Lens fixing structure and camera

Abstract

The utility model provides a lens fixing structure and a camera, and relates to the technical field of image acquisition. The lens fixing structure comprises a bearing piece, a lens, a clamping piece and a hoop, the bearing piece is provided with a lens assembling face, the lens assembling face is located on one side of the bearing piece in the first direction, the lens assembling face is provided with a lens assembling hole, and the lens is assembled in the lens assembling hole in the mode that the lens can move in the first direction. The clamping piece is arranged on the outer side of the lens in a sleeving mode and fixedly arranged on the lens assembling face, an inner cavity defined by the clamping piece is coaxial with the lens assembling hole, the hoop is arranged on the outer side of the clamping piece in a sleeving mode, and the clamping piece is tightly held by the hoop so that the clamping piece can elastically deform in the direction of the central axis of the lens assembling hole. The clamping piece which elastically deforms towards the direction of the central axis of the lens assembly hole is used for clamping and fixing the lens, and the first direction is the axial direction of the lens assembly hole. Therefore, the coaxiality of the lens and the lens assembly hole is good.

Description

Technical Field

[0001] The present application relates to the field of image acquisition technology, and in particular to a lens fixing structure and a camera. Background Art

[0002] In industrial production and daily life, cameras are often used to collect image data.

[0003] A camera often includes a lens fixing structure and a photosensitive element. The lens fixing structure may include a carrier and a lens. The carrier has a lens mounting surface. The lens mounting surface has a lens mounting hole. The lens is mounted in the lens mounting hole in a manner that it can move axially along the lens mounting hole. The photosensitive element is arranged in the carrier and opposite to the lens. The photosensitive element can be used to sense light signals from the direction of the lens. The focusing of the camera can be achieved by adjusting the axial position of the lens in the lens mounting hole.

[0004] In order to fix the lens and the carrier after the lens completes focusing, in the related art, the lens fixing structure may also include a connecting member and a pressing member. The carrier may also have a connecting surface, the connecting surface is located on the side of the carrier in the radial direction of the lens, one end of the connecting member is fixedly connected to the connecting surface, and the other end of the connecting member is located on the radial side of the lens. The pressing member presses the lens onto the connecting member along the radial direction of the lens, so that the lens can be fixed to the carrier through the pressing member and the connecting member.

[0005] However, in the related art, the coaxiality between the lens and the lens assembly hole is poor. Therefore, how to improve the coaxiality between the lens and the lens assembly hole becomes a problem to be solved in lens assembly. Utility Model Content

[0006] Based on this, the present application provides a lens fixing structure and a camera, which can improve the coaxiality between the lens and the lens assembly hole.

[0007] In order to achieve the above-mentioned purpose, the first aspect of the embodiment of the present application provides a lens fixing structure, which includes a carrier, a lens, a clamping member and a hoop. The carrier has a lens mounting surface, which is located on one side of the carrier in the first direction, and the lens mounting surface has a lens mounting hole, and the lens is mounted in the lens mounting hole in a manner that it can move along the first direction. The clamping member is sleeved on the outside of the lens, and the clamping member is fixedly arranged on the lens mounting surface. The inner cavity surrounded by the clamping member is coaxial with the lens mounting hole. The hoop is sleeved on the outside of the clamping member, and the hoop clamps the clamping member so that the clamping member is elastically deformed in the direction of the central axis of the lens mounting hole. The clamping member that is elastically deformed in the direction of the central axis of the lens mounting hole is used to clamp and fix the lens. Among them, the first direction is the axial direction of the lens mounting hole.

[0008] Through the above arrangement, the clamp and the carrier are in a decoupled state. When the clamp clamps the clamp, each side of the clamp can be elastically deformed in the direction of the center axis of the lens mounting hole. This can improve the coaxiality of the lens mounting hole with the lens mounting hole, which is sleeved in the clamp and clamped by the clamp that elastically deforms in the direction of the center axis of the lens mounting hole.

[0009] In addition, the inner cavity surrounded by the clamping member is coaxial with the lens assembly hole, which is conducive to making the elastic deformation of each side of the clamping member clamped by the clamping hoop 400 more consistent, so that the force on each side of the lens is more uniform, which is conducive to improving the coaxiality of the lens and the lens assembly hole.

[0010] Since the coaxiality between the lens and the lens mounting hole is high, the positioning accuracy of the lens and the photosensitive element is good. The positioning accuracy of the lens is high, which is conducive to the photosensitive element sensing the light signal from the lens. In addition, since the coaxiality between the lens and the lens mounting hole is good, the photosensitive element's sensing of the light signal is not easily affected by the deformation of the lens and the carrier due to changes in ambient temperature. The camera has good thermal stability and temperature drift performance.

[0011] In addition, the clamping piece and the clamping hoop can both be located on the side facing the lens mounting surface, which can make the size of the clamping piece and the clamping hoop smaller, so that the lens fixing structure occupies less space and is lighter in weight. The lighter weight of the lens fixing structure allows the lens fixing structure to be fixed to the camera housing by a smaller number of fixing parts, which is conducive to further reducing the space required for arranging the lens fixing structure.

[0012] In a possible implementation, the clamping member includes a support portion and a plurality of clips that are equally spaced and distributed along the circumference of the lens mounting hole. One end of the support portion in the first direction is fixedly disposed on the lens mounting surface, and the clip is fixedly connected to the other end of the support portion in the first direction. A clamping hoop is sleeved on the outside of the clip, and the clamping hoop clamps the clip tightly so that the clip is elastically deformed in the direction of the central axis of the lens mounting hole, and the plurality of clips that are elastically deformed in the direction of the central axis of the lens mounting hole are used to clamp and fix the lens.

[0013] In a possible implementation, the clip includes a connecting section and a clamping section. One end of the connecting section in the first direction is connected to the clamping section, and the other end of the connecting section in the first direction is connected to the supporting portion. In the circumferential direction of the lens assembly hole, the size of the connecting section is smaller than the size of the clamping section, and the connecting section is located between the two ends of the clamping section.

[0014] In a possible implementation, the support portion includes an abutment plate, the abutment plate is perpendicular to the first direction, the abutment plate is located at one end of the support portion away from the lens mounting surface, and the clip is fixedly connected to the abutment plate. The hoop is located on a side of the abutment plate away from the lens mounting surface, and a surface of the abutment plate on a side away from the lens mounting surface is used to abut against the hoop.

[0015] In a possible implementation, the support portion further includes a sleeve. One end of the sleeve in the first direction is connected to the abutment plate, and the other end of the sleeve in the first direction is fixedly arranged on the lens mounting surface. The sleeve and the abutment plate are an integral structure, and the abutment plate and the clip are an integral structure. The sleeve has notches on both sides in the second direction, and the notches connect the inner cavity of the sleeve with the outer side of the sleeve. The second direction is perpendicular to the first direction.

[0016] In a possible implementation, the support portion further includes a connecting plate, an end of the sleeve facing away from the abutting plate is fixedly connected to the connecting plate, and the connecting plate is fixedly connected to the lens mounting surface via a fastener.

[0017] In a possible implementation, the notch extends to the connecting plate, and a portion of the fastener is located in the notch.

[0018] In a possible implementation manner, a projection of the fastener along the first direction is located outside a projection of the abutment plate along the first direction.

[0019] In a possible implementation, the support portion further includes a connecting block. The connecting block is fixedly connected to the sleeve, the connecting block is located between the abutment plate and the lens mounting surface, and the connecting block is located to the side of the notch in the third direction. The connecting block has a first connecting surface facing the second direction, the carrier has a second connecting surface facing the second direction, and the first connecting surface is coplanar with the second connecting surface. The first connecting surface has a first threaded hole, and the second connecting surface has a second threaded hole. The third direction is perpendicular to the first direction, and the third direction is perpendicular to the second direction.

[0020] In a possible implementation, the hoop includes a first arcuate hoop plate portion, a second arcuate hoop plate portion and a hoop plate connecting portion. One end of the first arcuate hoop plate portion is connected to one end of the second arcuate hoop plate portion through the hoop plate connecting portion, the first arcuate hoop plate portion and the hoop plate connecting portion are an integral structure, the second arcuate hoop plate portion and the hoop plate connecting portion are an integral structure, and the other end of the first arcuate hoop plate portion is used to be locked with the other end of the second arcuate hoop plate portion through a locking structure, so that the first arcuate hoop plate portion and the second arcuate hoop plate portion hold the clamping member tightly.

[0021] In a possible implementation manner, the hoop plate connecting portion has an inner side surface facing the clamping member, the inner side surface has a groove, and the groove penetrates the hoop plate connecting portion along the first direction.

[0022] In a possible implementation, the locking structure includes a first connecting ear plate portion connected to the first arc-shaped hoop plate portion, a second connecting ear plate portion connected to the second arc-shaped hoop plate portion, and a locking member. The first connecting ear plate portion has a first connecting hole, the second connecting ear plate portion has a second connecting hole, the locking member is inserted into the first connecting hole and the second connecting hole, and the first connecting ear plate portion and the second connecting ear plate portion are locked and fixed by the locking member.

[0023] A second aspect of an embodiment of the present application provides a camera, which includes the lens fixing structure in any of the above-mentioned embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 A schematic diagram of a lens fixing structure provided in an embodiment of the present application;

[0026] Figure 2 An exploded schematic diagram of a lens fixing structure provided in an embodiment of the present application;

[0027] Figure 3 A cross-sectional schematic diagram of a lens fixing structure provided in an embodiment of the present application;

[0028] Figure 4 A schematic diagram of a clamping member of a lens fixing structure provided in an embodiment of the present application from one viewing angle;

[0029] Figure 5 for Figure 4 A schematic diagram of another perspective of the clamping member of the lens fixing structure provided in;

[0030] Figure 6 A schematic diagram of a clamp of a lens fixing structure provided in an embodiment of the present application.

[0031] Description of reference numerals:

[0032] 100, carrier; 110, lens mounting surface; 120, second connecting surface; 130, boss structure; 140, lens mounting hole; 150, second threaded hole; 160, positioning hole;

[0033] 200, lens;

[0034] 300, clamping member; 310, supporting portion; 311, abutting plate; 312, sleeve; 3121, notch; 313, connecting plate; 314, connecting block; 3141, first connecting surface; 3142, first threaded hole; 320, clip; 321, connecting section; 322, clamping section;

[0035] 400, hoop; 410, first arc-shaped hoop plate portion; 420, second arc-shaped hoop plate portion; 430, hoop plate connecting portion; 431, groove; 440, first connecting ear plate portion; 441, first connecting hole; 450, second connecting ear plate portion; 451, second connecting hole; 460, locking member;

[0036] 500. Fasteners. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme in the embodiment of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals throughout represent the same or similar parts or parts with the same or similar functions. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application. The embodiments of the present application are described in detail below in conjunction with the drawings.

[0038] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are orientations or positional relationships based on the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0040] The terms "first", "second", "third" (if any) in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein, for example.

[0041] In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or display comprising a series of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, product, or display.

[0042] The embodiment of the present application provides a camera, which may include but is not limited to a 2D camera, a 3D camera, etc. The embodiment of the present application takes an industrial camera as an example for explanation. The camera includes a lens fixing structure.

[0043] Figure 1 A schematic diagram of a lens fixing structure provided in an embodiment of the present application, wherein the x direction is the first direction, the y direction is the second direction, the z direction is the third direction, the first direction is the axial direction of the lens assembly hole, the second direction is perpendicular to the first direction, the third direction is perpendicular to the first direction, and the third direction is perpendicular to the second direction.

[0044] like Figure 1 As shown, in the embodiment of the present application, the lens fixing structure includes a carrier 100 and a lens 200, the carrier 100 has a lens mounting surface 110, the lens mounting surface 110 is located on one side of the carrier 100 in the first direction, and the lens mounting surface 110 has a lens mounting hole 140 (as shown below) Figure 2 As shown in FIG. 1 , the lens assembly hole 140 communicates the inner cavity of the carrier 100 with the outer side of the carrier 100, and the lens 200 is assembled in the lens assembly hole 140 in a manner that it can move along the first direction.

[0045] In some examples, the lens 200 can be threadedly connected to the hole wall of the lens assembly hole 140, so that the lens 200 can be moved along the first direction by screwing in or out. In this way, it is convenient to more accurately control the position of the lens 200 in the first direction, and the thread has a pre-fixing effect. After the lens 200 is adjusted to the target position, the lens 200 can be pre-fixed with the carrier 100 through the thread.

[0046] In other examples, the lens 200 may contact the hole wall of the lens assembly hole 140 through a friction-increasing structure, and the friction-increasing structure is used to increase the friction between the lens 200 and the hole wall of the lens assembly hole 140. For example, the side wall of the lens 200 and the hole wall of the lens assembly hole 140 may both be rough surfaces. The lens 200 may move along the first direction under the action of a force capable of overcoming the friction between the lens 200 and the hole wall of the lens assembly hole 140.

[0047] In the embodiment of the present application, the camera also includes a photosensitive element (not shown) arranged in the carrier 100, and the photosensitive element is opposite to the lens 200 along a first direction. The light signal outside the camera can be irradiated onto the photosensitive element through the lens 200. The photosensitive element can be used to sense the light signal from the direction of the lens 200. The distance between the lens 200 and the photosensitive element in the first direction can be changed by adjusting the position of the lens 200 in the first direction, so as to achieve the focusing of the camera.

[0048] Exemplarily, the photosensitive element may include, but is not limited to, a complementary metal oxide semiconductor (CMOS) element, a charge coupled device (CCD) and the like.

[0049] After the camera has completed focusing, the lens 200 and the carrier 100 need to be fixed.

[0050] In the related art, in order to fix the lens and the carrier, the lens fixing structure may further include a connecting member and a pressing member. The carrier may further have a connecting surface, the connecting surface is located on one side of the carrier in the radial direction of the lens, one end of the connecting member is fixedly connected to the connecting surface, and the other end of the connecting member is located on the radial side of the lens. The pressing member presses the lens onto the connecting member along the radial direction of the lens, so that the lens can be fixed to the carrier through the pressing member and the connecting member.

[0051] However, in the related art, when the lens is pressed against the connecting member fixed to the connecting surface by the pressing member, the connecting member is fixed on the radial side of the lens, and the pressing member presses the lens against the connecting member by pushing the lens toward the connecting member. The lens is easily deflected relative to the lens assembly hole under the action of the force in the direction of the connecting member. That is, under the action of the force in the direction of the connecting member, the axis of the lens is easily deflected from the axis of the lens assembly hole, resulting in poor coaxiality between the lens and the lens assembly hole, making the positioning accuracy of the lens and the photosensitive element poor, which in turn affects the photosensitive element's sensing of the light signal from the direction of the lens. In addition, due to the poor coaxiality between the lens and the lens assembly hole, when the ambient temperature changes and causes the lens and the carrier to deform, the effect of the ambient temperature change on the light signal sensed by the photosensitive element will be amplified, resulting in poor thermal stability of the camera and poor temperature drift performance. In addition, the lens is connected to the connecting surface of the carrier through a connecting piece located on the radial side thereof. The connecting piece is located on the radial side of the lens and the carrier. In this case, a larger connecting piece is often required to connect the carrier to the lens. The larger connecting piece will cause the lens fixing structure to occupy a larger space and be heavier. The heavier weight of the lens fixing structure requires more fixing pieces to fix the lens fixing structure to the camera housing, which will further increase the space required for arranging the lens fixing structure.

[0052] Figure 2 An exploded schematic diagram of a lens fixing structure provided in an embodiment of the present application, Figure 3 A cross-sectional schematic diagram of a lens fixing structure provided in an embodiment of the present application.

[0053] like Figure 2 , Figure 3 As shown, and see Figure 1 Based on this, in the embodiment of the present application, the lens fixing structure further includes a clamping member 300 and a hoop 400. The clamping member 300 is sleeved on the outside of the lens 200, and the clamping member 300 is fixedly arranged on the lens mounting surface 110. The inner cavity surrounded by the clamping member 300 is coaxial with the lens mounting hole 140. The hoop 400 is sleeved on the outside of the clamping member 300. The hoop 400 holds the clamping member 300 tightly, so that the clamping member 300 is elastically deformed in the direction of the central axis of the lens mounting hole 140. The clamping member 300 that is elastically deformed in the direction of the central axis of the lens mounting hole 140 is used to clamp and fix the lens 200.

[0054] In this way, the hoop 400 and the carrier 100 are in a decoupled state. When the hoop 400 holds the clamping member 300 tightly, each side of the clamping member 300 can be elastically deformed in the direction of the central axis of the lens assembly hole 140, so that the lens 200, which is sleeved in the clamping member 300 and clamped by the clamping member 300 that is elastically deformed in the direction of the central axis of the lens assembly hole 140, can have a better coaxiality with the lens assembly hole 140. In addition, the inner cavity surrounded by the clamping member 300 is coaxial with the lens assembly hole 140, which is conducive to making the elastic deformation of each side of the clamping member 300 held by the hoop 400 more consistent, so that the force on each side of the lens 200 is more uniform, which is conducive to improving the coaxiality of the lens 200 and the lens assembly hole 140. Since the coaxiality between the lens 200 and the lens assembly hole 140 is relatively high, the positioning accuracy of the lens 200 and the photosensitive element can be relatively good. The positioning accuracy of the lens 200 is relatively high, which is beneficial to the photosensitive element's sensing of the light signal from the lens 200. In addition, since the coaxiality between the lens 200 and the lens assembly hole 140 is relatively good, the sensing of the light signal by the photosensitive element is not easily affected by the deformation of the lens 200 and the carrier 100 due to changes in ambient temperature, and the camera has relatively good thermal stability and temperature drift performance. In addition, the clamping member 300 and the hoop 400 can both be located on the side facing the lens assembly surface 110, which can make the size of the clamping member 300 and the hoop 400 smaller, so that the space occupied by the lens fixing structure is relatively small and the weight is relatively light. The light weight of the lens fixing structure allows the lens fixing structure to be fixed to the camera housing by a relatively small number of fixing members, which is beneficial to further reduce the space required for arranging the lens fixing structure.

[0055] In some examples, the lens assembly surface 110 has a boss structure 130, and the lens assembly hole 140 is located at the boss structure 130. In this way, the matching area between the hole wall of the lens assembly hole 140 and the side wall of the lens 200 can be increased, so that the stability of the lens 200 assembled in the lens assembly hole 140 can be better.

[0056] Exemplarily, the boss structure 130 is a columnar structure coaxial with the lens assembly hole 140. For example, the boss structure 130 can be a cylindrical structure coaxial with the lens assembly hole 140.

[0057] Figure 4 A schematic diagram of a clamping member of a lens fixing structure provided in an embodiment of the present application from one viewing angle, Figure 5 for Figure 4 A schematic diagram of another perspective of the clamping member of the lens fixing structure provided in FIG.

[0058] like Figure 4 , Figure 5 As shown, and see Figure 1-Figure 3In some possible implementations, the clamping member 300 includes a support portion 310 and a plurality of clips 320 that are equally spaced and distributed along the circumference of the lens assembly hole 140. One end of the support portion 310 in the first direction is fixedly disposed on the lens assembly surface 110, and the clip 320 is fixedly connected to the other end of the support portion 310 in the first direction. The hoop 400 is sleeved on the outside of the clip 320, and the hoop 400 holds the clip 320 tightly so that the clip 320 is elastically deformed in the direction of the central axis of the lens assembly hole 140. The plurality of clips 320 that are elastically deformed in the direction of the central axis of the lens assembly hole 140 are used to clamp and fix the lens 200.

[0059] In this way, the clamping piece 300 is more likely to be elastically deformed at the clip 320, which makes it easier for the clamping hoop 400 to clamp the lens 200 through the clamping piece 300, and also makes it easier for the clamping piece 300 to loosen the lens 200 after the clamping hoop 400 is removed. The plurality of clips 320 are evenly spaced along the circumference of the lens assembly hole 140, and the sides of the lens 200 are clamped more evenly, so that the coaxiality of the lens 200 and the lens assembly hole 140 is better.

[0060] The space enclosed by all the clips 320 is coaxial with the lens assembly hole 140 .

[0061] Exemplarily, the clip 320 and the support portion 310 are an integral structure.

[0062] In some possible implementations, the clip 320 includes a connecting section 321 and a clamping section 322. One end of the connecting section 321 in the first direction is connected to the clamping section 322, and the other end of the connecting section 321 in the first direction is connected to the supporting portion 310. The clamping sections 322 of the plurality of clips 320 are used to clamp and fix the lens 200. In the circumferential direction of the lens assembly hole 140, the size of the connecting section 321 is smaller than the size of the clamping section 322, and the connecting section 321 is located between the two ends of the clamping section 322.

[0063] In this way, it is easier for the clip 320 to be elastically deformed. In addition, the size of the portion of the clip 320 used to clamp the lens 200 is larger, so the clamping of the lens 200 is more stable.

[0064] The connecting section 321 and the clamping section 322 have the same size in the radial direction of the lens mounting hole 140 .

[0065] Exemplarily, the connecting section 321 and the clamping section 322 are an integral structure.

[0066] Exemplarily, the connecting section 321 and the supporting portion 310 are an integral structure.

[0067] Exemplarily, all the clips 320 and the gaps between two adjacent clips 320 form a cylindrical structure.

[0068] A first strip-shaped gap with two ends extending along the first direction is provided between the clamping sections 322 of the two connected clips 320, and a second strip-shaped gap with two ends extending along the circumferential direction of the lens assembly hole 140 is provided between the connecting sections 321 of the two adjacent clips 320. The upper end of the first strip-shaped gap between the two adjacent clips 320 passes through the clamping piece 300, and the lower end of the first strip-shaped gap between the two adjacent clips 320 is connected to the middle of the second strip-shaped gap between the two adjacent clips 320.

[0069] In some possible implementations, the support portion 310 includes an abutment plate 311, the abutment plate 311 is perpendicular to the first direction, the abutment plate 311 is located at one end of the support portion 310 away from the lens mounting surface 110, and the clip 320 is fixedly connected to the abutment plate 311. The hoop 400 is located at a side of the abutment plate 311 away from the lens mounting surface 110, and the surface of the abutment plate 311 away from the lens mounting surface 110 is used to abut against the hoop 400.

[0070] In this way, the clamp 400 can be positioned by the abutment plate 311 so as to be arranged at the clamp 320. In addition, by abutting against the abutment plate 311, the loosened clamp 400 is not likely to affect the focusing of the lens 200.

[0071] The abutting plate 311 has a first communicating hole for the lens 200 to pass through, and the clip 320 is disposed at the edge of the first communicating hole. The first communicating hole is coaxial with the lens assembly hole 140 .

[0072] In some possible implementations, the support portion 310 further includes a sleeve 312, one end of the sleeve 312 in the first direction is connected to the abutment plate 311, the other end of the sleeve 312 in the first direction is fixedly disposed on the lens mounting surface 110, the sleeve 312 and the abutment plate 311 are an integral structure, and the abutment plate 311 and the clip 320 are an integral structure. The sleeve 312 has notches 3121 on both sides in the second direction, and the notches 3121 communicate the inner cavity of the sleeve 312 with the outer side of the sleeve 312.

[0073] In this way, the notches 3121 on both sides of the sleeve 312 in the second direction are conducive to increasing the deformation of the sleeve 312 when the clamp 400 clamps the clip 320. When the deformation of the clip 320 is insufficient, it can be supplemented by the deformation of the sleeve 312, which is conducive to clamping and fixing the lens 200.

[0074] The sleeve 312 is coaxial with the lens mounting hole 140 .

[0075] The abutting plate 311 and the connecting section 321 of the clip 320 are an integral structure.

[0076] When the lens mounting surface 110 has a boss structure 130 , the sleeve 312 is sleeved on the outer side of the boss structure 130 , and the boss structure 130 is located between the abutting plate 311 and the lens mounting surface 110 .

[0077] Illustratively, the sleeve 312 is in contact with the outer edge of the abutment plate 311 .

[0078] In some possible implementations, the support portion 310 further includes a connecting plate 313 , one end of the sleeve 312 facing away from the abutting plate 311 is fixedly connected to the connecting plate 313 , and the connecting plate 313 is fixedly connected to the lens mounting surface 110 via a fastener 500 .

[0079] In this way, it is easy to achieve fixed connection between the clamping member 300 and the lens mounting surface 110, and the size of the clamping member 300 can be made smaller.

[0080] The connecting plate 313 has a second communicating hole for the lens 200 to pass through, and the sleeve 312 is disposed at the edge of the second communicating hole. The second communicating hole is coaxial with the lens assembly hole 140 .

[0081] For example, the fastener 500 may include, but is not limited to, a screw, a rivet, and the like.

[0082] Exemplarily, the sleeve 312 and the connecting plate 313 are an integral structure.

[0083] Exemplarily, the portions of the connecting plate 313 located on both sides of the sleeve 312 in the second direction are fixedly connected to the lens mounting surface 110 via fasteners 500. In this way, the connecting plate 313 and the lens mounting surface 110 can be fixed more firmly.

[0084] In some possible implementations, the notch 3121 extends to the connecting plate 313 , and a portion of the fastener 500 is located in the notch 3121 .

[0085] In this way, the notch 3121 can be used to avoid the fastener 500, and a portion of the fastener 500 is located in the notch 3121, which can make the lens fixing structure more compact and help reduce the size of the lens fixing structure.

[0086] Exemplarily, the notch 3121 extends to the abutment plate 311 so that the sleeve 312 can undergo a greater deformation.

[0087] In some examples, portions of the connecting plate 313 on both sides of the sleeve 312 in the second direction are fixedly connected to the lens mounting surface 110 via fasteners 500 , and the fasteners 500 on both sides of the sleeve 312 in the second direction are partially located in the notch 3121 .

[0088] In some possible implementations, the projection of the fastener 500 along the first direction is located outside the projection of the abutment plate 311 along the first direction. In this way, the operation of connecting the connection plate 313 to the lens mounting surface 110 through the fastener 500 is more convenient.

[0089] In some possible implementations, the support portion 310 further includes a connection block 314. The connection block 314 is fixedly connected to the sleeve 312, the connection block 314 is located between the abutment plate 311 and the lens mounting surface 110, and the connection block 314 is located to the side of the notch 3121 in the third direction. The connection block 314 has a first connection surface 3141 facing the second direction, the carrier 100 has a second connection surface 120 facing the second direction, and the first connection surface 3141 is coplanar with the second connection surface 120. The first connection surface 3141 has a first threaded hole 3142, and the second connection surface 120 has a second threaded hole 150.

[0090] In this way, the lens fixing structure can be fixed to the camera housing through the first threaded hole 3142 and the second threaded hole 150, so that the carrier 100 and the clamping member 300 of the lens fixing structure fixed to the camera housing are both fixed more firmly.

[0091] The lens fixing structure can be fixed to the housing of the camera by means of screws inserted into the first threaded hole 3142 and the second threaded hole 150 .

[0092] Exemplarily, both sides of the notch 3121 in the third direction have connecting blocks 314 , and both first connecting surfaces 3141 of the two connecting blocks 314 have first threaded holes 3142 .

[0093] Exemplarily, the second connection surface 120 has two second threaded holes 150 spaced apart from each other along the third direction.

[0094] Exemplarily, the second connecting surface 120 further has a positioning hole 160 to facilitate the positioning of the lens fixing structure on the housing of the camera.

[0095] Exemplarily, the positioning hole 160 is a bar-shaped hole.

[0096] Exemplarily, the positioning hole 160 is located between the two second threaded holes 150 .

[0097] Exemplarily, the connecting plate 313, the sleeve 312, the abutting plate 311, the clip 320 and the connecting block 314 are an integrated structure.

[0098] In some possible implementations, the clamping member 300 may be made of 304 stainless steel. That is, the connecting plate 313, the sleeve 312, the abutting plate 311, the clip 320 and the connecting block 314 are all made of 304 stainless steel. In this way, the thermal expansion coefficient of the clamping member 300 is small, and the influence of temperature change on the clamping of the clamping member 300 is small. In addition, the rigidity of the clamping member 300 is high, so that the clamping member 300 can clamp the lens 200 more stably.

[0099] In other examples, the clamp 300 may also be made of aluminum alloy.

[0100] Figure 6 A schematic diagram of a clamp of a lens fixing structure provided in an embodiment of the present application.

[0101] like Figure 6 As shown, and see Figure 1-Figure 3 In some possible implementations, the hoop 400 includes a first arcuate hoop plate portion 410, a second arcuate hoop plate portion 420, and a hoop plate connecting portion 430. One end of the first arcuate hoop plate portion 410 is connected to one end of the second arcuate hoop plate portion 420 through the hoop plate connecting portion 430, the first arcuate hoop plate portion 410 and the hoop plate connecting portion 430 are an integral structure, the second arcuate hoop plate portion 420 and the hoop plate connecting portion 430 are an integral structure, and the other end of the first arcuate hoop plate portion 410 is used to be locked with the other end of the second arcuate hoop plate portion 420 through a locking structure, so that the first arcuate hoop plate portion 410 and the second arcuate hoop plate portion 420 hold the clamping member 300 tightly.

[0102] In this way, the coaxiality of the first arc-shaped hoop plate portion 410 and the second arc-shaped hoop plate portion 420 can be better. When the hoop 400 clamps the lens 200 through the clamping member 300, the force on each side of the lens 200 can be more evenly applied, which is beneficial to improving the coaxiality of the lens 200 and the lens assembly hole 140.

[0103] In some possible implementations, the hoop plate connecting portion 430 has an inner side surface facing the clamping member 300 , and the inner side surface has a groove 431 , and the groove 431 penetrates the hoop plate connecting portion 430 along the first direction.

[0104] In this way, the first arc-shaped hoop plate portion 410 and the second arc-shaped hoop plate portion 420 are easily deformed, which is beneficial to increase the opening and closing degree of the first arc-shaped hoop plate and the second arc-shaped hoop plate, and is beneficial to clamping and loosening the clamping member 300.

[0105] In some possible implementations, the locking structure includes a first connecting ear plate portion 440 connected to the first arc-shaped hoop plate portion 410, a second connecting ear plate portion 450 connected to the second arc-shaped hoop plate portion 420, and a locking member 460. The first connecting ear plate portion 440 has a first connecting hole 441, the second connecting ear plate portion 450 has a second connecting hole 451, the locking member 460 is inserted into the first connecting hole 441 and the second connecting hole 451, and the first connecting ear plate portion 440 and the second connecting ear plate portion 450 are locked and fixed by the locking member 460.

[0106] In this way, the first arc-shaped hoop plate portion 410 and the second arc-shaped hoop plate portion 420 can be opened to a greater extent, and it is more convenient to sleeve the hoop 400 on the outside of the clamping member 300. In addition, the structure of the hoop 400 is also relatively simple.

[0107] Exemplarily, the first connecting ear plate portion 440 and the first arc-shaped hoop plate portion 410 are an integral structure, and the second connecting ear plate portion 450 and the second arc-shaped hoop plate portion 420 are an integral structure.

[0108] Exemplarily, the locking member 460 is a bolt connector. For example, the locking member 460 can be a bolt. In this way, it is convenient to adjust the tightness of the clamp 400.

[0109] Exemplarily, the first connecting hole 441 is a threaded hole, and the locking member 460 is threadedly connected to the first connecting hole 441 .

[0110] Exemplarily, the clamp 400 further includes a locking nut, the first connecting ear plate portion 440 is located between the locking nut and the second connecting ear plate portion 450, and the locking member 460 is threadedly connected to the locking nut.

[0111] In some possible implementations, the clamp 400 may be made of 304 stainless steel.

[0112] In this way, the thermal expansion coefficient of the clamp 400 is small, and the temperature change has little effect on the clamping of the clamp 400. In addition, the rigidity of the clamp 400 is high, so that the clamp 400 can hold the clamp 300 more stably.

[0113] In some other examples, the clamp 400 may also be made of aluminum alloy.

[0114] In some other possible implementations, both ends of the first arc-shaped hoop plate portion 410 and the second arc-shaped hoop plate portion 420 may also be connected via a locking structure.

[0115] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A lens fixing structure, characterized in that: It includes a bearing part, a lens, a clamping part and a clamp; The carrier has a lens mounting surface, the lens mounting surface is located at one side of the carrier in the first direction, the lens mounting surface has a lens mounting hole, and the lens is mounted in the lens mounting hole in a manner that it can move along the first direction; The clamping member is sleeved on the outside of the lens, the clamping member is fixedly arranged on the lens mounting surface, the inner cavity surrounded by the clamping member is coaxial with the lens mounting hole, the clamping hoop is sleeved on the outside of the clamping member, the clamping hoop clamps the clamping member so that the clamping member is elastically deformed in the direction of the central axis of the lens mounting hole, and the clamping member elastically deformed in the direction of the central axis of the lens mounting hole is used to clamp and fix the lens; Wherein, the first direction is the axial direction of the lens assembly hole.

2. The lens fixing structure according to claim 1, characterized in that: The clamping member comprises a supporting portion and a plurality of clips distributed at equal intervals along the circumference of the lens assembly hole; One end of the support portion in the first direction is fixedly arranged on the lens mounting surface, and the clip is fixedly connected to the other end of the support portion in the first direction; The clamp is sleeved on the outside of the clip, and the clamp holds the clip tightly so that the clip is elastically deformed in the direction of the central axis of the lens mounting hole. The multiple clips that are elastically deformed in the direction of the central axis of the lens mounting hole are used to clamp and fix the lens.

3. The lens fixing structure according to claim 2, characterized in that: The clip includes a connecting section and a clamping section; One end of the connecting section in the first direction is connected to the clamping section, and the other end of the connecting section in the first direction is connected to the supporting portion; In the circumferential direction of the lens assembly hole, the size of the connecting section is smaller than the size of the clamping section, and the connecting section is located between the two ends of the clamping section.

4. The lens fixing structure according to claim 2, characterized in that: The support portion comprises an abutment plate, the abutment plate is perpendicular to the first direction, the abutment plate is located at one end of the support portion away from the lens mounting surface, and the clip is fixedly connected to the abutment plate; The hoop is located at a side of the abutment plate away from the lens mounting surface, and a surface of the abutment plate away from the lens mounting surface is used for abutting against the hoop.

5. The lens fixing structure according to claim 4, characterized in that: The support portion further includes a sleeve; One end of the sleeve in the first direction is connected to the abutment plate, and the other end of the sleeve in the first direction is fixedly arranged on the lens mounting surface, the sleeve and the abutment plate are an integral structure, and the abutment plate and the clip are an integral structure; The sleeve has notches on both sides in the second direction, and the notches communicate the inner cavity of the sleeve with the outer side of the sleeve; The second direction is perpendicular to the first direction.

6. The lens fixing structure according to claim 5, characterized in that: The support portion further comprises a connecting plate, and one end of the sleeve facing away from the abutting plate is fixedly connected to the connecting plate, and the connecting plate is fixedly connected to the lens mounting surface via a fastener.

7. The lens fixing structure according to claim 6, characterized in that: The notch extends to the connecting plate, and a portion of the fastener is located in the notch.

8. The lens fixing structure according to claim 7, characterized in that: A projection of the fastener along the first direction is located outside a projection of the abutment plate along the first direction.

9. The lens fixing structure according to claim 5, characterized in that: The support portion further includes a connecting block; The connecting block is fixedly connected to the sleeve, the connecting block is located between the abutting plate and the lens mounting surface, and the connecting block is located on the side of the notch in the third direction; The connecting block has a first connecting surface facing a second direction, the bearing member has a second connecting surface facing the second direction, and the first connecting surface is coplanar with the second connecting surface; The first connecting surface has a first threaded hole, and the second connecting surface has a second threaded hole; The third direction is perpendicular to the first direction, and the third direction is perpendicular to the second direction.

10. The lens fixing structure according to any one of claims 1 to 9, characterized in that: The hoop comprises a first arc-shaped hoop plate portion, a second arc-shaped hoop plate portion and a hoop plate connecting portion; One end of the first arcuate hoop plate portion is connected to one end of the second arcuate hoop plate portion through the hoop plate connecting portion, the first arcuate hoop plate portion and the hoop plate connecting portion are an integral structure, the second arcuate hoop plate portion and the hoop plate connecting portion are an integral structure, and the other end of the first arcuate hoop plate portion is used to lock with the other end of the second arcuate hoop plate portion through a locking structure, so that the first arcuate hoop plate portion and the second arcuate hoop plate portion hold the clamping member tightly.

11. The lens fixing structure according to claim 10, characterized in that: The hoop plate connecting portion has an inner side surface facing the clamping member, the inner side surface has a groove, and the groove penetrates the hoop plate connecting portion along the first direction.

12. The lens fixing structure according to claim 10, characterized in that: The locking structure comprises a first connecting ear plate portion connected to the first arc-shaped hoop plate portion, a second connecting ear plate portion connected to the second arc-shaped hoop plate portion, and a locking member; The first connecting ear plate portion has a first connecting hole, the second connecting ear plate portion has a second connecting hole, the locking member is inserted into the first connecting hole and the second connecting hole, and the first connecting ear plate portion and the second connecting ear plate portion are locked and fixed by the locking member.

13. A camera, characterized in that: It comprises a lens fixing structure as described in any one of claims 1-12.

Images