Optical image stabilization structure

Abstract

The application discloses an optical anti-shake structure, which comprises a fixed part and a movable part. The fixed part provides a containing space and comprises a bottom plate and a first annular sidewall. The bottom end of the first annular sidewall is orthogonally connected with the bottom plate to form the containing space. The inner sidewall of the first annular sidewall has a contact surface. The movable part comprises a second annular sidewall. The second annular sidewall is arranged in the containing space. The outer sidewall of the second annular sidewall has an abutting surface. The abutting surface is matched with the contact surface in point contact. The abutting surface is configured to be slidable relative to the contact surface. Through the contact mode of the movable part and the fixed part, the contact position, the contact area and the contact force of the optical anti-shake structure are more stable, so that the product performance is improved.

Description

Technical Field

[0001] This application relates to the field of optical technology, and more particularly to an optical anti-shake structure. Background Technology

[0002] The existing optical anti-shake structure includes a movable part and a fixed part. The fixed part is sleeved on the movable part, so that the movable part is located inside the fixed part. The movable part and the fixed part are in contact with each other in a curved manner, that is, the curved surface of the movable part corresponds to the curved surface of the fixed part.

[0003] However, the contact between curved surfaces can cause instability in the contact position or area during operation, which can affect the optical image stabilization performance of the product.

[0004] Therefore, there is indeed a need for further improvements to the existing technology to provide better solutions. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the main purpose of this application is to provide an optical anti-shake structure, which improves the contact method between the movable part and the fixed part, so as to stabilize the contact position or contact area and thus improve product performance.

[0006] The main technical means adopted to achieve the above objectives is an optical anti-shake structure, characterized by comprising:

[0007] A fastener that provides accommodating space, and the fastener comprising:

[0008] Base plate;

[0009] The first annular sidewall has its bottom end orthogonally adjacent to the base plate to form the accommodating space, and the inner sidewall of the first annular sidewall has a contact surface.

[0010] A movable member disposed in the receiving space, and the movable member comprising:

[0011] A second annular sidewall is disposed in the accommodating space, and the outer sidewall of the second annular sidewall has a top surface;

[0012] The abutting surface is matched with the contact surface in point contact, and the abutting surface is configured to slide relative to the contact surface.

[0013] Preferably, the contact surface is planar and the abutting surface is spherical.

[0014] Preferably, the contact surface is spherical and the abutting surface is a planar surface with protrusions.

[0015] Preferably, the second annular sidewall includes an upper annular sidewall and a lower annular sidewall. The upper annular sidewall includes an upper groove, and the lower annular sidewall includes a lower groove. The opening of the upper groove and the opening of the lower groove match to form a magnetic component fixing part.

[0016] Preferably, the optical anti-shake structure further comprises:

[0017] A spring sheet is disposed on the fixing member and elastically abuts against the abutting surface.

[0018] Preferably, one end of the spring is disposed on the fixing member and extends toward the outer wall of the second annular sidewall, and the spring is bent to form a bent portion. After forming the bent portion, the spring extends along the outer wall of the second annular sidewall to form the other end of the spring.

[0019] Preferably, the other end of the spring sheet has an elastic abutment surface, the elastic abutment surface is planar, the abutment surface makes point contact with the elastic abutment surface, and the abutment surface is configured to slide relative to the elastic abutment surface.

[0020] Preferably, the number of spring pieces is three, and each spring piece is equidistant from the other; the number of contact surfaces is three, and each contact surface is equidistant from the other. Preferably, the first annular sidewall has a fixing portion, which is recessed from the top end of a portion of the first annular sidewall toward the bottom end of the first annular sidewall, the contact surface is disposed on the inner sidewall of the fixing portion, and the spring piece is disposed at the top end of the fixing portion.

[0021] Preferably, the spring comprises:

[0022] A through hole, which is disposed in the bend and extends through the portion of the bend.

[0023] Preferably, the abutting surface includes an upper abutting surface and a lower abutting surface. The upper abutting surface extends from the top end of the second annular sidewall toward the lower abutting surface, and the lower abutting surface extends from the bottom end of the second annular sidewall toward the upper abutting surface. The upper abutting surface and the lower abutting surface together form a spherical surface. The upper abutting surface makes point contact with the elastic abutting surface, and the contact surface contacts the lower abutting surface.

[0024] Preferably, the first annular sidewall has a coil insertion portion and a coil embedding portion. The coil insertion portion is recessed from the top end of a portion of the first annular sidewall toward the bottom end of the first annular sidewall, and the coil embedding portion penetrates through the first annular sidewall.

[0025] Preferably, the coil embedding portion is disposed on the opposite side of the coil insertion portion, and the coil insertion portion and the coil embedding portion are disposed between the fixing portion, and the coil insertion portion and the coil embedding portion correspond to the magnetic component fixing portion.

[0026] Preferably, the optical anti-shake structure further comprises:

[0027] A plurality of coils, some of which are inserted into the coil insertion portion and some of which are embedded in the coil embedding portion; and

[0028] Multiple sets of magnetic components are disposed in the magnetic component fixing part.

[0029] Preferably, some of the multiple sets of magnetic components are orthogonally arranged with the second annular sidewall in the magnetic component fixing part, and some of the multiple sets of magnetic components are horizontally arranged with the second annular sidewall in the magnetic component fixing part.

[0030] Preferably, some of the multiple sets of magnetic components are orthogonally arranged in the magnetic component fixing part and corresponding to the coil insertion part with the second annular sidewall, while some of the multiple sets of magnetic components are horizontally arranged in the magnetic component fixing part and corresponding to the coil embedding part with the second annular sidewall.

[0031] With the above-described structure, the fixed component and the movable component of this application make point contact with each other, making the contact position, contact area and contact force more stable, so as to improve product performance. Attached Figure Description

[0032] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0033] Figure 1 This is a perspective view of the optical anti-shake structure of this application.

[0034] Figure 2 This is an exploded view of the optical anti-shake structure of this application.

[0035] Figure 3 This is a top view of the optical anti-shake structure of this application.

[0036] Figure 4 This is a front view of the optical anti-shake structure combined with the coil of this application.

[0037] Figure 5 This is a side view of the optical anti-shake structure combined with the coil in this application.

[0038] Figure 6 This is another side view of the optical anti-shake structure combined with the coil in this application.

[0039] Figure 7 This is a side perspective view of the optical anti-shake structure combined with the coil of this application.

[0040] Figure 8 This is another perspective view of the optical anti-shake structure combined with the coil in this application.

[0041] Figure 9 yes Figure 7 A side view exploded view.

[0042] Figure 10 yes Figure 8 Another side view exploded view. Detailed Implementation

[0043] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0044] A preferred embodiment of the optical anti-shake structure 10 of this application, such as... Figure 1 As shown, the optical anti-shake structure 10 includes a fixing member 20 and a movable member 30. The fixing member 20 provides an accommodating space S, and the movable member 30 is slidably disposed in the accommodating space relative to the fixing member. The outer sidewall of the movable member 30 is matched with the inner sidewall of the fixing member 20 in point contact.

[0045] Specifically, such as Figure 2 and Figure 3 As shown, the fixing member 20 has a base plate 21 and a first annular sidewall 22. The bottom end of the first annular sidewall 22 is orthogonally adjacent to the base plate 21, so that the first annular sidewall 22 and the base plate 21 form the accommodating space S. The inner sidewall of the first annular sidewall 22 has a contact surface 220. The movable member 30 is placed in the accommodating space S. The movable member 30 includes a second annular sidewall 31, which is disposed in the accommodating space S corresponding to the first annular sidewall 22. The outer sidewall of the second annular sidewall 31 has abutting surface 310. The abutting surface 310 and the contact surface 220 are in point contact with each other, and the abutting surface 310 is configured to slide relative to the contact surface 220, so that the contact position, contact area and contact force of the fixing member 20 and the movable member 30 in the optical anti-shake structure 10 are more stable, so as to improve the product performance.

[0046] Furthermore, the first annular sidewall 22 has a fixing portion 221, a coil insertion portion 222, and a coil embedding portion 223. The fixing portion 221 is recessed from a portion of the top end of the first annular sidewall 22 toward the bottom end of the first annular sidewall 22. The first annular sidewall 22 is provided with a contact surface 220 corresponding to the inner sidewall 221 of the fixed part. The contact surface 220 extends towards the base plate 21 near the top edge of the fixed part 221. The coil insertion part 222 is recessed from the top of a portion of the first annular sidewall 22 towards the bottom of the first annular sidewall 22. Specifically, the coil insertion part 222 is further recessed from the top of the fixed part 221 towards the bottom of the fixed part 221. The coil embedding part 223 penetrates the first annular sidewall 22 and is disposed on the opposite side of the coil insertion part 222. The coil insertion part 222 and the coil embedding part 223 are disposed between the fixed part 221. In this embodiment, the contact surface 220 of the inner sidewall of the fixing member 20 is a plane, and the plane is a plane with an incline. Specifically, the inclined plane extends from the base plate 21 toward the fixed part 221 at an angle greater than 90 degrees.

[0047] The movable member 30 includes a second annular sidewall 31, which is disposed above the base plate 21 and surrounded by a first annular sidewall 22. The outer sidewall of the second annular sidewall 31 has abutting surface 310, which extends arcuately from the top end of the second annular sidewall 31 toward the bottom end. That is, the abutting surface 310 is an outwardly convex curved surface. In this embodiment, the abutting surface 310 of the outer sidewall of the movable member 30 is spherical. The inner side of the second annular sidewall 31 is used to arrange an optical lens. In this embodiment, the second annular sidewall 31 includes an upper annular sidewall 311 and a lower annular sidewall 312. The upper annular sidewall 311 includes an upper groove 3110, and the lower annular sidewall 312 includes a lower groove 3120. The groove opening of the upper groove 3110 and the groove opening of the lower groove 3120 match to form a magnetic fixing part 313. In detail, the upper groove 3110 is formed by recessing from the bottom end of the upper annular sidewall 311 toward the top end of the upper annular sidewall 311, while the lower groove 3120 is formed by recessing from the top end of the lower annular sidewall 312 toward the bottom end of the lower annular sidewall 312. When the bottom end of the upper annular sidewall 311 and the top end of the lower annular sidewall 312 are combined, the two ends of the groove opening of the upper groove 3110 and the two ends of the groove opening of the lower groove 3120 are connected to form the magnetic component fixing part 313. The magnetic component fixing part 313 is correspondingly provided with the coil insertion part 222 and the coil embedding part 223.

[0048] In another embodiment, the contact surface 220 of the inner sidewall of the fixing member 20 is a spherical surface that protrudes toward the outer sidewall of the movable member 30, and the abutting surface 310 of the outer sidewall of the movable member 30 is a plane with protrusions that protrude toward the inner sidewall of the fixing member 20.

[0049] In this embodiment, the abutting surface 310 includes an upper abutting surface 3101 and a lower abutting surface 3102. The upper abutting surface 3101 extends from the top end of the second annular sidewall 31 towards the lower abutting surface 3102, and the lower abutting surface 3102 extends from the bottom end of the second annular sidewall 31 towards the upper abutting surface 3101. The upper abutting surface 3101 and the lower abutting surface 3102 together form the spherical surface, and the contact surface 220 contacts the lower abutting surface 3102. In this embodiment, as... Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10 As shown, the optical anti-shake structure 10 further includes a spring sheet 40, which is disposed on the fixing member 20 and elastically abuts against the abutment surface 310 of the outer sidewall of the movable member 30. Specifically, one end of the spring sheet 40 is disposed at the top of the fixing portion 221 of the fixing member 20 and extends toward the outer sidewall of the second annular sidewall 31, and the spring sheet 40 is bent to form a bent portion 41. After forming the bent portion 41, the spring sheet 40 extends along the outer sidewall of the second annular sidewall 31 to form the other end of the spring sheet 40. The other end of the spring sheet 40 has an elastic abutment surface 42, which is planar. The upper abutment surface 3101 makes point contact with the elastic abutment surface 42 and is configured to slide relative to the elastic abutment surface 42. In this embodiment, one end of the spring piece 40 is locked, bonded or welded to the top of the fixed part 221 of the fastener 20, so that the elastic abutting surface 42 of the spring piece 40 can provide relative sliding of the abutting surface 310.

[0050] In this embodiment, the spring sheet 40 includes a through hole 43, which is disposed on the bending portion 41 and extends through the portion of the bending portion 41. The through hole 43 makes it easier for the spring sheet 40 to bend and maintain appropriate elasticity when bending.

[0051] Furthermore, the number of the spring pieces 40 matches the number of the fixing parts 221. In this embodiment, there are three spring pieces 40, and each spring piece 40 is equidistant from the others; there are three fixing parts 221, and each fixing part 221 is equidistant from the others; there are three contact surfaces 220, and each contact surface 220 is equidistant from the others.

[0052] In this embodiment, the optical anti-shake structure 10 further includes a plurality of coils 50 and a plurality of magnetic components 51. Some of the plurality of coils 50 are inserted into the coil insertion portion 222 and some of the plurality of coils 50 are embedded in the coil embedding portion 223. The plurality of magnetic components 51 are disposed in the magnetic component fixing portion 313.

[0053] In detail, some of the multiple sets of magnetic components 51 are orthogonally arranged with the second annular sidewall 31 in the magnetic component fixing part 313, while some of the multiple sets of magnetic components 51 and the second annular sidewall 31 are horizontally arranged in the magnetic component fixing part 313. Some of the multiple sets of magnetic components 51 and the second annular sidewall 31 are orthogonally arranged in the magnetic component fixing part 313 and correspond to the coil insertion part 222, while some of the multiple sets of magnetic components 51 and the second annular sidewall 31 are horizontally arranged in the magnetic component fixing part 313 and correspond to the coil embedding part 223. In this embodiment, each set of magnetic components 51 is composed of two magnetic components arranged side by side. In the above embodiment, the position, contact area, and contact force of the contact surface are kept stable during operation through three point contact positions and three spring pieces, thus stabilizing the contact friction coefficient and positive force, ensuring smooth operation.

[0054] With the above-described structure, the fixed component and the movable component of this application make point contact with each other, making the contact position, contact area and contact force more stable, so as to improve product performance.

[0055] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0056] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms fall within the scope of protection of this application.

Claims

1. An optical anti-shake structure, characterized in that, Include: A fastener that provides accommodating space, and the fastener comprising: Base plate; The first annular sidewall has its bottom end orthogonally adjacent to the base plate to form the accommodating space, and the inner sidewall of the first annular sidewall has a contact surface. A movable member disposed in the receiving space, and the movable member comprising: A second annular sidewall is disposed in the accommodating space, and the outer sidewall of the second annular sidewall has a top surface, the top surface including an upper top surface and a lower top surface, the upper top surface extending from the top end of the second annular sidewall toward the lower top surface, the lower top surface extending from the bottom end of the second annular sidewall toward the upper top surface, the upper top surface and the lower top surface together forming a spherical surface; A spring sheet is disposed on the fixing member, and the other end of the spring sheet has an elastic abutment surface; The upper abutment surface makes point contact with the elastic abutment surface, the contact surface makes point contact with the lower abutment surface, and the upper abutment surface and the lower abutment surface are configured to slide relative to the elastic abutment surface and the contact surface.

2. The optical anti-shake structure as described in claim 1, characterized in that, The contact surface is planar.

3. The optical anti-shake structure as described in claim 1, characterized in that, The contact surface is composed of a sphere.

4. The optical anti-shake structure as described in claim 2, characterized in that, The second annular sidewall includes an upper annular sidewall and a lower annular sidewall. The upper annular sidewall includes an upper groove, and the lower annular sidewall includes a lower groove. The groove opening of the upper groove and the groove opening of the lower groove match to form a magnetic component fixing part.

5. The optical anti-shake structure as described in claim 4, characterized in that, The spring sheet elastically abuts against the abutting surface.

6. The optical anti-shake structure as described in claim 5, characterized in that, One end of the spring is disposed on the fixing member and extends toward the outer wall of the second annular sidewall, and the spring is bent to form a bent portion. After forming the bent portion, the spring extends along the outer wall of the second annular sidewall to form the other end of the spring.

7. The optical anti-shake structure as described in claim 6, characterized in that, The elastic abutment surface is planar and is configured to slide relative to the elastic abutment surface.

8. The optical anti-shake structure as described in claim 5, characterized in that, The number of spring pieces is three, and each spring piece is equidistant from the others; the number of contact surfaces is three, and each contact surface is equidistant from the others.

9. The optical anti-shake structure as described in claim 5, characterized in that, The first annular sidewall has a fixing portion, which is recessed from the top end of the first annular sidewall toward the bottom end of the first annular sidewall. The contact surface is disposed on the inner sidewall of the fixing portion, and the spring piece is disposed at the top end of the fixing portion.

10. The optical anti-shake structure as described in claim 6, characterized in that, The spring clip includes: A through hole, which is disposed in the bend and extends through the portion of the bend.

11. The optical anti-shake structure as described in claim 9, characterized in that, The first annular sidewall has a coil insertion portion and a coil embedding portion. The coil insertion portion is recessed from the top end of the first annular sidewall toward the bottom end of the first annular sidewall, and the coil embedding portion penetrates through the first annular sidewall.

12. The optical anti-shake structure as described in claim 11, characterized in that, The coil embedding part is disposed on the opposite side of the coil insertion part, and the coil insertion part and the coil embedding part are disposed between the fixing part, and the coil insertion part and the coil embedding part correspond to the magnetic component fixing part.

13. The optical anti-shake structure as described in claim 12, characterized in that, The optical anti-shake structure further includes: A plurality of coils, some of which are inserted into the coil insertion portion and some of which are embedded in the coil embedding portion; and Multiple sets of magnetic components are disposed in the magnetic component fixing part.

14. The optical anti-shake structure as described in claim 13, characterized in that, Some of the multiple sets of magnetic components are orthogonally arranged with the second annular sidewall in the magnetic component fixing part, while some of the multiple sets of magnetic components are horizontally arranged with the second annular sidewall in the magnetic component fixing part.

15. The optical anti-shake structure as described in claim 14, characterized in that, Some of the multiple sets of magnetic components are orthogonally arranged with the second annular sidewall in the magnetic component fixing part and corresponding to the coil insertion part, while some of the multiple sets of magnetic components are horizontally arranged with the second annular sidewall in the magnetic component fixing part and corresponding to the coil embedding part.

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