Lens barrel structure and optical lens having same
By designing the bearing annular and pore structure perpendicular to the central axis of the optical lens on the barrel structure of the optical lens, a ventilation zone is formed, which solves the problem of poor stability of the optical lens structure and realizes the balance and performance of the air pressure inside and outside the optical lens. promote.
Patent Information
- Application Number
- CN202420122607.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-17
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-01-17
AI Technical Summary
The existing optical lens has poor stability, which leads to unbalanced internal and external air pressure when the external air pressure changes, affecting lens performance.
A lens barrel structure is designed, the inner wall surface has a bearing annular surface perpendicular to the central axis of the lens barrel, and includes a pore structure. The pore structure supports the lens and forms a ventilation area. The maximum depth of the ventilation area along the central axis of the lens barrel is Between 0.003mm and 0.015mm, ensure balance between the inside and outside air pressure of the optical lens.
Through the design of the pore structure, the assembly stability of the lens and the performance of the optical lens are ensured, the barrel structure or lens deformation is avoided, and the optical performance and quality of the optical lens are improved.
Smart Images
Figure CN222337382U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of imaging equipment, in particular to a lens barrel structure and an optical lens having the same. Background Art
[0002] After nearly a decade of rapid development, consumers have increasingly diversified functional demands for smart terminals represented by smartphones, and the application scenarios of smart terminals are increasing, and the use environment is becoming more and more demanding. As a window for smart terminal products to connect with the outside world, optical lenses must pass the test of various extreme environments, and extreme working conditions will affect the optical performance of the lens. Especially when the external air pressure changes, the imbalance of the internal and external air pressure of the optical lens leads to internal structural variations, causing significant changes in the performance of the optical lens, which seriously affects the consumer's experience.
[0003] That is to say, the optical lens in the prior art has the problem of poor structural stability. Utility Model Content
[0004] The main purpose of the utility model is to provide a lens barrel structure and an optical lens having the same, so as to solve the problem of poor stability of the optical lens structure in the prior art.
[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a lens barrel structure is provided, wherein the inner wall surface of the lens barrel structure is provided with a supporting annular surface for supporting a first lens, the supporting annular surface is arranged perpendicular to the central axis of the lens barrel structure, the supporting annular surface is provided with at least one pore structure, at least a part of the pore structure is supported by the first lens, and at least another part of the pore structure is spaced apart from the first lens to form a ventilation area, the ventilation area extends to the outer ring of the supporting annular surface and the inner ring of the supporting annular surface, and the maximum depth V of the ventilation area along the central axis direction of the lens barrel structure satisfies: 0.003mm≤V≤0.015mm.
[0006] Furthermore, the supporting annular surface is provided with a plurality of pore structures, and the surface roughness Ra of the pore structures satisfies: 0.05 μm≤Ra≤0.5 μm.
[0007] Furthermore, the supporting annular surface is provided with a pore structure, which extends along the circumference of the supporting annular surface, and the pore structure includes a plurality of supporting protrusions, the plurality of supporting protrusions are arranged at intervals, the supporting protrusions bear against the object side surface of the first lens, the supporting protrusions are arranged at intervals against the outer ring of the supporting annular surface, so that the outer ring of the supporting annular surface is entirely located in the ventilation area; and / or the supporting protrusions are arranged at intervals against the inner ring of the supporting annular surface, so that the inner ring of the supporting annular surface is entirely located in the ventilation area.
[0008] Furthermore, a protrusion height H of the supporting protrusion relative to the ventilation area satisfies: 0.005mm≤H≤0.015mm.
[0009] Furthermore, the number N of the supporting protrusions satisfies: 4 <N<100。
[0010] Furthermore, the radial length L of the bearing annular surface satisfies: 0.25 mm ≤ L ≤ 0.7 mm.
[0011] Furthermore, the length B of the projection of the bearing protrusion on the bearing annular surface along the radial direction of the bearing annular surface and the radial length L of the bearing annular surface satisfy the following relationship: 1 / 4L <B<2 / 3L。
[0012] Furthermore, the bearing annular surface is provided with a pore structure, which extends along the circumference of the bearing annular surface. The pore structure includes at least one slot structure, which penetrates the bearing annular surface in the radial direction of the bearing annular surface. When there are multiple slot structures, the multiple slot structures are arranged at intervals along the circumference of the bearing annular surface.
[0013] Furthermore, the groove wall surface of the groove structure is arranged parallel to the radial direction of the supporting annular surface, and the groove width T of the groove structure satisfies: 0.03mm≤T≤0.07mm.
[0014] Furthermore, the groove width of the groove structure gradually increases in a direction away from the central axis of the lens barrel structure, and the angle α between two groove walls of the groove structure satisfies: 3°≤α≤10°.
[0015] Furthermore, the number M of the slotted structures satisfies: 1≤M≤100.
[0016] According to another aspect of the present invention, an optical lens is provided, comprising the above-mentioned lens barrel structure and a lens group.
[0017] By applying the technical solution of the present application, a supporting annular surface for supporting a first lens is provided on the inner wall surface of the lens barrel structure, the supporting annular surface is arranged perpendicular to the central axis of the lens barrel structure, at least one pore structure is provided on the supporting annular surface, at least a portion of the pore structure supports the first lens, at least another portion of the pore structure is spaced apart from the first lens to form a ventilation zone, the ventilation zone extends to an outer ring of the supporting annular surface and an inner ring of the supporting annular surface, and a maximum depth V of the ventilation zone along the central axis direction of the lens barrel structure satisfies: 0.003mm≤V≤0.015mm.
[0018] By arranging at least one air hole structure on the supporting annular surface, at least a part of the air hole structure is supported by the first lens, so that the assembly stability of the first lens can be guaranteed, and the performance of the optical lens can be guaranteed to be stable. At least another part of the air hole structure is arranged at a distance from the first lens, and penetrates the outer ring and the inner ring of the supporting annular surface to form a ventilation area, connecting the inner and outer parts of the optical lens, so that the air pressure inside and outside the optical lens is balanced, thereby avoiding deformation of the lens barrel structure or the lens, improving the optical performance of the optical lens, and improving the optical quality of the optical lens. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:
[0020] Figure 1 A partial structural schematic diagram of an optical lens according to a first embodiment of the present utility model is shown;
[0021] Figure 2 Shows Figure 1 An enlarged schematic diagram of part A in FIG.
[0022] Figure 3 Shows Figure 2 A partial structural diagram of the lens barrel structure in FIG.
[0023] Figure 4 A partial structural schematic diagram of an optical lens according to a second embodiment of the present utility model is shown;
[0024] Figure 5 Shows Figure 4 An enlarged schematic diagram of part D in FIG.
[0025] Figure 6 Shows Figure 4 Schematic diagram of some parameters of the lens barrel structure;
[0026] Figure 7 Shows Figure 4 A schematic diagram of the lens barrel structure at one angle;
[0027] Figure 8 Shows Figure 4 Schematic diagram of another part of the parameters of the lens barrel structure;
[0028] Fig. 9 A partial structural schematic diagram of an optical lens according to a third embodiment of the present utility model is shown;
[0029] Fig.10 Shows Fig. 9 An enlarged schematic diagram of part C in FIG.
[0030] Fig.11 Shows Fig. 9 Schematic diagram of some parameters of the lens barrel structure;
[0031] Fig.12 Shows Fig. 9 A schematic diagram of the lens barrel structure at one angle;
[0032] Fig.13 Shows Fig. 9Schematic diagram of another part of the parameters of the lens barrel structure;
[0033] Fig.14 A schematic diagram showing an angle of the lens barrel structure of the fourth embodiment of the utility model;
[0034] Fig.15 Shows Fig.14 Schematic diagram of some parameters of the lens barrel structure.
[0035] The above drawings include the following reference numerals:
[0036] 10. Supporting annular surface; 11. Supporting protrusion; 12. Grooved structure; 20. First lens; 30. Ventilation area. DETAILED DESCRIPTION
[0037] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0038] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.
[0039] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.
[0040] In order to solve the problem of poor structural stability of an optical lens in the prior art, the utility model provides a lens barrel structure and an optical lens having the same.
[0041] like Figures 1 to 15 As shown, the inner wall surface of the lens barrel structure is provided with a supporting annular surface 10 for supporting the first lens 20, the supporting annular surface 10 is arranged perpendicular to the central axis of the lens barrel structure, and at least one pore structure is provided on the supporting annular surface 10, at least a part of the pore structure is supported by the first lens 20, and at least another part of the pore structure is spaced apart from the first lens 20 to form a ventilation area 30, the ventilation area 30 extends to the outer ring of the supporting annular surface 10 and the inner ring of the supporting annular surface 10, and the maximum depth V of the ventilation area 30 along the central axis direction of the lens barrel structure satisfies: 0.003mm≤V≤0.015mm.
[0042] By providing at least one pore structure on the supporting annular surface 10, at least a part of the pore structure is supported by the first lens 20, so that the assembly stability of the first lens 20 can be ensured, and the performance of the optical lens can be ensured to be stable. At least another part of the pore structure is spaced apart from the first lens 20, and passes through the outer ring and the inner ring of the supporting annular surface 10 to form a ventilation area 30, connecting the inner and outer parts of the optical lens, so that the air pressure inside and outside the optical lens is balanced, thereby avoiding deformation of the lens barrel structure or the lens, improving the optical performance of the optical lens, and improving the optical quality of the optical lens.
[0043] By limiting the maximum depth V of the ventilation area 30 within a reasonable range, the effect of air escape can be ensured, and at the same time, the ratio of the maximum depth V of the ventilation area 30 to the top surface thickness of the lens barrel structure is ensured, which is helpful for the formation of the lens barrel structure. If the maximum depth V is too small, the air flow effect will be affected, the internal and external air pressure will be balanced slowly, and the risk of deformation of the lens barrel structure or lens will increase. If the maximum depth V exceeds the upper limit, in extreme cases, water vapor is easy to enter the optical lens, which will have an adverse effect on the imaging effect of the optical lens.
[0044] The utility model also provides an optical lens, comprising the above-mentioned lens barrel structure and a lens group, wherein the lens group comprises a first lens supported by the lens barrel structure from the object side to the image side of the optical lens.
[0045] Embodiment 1
[0046] like Figures 1 to 3 As shown, the supporting annular surface 10 has a plurality of pore structures, and the surface roughness Ra of the pore structure satisfies: 0.05μm≤Ra≤0.5μm. After the lens is assembled, due to the relatively rough pore structure, there is a small gap between the lens barrel structure and the first lens 20, and the air pressure inside and outside the optical lens is connected through the gap, thereby improving the optical performance of the optical lens when the external pressure is increased.
[0047] Optionally, the supporting annular surface 10 is subjected to laser atomization or discharge treatment to form a pore structure.
[0048] It should be noted that the surface roughness of the multiple pore structures may be the same or different, as long as the internal and external air pressure balance of the optical lens can be achieved.
[0049] Embodiment 2
[0050] like Figures 4 to 8 As shown, the difference from the first embodiment is that the number and structural arrangement of the pore structures are different.
[0051] like Figure 7As shown, there is a pore structure on the bearing ring surface 10. The pore structure extends circumferentially along the bearing ring surface 10. The pore structure includes a plurality of bearing protrusions 11. The plurality of bearing protrusions 11 are arranged at intervals. The bearing protrusions 11 bear against the object side surface of the first lens 20. Such a setting can ensure that along the circumferential direction of the bearing ring surface 10, there are bearing protrusions 11 that can ensure the stable bearing of the first lens 20 and communication positions that balance the air pressure inside and outside the optical lens.
[0052] Optionally, the bearing protrusions 11 are arranged at intervals from the outer ring of the bearing ring surface 10, so that the outer ring of the bearing ring surface 10 is entirely located in the ventilation area 30. This can improve the ventilation efficiency inside and outside the optical lens and further reduce the risk of deformation of the lens barrel structure or the lens.
[0053] Of course, it is also possible to choose to arrange the bearing protrusions 11 at intervals from the inner ring of the bearing ring surface 10, so that the inner ring of the bearing ring surface 10 is entirely located in the ventilation area 30. Such a setting is more conducive to avoiding excessive external water vapor from entering the optical lens, while improving the ventilation efficiency and ensuring the optical performance of the optical lens.
[0054] Specifically, the protrusion height H of the bearing protrusion 11 relative to the ventilation area 30 satisfies: 0.005mm ≤ H ≤ 0.015mm. If the protrusion height H is too large, it is easy to cause water vapor to enter the optical lens, affecting imaging, and it is also easy to cause problems such as unstable assembly; if the protrusion height H is too small, it may affect the balance effect of the internal and external air pressures. By limiting the protrusion height H of the bearing protrusion 11 within a reasonable range, it is beneficial to ensure the processing and forming of the pore structure, and further ensure the structural strength and ventilation efficiency of the lens barrel structure.
[0055] Specifically, the number N of the bearing protrusions 11 satisfies: 4 < N < 100, which is beneficial to ensure stable assembly while improving the ventilation effect.
[0056] Specifically, the radial length L of the bearing ring surface 10 satisfies: 0.25mm ≤ L ≤ 0.7mm. Controlling the radial length L of the bearing ring surface 10 within a reasonable range can control the head size of the lens barrel structure while ensuring stable assembly, and ensure the structural strength of the lens barrel structure.
[0057] Specifically, the length B of the projection of the bearing protrusion 11 on the bearing ring surface 10 along the radial direction of the bearing ring surface 10 and the radial length L of the bearing ring surface 10 satisfy: 1 / 4L < B < 2 / 3L. By limiting the relationship between B and L within a reasonable range, it is beneficial to the processing and forming of the pore structure. The bearing protrusion 11 can have sufficient structural strength to support the first lens 20 while ensuring the ventilation effect of the ventilation area 30.
[0058] Optionally, the projection shape of the supporting protrusion 11 on the supporting annular surface 10 includes one of a circle and a square, which can be flexibly selected according to the needs of processing and forming.
[0059] Specifically, the projection shape of the supporting protrusion 11 of this embodiment on the supporting annular surface 10 is circular, and a plurality of supporting protrusions 11 are arranged at equal intervals along the circumference of the supporting annular surface 10. Some parameters of the lens barrel structure are shown in Table 1.
[0060] parameter N L B H data 6 0.44mm 0.26mm 0.01mm
[0061] Table 1
[0062] Embodiment 3
[0063] like Figures 9 to 13 As shown, the difference from the second embodiment is that the structural arrangement of the pore structure is different.
[0064] like Fig.12 As shown, the bearing annular surface 10 has a pore structure, which extends along the circumference of the bearing annular surface 10. The pore structure includes at least one slotted structure 12, which penetrates the bearing annular surface 10 in the radial direction of the bearing annular surface 10. When there are multiple slotted structures 12, the multiple slotted structures 12 are arranged at intervals along the circumference of the bearing annular surface 10. When the external air pressure is increased, the performance of the optical lens will be affected. Through the slotted bearing surface or the bearing gap between the lens barrel and the first lens, the internal and external air pressures are connected, so that the air pressure inside and outside the optical lens is balanced, thereby improving the optical performance of the optical lens and improving the optical quality.
[0065] Optionally, the number M of the slotted structures 12 satisfies: 1≤M≤100.
[0066] Specifically, the groove wall surface of the groove structure 12 is arranged parallel to the radial direction of the supporting annular surface 10, and the groove width T of the groove structure 12 satisfies: 0.03mm≤T≤0.07mm. By limiting the groove width T of the groove structure 12, the reliability of connecting the internal and external air pressures of the optical lens is ensured, and the assembly and support of the lens barrel structure and the first lens 20 are not affected. At the same time, limiting the groove width T is conducive to the molding and mold separation of the lens barrel structure.
[0067] That is to say, the slotted structure 12 in this embodiment is in the form of a straight slot. Specifically, the number M of slots is 8, the maximum depth V of the ventilation area 30 along the central axis of the lens barrel structure is 0.01 mm, and the slot width T of the slotted structure 12 is 0.04 mm.
[0068] Embodiment 4
[0069] like Fig.14 and Fig.15 As shown, the difference from the third embodiment is that the shape of the slot structure 12 is different.
[0070] Specifically, the groove width of the groove structure 12 gradually increases in the direction away from the central axis of the lens barrel structure, and the angle α between the two groove walls of the groove structure 12 satisfies: 3°≤α≤10°. By limiting the size of the angle α within a reasonable range, the ventilation effect is improved while reducing the risk of water vapor entering the interior of the optical lens.
[0071] That is to say, the slotted structure 12 of the present embodiment is in the form of fan-shaped slots. Specifically, the number M of the slots is 4, and the maximum depth V of the ventilation area 30 along the central axis direction of the lens barrel structure is 0.005 mm.
[0072] From the above description, it can be seen that the above embodiments of the utility model achieve the following technical effects:
[0073] 1. By providing at least one pore structure on the supporting annular surface 10, at least a part of the pore structure is supported by the first lens 20, so that the assembly stability of the first lens 20 can be ensured, and the performance stability of the optical lens can be ensured.
[0074] 2. At least another part of the air hole structure is spaced apart from the first lens 20, and penetrates the outer ring and the inner ring of the supporting annular surface 10 to form a ventilation area 30, connecting the inner and outer parts of the optical lens, so that the air pressure inside and outside the optical lens is balanced, thereby avoiding deformation of the lens barrel structure or the lens, improving the optical performance of the optical lens, and improving the optical quality of the optical lens.
[0075] 3. By limiting the maximum depth V of the ventilation area 30 within a reasonable range, the effect of air escape can be ensured, and at the same time, the ratio of the maximum depth V of the ventilation area 30 to the thickness of the top surface of the lens barrel structure is ensured, which is conducive to the formation of the lens barrel structure. If the maximum depth V is too small, the air flow effect will be affected, the internal and external air pressure will be balanced slowly, and the risk of deformation of the lens barrel structure or lens will increase. If the maximum depth V exceeds the upper limit, in extreme cases, water vapor will easily enter the optical lens, which will have an adverse effect on the imaging effect of the optical lens.
[0076] Obviously, the embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.
[0077] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.
[0078] It should be noted that the terms "first", "second", etc. in the specification and claims of the present 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 present application described herein can be implemented in an order other than those illustrated or described herein.
[0079] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A lens barrel structure, characterized in that: The inner wall surface of the lens barrel structure is provided with a supporting annular surface (10) for supporting a first lens (20), the supporting annular surface (10) being arranged perpendicular to the central axis of the lens barrel structure, the supporting annular surface (10) being provided with at least one pore structure, at least a portion of the pore structure being supported by the first lens (20), at least another portion of the pore structure being spaced apart from the first lens (20) to form a ventilation area (30), the ventilation area (30) extending to an outer ring of the supporting annular surface (10) and an inner ring of the supporting annular surface (10), and a maximum depth V of the ventilation area (30) along the central axis direction of the lens barrel structure satisfies: 0.003 mm ≤ V ≤ 0.015 mm.
2. The lens barrel structure according to claim 1, characterized in that: The bearing annular surface (10) is provided with a plurality of pore structures, and the surface roughness Ra of the pore structures satisfies: 0.05 μm≤Ra≤0.5 μm.
3. The lens barrel structure according to claim 1, characterized in that: The supporting annular surface (10) has a pore structure, the pore structure extends along the circumference of the supporting annular surface (10), the pore structure comprises a plurality of supporting protrusions (11), the plurality of supporting protrusions (11) are arranged at intervals, the supporting protrusions (11) are in contact with the object side surface of the first lens (20), The supporting protrusion (11) is spaced apart from the outer ring of the supporting annular surface (10), so that the outer ring of the supporting annular surface (10) is entirely located within the ventilation area (30); and / or The supporting protrusion (11) and the inner ring of the supporting annular surface (10) are arranged at intervals, so that the inner ring of the supporting annular surface (10) is entirely located within the ventilation area (30).
4. The lens barrel structure according to claim 3, characterized in that: A protrusion height H of the supporting protrusion (11) relative to the ventilation area (30) satisfies: 0.005 mm≤H≤0.015 mm.
5. The lens barrel structure according to claim 3, characterized in that: The number N of the supporting protrusions (11) satisfies: 4 <N<100。 6. The lens barrel structure according to claim 3, characterized in that: The radial length L of the bearing annular surface (10) satisfies: 0.25 mm ≤ L ≤ 0.7 mm.
7. The lens barrel structure according to claim 3, characterized in that: The length B of the projection of the supporting protrusion (11) on the supporting annular surface (10) in the radial direction of the supporting annular surface (10) and the radial length L of the supporting annular surface (10) satisfy the following relationship: 1 / 4L <B<2 / 3L。 8. The lens barrel structure according to claim 1, characterized in that: The bearing annular surface (10) has a pore structure, the pore structure extends along the circumference of the bearing annular surface (10), the pore structure includes at least one slotted structure (12), the slotted structure (12) penetrates the bearing annular surface (10) along the radial direction of the bearing annular surface (10), and when there are multiple slotted structures (12), the multiple slotted structures (12) are arranged at intervals along the circumference of the bearing annular surface (10).
9. The lens barrel structure according to claim 8, characterized in that: The groove wall surface of the groove structure (12) is arranged parallel to the radial direction of the supporting annular surface (10), and the groove width T of the groove structure (12) satisfies: 0.03mm≤T≤0.07mm.
10. The lens barrel structure according to claim 8, characterized in that: The groove width of the groove structure (12) gradually increases in a direction away from the central axis of the lens barrel structure, and the included angle α of two groove wall surfaces of the groove structure (12) satisfies: 3°≤α≤10°.
11. The lens barrel structure according to claim 8, characterized in that: The number M of the slotted structures (12) satisfies: 1≤M≤100.
12. An optical lens, characterized in that: The lens barrel structure and the lens group comprise any one of claims 1 to 11.