CN113014749B - Optical component tilting movable device, camera device and electronic device - Google Patents
Optical component tilting movable device, camera device and electronic device Download PDFInfo
- Publication number
- CN113014749B CN113014749B CN201911325722.3A CN201911325722A CN113014749B CN 113014749 B CN113014749 B CN 113014749B CN 201911325722 A CN201911325722 A CN 201911325722A CN 113014749 B CN113014749 B CN 113014749B
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- 230000003287 optical effect Effects 0.000 title claims abstract description 74
- 238000004804 winding Methods 0.000 description 7
- 238000005452 bending Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000000696 magnetic material Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0264—Details of the structure or mounting of specific components for a camera module assembly
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Studio Devices (AREA)
- Lens Barrels (AREA)
Abstract
本发明提供一种活动部的最大要求推力小的光学部件倾斜活动装置、照相机装置以及电子设备。光学部件倾斜活动装置(1)具备固定部、具有光学部件保持部(7)的活动部、连结支撑固定部和活动部的支撑部以及驱动活动部的驱动部。从而,支撑部件是具有光入射部(16)和受光部的结构,板簧(5)位于该光入射部(16)与受光部之间的高度。因此,难以产生由于活动部摆动时的推力的姿势差而导致的偏差。因此,能够提供一种活动部的最大要求推力小的光学部件倾斜活动装置(1)、照相机装置(100)以及电子设备。
The present invention provides an optical component tilting movable device, a camera device, and an electronic device, wherein the maximum required thrust of the movable part is small. The optical component tilting movable device (1) comprises a fixed part, a movable part having an optical component holding part (7), a supporting part connecting and supporting the fixed part and the movable part, and a driving part driving the movable part. Thus, the supporting part is a structure having a light incident part (16) and a light receiving part, and the leaf spring (5) is located at a height between the light incident part (16) and the light receiving part. Therefore, it is difficult to produce deviations caused by the posture difference of the thrust when the movable part swings. Therefore, it is possible to provide an optical component tilting movable device (1), a camera device (100), and an electronic device, wherein the maximum required thrust of the movable part is small.
Description
Technical Field
The present invention relates to an optical component tilting device, a camera device, and an electronic apparatus, which are used in an electronic apparatus such as a smart phone.
Background
Among camera devices used in electronic devices such as smartphones, there is a camera device that corrects shake by swinging and tilting a camera module around axes of an X axis and a Y axis that are orthogonal to each other and orthogonal to an optical axis. Patent document 1 discloses a technique related to such a camera device. The portable terminal with camera disclosed in patent document 1 includes: a fixing part including a camera module, a pair of module guides, a yoke, a top plate, and four permanent magnets; a movable part including a base, four tilting coils, and a blocking member; and a gimbal spring connecting the fixed portion and the movable portion. The four groups of permanent magnets and 2 groups of tilt coils are arranged in opposition in the X-axis direction, and the remaining 2 groups are arranged in opposition in the Y-axis direction. When current flows through the two inclined coils facing in the X-axis direction, the movable portion swings around the axis of the Y-axis, and when current flows through the two inclined coils facing in the Y-axis direction, the movable portion swings around the axis of the X-axis.
[ Prior Art literature ]
[ Patent literature ]
Japanese patent application laid-open No. 2014-10287 (patent document 1)
Disclosure of Invention
[ Problem ] to be solved by the invention
However, the technology of patent document 1 has a structure in which 2 through holes arranged in parallel in the Y direction are bored in a central fixing portion in the center of a gimbal spring, and 2 protrusions in the central portion of a thermal welding base are fitted into the 2 through holes. Therefore, there is a problem in that a deviation occurs in the posture difference of the thrust force when the movable portion swings, and the maximum required thrust force becomes large.
The present invention has been made in view of the above problems, and an object of the present invention is to provide an optical component tilting device, a camera device, and an electronic apparatus, each of which has a small maximum required thrust of a movable portion.
[ Means for solving the problems ]
In order to solve the above problems, an optical component tilting device according to a preferred embodiment of the present invention includes: a fixing part; a movable part having an optical component holding part for holding the optical component; a support portion for connecting and supporting the fixed portion and the movable portion; and a driving unit including a coil and a magnet having an opposing surface opposing the coil and driving the movable unit, wherein the driving unit includes a plate spring having a rectangular frame shape and fixing an inner side portion of the movable unit, an outer side portion fixed to the fixing unit, and a gimbal spring portion forming a ring shape and connecting the inner side portion and the outer side portion, wherein the gimbal spring portion is connected to the outer side portion on the + -X side by a1 st connecting portion, and is connected to the inner side portion on the + -Y side by a2 nd connecting portion, wherein the fixing unit includes a bottom plate having a housing and a light receiving portion, and wherein the plate spring is disposed in the space between the plate spring and the plate spring in the Y side portion, and wherein the plate spring is disposed in the Y side portion. Therefore, it is difficult to generate a deviation due to a difference in the posture of the thrust force when the movable portion swings. Therefore, an optical component tilting device, a camera device, and an electronic apparatus, in which the maximum required thrust of the movable portion is small, can be provided.
In this aspect, the leaf spring may have: fixing an inner portion of the optical member holding portion; an outer portion fixed to the fixing portion; and a gimbal spring portion connecting the inner portion and the outer portion, the optical member holding portion holding a side surface of the optical member. The fixing portion may have a case having a bottom plate portion and a side plate portion, and the outer side portion may be fixed to an upper surface of the side plate portion.
In addition, the optical component may be an AF motor including an image sensor.
In addition, the optical member may be a prism.
A still further preferred embodiment of the present invention is a camera device including the optical member tilting device.
In another preferred embodiment of the present invention, the electronic device is provided with the camera device.
[ Effect of the invention ]
The optical component tilting device of the present invention comprises a fixed part, an optical component holding part for holding an optical component, a supporting part for connecting and supporting the fixed part and the movable part, and a driving part for driving the movable part. The support portion has a leaf spring that supports the movable portion so as to be movable obliquely with respect to the fixed portion, and the optical member has a structure including a light incident portion and a light receiving portion, and the leaf spring is located at a height of the light incident portion and the light receiving portion holder. Therefore, it is difficult to generate a deviation due to a difference in the posture of the thrust force when the movable portion swings. Therefore, an optical component tilting device, a camera device, and an electronic apparatus, in which the maximum required thrust of the movable portion is small, can be provided.
Drawings
Fig. 1 is a front view of a smartphone 101, and the smartphone 101 is an electronic device mounted with a camera apparatus 100 including an optical component tilting device 1 according to embodiment 1 of the present invention.
Fig. 2 is a perspective view of the optical component tilting device 1 of fig. 1.
Fig. 3 is a perspective view with the cover 25 removed from fig. 2.
Fig. 4 is a perspective view with the upper side plate portion 29 removed from fig. 3.
Fig. 5 is a perspective view with the lower side plate portion 28 removed from fig. 4.
Fig. 6 is a view of fig. 5 as seen from the arrow a direction.
Fig. 7 is a perspective view of fig. 5 from another angle.
Fig. 8 is a perspective view of fig. 7 from another angle.
Fig. 9 is a perspective view with a portion of the leaf spring 5 removed from fig. 8.
Fig. 10 is a perspective view with the AF motor 15 removed from fig. 9.
Fig. 11 is a perspective view of the lower holding portion 78 removed from fig. 10.
Fig. 12 is a perspective view of the AF motor 15 and the optical member holding portion 7 removed from fig. 8.
Fig. 13 is a perspective view of the optical component tilting device 1A according to embodiment 2 of the present invention, with the cover 25, the upper plate 29, and the lower plate 28 removed.
Fig. 14 is a perspective view of fig. 13 from another angle.
Fig. 15 is a perspective view of fig. 13 from another angle.
Detailed Description
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
< Embodiment 1>
As shown in fig. 1, in embodiment 1, a camera device 100 is mounted on a smart phone 101. The camera apparatus 100 includes: an AF motor 15 as an optical member, which has a lens body 18 and an image sensor 19 that photoelectrically converts light transmitted through the lens body 18; and an optical component tilting device 1 that holds an AF motor 15 to tilt it. AF is a abbreviation of Autofocus.
Hereinafter, the optical axis direction along the optical axis of the lens body 18 is appropriately referred to as the Z direction, one direction orthogonal to the Z direction is appropriately referred to as the X direction, and the directions orthogonal to both the Z direction and the X direction are appropriately referred to as the Y direction. In addition, the +z side, which is the object side, of the optical axis of the lens body 18 is referred to as the upper side, and the-Z side, which is the opposite side, is referred to as the lower side.
The AF motor 15 incorporates a driving source for driving the lens body 18 and an image sensor 19 in the body 17, and the lens body 18 protrudes from the upper side of the body 17 and is exposed. The lens body 18 has a light incident portion 16 having a perfect circle shape on an upper end surface thereof. The image sensor 19 is fixed to the lower end surface of the body 17 such that the light receiving portion of the image sensor 19 faces the lens body 18. The AF motor 15 drives the lens body 18 back and forth in the Z direction, which is the optical axis direction. The driving source of the AF motor 15 may be, but is not limited to, a magnet, a coil, a piezoelectric element, a shape memory alloy, or the like.
The optical component tilting device 1 includes a housing 2, a leaf spring 5, and an optical component holding portion 7. The housing 2 has a cover 25 and a portion formed by combining a lower side plate portion 28 and an upper side plate portion 29 on the bottom plate portion 20. The cover 25 is assembled to the bottom plate portion 20 from the outside of the lower side plate portion 28 and the upper side plate portion 29. The leaf spring 5 has an outer portion 56, an inner portion 54, and a gimbal spring portion 55. The outer side portion 56 of the leaf spring 5 is sandwiched between the upper surface of the lower side plate portion 28 and the lower surface of the upper side plate portion 29, and the optical component holding portion 7 that holds the side surface of the AF motor 15 is fixed to the inner side portion 54 of the leaf spring 5. In the space between the bottom plate portion 20 and the leaf spring 5, each pair of magnets 9 and coils 8 as driving portions is arranged. The cover 25, the bottom plate 20, the lower side plate 28, the upper side plate 29, and the coil 8 form fixed portions, and the leaf spring 5, the optical member holding portion 7, and the magnet 9 form movable portions movable with respect to the fixed portions.
The details of the structure of each part are described below. As shown in fig. 2, the cover 25 has a box shape with one opened side. A through hole 250 is formed in the upper surface of the cover 25.
The bottom plate portion 20 has a substantially square shape corresponding to the cover 25. As shown in fig. 5, 6, 7 and 8, the soft magnetic member 3 is fixed to the upper surface of the bottom plate portion 20. The soft magnetic member 3 has: a substantially quadrangular ring-shaped bottom 30; a1 st upright portion 31 extending and standing inward from the center of each of the +x side and X side of the inner periphery of the bottom portion 30; and a2 nd standing portion 32 which extends and stands inward from the center of each of the +y side and the Y side. The 1 st and 2 nd standing parts 31 and 32 are wound with the winding coil 8, respectively. The 1 st standing portion 31 and the 2 nd standing portion 32 are disposed inside the windings of the coil 8. The coil 8 is wound around the Z-direction as a winding shaft, for example, counterclockwise when viewed from the +z side. The end surfaces of the distal ends of the 1 st and 2 nd stand portions 31, 32 and the surface on the +z side of each coil 8 are substantially one surface, but the surface on the +z side of each coil 8 may be further upward, and the end surfaces of the distal ends of the 1 st and 2 nd stand portions 31, 32 may be further upward.
The lower side plate 28 and the upper side plate 29 have a hollow substantially quadrangular prism shape. As shown in fig. 3, a through hole 290 is provided in the upper side plate 29. The lower surface of the lower side plate portion 28 is fixed to the periphery of the bottom portion 30 of the soft magnetic member 3 in the upper surface of the bottom plate portion 20. The lower surface of the lower plate 28 is fixed to the lower surface of the outer periphery 56 of the leaf spring 5. The lower surface of the upper side plate 29 is fixed to the upper surface of the outer side 56 of the leaf spring 5. Thereby, the leaf spring 5 is kept in a floating state with respect to the bottom plate portion 20.
The leaf spring 5 is formed of a soft magnetic material having elasticity. The plate spring 5 supports the optical member holding portion 7 so as to be movable obliquely with respect to the fixed portion. The plate spring 5 is located at a height between the light incident portion 16 and the light receiving portion of the AF motor 15. The leaf spring 5 has two outer portions 56, an inner portion 54, and a gimbal spring portion 55 connecting them. The two outer side portions 56 have the followingThe inner corners of the word are rounded into an arc shape. The two outer side portions 56 are arranged apart from each other on the +x side and the-X side, and have a substantially square outer shape corresponding to the peripheral edges of the lower side plate portion 28 and the upper side plate portion 29 as a whole. The center of the outer side portion 56 facing the inner side end edge is recessed twice as a recess 560.
The inner portion 54 has a rectangular frame shape. The inner portion 54 has a convex portion 540 at the outer edge in the X direction. The inner side 54 has a1 st attachment portion 61 for attaching the magnet 9 at an inner side edge in the X direction. The 1 st mounting portion 61 is formed by bending a rectangular piece protruding from the center of the inner side edge in the X direction of the inner side portion 54 toward the side opposite to the protruding portion 540 toward the-Z side. The 1 st mounting portion 61 is formed so as to be substantially flush with the end edge thereof. In embodiment 1, the bending tip is further bent outward in the X direction to prevent the magnet 9 described later from falling.
The magnet 9 is disposed in the 1 st mounting portion 61. The magnet 9 has a rectangular parallelepiped shape having an opposing surface 95 opposing the coil 8 and an opposing surface 96 on the opposite side thereof. The magnets 9 are attached to the 1 st attachment portion 61 and the inner portion 54 on the upper side surfaces of the opposite surfaces 96. A portion of the upper side is located below the boss 540. In the present embodiment, the lower surface is also attached to the portion of the 1 st attachment portion 61 bent outward in the X direction. As shown in fig. 6, a part of the lower side of the magnet 9 in the 1 st mounting portion 61 and a part of the upper side of the coil 8 wound around the 1 st standing portion 31 face each other with a gap interposed therebetween. In embodiment 1, the end face of the front end of the 1 st upright 31 is located on the-Z side of the center of the magnet 9. The winding shaft direction of the coil 8 wound around the 1 st upright 31 is orthogonal to the normal direction of the facing surface 95 of the magnet 9. The opposing surface 95 of the magnet 9 is magnetized to an N pole, for example, and the opposing surface 96 is magnetized to an S pole. The upper side surface of the coil 8 faces the convex portion 540 together with the end surface of the distal end portion of the 1 st upright portion 31.
As shown in fig. 4 and 5, the gimbal spring 55 is formed in a ring shape between the outer side 56 and the inner side 54, and is connected to the outer side 56 by a connecting portion 551 on the ±x side and is connected to the inner side 54 by a connecting portion 552 on the ±y side. The portion of the gimbal spring portion 55 corresponding to the convex portion 540 of the inner portion 54 is formed as a curved portion 550 that extends outward in the X-directionWords. A connecting portion 551 is provided at the center of the bending portion 550. The connecting portion 551 is connected to the concave portion 560 of the outer portion 56.
The 2 nd attachment portion 62 is provided at the outer end edge in the Y direction of the gimbal spring portion 55. The 2 nd attachment portion 62 is formed by bending a rectangular piece protruding outward from the center of the Y-direction outer end edge of the gimbal spring portion 55 in the-Z direction. The 2 nd mounting portion 62 is formed to protrude outward from the end edge. In embodiment 1, the bent tip is further bent inward in the Y direction to prevent the magnet 9 from falling.
The magnet 9 is disposed in the 2 nd mounting portion 62. The opposite surface 96, the upper side surface, and the lower side surface of the magnet 9 are attached to the corresponding surfaces of the 2 nd attachment portion 62. A part of the lower side of the magnet 9 in the 2 nd mounting portion 62 and a part of the upper side of the coil 8 wound around the 2 nd standing portion 32 face each other with a gap interposed therebetween. In embodiment 1, the end face of the distal end portion of the 2 nd upright portion 32 is located on the-Z side of the center of the magnet 9. The winding shaft direction of the coil 8 wound around the 2 nd upright portion 32 is orthogonal to the normal direction of the facing surface 95 of the magnet 9. The opposing surface 95 of the magnet 9 is magnetized to an N pole, for example, and the opposing surface 96 is magnetized to an S pole. The upper side surface of the coil 8 faces the body portion of the gimbal spring portion 55 together with the end surface of the distal end portion of the 2 nd upright portion 32.
As shown in fig. 4 and 5, a coupling portion 552 is provided at the center of the Y-direction inner end edge of the gimbal spring portion 55. The connecting portion 552 is connected to the end edge on the Y-direction outer side of the inner portion 54.
Below the inner side of the inner portion 54, there is an optical member holding portion 7. The optical member holding portion 7 has a box shape having an outer periphery corresponding to the inner portion 54. The upper end portion of the optical member holding portion 7 is fixed to the inner portion 54. The optical member holding portion 7 surrounds the lower side of the AF motor 15 from the outside and the lower side.
As shown in fig. 3, the lens body 18 is exposed so as to protrude from the through hole 790 of the body 17 of the AF motor 15, and the body 17 is exposed from the through hole 290 of the upper side plate 29. A gap is provided between the through hole 290 and the body 17 so as not to interfere with tilting movement of the AF motor 15. As shown in fig. 2, the lens body 18 is exposed so as to protrude from the through hole 250 of the cover 25.
When the coil 8 wound around the 1 st upright portion 31 is energized, the 1 st upright portion 31 becomes an electromagnet whose end surface at the tip end portion becomes the magnetic pole surface. When a current flows so that the end face thereof becomes, for example, an N pole, the magnet 9 generates a reaction force in the +z direction and the-Z direction with respect to the opposing face 95, but the reaction force in the +z direction is large, and therefore moves with respect to the +z direction. When a current flows so that the end face becomes an S-pole, attractive force is generated in the magnet 9 against the facing surface 95. In this way, the magnet 9 moves in the-Z direction at a position where the center position in the Z direction of the facing surface 95 coincides with the position in the Z direction of the end surface of the front end portion of the 1 st upright portion 31 so that the attractive force in the +z direction and the attractive force in the-Z direction are balanced. When a current flows so as to generate a reverse force in the coil 8 wound around the 1 st upright 31, the coupling portion 552 is deformed, and the movable portion swings about the axis of the Y axis. When the coil 8 wound around the 2 nd upright portion 32 is energized, a reaction force or attractive force is similarly generated. When a current flows so that a reverse force is generated on the coil 8 wound in the 2 nd upright portion 32, the connecting portion 551 is deformed and the movable portion swings about the axis of the X axis.
The end surfaces of the front end portions of the 1 st upright portion 31 and the 2 nd upright portion 32 face the leaf springs 5 each formed of a soft magnetic material. Therefore, the magnetic force of the 1 st and 2 nd standing parts 31 and 32 as electromagnets can be improved. Further, since the opposed surface 96 of the magnet 9 is attached to the leaf spring 5, the magnetic force of the magnet 9 can be improved.
The above is the details of embodiment 1. The optical component tilting device 1 according to embodiment 1 includes a fixed portion, a movable portion having an optical component holding portion 7, a support portion for connecting and supporting the fixed portion and the movable portion, and a driving portion for driving the movable portion. Thus, the driving section includes an electromagnet formed by providing the soft magnetic member 3 inside the windings of the coil 8 and a magnet 9 that is in contact with the electromagnet Dan Duixiang. Therefore, a stronger magnetic force can be applied. As a result, according to embodiment 1, an optical component tilting device 1, a camera device 100, and an electronic apparatus that can ensure a sufficient driving force for a movable portion can be provided.
In addition, as the optical component tilting device 1 of embodiment 1, the support portion has the plate spring 5 formed of a soft magnetic material, the driving portion has the coil 8 and the magnet 9 having the facing surface 95 facing the coil 8, and the plate spring 5 is fixed to the facing surface 96 located on the opposite side of the facing surface 95 of the magnet 9. Therefore, the plate spring 5 has both the function of supporting the optical component holding portion 7 and the function of a yoke that increases the magnetic force of the magnet 9, and therefore, it becomes unnecessary to dispose a yoke as another component in the vicinity of the magnet 9. Therefore, according to embodiment 1, an optical component tilting device 1, a camera device 100, and an electronic apparatus can be provided that can ensure a sufficient driving force of a movable portion with fewer components.
In addition, as the optical member tilting device 1 of embodiment 1, the support portion has a leaf spring 5 for supporting the movable portion so as to be tiltable with respect to the fixed portion, the optical member has a structure including a light incident portion 16 and a light receiving portion, and the leaf spring 5 is located at a height between the light incident portion 16 and the light receiving portion. Therefore, according to embodiment 1, it is difficult to generate a deviation due to a difference in the posture of the thrust force when the movable portion swings. Therefore, according to embodiment 1, an optical component tilting device 1, a camera device 100, and an electronic apparatus, in which the maximum required thrust of the movable portion is small, can be provided.
< Embodiment 2>
Embodiment 2 of the present invention will be described. As shown in fig. 13, 14 and 15, the optical component tilting device 1A according to embodiment 2 of the present invention has a structure in which the coil 8, the soft magnetic member 3 and the magnet 9 face each other, which is different from that of embodiment 1.
In embodiment 2, the coil 8 and the magnet 9 are arranged so that the direction of the winding shaft of the coil 8 coincides with the normal direction of the facing surface 95 of the magnet 9. That is, the facing surface 95 of the magnet 9 in the 1 st mounting portion 61 faces the end surface of the distal end portion of the 1 st upright portion 31 of the soft magnetic member 3. The opposing face 96 is secured to the-Z side panel surface of the inner portion 54. The facing surface 95 is magnetized to an N-pole, for example, and the facing surface 96 is magnetized to an S-pole.
Similarly, the facing surface 95 of the magnet 9 in the 2 nd attachment portion 62 faces the end surface of the distal end portion of the 2 nd upright portion 32 of the soft magnetic member 3. The opposing surface 96 is fixed to the plate surface on the-Z side of the gimbal spring portion 55. The opposing surface 95 is magnetized to an N-pole, for example, and the opposing surface 96 is magnetized to an S-pole. The plate spring 5 is formed of a soft magnetic material, and thus the magnetic force of the facing surface 95 of the magnet 9 can be increased.
When a current flows through the coil 8 so that the end face of the tip end portion of the 1 st upright portion 31 or the 2 nd upright portion 32 becomes the N pole, a reaction force is generated in the opposing face 95 of the magnet 9, and the magnet 9 moves in the +z direction. When a current flows through the coil 8 so that the end face of the tip end portion of the 1 st upright portion 31 or the 2 nd upright portion 32 becomes an S-pole, an attractive force is generated on the opposing face 95 of the magnet 9, and the magnet 9 moves in the-Z direction. When a current flows so as to generate a reverse force in the coil 8 wound around the 1 st upright 31, the coupling portion 552 is deformed, and the movable portion swings around the axis of the Y axis. When a current flows so as to generate a reverse force in the coil 8 wound around the 2 nd upright portion 32, the connecting portion 551 is deformed, and the movable portion swings about the axis of the X axis.
In embodiment 1 and embodiment 2, the optical member may be a prism having an incident surface as a light incident portion, and a reflecting surface and an emitting surface as a light receiving portion. In this case, the leaf spring 5 may be further disposed at the same position as the center of gravity of the movable portion in the Z direction.
In embodiment 1 and embodiment 2, the opposing surface 95 of the magnet 9 may be magnetized to the S-pole, and the opposing surface 96 may be magnetized to the N-pole. The facing surface 95 and the opposite surface 96 may be magnetized to one magnetic pole, respectively. The coil 8 may be wound in the opposite direction to those of embodiment 1 and embodiment 2, that is, in the clockwise direction when viewed from the +z side.
The coil 8 is provided in the fixed portion, but may be provided in the movable portion, for example. In this case, the magnet 9 attached to the inner portion 54 of the leaf spring 5 is attached to the outer portion 56, for example. In addition, although the description has been made as the optical member tilting device in embodiment 1 and embodiment 2 above, for example, the leaf spring 5 is a spring having an inner portion, an outer portion, and a plurality of arm portions connecting the inner portion and the outer portion. Accordingly, the image sensor can be configured such that the fixed portion and the lens body are provided on the movable portion, and the tilting device can be configured such that the optical member can be linearly driven by the driving device. That is, the driving unit described in embodiment 1 and embodiment 2 may be applied to tilt (rotation) driving or linear driving.
[ Symbolic description ]
1. 1A, an optical component tilting movement device; 2. a housing; 3. a soft magnetic member; 5. a leaf spring; 7. an optical component holding section; 8. a coil; 9. a magnet; 15. AF, a motor; 16. a light incidence part; 17. a body; 18. a lens body; an image sensor 19; 20. a bottom plate portion; 25. a cover; 28. a lower side plate portion; 29. an upper side plate portion; 30. a bottom; 31. a1 st standing part; 32. a2 nd stand part; 54. an inner side portion; 55. a gimbal spring portion; 56. an outer side portion; 61. a1 st mounting part; 62. a2 nd mounting part; 95. a facing surface; 96. a facing surface; 100. a camera device; 101. a smart phone; 250. 290, 790, through holes; 540. a convex portion; 550. a bending portion; 551. 552, a connection portion; 560. a concave portion; 780. a bottom surface.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911325722.3A CN113014749B (en) | 2019-12-20 | 2019-12-20 | Optical component tilting movable device, camera device and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911325722.3A CN113014749B (en) | 2019-12-20 | 2019-12-20 | Optical component tilting movable device, camera device and electronic device |
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| Publication Number | Publication Date |
|---|---|
| CN113014749A CN113014749A (en) | 2021-06-22 |
| CN113014749B true CN113014749B (en) | 2024-11-26 |
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Citations (3)
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|---|---|---|---|---|
| CN102177465A (en) * | 2008-10-14 | 2011-09-07 | 日本电产三协株式会社 | Imaging optical device |
| CN108931875A (en) * | 2017-05-27 | 2018-12-04 | 新思考电机有限公司 | Bi-axial tilt head, photographic means, Optical devices and electronic equipment |
| CN210518583U (en) * | 2019-12-20 | 2020-05-12 | 新思考电机有限公司 | Optical component tilting device, camera device, and electronic apparatus |
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| JP2010096807A (en) * | 2008-10-14 | 2010-04-30 | Nidec Sankyo Corp | Optical device for photography |
| JP2013187514A (en) * | 2012-03-10 | 2013-09-19 | Nikon Corp | Surface position detection method and device, and exposure method and device |
| JP6172429B2 (en) * | 2012-07-11 | 2017-08-02 | ミツミ電機株式会社 | Lens drive device and camera-equipped mobile terminal |
| JP6026596B2 (en) * | 2015-06-08 | 2016-11-16 | シャープ株式会社 | The camera module |
| JP6811588B2 (en) * | 2016-11-10 | 2021-01-13 | 日本電産サンキョー株式会社 | Optical unit with runout correction function |
| JP6883468B2 (en) * | 2017-05-08 | 2021-06-09 | 日本電産サンキョー株式会社 | Optical unit with runout correction function |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102177465A (en) * | 2008-10-14 | 2011-09-07 | 日本电产三协株式会社 | Imaging optical device |
| CN108931875A (en) * | 2017-05-27 | 2018-12-04 | 新思考电机有限公司 | Bi-axial tilt head, photographic means, Optical devices and electronic equipment |
| CN210518583U (en) * | 2019-12-20 | 2020-05-12 | 新思考电机有限公司 | Optical component tilting device, camera device, and electronic apparatus |
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