CN111624728A - Reflection module and periscopic camera - Google Patents
Reflection module and periscopic camera Download PDFInfo
- Publication number
- CN111624728A CN111624728A CN202010740551.7A CN202010740551A CN111624728A CN 111624728 A CN111624728 A CN 111624728A CN 202010740551 A CN202010740551 A CN 202010740551A CN 111624728 A CN111624728 A CN 111624728A
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- base
- magnetic steel
- rotating shaft
- coil
- prism support
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
- G02B7/1805—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for prisms
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/303—Clamping coils, windings or parts thereof together
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
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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
- 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
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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
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
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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
- H04N23/60—Control of cameras or camera modules
- H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
- H04N23/682—Vibration or motion blur correction
- H04N23/685—Vibration or motion blur correction performed by mechanical compensation
- H04N23/687—Vibration or motion blur correction performed by mechanical compensation by shifting the lens or sensor position
Abstract
The invention provides a reflection module and a periscopic camera, the reflection module comprises a shell, a base, a prism bracket and a prism, rotate the first pivot of connecting shell and base, rotate the second pivot of connecting base and prism support, the drive base is around first pivot pivoted first drive assembly and drive prism support around second pivot pivoted second drive assembly, first drive assembly includes relative shell fixed first coil and the first magnet steel that is fixed in the base, reflection module is still including locating first coil and keeping away from first magnet steel one side and relative shell fixed magnetic conductive plate and locating one side that first coil was kept away from to first magnet steel and being fixed in the reply magnet steel of prism support, form the restoring force that the drive base gyration was reset between first magnet steel and the magnetic conductive plate, form the drive power that the drive prism support gyration was reset between first magnet steel and the reply magnet steel.
Description
Technical Field
The invention relates to the field of periscopic camera shooting, in particular to a reflection module and a periscopic camera adopting the same.
Background
The OIS (optical image stabilization) mainly functions to adjust the camera view to facilitate compensation for the user's hand shake. OIS is mainly achieved by "lens shift", i.e. when the lens is moved or the camera is tilted, the lens and image sensor will tilt together. The industry realizes better optical anti-shake's effect through the reflection module at present.
The reflection module in the related art comprises a base with an accommodating space, a base and a prism support arranged in the accommodating space, a prism fixed on the prism support, a first rotating shaft rotationally connected with the base and the base, a second rotating shaft rotationally connected with the base and the prism support, a first driving assembly for driving the base to rotate around the first rotating shaft, a second driving assembly for driving the prism support to rotate around the second rotating shaft, and a resetting assembly for resetting the base or the prism support, wherein the base can drive the prism support to rotate together when rotating around the first rotating shaft. However, such a reflective module needs to use more magnetic steels to realize the rotation and the reset of the base or the prism support, wherein magnetic interference can be generated between the magnetic steels for realizing the rotation and the reset of the base and the prism support and the magnetic steels for realizing the rotation and the reset of the base and the prism support.
Therefore, there is a need to provide a new reflective module to solve the above-mentioned problems.
Disclosure of Invention
The invention aims to provide a reflection module which can realize the rotation and the reset of a base and a prism support by using less magnetic steel, so that the influence of magnetic interference on the rotation and the reset of the base and the prism support can be reduced and even avoided.
In order to achieve the above object, the present invention provides a reflection module, which includes a housing having an accommodation space, a base and a prism support disposed in the housing, a prism fixed to the prism support, a first rotating shaft rotatably connected to the housing and the base, a second rotating shaft rotatably connected to the base and the prism support, a first driving assembly driving the base to rotate around the first rotating shaft, and a second driving assembly driving the prism support to rotate around the second rotating shaft, wherein an axis of the first rotating shaft is perpendicular to an axis of the second rotating shaft, the first driving assembly includes a first coil fixed to the housing and a first magnetic steel fixed to the base, the reflection module further includes a magnetic conductive plate disposed on a side of the first coil away from the first magnetic steel and fixed to the housing, and a restoring magnet disposed on a side of the first magnetic steel away from the first coil and fixed to the prism support The steel, the magnetic conduction board with form the drive between the first magnet steel the restoring force that the base gyration was reset, first magnet steel with form the drive between the restoring magnet steel the drive that the prism support gyration was reset.
Preferably, the restoring magnetic steel comprises first restoring magnetic steel and second restoring magnetic steel which are arranged at intervals along the axis direction of the first rotating shaft, a first repulsive force exists between the first magnetic steel and the first restoring magnetic steel, a second repulsive force opposite to the first repulsive force exists between the first magnetic steel and the second restoring magnetic steel, and the resultant force of the first repulsive force and the second repulsive force forms the driving force.
Preferably, the second driving assembly comprises a second coil fixed relative to the housing and a second magnetic steel fixed to the prism support.
Preferably, the first magnetic steel, the first recovery magnetic steel, the second recovery magnetic steel and the second magnetic steel are four-pole magnetic steels.
Preferably, a flexible circuit board electrically connected with the first coil and the second coil is fixedly arranged on the shell, a first opening and a second opening are formed in the shell, the flexible circuit board surrounds the shell and covers the first opening and the second opening, the first coil and the second coil are respectively located in the first opening and the second opening and fixed on the flexible circuit board, and the magnetic conduction plate is fixed on one side, far away from the shell, of the flexible circuit board.
Preferably, the flexible circuit board is kept away from still set firmly first reinforcing plate and second reinforcing plate on the one side of shell, it is equipped with the through-hole to run through on the first reinforcing plate, the magnetic conduction board is located in the through-hole, the second reinforcing plate with the second coil is followed the axis direction interval of first pivot sets up.
Preferably, the base is provided with first stopper respectively along the opposite both ends of the axis direction of second pivot, first stopper certainly the base is close to one side of first coil extends and forms, wherein, the base can wind first pivot is rotatory to first stopper with the shell contact.
Preferably, the rotation angle of the base is alpha, -2 DEG ≦ alpha ≦ 2 deg.
Preferably, the prism support is respectively extended from two opposite ends of the prism support along the axial direction of the first rotating shaft to form second limiting blocks, and the prism support can rotate around the second rotating shaft to the second limiting blocks to be contacted with the base.
Preferably, the rotation angle of the prism support is beta, wherein beta is more than or equal to-2 degrees and less than or equal to-2 degrees.
Preferably, the base is provided with a first receiving groove, one end of the first rotating shaft penetrates through the housing and is fixed with the housing, the other end of the first rotating shaft is inserted into the first receiving groove, the prism support is provided with a second receiving groove, one end of the second rotating shaft penetrates through the base and is fixed with the base, and the other end of the second rotating shaft is inserted into the second receiving groove.
Preferably, the inner walls of the first receiving groove and the second receiving groove are both concave spherical surfaces, and the ends of the first rotating shaft inserted into the first receiving groove and the ends of the second rotating shaft inserted into the second receiving groove are both convex spherical surfaces.
Preferably, the base is opposite to an avoiding port is further formed in the position of the second magnetic steel, and one end, far away from the prism support, of the second magnetic steel is inserted into the avoiding port.
The invention also provides a periscopic camera which comprises the reflection module.
Compared with the prior art, the reflection module provided by the invention has the advantages that the magnetic conductive plate fixed relative to the shell is arranged on one side of the first coil far away from the first magnetic steel, and the return magnetic steel fixed on the prism support is arranged on one side of the first magnetic steel far away from the first coil, so that the magnetic conductive plate and the first magnetic steel form a first magnetic spring, and the return magnetic steel and the first magnetic steel form a second magnetic spring. On one hand, the reflection module can reset the base and the prism support by using the magnetic steel for driving the base, so that the use of the magnetic steel can be reduced, the influence of magnetic interference on the rotation and the reset of the base and the prism support can be reduced and even avoided, meanwhile, the production cost can be reduced, and the structure of the reflection module can be simplified; on the other hand, the magnetic conduction plate is arranged on one side, far away from the first magnetic steel, of the first coil, so that the Lorentz force of the first coil can be improved through the magnetic conduction effect of the magnetic conduction plate, and the arm of force length of the restoring force is increased.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is an exploded view of a preferred embodiment of a reflective module of the present invention;
FIG. 2 is a schematic structural diagram of a base of the reflective module shown in FIG. 1;
FIG. 3 is a schematic structural diagram of a base of the reflective module shown in FIG. 1;
FIG. 4 is a schematic structural diagram of a prism holder in the reflection module shown in FIG. 1;
FIG. 5 is a perspective view of the reflection module shown in FIG. 1 after assembly;
FIG. 6 is a cross-sectional view of the reflective module of FIG. 5 taken along the direction A-A;
FIG. 7 is an enlarged view of a portion D of the reflective module shown in FIG. 6;
FIG. 8 is a cross-sectional view of the reflective module of FIG. 5 taken along the direction B-B;
FIG. 9 is an enlarged view of a portion E of the reflective module shown in FIG. 8;
FIG. 10 is a schematic view of the motion principle of the base of the present invention;
fig. 11 is a schematic view of the movement principle of the prism holder of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 11, the reflective module includes a housing 1 having an accommodating space 100, a base 2 and a prism support 3 disposed in the housing 1, a prism 4 fixed to the prism support 3, a first rotating shaft 5 rotatably connected to the housing 1 and the base 2, a second rotating shaft 6 rotatably connected to the base 2 and the prism support 3, a first driving component 7 driving the base 2 to rotate around the first rotating shaft 5, and a second driving component 8 driving the prism support 3 to rotate around the second rotating shaft 6, wherein an axis of the first rotating shaft 5 is perpendicular to an axis of the second rotating shaft 6.
As shown in fig. 6 and 8, the first rotating shafts 5 are respectively arranged on two opposite sides of the base 2, and the axes of the two first rotating shafts 5 are collinear; the two opposite sides of the prism support 3 are respectively provided with the second rotating shafts 6, and the axes of the two second rotating shafts 6 are collinear; the number of the second driving assemblies 8 is two, and the two second driving assemblies 8 are arranged at intervals along the axial direction of the first rotating shaft 5.
The first driving assembly 7 includes a first coil 71 fixed relative to the housing 1 and a first magnetic steel 73 fixed to the base 2. The first coil 71 and the first magnetic steel 73 are arranged at intervals along a direction which is perpendicular to the axis of the first rotating shaft 5 and the axis of the second rotating shaft 6 at the same time. (that is, the line of the vertical distance between the first coil 71 and the first magnetic steel 73 is perpendicular to the axis of the first rotating shaft 5 and the axis of the second rotating shaft 6, that is, the line of the vertical distance between the first coil 71 and the first magnetic steel 73, the axis of the first rotating shaft 5, and the axis of the second rotating shaft 6 are perpendicular to each other two by two). As shown in fig. 10, when the first coil 71 is energized, a first lorentz force F1 generated by the first coil 71 forms a first driving torque T1 to drive the base 2 to rotate around the first rotating shaft 5, and when the base 2 rotates, the prism support 3 is driven to rotate together, so that the prism 4 rotates around the first rotating shaft 5. Wherein T1= F1 × R1, R1 is the perpendicular distance of the first lorentz force F1 from the axis of the first rotating shaft 5 (i.e. R1 is the arm length of the first lorentz force F1).
The reflection module is still including locating first coil 71 is kept away from first magnet steel 73 one side and relative shell 1 fixed magnetic conductive plate a, magnetic conductive plate a with form the drive between the first magnet steel 73 restoring force F2 that base 2 gyration was reset (promptly magnetic conductive plate a with first magnet steel 73 constitutes first magnetic spring). Specifically, as shown in fig. 10, after the base 2 rotates around the first rotating shaft 5, the magnetic conductive plate a and the first magnetic steel 73 are relatively misaligned to generate the restoring force F2, and the restoring force F2 forms a first restoring torque T2 to drive the base 2 to rotate and return. Where T2= F2 × R2, R2 is the perpendicular distance of the restoring force F2 from the axis of the first rotating shaft 5 (i.e., R2 is the moment arm length of the restoring force F2).
It should be noted that, in the process of energizing the first coil 71 to drive the base 2 to rotate around the first rotating shaft 5, the first return torque T2 is formed due to the relative misalignment between the magnetic conductive plate a and the first magnetic steel 73, and at this time, the total torque T = T1-T2 of the base 2 rotating around the first rotating shaft 5; in a specific implementation, the magnitude of the restoring force F2 can be controlled by controlling the magnitude of the magnetic conductive plate a, so that the magnitude of the first restoring torque T2 can be controlled (the larger the first restoring torque T2, the faster the response of the pedestal 2 to the return reset, and the shorter the return reset time; and vice versa, the slower the response of the pedestal 2 to the return reset, and the longer the return reset time).
The second driving assembly 8 comprises a second coil 81 fixed relative to the housing 1 and a second magnetic steel 83 fixed to the prism support 3. The second coil 81 and the second magnetic steel 83 are arranged at intervals along the axial direction of the first rotating shaft 5. As shown in fig. 11, when the second coil 81 is energized, the second lorentz force f1 generated by the second coil 81 forms a second driving torque t1 to drive the prism support 3 to rotate around the second rotating shaft 6, so as to realize the rotation of the prism 4 around the second rotating shaft 6. Wherein t1= f1 × r1, and r1 is the perpendicular distance between the second lorentz force f1 and the axis of the second rotating shaft 6 (i.e., r1 is the arm length of the second lorentz force f 1). In this embodiment, two of the second coils 81 are connected in series.
The reflection module is still including locating first magnet steel 73 is kept away from one side of first coil 71 and is fixed in prism support 3's reply magnet steel b, first magnet steel 73 with reply and form the drive between the magnet steel b prism support 3 gyration drive power f2 that resets (promptly reply magnet steel b with first magnet steel 73 constitutes second magnetic spring). Specifically, as shown in fig. 11, after the prism support 3 rotates around the second rotation shaft 6, the restoring magnetic steel b and the first magnetic steel 73 generate the driving force f2 due to relative misalignment, and the driving force f2 forms a second restoring torque t2 to drive the prism support 3 to rotate and reset. Wherein t2= f2 r2, and r2 is the perpendicular distance between the driving force f2 and the axis of the second rotating shaft 6 (i.e. r2 is the arm length of the driving force f 2).
It should be noted that, in the process of energizing the second coil 81 to drive the prism support 3 to rotate around the second rotating shaft 6, the second restoring torque t2 is formed due to the relative misalignment between the restoring magnetic steel b and the first magnetic steel 73, and at this time, the total torque t =2 t 1-t 2 of the prism support 3 rotating around the second rotating shaft 6.
It is understood that in other embodiments, only one of the second driving assemblies 8 may be provided, and accordingly, the total torque t = t 1-t 2 of the prism support 3 rotating around the second rotating shaft 6 is provided during the process of energizing the second coil 81 to drive the prism support 3 to rotate around the second rotating shaft 6.
It should be noted that, because the axis of the first rotating shaft 5, the first coil 71, the first magnetic steel 73, the magnetic conductive plate a and the return magnetic steel b have a certain distance, the axis of the second rotating shaft 6, the second coil 81 and the second magnetic steel 83 have a certain distance, so as to drive the base 2 to rotate around the first rotating shaft 5, the first drive torque T1, the first return torque T2, the second drive torque T1, the second drive torque T2, the second return torque T2, the second drive torque T3526 and the second return torque T2 are all larger.
In this embodiment, the restoring magnetic steel b includes a first restoring magnetic steel 1b and a second restoring magnetic steel 2b arranged along the axial direction of the first rotating shaft 5 at an interval, a first repulsive force exists between the first magnetic steel 73 and the first restoring magnetic steel 1b, a second repulsive force opposite to the first repulsive force exists between the first magnetic steel 73 and the second restoring magnetic steel 2b, when the prism bracket 3 is in a balanced state (i.e., when the prism bracket 3 does not rotate around the second rotating shaft 6), the first repulsive force and the second repulsive force are offset, and when the prism bracket 3 rotates around the second rotating shaft 6, the resultant force of the first repulsive force and the second repulsive force forms the driving force f 2.
In an embodiment, the magnitude of the second restoring torque t2 may be controlled by controlling the magnitude of the driving force f2 (the larger the second restoring torque t2, the faster the response of the prism holder 3 to the rotational reset, and the shorter the rotational reset time, and conversely, the slower the response of the prism holder 3 to the rotational reset, and the longer the rotational reset time). For example, the magnitude of the driving force f2 may be controlled by three factors:
the sizes of the first return magnetic steel 1b and the second return magnetic steel 2b are the same;
secondly, the types of the first return magnetic steel 1b and the second return magnetic steel 2b (the magnetic field strengths of the magnetic steels with the same size and different types are different);
thirdly, the distance between the first return magnetic steel 1b and the second return magnetic steel 2b along the axial direction of the first rotating shaft 5;
fourthly, along the direction from the first magnetic steel 73 to the first coil 71, the first return magnetic steel 1b and the second return magnetic steel 2b are spaced from the first magnetic steel 73.
In this embodiment, the first magnetic steel 73, the first restoring magnetic steel 1b, the second restoring magnetic steel 2b, and the second magnetic steel 83 are all four-pole magnetic steels.
The prism 4 has an incident surface 41, a reflecting surface 43, and an exit surface 45, and light enters the prism 4 from the incident surface 41, is reflected by the reflecting surface 43, and exits from the exit surface 45 after being reflected by the reflecting surface 43.
As shown in fig. 1 and 7, the housing 1 includes a base 11, an upper cover plate 13 covering the base 11 and disposed opposite to the exit surface 45 at an interval, and a lower cover plate 15 covering the base 11 and disposed on a side away from the upper cover plate 13, the upper cover plate 13 is provided with a light exit 131 through a position facing the exit surface 45, and the base 11 is provided with a light entrance 111 on a side facing the incident surface 41.
Wherein, the light beam reaches the incident surface 41 through the light inlet 111, and the light beam emitted from the exit surface 45 exits the reflection module through the light outlet 131; first pivot 5 rotates to be connected base 11 with base 2, first coil 71 is fixed in relatively base 11 keeps away from one side of income light mouth 111, second coil 81 is fixed in relatively base 11 is followed the both sides of the axis direction of first pivot 5.
The housing 1 is fixedly provided with a flexible circuit board 10 electrically connected with the first coil 71 and the second coil 81.
The first opening 1A and the second opening 1B are opened on the base 11.
As shown in fig. 6, a first sensor 75 electrically connected to the flexible circuit board 10 is disposed in the first coil 71, and the first sensor 75 is used for measuring the rotation angle of the base 2 around the first rotation axis 5.
In this embodiment, a first reinforcing plate 20 and a second reinforcing plate 30 are further fixedly disposed on one side of the flexible circuit board 10 away from the housing 1, a through hole 201 is formed in the first reinforcing plate 20 in a penetrating manner, the magnetic conducting plate a is located in the through hole 201, and the second reinforcing plate 30 is disposed at an interval with the second coil 81 along the axial direction of the first rotating shaft 5. Through setting up first reinforcing plate 20 with second reinforcing plate 30 can strengthen the rigidity of flexible circuit board 10 is in order to avoid flexible circuit board 10 is corresponding first coil 71 with the problem that deformation appears when second coil 81 is in coil and magnet steel interact, simultaneously, through set up on the first reinforcing plate 20 and accept magnetic conduction board a through-hole 201 can avoid increasing the reflection module is followed first coil 71 extremely the ascending thickness of first magnet steel 73 side.
It is understood that, in other embodiments, the magnetic conductive plate a may also be disposed between the first coil 71 and the flexible circuit board 10, and the first coil 71 is fixed to the flexible circuit board 10 through the magnetic conductive plate a.
In this embodiment, the two opposite ends of the base 2 along the axial direction of the second rotating shaft 6 are respectively provided with a first limiting block 21, the first limiting block 21 is formed by extending from one side of the base 2 close to the first coil 71, wherein the base 2 can rotate around the first rotating shaft 5 until the first limiting block 21 contacts with the housing 1. That is, in the rotation direction of the base 2 around the first rotation shaft 5, the first limit block 21 is limited by colliding with the housing 1, and specifically, the first limit block 21 is limited by colliding with the upper cover 13 and the lower cover 15 of the housing 1.
In the present embodiment, the rotation angle of the base 2 is α, -2 ° ≦ α ≦ 2 °. That is, the maximum stroke of the rotation of the base 2 about the first rotation axis 5 is 2 °.
In this embodiment, the prism support 3 may rotate around the second rotating shaft 6 until the second stopper 31 contacts the base 2, and the second stoppers 31 are respectively extended from opposite ends of the prism support 3 in the axial direction of the first rotating shaft 5. That is, in the rotation direction of the prism support 3 around the second rotation shaft 6, the second stopper 31 is stopped by colliding with the base 2.
In the embodiment, the rotation angle of the prism support is beta, wherein beta is more than or equal to-2 degrees and less than or equal to-2 degrees. That is, the maximum stroke of the rotation of the prism holder 3 about the second rotation axis 6 is 2 °.
The prism support 3 is provided with a first receiving groove 23 on the base 2, one end of the first rotating shaft 5 penetrates through the housing 1 and is fixed with the housing 1, the other end of the first rotating shaft is inserted into the first receiving groove 23, a second receiving groove 33 is arranged on the prism support 3, one end of the second rotating shaft 6 penetrates through the base 2 and is fixed with the base 2, and the other end of the second rotating shaft is inserted into the second receiving groove 33. One end of the first rotating shaft 5 passes through the base 11 of the housing 1 and is fixed with the base 11.
It can be understood that, in order to enable one end of the first rotating shaft 5 to pass through the base 11 and one end of the second rotating shaft 6 to pass through the base 2, the base 11 is provided with a first through hole 1C for the first rotating shaft 5 to pass through, and the base 2 is provided with a second through hole 25 for the second rotating shaft 6 to pass through.
In the present embodiment, the inner walls of the first housing groove 23 and the second housing groove 33 are both concave spherical surfaces, and the ends of the first rotating shaft 5 inserted into the first housing groove 23 and the ends of the second rotating shaft 6 inserted into the second housing groove 33 are both convex spherical surfaces. This can reduce friction between the inner wall of the first receiving groove 23 and the first rotation shaft 5 when the base 2 rotates about the first rotation shaft 5, and friction between the inner wall of the second receiving groove 33 and the second rotation shaft 6 when the prism support 3 rotates about the second rotation shaft 6.
In this embodiment, the base 2 is opposite to the position of the second magnetic steel 83, and an avoiding opening 27 is further formed in the position, where the second magnetic steel 83 is far away from the prism support 3, of which one end is inserted into the avoiding opening 27. Can reduce like this second magnet steel 83 with interval between the second coil 81, thereby be in the same and the second coil 81 circular telegram back the magnetic field intensity that produces under the same circumstances of second magnet steel 83's magnetic field intensity, through reducing second magnet steel 83 with interval between the second coil 81 can increase second magnet steel 83 with effort (can improve second lorentz force f 1) between the second coil 81, be favorable to reducing the overall size of reflection module moreover.
As shown in fig. 6, a second sensor 85 electrically connected to the flexible circuit board 10 is disposed in the second coil 81, and the second sensor 85 is used for measuring the rotation angle of the prism support 3 around the second rotation axis 6.
The invention also provides a periscopic camera which comprises the reflection module.
Compared with the prior art, in the reflection module of the present invention, the magnetic conductive plate a fixed to the housing 1 is disposed on the side of the first coil 71 away from the first magnetic steel 73, and the return magnetic steel b fixed to the prism support 3 is disposed on the side of the first magnetic steel 73 away from the first coil 71, so that the magnetic conductive plate a and the first magnetic steel 73 form a first magnetic spring, and the return magnetic steel b and the first magnetic steel 73 form a second magnetic spring, and when the magnetic conductive plate a, the first magnetic steel 73, the return magnetic steel b and the first magnetic steel 73 are relatively dislocated, the restoring forces generated can respectively drive the base 2 and the prism support 3 to rotate and return. On one hand, the reflection module can reset the base 2 and the prism support 3 by using the magnetic steel for driving the base 2, so that the use of the magnetic steel can be reduced, the influence of magnetic interference on the rotation and reset of the base and the prism support can be reduced and even avoided, and meanwhile, the production cost can be reduced and the structure of the reflection module can be simplified; on the other hand, the magnetic conductive plate a is disposed on the side of the first coil 71 away from the first magnetic steel 73, so that not only the lorentz force of the first coil 71 can be improved through the magnetic conductive action of the magnetic conductive plate a, but also the arm length of the restoring force F2 is increased.
While the foregoing is directed to embodiments of the present invention, it will be understood by those skilled in the art that various changes may be made without departing from the spirit and scope of the invention.
Claims (14)
1. A reflection module comprises a shell with an accommodating space, a base and a prism support arranged in the shell, a prism fixed on the prism support, a first rotating shaft connected with the shell and the base in a rotating manner, a second rotating shaft connected with the base and the prism support in a rotating manner, a first driving component for driving the base to rotate around the first rotating shaft and a second driving component for driving the prism support to rotate around the second rotating shaft, wherein the axis of the first rotating shaft is vertical to the axis of the second rotating shaft, the first driving component comprises a first coil fixed relative to the shell and a first magnetic steel fixed on the base, the reflection module is characterized in that the reflection module also comprises a magnetic conductive plate arranged on one side of the first magnetic steel and fixed on one side of the first coil and a return magnetic steel fixed on the prism support, the magnetic conduction plate and the first magnetic steel form a restoring force for driving the base to rotate and reset, and a driving force for driving the prism support to rotate and reset is formed between the first magnetic steel and the restoring magnetic steel.
2. The reflection module according to claim 1, wherein the restoring magnetic steel includes a first restoring magnetic steel and a second restoring magnetic steel disposed at an interval along an axial direction of the first rotating shaft, a first repulsive force exists between the first magnetic steel and the first restoring magnetic steel, a second repulsive force opposite to the first repulsive force exists between the first magnetic steel and the second restoring magnetic steel, and a resultant force of the first repulsive force and the second repulsive force forms the driving force.
3. The reflective module of claim 2, wherein the second driving assembly comprises a second coil fixed relative to the housing and a second magnetic steel fixed to the prism support.
4. The reflectron module of claim 3, in which the first magnetic steel, the first return magnetic steel, the second return magnetic steel, and the second magnetic steel are four-pole magnetic steels.
5. The reflection module according to claim 3, wherein a flexible circuit board electrically connected to the first coil and the second coil is fixedly disposed on the housing, the housing has a first opening and a second opening, the flexible circuit board is disposed around the housing and covers the first opening and the second opening, the first coil and the second coil are respectively disposed in the first opening and the second opening and fixed to the flexible circuit board, and the magnetic conductive plate is fixed to a side of the flexible circuit board away from the housing.
6. The reflection module according to claim 5, wherein a first reinforcing plate and a second reinforcing plate are further fixedly disposed on a side of the flexible circuit board away from the housing, a through hole is formed in the first reinforcing plate, the magnetic conductive plate is disposed in the through hole, and the second reinforcing plate and the second coil are disposed at an interval along an axial direction of the first rotating shaft.
7. The reflective module of claim 1, wherein a first stop block is respectively disposed at two opposite ends of the base along the axial direction of the second rotating shaft, the first stop blocks are formed by extending from a side of the base close to the first coil, and the base is rotatable around the first rotating shaft until the first stop blocks contact with the housing.
8. The reflective module of claim 7, wherein the rotation angle of the base is α, -2 ° ≦ α ≦ 2 °.
9. The reflection module according to claim 1, wherein the prism support is rotatable around the second rotation axis until the second stopper contacts the base.
10. The reflective module of claim 9, wherein the prism support is rotated by an angle β, wherein β is-2 ° or less and 2 ° or less.
11. The reflection module according to claim 1, wherein the base has a first receiving slot, one end of the first shaft passes through the housing and is fixed to the housing, the other end of the first shaft is inserted into the first receiving slot, the prism holder has a second receiving slot, one end of the second shaft passes through the base and is fixed to the base, and the other end of the second shaft is inserted into the second receiving slot.
12. The reflective module of claim 11, wherein the inner walls of the first receiving cavity and the second receiving cavity are both concave spherical surfaces, and the ends of the first rotating shaft inserted into the first receiving cavity and the ends of the second rotating shaft inserted into the second receiving cavity are both convex spherical surfaces.
13. The reflection module according to claim 3, wherein an avoidance opening is further formed in a position of the base opposite to the second magnetic steel, and one end of the second magnetic steel, which is far away from the prism support, is inserted into the avoidance opening.
14. A periscopic camera comprising a reflective module according to any one of claims 1-13.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010740551.7A CN111624728B (en) | 2020-07-29 | 2020-07-29 | Reflection module and periscopic camera |
| PCT/CN2020/110647 WO2022021514A1 (en) | 2020-07-29 | 2020-08-21 | Reflection module and periscopic camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010740551.7A CN111624728B (en) | 2020-07-29 | 2020-07-29 | Reflection module and periscopic camera |
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| CN111624728A true CN111624728A (en) | 2020-09-04 |
| CN111624728B CN111624728B (en) | 2020-10-27 |
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| CN202010740551.7A Active CN111624728B (en) | 2020-07-29 | 2020-07-29 | Reflection module and periscopic camera |
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| CN (1) | CN111624728B (en) |
| WO (1) | WO2022021514A1 (en) |
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| WO2022062136A1 (en) * | 2020-09-28 | 2022-03-31 | 诚瑞光学(深圳)有限公司 | Electronic device, optical acquisition module and reflection module |
| WO2022110501A1 (en) * | 2020-11-24 | 2022-06-02 | 诚瑞光学(深圳)有限公司 | Lens prism module |
| WO2022110500A1 (en) * | 2020-11-24 | 2022-06-02 | 诚瑞光学(深圳)有限公司 | Lens prism module |
| WO2024045626A1 (en) * | 2022-08-30 | 2024-03-07 | 荣耀终端有限公司 | Lens bearing device, camera module and electronic device |
| WO2024045624A1 (en) * | 2022-08-30 | 2024-03-07 | 荣耀终端有限公司 | Lens bearing apparatus, camera module, and electronic device |
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Also Published As
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| CN111624728B (en) | 2020-10-27 |
| WO2022021514A1 (en) | 2022-02-03 |
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Address after: 213000 Xinwei 1st Road, Changzhou Comprehensive Bonded Zone, Jiangsu Province Patentee after: Chengrui optics (Changzhou) Co., Ltd Address before: 213000 Xinwei 1st Road, Changzhou Comprehensive Bonded Zone, Jiangsu Province Patentee before: Ruisheng Communication Technology (Changzhou) Co.,Ltd. |