Optical vibration isolation device and optical equipment

Abstract

To make an optical vibration isolation device and an optical device compact. [Solution] The optical vibration-isolating device includes a housing, a focusing structure, a resilient connecting structure, a drive structure, and a plurality of vibration-isolating balls. The focusing structure is disposed within the housing, and the resilient connecting structure is connected between the focusing structure and the housing, and can generate a tendency for the focusing structure to move toward a first side of the housing. The vibration-isolating balls are disposed between the focusing structure and the first side, and are sandwiched between the focusing structure and the first side of the housing by the tendency for movement. The drive structure is disposed between the focusing structure and the housing, and moves the vibration-isolating balls while rolling, so that the focusing structure is guided by the vibration-isolating balls to move along a direction perpendicular to the optical axis.

Description

[Technical Field]

[0001] The present invention relates to the technical field of lenses, and in particular to optical vibration isolation devices and optical instruments. [Background technology]

[0002] Imaging devices are widely used in portable electronic devices such as cameras, mobile phones, tablets, and laptops. The lens modules of imaging devices generally have autofocus (AF) and optical image stabilization (OIS) functions. To achieve the optical image stabilization function, the lens must be moved perpendicular to the optical axis of the lens using an image stabilization device.

[0003] Conventional vibration isolation devices typically include a base, a focusing structure, and a driving structure, and generally require four elastic pieces, which connect the four corners of the focusing structure to the base, respectively, and the driving structure can provide an ampere force to drive the focusing structure to move along a direction perpendicular to the optical axis. However, in the prior art, because the focusing structure and the base are connected only by four elastic pieces, when an ampere force is applied to drive the focusing structure, the focusing structure is likely to tilt, and accurate vibration isolation is not possible.

[0004] To address the drawbacks of the above-mentioned prior art, in the related art, an anti-vibration assembly is provided between the focusing structure and the base, and the anti-vibration assembly serves to support the focusing structure, making it less likely to tilt when the focusing structure moves. However, the anti-vibration structure in the related art has a relatively complicated structure. Although adding the anti-vibration structure can prevent the focusing structure from tilting, it also increases the volume of the anti-vibration device, increasing the space occupied by the anti-vibration device and increasing the manufacturing cost of the anti-vibration device. Summary of the Invention [Problem to be solved by the invention]

[0005] Based on this, there is a need to provide an optical vibration isolation device and optical equipment with a compact structure to address the above problems. [Means for solving the problem]

[0006] An embodiment of the present invention provides an optical vibration isolation device to which a lens having an optical axis can be attached, the optical vibration isolation device comprising: a housing having an installation space; a focusing structure disposed in the mounting space; an elastic connection structure connected between the focusing structure and the housing, and configured to cause the focusing structure to tend to move toward a first side of the housing along the optical axis in a free state; a plurality of vibration-damping balls disposed between the focusing structure and the first side of the housing, the vibration-damping balls being sandwiched between the focusing structure and the first side of the housing by the movement tendency and capable of rolling in a plane perpendicular to the optical axis by the action of an external force; The focus structure includes a driving structure provided on the housing and configured to generate a driving force between the focus structure and the housing to move the focus structure and roll the vibration-damping balls, thereby moving the focus structure along a direction perpendicular to the optical axis while being guided by the vibration-damping balls.

[0007] In some embodiments, the housing includes an upper cover and a base that are removably connected, the mounting space is enclosed between the upper cover and the base, the focusing structure is connected to the base via an elastic piece, there is a gap between the focusing structure and the base, and the multiple vibration-damping balls are located between the focusing structure and the base.

[0008] In some embodiments, one end of the focusing structure facing the base has a plurality of first support stands installed at intervals, one end of the first support stands facing the base has a first rolling groove, one end of the base facing the focusing structure has a second support stand at a position corresponding to the first support stand, and one end of the base facing the focusing structure has a second rolling groove at a position corresponding to the first rolling groove of the second support stand so that a position control space is formed between the first support stand and the second support stand, and the vibration-damping ball is located within the position control space.

[0009] In some embodiments, the drive structure includes a plurality of shared magnetic steels arranged within the focus structure, a main plate is provided on the base, and an anti-vibration coil is connected to the main plate at a position corresponding to the shared magnetic steels.

[0010] In some embodiments, the focus structure includes a holder and a lens barrel, the holder has a through hole, the lens barrel is movably installed within the through hole along the optical axis direction, the elastic piece includes an upper elastic piece and a lower elastic piece, the upper elastic piece and the lower elastic piece are respectively located on opposite sides of the focus structure in the optical axis direction, a portion of the structure of the upper elastic piece can be connected to the base, the holder and the lens barrel, respectively, and the lower elastic piece can be connected to the holder and the lens barrel, respectively.

[0011] In some embodiments, the upper elastic piece includes a first upper connection portion, a second upper connection portion, and a third upper connection portion, the first upper connection portion and the second upper connection portion are connected by a first bent portion, the second upper connection portion and the third upper connection portion are connected by a second bent portion, a first connecting nail is provided on the holder, a second connecting nail is provided on the lens barrel, the second upper connection portion and the third upper connection portion are connected to the first connecting nail and the second connecting nail, respectively, and the first upper connection portion is connected to the base.

[0012] In some embodiments, the lower elastic piece includes a first lower connection portion and a second lower connection portion, the first lower connection portion and the second lower connection portion are connected by a second bent portion, the first lower connection portion is fixedly connected to the holder, and the second lower connection portion is fixedly connected to the lens barrel.

[0013] In some embodiments, the elastic pieces include four upper elastic pieces and four lower elastic pieces, and the four upper elastic pieces are arranged in pairs, and two upper elastic pieces in the same pair can be connected by a connecting bar to form a single whole.

[0014] Some embodiments further include a damping material disposed between the holder and the lens barrel.

[0015] In some embodiments, the shared magnetic steel is installed on the inner wall of the holder surrounding the lens barrel, the drive structure includes a drive coil installed on the lens barrel opposite the shared magnetic steel, a main plate is installed on the base, and the upper elastic piece can be connected to the main plate and the drive coil, respectively.

[0016] In some embodiments, a metal member electrically connected to the main plate is embedded inside the base, and the upper elastic piece is welded to the metal member.

[0017] An embodiment of the present invention further provides an optical apparatus including the optical vibration isolation device described above. [Effects of the Invention]

[0018] The embodiments of the present invention have the following beneficial effects. According to the optical vibration-isolating device and optical apparatus of the above embodiments, a resilient connecting structure can be provided to connect the focusing structure to the housing, and a plurality of vibration-isolating balls can be provided between the focusing structure and the first side of the housing. The resilient connecting structure induces a tendency for the focusing structure to move along the optical axis toward the first side of the housing. This tendency allows the vibration-isolating balls to be sandwiched between the focusing structure and the housing, and the focusing structure to abut against the vibration-isolating balls. When the driving structure can drive the focusing structure to move relative to the housing, the vibration-isolating balls can be caused to roll in a plane perpendicular to the optical axis by an external force, so that the focusing structure can be guided by the vibration-isolating balls to move in a direction perpendicular to the optical axis. The cooperation of the resilient connecting structure and the vibration-isolating balls can restrict the movement direction of the focusing structure, making it less likely to move along a path other than a direction perpendicular to the optical axis when the focusing structure moves. This ensures that the focusing structure is less likely to tilt when moving, further ensuring vibration isolation effects. Furthermore, by simply providing an anti-vibration ball between the focus structure and the housing, and combining it with an elastic connection structure, tilting during the movement of the focus structure can be avoided, resulting in a simple structure, making the structure of the entire anti-vibration device compact, and reducing production costs. [Brief explanation of the drawings]

[0019] In order to more clearly explain the technical solutions in the embodiments of the present invention or the existing technology, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the existing technology. However, the drawings in the following description are only some embodiments of the present invention, and it is obvious that those skilled in the art in the technical field to which the present invention belongs can obtain other drawings based on these drawings without requiring any creative work. [Figure 1] 1 is a cross-sectional view of an optical vibration isolation device according to the present invention. [Figure 2] FIG. 1 is an exploded perspective view of an optical vibration isolation device according to the present invention. [Figure 3] FIG. 10 is another exploded perspective view of the optical vibration isolation device according to the present invention. [Figure 4] 1 is a schematic diagram showing the configuration of an optical image stabilization device according to the present invention. [Figure 5] FIG. 2 is a schematic diagram showing the configuration of a base according to the present invention. [Figure 6] FIG. 2 is an exploded perspective view of the base according to the present invention. [Figure 7] 5A and 5B are schematic diagrams showing the configuration of an upper elastic piece according to the present invention. [Figure 8] 5A and 5B are schematic diagrams showing the configuration of a lower elastic piece according to the present invention. [Figure 9] FIG. 3 is an enlarged schematic view of A shown in FIG. 2. [Figure 10] FIG. 3 is an enlarged schematic view of B shown in FIG. 2. [Figure 11] 1 is a schematic diagram showing a configuration of a connection block according to the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0020] To facilitate an understanding of the present invention, the present invention will now be described more fully hereinafter with reference to the associated drawings, in which preferred embodiments of the invention are shown. However, the present invention may be embodied in many different forms and is not limited to the embodiments set forth herein. Rather, the purpose of providing these embodiments is to provide a more complete understanding of the present disclosure.

[0021] It should be noted that when an element is said to be "fixed" to another element, it may be directly connected to the other element, or there may be intervening elements. When an element is said to be "connected" to another element, it may be directly connected to the other element, or there may also be intervening elements. The terms "vertical," "horizontal," "left," "right," and similar terms used herein are for purposes of description only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. In the present invention, the terms used in the specification of the present invention are used only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used herein, the term "and / or" includes any or all combinations of one or more associated listed items.

[0023] In one aspect, the present invention provides an optical vibration isolation device that can be mounted on a mobile device such as a tablet computer or a mobile phone, and is used to mount a lens having an optical axis, and has autofocus and optical vibration isolation functions. In one embodiment, as shown in Figures 1 and 2, the optical vibration isolation device includes a housing 1, a focusing structure 2, an elastic connecting structure, a driving structure 4, and a plurality of vibration isolation balls 30.

[0024] The housing 1 has an installation space, and provides an installation environment, and other structures of the optical vibration isolation device can be installed in the housing 1.

[0025] The focusing structure 2 is installed in the mounting space and is movable relative to the housing 1, including, but not limited to, movement in the direction of the optical axis (i.e., the optical axis of the lens when the lens is mounted, and the dashed line in FIG. 1 indicates the optical axis) and movement perpendicular to the optical axis. The elastic connecting structure is connected between the focusing structure 2 and the housing 1 and is configured to cause the focusing structure 2 to tend to move along the optical axis toward a first side of the housing 1 in a free state. The first side of the housing 1 is one side in the optical axis direction, and when the focusing structure 2 moves along the optical axis, it can abut against the first side or form a certain gap with the first side.

[0026] The plurality of vibration-damping balls 30 are disposed between the focusing structure 2 and the first side of the housing 1 and tend to move between the focusing structure 2 and the first side of the housing 1, i.e., the focusing structure 2 tends to move and abut against the plurality of vibration-damping balls 30. The vibration-damping balls 30 can be rolled in a plane perpendicular to the optical axis by an external force.

[0027] The driving structure 4 is provided on the focusing structure 2 and the housing 1, and is used to generate a driving force between the focusing structure 2 and the housing 1, thereby moving the focusing structure 2 and rolling the vibration-damping balls 30, and moving the focusing structure 2 along a direction perpendicular to the optical axis while being guided by the vibration-damping balls 30.

[0028] The focusing structure 2 and the housing 1 are connected by providing an elastic connecting structure, and a plurality of anti-vibration balls 30 are provided between the focusing structure 2 and the first side of the housing 1. The elastic connecting structure causes the focusing structure 2 to tend to move along the optical axis toward the first side of the housing 1. This tendency allows the anti-vibration balls 30 to be sandwiched between the focusing structure 2 and the housing 1, and the focusing structure 2 to abut against the anti-vibration balls 30. When the driving structure 4 can drive the focusing structure 2 to move relative to the housing 1, the anti-vibration balls 30 can be rolled in a plane perpendicular to the optical axis by an external force, so that the focusing structure 2 can move in a direction perpendicular to the optical axis under the guidance of the anti-vibration balls 30. The cooperation between the elastic connecting structure and the anti-vibration balls 30 can restrict the movement direction of the focusing structure 2, making it difficult for the focusing structure 2 to move along a path other than the direction perpendicular to the optical axis. This ensures that the focusing structure 2 is less likely to tilt during movement, further ensuring the anti-vibration effect. Furthermore, by simply providing an anti-vibration ball 30 between the focus structure 2 and the housing 1, and combining it with an elastic connection structure, tilting during the movement of the focus structure 2 can be avoided, resulting in a simple structure, making the structure of the entire anti-vibration device compact, and reducing production costs.

[0029] In one embodiment, as shown in Figures 1 and 2, the housing 1 is generally rectangular and includes an upper cover 11 and a base 12 that are removably connected, and the upper cover 11 and the base 12 can be connected by a connection method such as snap-fit, engagement, or screws, but is not limited thereto.

[0030] Here, the upper cover 11 includes a top plate 111 and four side plates 112 arranged to be surrounded by the edge of the top plate 111, the four side plates 112 being located on the same side of the top plate 111, and the base 12 being connected to one end of the four side plates 112 remote from the top plate 111. An installation space is surrounded by the top plate 111, the four side plates 112, and the base 12. Note that holes are provided at corresponding positions on both the top plate 111 and the base 12, and a lens can be provided by passing through two of the holes.

[0031] The focusing structure 2 is connected to the base 12 via elastic pieces, with a gap between the focusing structure 2 and the base 12, and a certain gap between the focusing structure 2 and the top plate 111 and the side plate 112. The elastic pieces have elastic deformation ability, and are driven by the driving structure 4 to move the focusing structure 2 in a predetermined direction, and after the driving force is canceled, the elasticity of the elastic pieces allows the focusing structure 2 to return to its original position. A plurality of vibration-damping balls 30 are positioned between the focusing structure 2 and the base 12 and support the focusing structure 2 on the base 12. The elastic connecting structure may be a separate structure connecting the focusing structure 2 and the base 12, or may be a structure integrally formed with the elastic pieces, i.e., the elastic connecting structure may be part of the elastic pieces, and in this way, the elastic pieces can press the focusing structure 2 against the vibration-damping balls 30.

[0032] In one specific embodiment, as shown in Figures 1 to 5, one end of the focusing structure 2 facing the base 12 has a plurality of first support stands 213 installed at intervals, and the end face of the first support stands 213 facing the base 12 is installed not beyond or slightly beyond the end face corresponding to the focusing structure 2, and a first rolling groove 2131 is provided at one end of the first support stands 213 facing the base 12.

[0033] At one end of the base 12 facing the focus structure 2, a second support base 123 is provided at a position corresponding to the first support base 213, and a second rolling groove 1231 is provided at a position corresponding to the first rolling groove 2131 of the second support base 123. There is also a gap between the first support base 213 and the corresponding second support base 123, and a position control space 50 is formed between the first support base 213 and the second support base 123 by the first rolling groove 2131 and the second rolling groove 1231, and the vibration-damping ball 30 is provided within this position control space 50.

[0034] The diameter of the vibration-damping ball 30 is greater than the sum of the depths of the first rolling groove 2131 and the second rolling groove 1231, but smaller than the widths of the first rolling groove 2131 and the second rolling groove 1231. Here, the depth of the rolling groove is the dimension along the direction parallel to the optical axis, and the width of the rolling groove is the dimension along the direction perpendicular to the optical axis. The focusing structure 2 and the base 12 are provided with a first support base 213 and a second support base 123, respectively, and the first support base 213 and the second support base 123 are provided with a first rolling groove 2131 and a second rolling groove 1231, respectively, so that the vibration-damping ball 30 can be restricted within the position restriction space 50 formed by the first rolling groove 2131 and the second rolling groove 1231.

[0035] In addition, a bottom block may be provided at the bottom of both the first rolling groove 2131 and the second rolling groove 1231, and the surface of the bottom block is smooth so that the end face of the vibration-damping ball 30 can abut against the bottom block.

[0036] 4 to 8, in one specific embodiment, the focusing structure 2 includes a holder 21 and a lens barrel 22, the holder 21 has an overall rectangular outer shape, and has a through-hole 214 inside the holder 21, which is rectangular in shape, the lens barrel 22 is positioned within the through-hole 214, and there is a gap between the side wall of the lens barrel 22 and the inner wall of the holder 21. In addition, a hole is also formed inside the lens barrel 22, and the holes on the lens barrel 22, the top plate 111, and the base 12 are all circular holes, with the centers of the circles all located on the optical axis, and thus a lens can be inserted into the three holes.

[0037] The holder 21 is connected to the base 12 via an elastic piece, and the lens barrel 22 is connected to the holder 21 via an elastic piece, where the elastic piece includes an upper elastic piece 23 and a lower elastic piece 24, and the upper elastic piece 23 and the lower elastic piece 24 are respectively located on opposite sides in the optical axis direction of the focusing structure 2, and the upper elastic piece 23 is made of a conductive material. In this embodiment, preferably, four upper elastic pieces 23 and four lower elastic pieces 24 are provided, and a partial structure of the upper elastic piece 23 can be connected to the base 12, the holder 21, and the lens barrel 22, respectively, and the lower elastic piece 24 can be connected to the holder 21 and the lens barrel 22, respectively.

[0038] Specifically, the upper elastic piece 23 includes a first upper connection portion 231, a second upper connection portion 232, and a third upper connection portion 233, and the first upper connection portion 231 and the second upper connection portion 232 are connected via a first bent portion 234, and the second upper connection portion 232 and the third upper connection portion 233 are connected via a second bent portion 235, and the bent shapes of the first bent portion 234 and the second bent portion 235 are not limited. A first connecting nail 211 is provided on the holder 21, a second connecting nail 224 is provided on the telescope tube 22, and connection holes (not shown) are provided at positions corresponding to the connecting nails in the second upper connection portion 232 and the third upper connection portion 233, and the second upper connection portion 232 and the third upper connection portion 233 are connected to the first connecting nail 211 and the second connecting nail 224 respectively via the connection holes, and the first upper connection portion 231 is connected to the base 12, further connecting the holder 21 to the base 12 and connecting one end of the telescope tube 22 facing away from the base 12 to the holder 21.

[0039] The first bending portion 234 and the second bending portion 235 each have a plurality of bent portions, and the plurality of bent portions are arranged along a single path and connected in sequence. The first bending portion 234 and the second bending portion 235 each have a predetermined length, and the number of bent portions and the bending directions of the first bending portion 234 and the second bending portion 235 are different from each other.

[0040] The first upper connection portion 231, the second upper connection portion 232, and the third upper connection portion 233 are located in the same plane, and the first upper connection portion 231 and the second upper connection portion 232 are installed with a gap between them, and the first bent portion 234 is installed horizontally between the first upper connection portion 231 and the second upper connection portion 232, and both ends are connected to the first upper connection portion 231 and the second upper connection portion 232, respectively. "Installed horizontally" here means that, in the plane in which the three connection portions are located, the direction from the first upper connection portion 231 to the second upper connection portion 232 is the vertical direction, and the direction perpendicular to this direction is the horizontal direction; that is, the longitudinal direction of the first bent portion 234 is perpendicular to the vertical direction.

[0041] The second upper connecting portion 232 and the third upper connecting portion 233 are spaced apart, and the second bent portion 235 is obliquely installed between the second upper connecting portion 232 and the third upper connecting portion 233, with both ends connected to the second upper connecting portion 232 and the third upper connecting portion 233, respectively. Here, oblique installation means that there is a certain included angle between the longitudinal direction of the second bent portion 235 and the direction from the second upper connecting portion 232 to the third upper connecting portion 233, and this included angle is not too large, with an included angle of 0° being preferred, and it should be understood that this should be determined according to actual conditions.

[0042] When the first upper connection part 231 is connected to the base 12, its height in the optical axis direction is lower than the height in the optical axis direction of the other two connection parts, so that the three connection parts are not located on the same plane, and because the height of the first upper connection part 231 is low, the bent part between the second upper connection part 232 and the first upper connection part 231 is deformed, and the elastic force caused by the deformation allows the second upper connection part 232 to press the holder 21 against the multiple vibration-damping balls 30, making it difficult for the holder 21 to move in the optical axis direction.

[0043] Furthermore, of the four upper elastic pieces 23, two upper elastic pieces 23 can be made into a set, and the two upper elastic pieces 23 of the same set are fixedly connected to each other by a connecting bar 236, and both ends of the connecting bar 236 are connected to the third upper connection portions 233 of the two upper elastic pieces 23, respectively.

[0044] The lower elastic piece 24 includes a first lower connecting portion 241 and a second lower connecting portion 242, which are connected via a third bent portion 243. The shape of the third bent portion 243 is not limited, and the third bent portion 243 may have multiple bent portions which are connected sequentially. A first connecting nail 211 and a second connecting nail 224 are provided at one end of the holder 21 facing the base 12 and one end of the lens barrel 22 facing the base 12, respectively. The first lower connecting portion 241 is fixedly connected to the first connecting nail 211 at the end of the holder 21 facing the base 12, and the second lower connecting portion 242 is fixedly connected to the second connecting nail 224 at the end of the lens barrel 22 facing the base 12. The upper elastic piece 23 connects one end of the lens barrel 22 facing away from the base 12 to one end of the holder 21 facing away from the base 12, and the lower elastic piece 24 connects one end of the holder 21 facing toward the base 12 to one end of the lens barrel 22 facing toward the base 12, and further, the lens barrel 22 can be suspended within the through hole 214.

[0045] 2, 9, 10, and 11, there are a plurality of connection positions between the holder 21 and the lens barrel 22, and the holder 21 and the lens barrel 22 can be connected at these connection positions. Specifically, a plurality of first bosses 212 are protruded from the inner wall of the holder 21 facing the lens barrel 22, and preferably, one first boss 212 is provided at each of the four corners of the holder 21. A second boss 222 is protruded from the outer wall of the lens barrel 22 at a position opposite the first boss 212, and when the lens barrel 22 is connected to the holder 21, a gap is provided between the corresponding first boss 212 and second boss 222.

[0046] A first connecting groove 2121 and a second connecting groove 2221 are respectively formed along the optical axis at one end of the first boss 212 and the second boss 222. The first connecting groove 2121 and the second connecting groove 2221 are arranged opposite each other, and a connecting block made of a damping material is arranged between the first connecting groove 2121 and the second connecting groove 2221. Both ends of the damping material are connected to the first boss 212 and the second boss 222, respectively, so that all four corners of the holder 21 and the lens barrel 22 are connected by the damping material.

[0047] 2 , the drive structure 4 includes a plurality of shared magnetic steel pieces 41 mounted on the inner wall of the holder 21 around the lens barrel 22, and a drive coil 42 mounted on the lens barrel 22 opposite the shared magnetic steel pieces 41. The inner wall of the holder 21 is provided with a plurality of mounting grooves (not shown), and the shared magnetic steel pieces 41 can be fixed in the mounting grooves. The lens barrel 22 is provided with a ring groove 221 around its outer wall, and the drive coil 42 has an annular shape and can be fixed in the ring groove 221 around the lens barrel 22. The drive coil 42 and the shared magnetic steel piece 41 are arranged facing each other toward one end of the lens barrel 22.

[0048] The base 12 is provided with a main plate 121, and the first upper connecting portion 231 of the upper resilient piece 23 can be connected to the main plate 121. The two upper resilient pieces 23 described above can be connected together, and the structure connecting the two upper resilient pieces 23 can also be made of a conductive material, with a portion of the structure protruding and abutting the connecting coil 223. The connecting coil 223 and the driving coil 42 are connected together. When the main plate 121 is energized to the first upper connecting portion 231, the upper resilient piece 23 and the connecting coil 223 cooperate to energize the driving coil 42. The energized driving coil 42 can receive an ampere force along the optical axis direction within the magnetic field of the multiple shared magnetic steel pieces 41, thereby driving the lens barrel 22 to move along the optical axis.

[0049] In addition, connecting posts 122 are protruded from the four corners of the base 12, and the connecting posts 122 are located at one end of the base 12 facing the holder 21. Each first upper connection part 231 faces a corresponding connecting post 122, and there is a gap between the top end of the connecting post 122 and the first upper connection part 231, the size of the gap being determined according to actual circumstances. Metal members 1221 are further embedded inside the base 12, and positions of the metal members 1221 corresponding to each connecting post 122 are all located within the connecting posts 122, and their ends may be exposed at the top ends of the connecting posts 122. The other ends of the metal members 1221 may be connected to the main plate 121, and the first upper connection parts 231 may be welded to the metal members 1221 of the corresponding connecting posts 122. In this way, the main plate 121 can control the flow of current to the first upper connection parts 231 via the metal members 1221.

[0050] 5, the drive structure 4 further includes a plurality of anti-vibration coils 43 provided on the base 12, which are fixed to and electrically connected to the main plate 121, and which are positioned on the main plate 121 to face the shared magnetic steel 41, so that the anti-vibration coils 43 and the drive coil 42 share the shared magnetic steel 41. By providing the anti-vibration coils 43, when current is applied to the anti-vibration coils 43, the anti-vibration coils 43 receive an ampere force in a direction perpendicular to the optical axis, and the shared magnetic steel 41 receives a reaction force, which allows the holder 21 to move in a direction perpendicular to the optical axis.

[0051] In another aspect, the present invention further provides an optical instrument including the optical vibration isolation device described above.

[0052] The technical features of the above-described embodiments can be combined in any desired manner, and for the sake of brevity, not all possible combinations of the technical features in the above-described embodiments will be described. However, as long as there is no contradiction in the combination of these technical features, any combination should be considered to be within the scope of the present specification.

[0053] The above examples not only illustrate some embodiments of the present invention, but also provide specific and detailed descriptions, which should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art to which this application pertains may make modifications and improvements without departing from the concept of the present invention, and all of these are within the scope of protection of the present invention. Therefore, the scope of protection of the present invention is determined by the scope of the claims. [Explanation of symbols]

[0054] 1. Housing 11 Top cover 111 Top plate 112 Side panel 12 Pedestal 121 Main plate 122 Connecting pillar 1221 Metallic materials 123 Second support stand 1231 Second rolling groove 2. Focus Structure 21 Holder 211 First connecting nail 212 First Boss 2121 First connecting groove 213 1st support stand 2131 First rolling groove 214 Through hole 22 Telescope tube 221 Ring groove 222 Second Boss 2221 Second connecting groove 223 Connecting Coil 224 Second connecting nail 23 Upper elastic piece 231 First Upper Connection 232 Second upper connection 233 Third Upper Junction 234 1st bend 235 2nd bend 236 Connection Bar 24 Lower elastic piece 241 First Lower Connection 242 Second Lower Connection 243 Third bend 25 Connection Blocks 251 connecting protrusion 30 Anti-vibration ball 4 Drive structure 41 Shared magnetic steel 42 drive coil 43 Anti-vibration coil 50 Location-Regulated Space

Claims

1. An optical vibration isolation device to which a lens having an optical axis can be attached, a housing having an installation space; a focusing structure disposed in the mounting space; an elastic connection structure connected between the focusing structure and the housing, and configured to cause the focusing structure to tend to move toward a first side of the housing along the optical axis in a free state; a plurality of vibration-damping balls provided between the focusing structure and the first side of the housing, the vibration-damping balls being sandwiched between the focusing structure and the first side of the housing by the movement tendency and being able to roll within a plane perpendicular to the optical axis by the action of an external force; a driving structure provided on the focusing structure and the housing, which generates a driving force between the focusing structure and the housing to move the focusing structure and roll the vibration-damping balls, thereby moving the focusing structure along a direction perpendicular to the optical axis while being guided by the vibration-damping balls. An optical vibration isolation device characterized by:

2. The housing includes an upper cover and a base that are removably connected to each other, and the mounting space is enclosed between the upper cover and the base. The focusing structure is connected to the base via an elastic piece, and there is a gap between the focusing structure and the base, and the vibration-damping balls are located between the focusing structure and the base.

2. The optical vibration isolation device according to claim 1.

3. One end of the focusing structure facing the base has a plurality of first support bases installed at intervals; a first rolling groove is formed at one end of the first support base facing the base; a second support stand is provided at one end of the base facing the focusing structure and at a position corresponding to the first support stand; a second rolling groove is formed at a position corresponding to the first rolling groove of the second support base such that a position restriction space is formed between the first support base and the second support base; The vibration-damping ball is positioned within the position-regulating space.

3. The optical vibration isolation device according to claim 2.

4. the drive structure includes a plurality of shared magnetic steels disposed within the focus structure; The base is provided with a main plate, An anti-vibration coil is connected to the main plate at a position corresponding to the shared magnetic steel.

3. The optical vibration isolation device according to claim 2.

5. the focusing structure includes a holder and a lens barrel; the holder has a through hole, the lens barrel is movably installed within the through hole along the direction of the optical axis, The elastic piece includes an upper elastic piece and a lower elastic piece, the upper elastic piece and the lower elastic piece are respectively located on opposite sides of the focusing structure in the direction of the optical axis, a part of the upper elastic piece is connectable to the base, the holder, and the lens barrel, The lower elastic piece is connectable to the holder and the lens barrel, respectively.

5. The optical vibration isolation device according to claim 4.

6. the upper elastic piece includes a first upper connection portion, a second upper connection portion, and a third upper connection portion; the first upper connection portion and the second upper connection portion are connected by a first bent portion, the second upper connection portion and the third upper connection portion are connected by a second bent portion, The holder is provided with a first connecting nail, The lens barrel is provided with a second connecting nail, the second upper connection portion and the third upper connection portion are connected to the first connecting nail and the second connecting nail, respectively; The first upper connection portion is connected to the base.

6. The optical vibration isolation device according to claim 5.

7. the lower elastic piece includes a first lower connecting portion and a second lower connecting portion, the first lower connection portion and the second lower connection portion are connected by a second bent portion, the first lower connection portion is fixedly connected to the holder; The second lower connection portion is fixedly connected to the lens barrel.

7. The optical vibration isolation device according to claim 6.

8. The elastic pieces include four upper elastic pieces and four lower elastic pieces, The four upper elastic pieces are arranged in pairs, and two upper elastic pieces in the same pair are connected by a connecting bar to form a single whole.

6. The optical vibration isolation device according to claim 5.

9. The lens barrel further includes a damping material provided between the holder and the lens barrel.

6. The optical vibration isolation device according to claim 5.

10. the shared magnetic steel is installed on the inner wall of the holder, surrounding the lens barrel; the drive structure includes a drive coil installed on the lens barrel facing the shared magnetic steel; A main plate is installed on the base, The upper elastic pieces are connectable to the main plate and the driving coil, respectively.

10. The optical vibration isolation device according to claim 9.

11. a metal member electrically connected to the main plate is embedded inside the base; The upper elastic piece is welded to the metal member.

11. The optical vibration isolation device according to claim 10.

12. An optical instrument comprising the optical vibration isolation device according to any one of claims 1 to 11. An optical instrument characterized by:

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