame ancestor, the abutting post is located at the first position without touching the image sensing unit, when the image sensing unit When the motion frame is not moved relative to the fixed seat, the abutting post of the electromagnetic valve is located at the second position to abut the image sensing unit, thereby fixing the position of the image sensing unit. 2. The photographic module of claim 1, wherein the moving frame comprises: a first guiding member, the moving frame is coupled to the fixing seat and can be along a first direction relative to the fixing seat At least one first coil is disposed on the moving frame; at least one first magnet is fixed on the fixing seat and disposed opposite to the first coil; and a first Hall element is common with the first coil Provided on the moving frame and disposed beside the first coil, by providing a voltage to the first coil, causing a magnetic force change between the first coil and the first magnet to drive the frame through the first guiding The member moves in the first direction. 3. The photographic module of claim 2, wherein the motion frame further comprises: 0757-A21308ITWF(N2); 00105312; chentf 1286262 - moving frame by the first guiding member and the fixing seat Combining with and movable relative to the seat, and the first coil and the first hall are moved on the frame; and: a carrier is mounted on the moving frame and is phased, The photographic module described in claim 3, wherein the squatting seat generates motion. Wherein the carrier further includes a second guiding member, such that the moving frame is coupled to the carrier and movable relative to the moving frame in a second direction; at least one second coil is disposed on the carrier; a second magnet disposed on the fixing base and opposite to the second coil; a second Hall element disposed on the carrier together with the second coil and disposed beside the second coil, provided by And a voltage is applied to the second coil such that a magnetic force change is generated between the second coil and the second magnet and the carrier is driven to move in the second direction by the second guiding member. 5. The photographic module of claim 1, further comprising: a protective spacer disposed between the image sensing unit and the electromagnetic valve for buffering the abutting post of the solenoid valve When in the second position, it abuts the power of the image sensing unit. The photographic module of the second aspect of the invention, wherein the first guiding member comprises: a plurality of first holding portions respectively disposed on a pair of parallel frame sides of the moving frame; And a pair of first guiding rods, which are parallel to each other and are respectively held by the middle portion of the first holding portions, and the first guiding rods are fixed on the fixing seat, wherein the first one is fixed by The holding portion is respectively sleeved on the first guiding rod, so that the moving frame and the fixing seat are soldered 0757-A21308ITWF(N2); 00105312;chentf 17 1286262' and the moving frame can be along the first guiding rod Movement in the direction of the axis. The photographic module of claim 4, wherein the second guiding member is placed on the fixing frame of the carrier without a plurality of second holding portions; and The rods are parallel to each other and are respectively held by a portion of the second grip portion and the second guide rod is fixed to the moving frame, and the second grip portions are respectively sleeved on the movable portion The moving frame is coupled to the carrier on the two guiding rods, and the carrier is movable along the axial direction of the second guiding rod. 8. The photographic module of claim 7, wherein the second guide rod has an axis direction that is perpendicular to an axial direction of the first guide rod. 9. The photographic module of claim 8, wherein the first magnet comprises an N magnetic pole and an S magnetic pole, and the N magnetic pole and the S magnetic pole are arranged along an axial direction of the first guiding rod. 10. The photographic module of claim 9, wherein the second magnet comprises N magnetic poles and S magnetic poles, and the N magnetic poles and the S magnetic poles are arranged along an axial direction of the second guiding rod. The photographing module of claim 1, wherein the image sensing unit is half of the first Hall element when the image sensing unit is in a stationary state by the abutting post of the solenoid valve. A portion is located above the N pole of the first magnet, and the other half of the first Hall element is located above the S pole of the first magnet. The photographic module of claim 11, wherein a half of the second Hall element is in a stationary state when the image sensing unit is in a stationary state by the abutting post of the solenoid valve. The N-pole is located above the N-pole of the second magnet, and the other half of the second Hall element is located above the S-pole of the second magnet. 0757-A21308ITWF(N2);00105312;chentf