Trimming lens buckling structure

Abstract

The utility model provides a trimming lens buckling structure which comprises a first lens, a second lens and an anti-dazzling screen, and the first lens forms a raised first buckling structure; the second lens forms a concave second buckling structure; the anti-dazzling screen comprises an anti-dazzling screen body and a special-shaped part formed on the periphery of the anti-dazzling The first lens and the second lens are buckled and connected through the first buckling structure and the second buckling structure; the anti-dazzling screen is clamped between the first lens and the second lens, and the special-shaped parts are arranged on the two sides of the first buckling structure and the second buckling structure; the width a1 of the first buckling structure and the width b1 of the first lens meet the condition that a1 / b1 is more than or equal to 0.4 and less than or equal to 0.7; the width a2 of the second buckling structure and the width b2 of the second lens meet the condition that a2 / b2 is larger than or equal to 0.6 and smaller than or equal to 0.8. The trimming lens buckling structure of the utility model can improve the assembly stability of a trimming lens, improve the MTF performance and yield of the lens, and improve the reliability of the trimming lens.

Description

Technical Field

[0001] This application belongs to the field of optical devices, and particularly relates to a trimming lens fastening structure. Background Art

[0002] With the popularization and development of smart phones, mobile phone photography has become one of the indispensable functions in people's daily lives. In order to meet users' higher requirements for photographing effects and ensure a relatively thin body, the trimming structure is widely used in the design of lenses. On the premise of meeting the chief ray angle (CRA), relative illuminance (RI) and corresponding optical properties, part of the effective diameter of the lens is cut off to reduce the size of the imaging lens and the camera module, so as to reduce the space occupied by the lens in the mobile phone under the same performance and meet the requirements of mobile phone manufacturers for lens miniaturization.

[0003] Existing trimming lenses often adopt a stacked structure, that is, lenses, light-shielding sheets, and lenses are stacked on top of each other, and the lenses are fixed by the inner diameter stop of the lens barrel. During the lens assembly process, gluing, baking, and cooling are required. The glue generates a pulling force on the lens barrel, and the pulling force of the glue on the lens barrel after baking and cooling will be transmitted to the lens, ultimately causing the lens to deform, affecting the MTF performance and yield rate of the lens, and further causing a change in the fitting allowance between the lens barrel and the lens; in addition, since the light-shielding sheet may deform under high temperature and high humidity, the air gap between the lenses will change, affecting the reliability of the lens. That is to say, the existing trimming lenses in the prior art have problems of unstable assembly and poor reliability. Utility Model Content

[0004] Aiming at the above deficiencies in the prior art, the present utility model provides a trimming lens fastening structure, which adds a fastening structure to the lens. Through the fastening structure, the lenses are directly in contact and fixed with each other, avoiding contact between the lens and the inner diameter stop of the lens barrel; through the special-shaped light-shielding sheet, it can block as much excess light as possible, improving the problem of lens stray light; it can improve the assembly stability of the trimming lens, improve the MTF performance and yield rate of the lens, and enhance the reliability of the trimming lens.

[0005] In order to achieve the above object, the present utility model provides a trimming lens fastening structure, including a first lens, a second lens, and a light-shielding sheet, characterized in that:

[0006] The first lens forms at least two convex first fastening structures, and the first fastening structures form a first bearing plane;

[0007] The second lens forms at least two concave second fastening structures, the second fastening structures form a second bearing plane, and a bearing portion is formed inside the second fastening structures;

[0008] The light-shielding sheet includes a light-shielding sheet body and a special-shaped portion formed on the periphery of the light-shielding sheet body;

[0009] The first lens and the second lens are snap - connected through the first snap - fitting structure and the second snap - fitting structure. The first bearing plane is in contact with the second bearing plane, and the first snap - fitting structure is in contact with the bearing inclined plane of the bearing part. The light - shielding sheet is clamped between the first lens and the second lens, and the special - shaped part is arranged on both sides of the first snap - fitting structure and the second snap - fitting structure;

[0010] The width a1 of the first snap - fitting structure and the width b1 of the first lens satisfy: 0.4 ≤ a1 / b1 ≤ 0.7; the width a2 of the second snap - fitting structure and the width b2 of the second lens satisfy: 0.6 ≤ a2 / b2 ≤ 0.7; the minimum gap between the first snap - fitting structure and the second snap - fitting structure satisfies: 0.18 mm ≤ (a2 - a1) / 2 ≤ 0.36 mm.

[0011] According to an embodiment of the present application, the protruding height c1 of the first snap - fitting structure and the thickness d1 of the first lens satisfy: when d1 ≤ 0.8 mm, c1 / d1 ≤ 0.5; when d1 > 0.8 mm, c1 / d1 ≤ 0.3;

[0012] The recessed depth c2 of the second snap - fitting structure and the thickness d2 of the second lens satisfy: when d2 ≤ 0.8 mm, c2 / d2 ≤ 0.5; when d2 > 0.8 mm, c2 / d2 ≤ 0.3.

[0013] According to an embodiment of the present application, the protruding height c1 of the first snap - fitting structure, the recessed depth c2 of the second snap - fitting structure and the thickness e of the light - shielding sheet satisfy: 0.005 mm ≤ c1 - c2 - e ≤ 0.008 mm.

[0014] According to an embodiment of the present application, the angle θ between the bearing inclined plane and the second bearing plane satisfies: 52° ≤ θ ≤ 75°.

[0015] According to an embodiment of the present application, the fillet size i of the bearing part, the contact part length g between the bearing inclined plane and the first snap - fitting structure, the angle θ between the bearing inclined plane and the second bearing plane, and the recessed depth c2 of the second snap - fitting structure satisfy: 0.5 ≤ g / (c2-(i - i*cosθ)) ≤ 0.9.

[0016] According to an embodiment of the present application, the radius R1 of the first lens, the radius R2 of the second lens, the length h1 of the first bearing plane, and the length h2 of the second bearing plane satisfy: 0.5 ≤ h1 / h2 ≤ 0.7; and when R1 ≤ 3 mm, h1 ≥ 0.1 mm; when 3 mm ≤ R1 ≤ 5 mm, h1 ≥ 0.13 mm; when R1 ≥ 5 mm, h1 ≥ 0.15 mm.

[0017] According to an embodiment of the present application, the angle k1 between the first bearing plane and the two side surfaces of the first fastening structure and the angle k2 between the second bearing plane and the two side surfaces of the second fastening structure satisfy: 110° ≤ k1 ≤ 160°, 136° ≤ k2 ≤ 170°.

[0018] According to an embodiment of the present application, the distance m between the two special-shaped parts on the same side of the light-shielding sheet, the width a1 of the first fastening structure, the width a2 of the second fastening structure, the protruding height c1 of the first fastening structure, the recessed depth c2 of the second fastening structure, the angle k1 between the first bearing plane and the two side surfaces of the first fastening structure, and the angle k2 between the second bearing plane and the two side surfaces of the second fastening structure satisfy: a1 + 2*c1 / tan(180 - k1) ≤ m ≤ a2 + 2*c2 / tan(180 - k2); 0 ≤ [m - (a1 + 2*c1 / tan(180 - k1))] / 2 ≤ 0.4.

[0019] According to an embodiment of the present application, the outer diameter R3 of the light-shielding sheet and the radius R1 of the first lens satisfy: R3 ≥ R1.

[0020] According to an embodiment of the present application, the width j of the light-shielding sheet body and the thickness e of the light-shielding sheet satisfy: 13 ≤ j / e ≤ 29.

[0021] Due to the adoption of the above technical solutions, the present utility model has the following beneficial effects:

[0022] 1. A fastening structure is added to the lens. Through the fastening structure, the first lens and the second lens are directly in contact and fixed, avoiding contact between the lens and the inner diameter of the lens barrel. This can not only improve the assembly stability of the trimmed lens, enhance the MTF performance and the yield rate of the lens, but also improve the reliability of the lens.

[0023] 2. By adopting the special-shaped light-shielding sheet, it is possible to block as much redundant light as possible and improve the problem of stray light in the lens. Description of the Drawings

[0024] To more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 Schematic diagram of the three-dimensional structure of the edge-cut lens fastening structure according to the embodiment of the present utility model;

[0026] Figure 2 and Figure 3 Cross-sectional view of the edge-cut lens fastening structure according to the embodiment of the present utility model in the first direction;

[0027] Figure 4 is Figure 2 Partial enlarged view of area A in

[0028] Figure 5 and Figure 6 Partial cross-sectional view of the edge-cut lens fastening structure according to the embodiment of the present utility model in the second direction;

[0029] Figure 7 Partial enlarged view of the bearing part according to the embodiment of the present utility model;

[0030] Figure 8 Schematic diagram of the structure of the light-shielding sheet according to the embodiment of the present utility model;

[0031] Figure 9 and Figure 10 Partial cross-sectional view of the edge-cut lens fastening structure according to the first embodiment of the present utility model in the second direction;

[0032] Figure 11 Cross-sectional view of the edge-cut lens fastening structure according to the first embodiment of the present utility model in the first direction;

[0033] Figure 12 is Figure 11 Partial enlarged view of area A in

[0034] Figure 13 Schematic diagram of the structure of the light-shielding sheet according to the first embodiment of the present utility model;

[0035] Figure 14 and Figure 15 Partial cross-sectional view of the edge-cut lens fastening structure according to the second embodiment of the present utility model in the second direction;

[0036] Figure 16 Cross-sectional view of the edge-cut lens fastening structure according to the second embodiment of the present utility model in the first direction;

[0037] Figure 17 isFigure 16 Partial enlarged view of area A;

[0038] Figure 18 Structural schematic diagram of the light-shielding sheet according to the second embodiment of the present invention;

[0039] Figure 19 and Figure 20 Partial cross-sectional view in the second direction of the edge-cut lens fastening structure according to the third embodiment of the present invention;

[0040] Figure 21 Cross-sectional view in the first direction of the edge-cut lens fastening structure according to the third embodiment of the present invention;

[0041] Figure 22 is Figure 21 Partial enlarged view of area A;

[0042] Figure 23 Structural schematic diagram of the light-shielding sheet according to the third embodiment of the present invention;

[0043] Figure 24 and Figure 25 Partial cross-sectional view in the second direction of the edge-cut lens fastening structure according to the fourth embodiment of the present invention;

[0044] Figure 26 Cross-sectional view in the first direction of the edge-cut lens fastening structure according to the fourth embodiment of the present invention;

[0045] Figure 27 is Figure 26 Partial enlarged view of area A;

[0046] Figure 28 Structural schematic diagram of the light-shielding sheet according to the fourth embodiment of the present invention.

[0047] Explanation of the reference numerals in the drawings:

[0048] 1 - First lens;

[0049] 11 - First fastening structure; 12 - First bearing plane;

[0050] 2 - Second lens;

[0051] 21 - Second fastening structure; 22 - Second bearing plane; 23 - Bearing part

[0052] 3 - Light-shielding sheet;

[0053] 31 - Light-shielding sheet body; 32 - Special-shaped part. Detailed implementation manners

[0054] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0055] It should be noted that in this specification, the expressions such as first, second, and third are only used to distinguish one feature from another feature, and do not represent any limitation on the feature.

[0056] It should also be understood that the terms "comprising", "including", "having", "containing", and / or "including" when used in this specification indicate the presence of the stated features, elements, and / or components, but do not exclude the presence or addition of one or more other features, elements, components, and / or their combinations. In addition, when an expression such as "at least one of......" appears after the list of listed features, it modifies the entire list of listed features rather than a single element in the list. In addition, when describing the embodiments of the present application, the use of "may" indicates "one or more embodiments of the present application". And the term "exemplary" is intended to refer to an example or illustration.

[0057] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which this application belongs. It should also be understood that terms (such as those defined in a common dictionary) should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and will not be interpreted in an idealized or overly formal manner unless clearly defined herein.

[0058] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The features, principles, and other aspects of the present application will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0059] Exemplary Embodiment

[0060] Please refer to Figures 1 to 8 , a trimming lens fastening structure in an exemplary embodiment of the present application, including a first lens 1, a second lens 2, and a light-shielding sheet 3:

[0061] The first lens 1 forms at least two first fastening structures 11 that protrude, and the first fastening structures 11 form a first bearing plane 12;

[0062] The second lens 2 forms at least two second fastening structures 21 that are recessed. The second fastening structure 21 forms a second bearing plane 22, and a bearing portion 23 is formed inside the second fastening structure 21;

[0063] The light-shielding sheet 3 includes a light-shielding sheet body 31 and a special-shaped portion 32 formed on the periphery of the light-shielding sheet body 31;

[0064] The first lens 1 and the second lens 2 are fastened and connected through the first fastening structure 11 and the second fastening structure 21. The first bearing plane 12 is attached to the second bearing plane 22, and the first fastening structure 11 is attached to the bearing inclined plane of the bearing portion 23; the light-shielding sheet 3 is clamped between the first lens 1 and the second lens 2, and the special-shaped portion is arranged on both sides of the first fastening structure 11 and the second fastening structure 21;

[0065] By adding a fastening structure to the lens, through the fastening structure, the first lens 1 and the second lens 2 are directly contacted and fixed, avoiding contact between the lens and the inner diameter file of the lens barrel; it can not only improve the assembly stability of the trimmed lens, improve the MTF performance and the yield rate of the lens, but also improve the reliability of the lens; by adopting the special-shaped light-shielding sheet 3, redundant light can be blocked as much as possible, improving the problem of stray light in the lens.

[0066] The width a1 of the first fastening structure 11 and the width b1 of the first lens 1 satisfy: 0.4 ≤ a1 / b1 ≤ 0.7; the width a2 of the second fastening structure 21 and the width b2 of the second lens 2 satisfy: 0.6 ≤ a2 / b2 ≤ 0.7; ensuring that the first lens 1 and the second lens 2 have sufficient fastening area and ensuring the connection stability between the lenses.

[0067] The minimum gap between the first fastening structure 11 and the second fastening structure 21 satisfies: 0.1mm ≤ (a2 - a1) / 2 ≤ 0.4mm; preventing interference between the first lens 1 and the second lens 2.

[0068] According to an embodiment of the present application, the protruding height c1 of the first fastening structure 11 and the thickness d1 of the first lens 1 satisfy: when d1 ≤ 0.8mm, c1 / d1 ≤ 0.5; when d1 > 0.8mm, c1 / d1 ≤ 0.3;

[0069] The recessed depth c2 of the second fastening structure 21 and the thickness d2 of the second lens 2 satisfy: when d2 ≤ 0.8mm, c2 / d2 ≤ 0.5; when d2 > 0.8mm, c2 / d2 ≤ 0.3; preventing abnormal molding of the lens due to excessive outward protrusion of the structure.

[0070] According to an embodiment of the present application, the protruding height c1 of the first fastening structure 11, the recessed depth c2 of the second fastening structure 21, and the thickness e of the light-shielding sheet 3 satisfy: 0.005 mm ≤ c1 - c2 - e ≤ 0.008 mm; this prevents inaccurate bearing due to bearing on both sides.

[0071] According to an embodiment of the present application, the angle θ between the bearing inclined plane and the second bearing plane 22 satisfies: 52° ≤ θ ≤ 75°, which is convenient for lens forming.

[0072] According to an embodiment of the present application, the fillet size i of the bearing portion 23, the contact portion length g between the bearing inclined plane and the first fastening structure 11, the angle θ between the bearing inclined plane and the second bearing plane 22, and the recessed depth c2 of the second fastening structure 21 satisfy: 0.5 ≤ g / (c2 - (i - i * cosθ)) ≤ 0.9. Figure 7 Where s = c2 - (i - i * cosθ).

[0073] According to an embodiment of the present application, the radius R1 of the first lens 1, the radius R2 of the second lens 2, the length h1 of the first bearing plane 12, and the length h2 of the second bearing plane 22 satisfy: 0.5 ≤ h1 / h2 ≤ 0.7; and when R1 ≤ 3 mm, h1 ≥ 0.1 mm; when 3 mm ≤ R1 ≤ 5 mm, h1 ≥ 0.13 mm; when R1 ≥ 5 mm, h1 ≥ 0.15 mm; this ensures the contact strength of the fastening.

[0074] According to an embodiment of the present application, the angle k1 between the first bearing plane 12 and the two side surfaces of the first fastening structure 11 and the angle k2 between the second bearing plane 22 and the two side surfaces of the second fastening structure 21 satisfy: 110° ≤ k1 ≤ 160°, 136° ≤ k2 ≤ 170°; this is convenient for lens forming.

[0075] According to an embodiment of the present application, the distance m between the two shaped portions on the same side of the light-shielding sheet 3, the width a1 of the first fastening structure 11, the width a2 of the second fastening structure 21, the protruding height c1 of the first fastening structure 11, the recessed depth c2 of the second fastening structure 21, the angle k1 between the first bearing plane 12 and the two side surfaces of the first fastening structure 11, and the angle k2 between the second bearing plane 22 and the two side surfaces of the second fastening structure 21 satisfy: a1 + 2 * c1 / tan(180 - k1) ≤ m ≤ a2 + 2 * c2 / tan(180 - k2); 0 ≤ [m - (a1 + 2 * c1 / tan(180 - k1))] / 2 ≤ 0.4; this enables the light-shielding sheet 3 to cover the non-bearing part of the lens as much as possible, reduces the stray light of the lens, and prevents interference with the lens.

[0076] Figure 3 Where q1 = c1 / tan(180 - k1); q2 = c2 / tan(180 - k2).

[0077] According to an embodiment of the present application, the outer diameter R3 of the light-shielding sheet 3 and the radius R1 of the first lens 1 satisfy: R3 ≥ R1.

[0078] According to an embodiment of the present application, the width j of the light-shielding sheet body 31 and the thickness e of the light-shielding sheet 3 satisfy: 13 ≤ j / e ≤ 29; to prevent the light-shielding sheet 3 from being severely deformed.

[0079] However, those skilled in the art should understand that without departing from the technical solutions claimed in the present application, the number of the first fastening structure 11 and the second fastening structure 21 can be changed to obtain the various results and advantages described in this specification. For example, although two first fastening structures 11 and second fastening structures 21 are described as examples in the embodiment, this kind of edge-cut lens fastening structure is not limited to including two first fastening structures 11 and second fastening structures 21. If necessary, this kind of edge-cut lens fastening structure may also include other numbers of first fastening structures 11 and second fastening structures 21.

[0080] The following further describes a specific embodiment of an edge-cut lens fastening structure applicable to the above embodiments with reference to the accompanying drawings. Specific Embodiment 1

[0082] Figures 9 to 13 It is a schematic structural diagram of Embodiment 1 of an edge-cut lens fastening structure of the present application. An edge-cut lens fastening structure includes a first lens 1, a second lens 2, and a light-shielding sheet 3:

[0083] The first lens 1 forms at least two first fastening structures 11 that protrude, and the first fastening structure 11 forms a first bearing plane 12;

[0084] The second lens 2 forms at least two second fastening structures 21 that are recessed. The second fastening structure 21 forms a second bearing plane 22, and a bearing portion 23 is formed inside the second fastening structure 21;

[0085] The light-shielding sheet 3 includes a light-shielding sheet body 31 and a special-shaped portion 32 formed on the periphery of the light-shielding sheet body 31;

[0086] The first lens 1 and the second lens 2 are fastened and connected through the first fastening structure 11 and the second fastening structure 21. The first bearing plane 12 is in contact with the second bearing plane 22, and the first fastening structure 11 is in contact with the bearing inclined plane of the bearing part 23. The light-shielding sheet 3 is clamped between the first lens 1 and the second lens 2, and the special-shaped part is arranged on both sides of the first fastening structure 11 and the second fastening structure 21.

[0087] As shown in Table 1, it is the basic parameter table of the edge-cut lens fastening structure of Embodiment 1. Among them, the width a1 of the first fastening structure 11, the width a2 of the second fastening structure 21, the width b1 of the first lens 1, the width b2 of the second lens 2, the protruding height c1 of the first fastening structure 11, the recessed depth c2 of the second fastening structure 21, the thickness d1 of the first lens 1, the thickness d2 of the second lens 2, the thickness e of the light-shielding sheet 3, the contact part length g between the bearing inclined plane and the first fastening structure 11, the length h1 of the first bearing plane 12, the length h2 of the second bearing plane 22, the fillet size i of the bearing part 23, the width j of the light-shielding sheet body 31, the distance m between the special-shaped parts, the radius R1 of the first lens 1, the radius R2 of the second lens 2, and the outer diameter R3 of the light-shielding sheet 3 are all in millimeters (mm). The unit of the angle θ between the bearing inclined plane and the second bearing plane 22, the angle k1 between the first bearing plane 12 and both side surfaces of the first fastening structure 11, and the angle k2 between the second bearing plane 22 and both side surfaces of the second fastening structure 21 is degree.

[0088] Example / Parameter a1 a2 b1 b2 c1 c2 d1 d2 e θ g h1 1 4.21 4.73 6.84 6.82 0.12 0.093 0.71 1.872 0.022 65° 0.035 0.192 Example / Parameter h2 i j k1 k2 m R1 R2 R3 1 0.352 0.05 0.404 160° 170° 5.5 5.09 5.04 5.09

[0089] Table 1

[0090] The edge-cut lens fastening structure in Embodiment 1 satisfies:

[0091] a1 / b1 = 0.615; a2 / b2 = 0.694; a1 / a2 = 0.89; (a2 - a1) / 2 = 0.26;

[0092] c1 / d1 = 0.169; c2 / d2 = 0.05; c1 - c2 - e = 0.005;

[0093] g / (c2 - (i - i*cosθ)) = 0.546; h1 / h2 = 0.546; a1 + 2*c1 / tan(180 - k1) = 4.865;

[0094] a2 + 2*c2 / tan(180 - k2) = 5.776;

[0095] [m - (a1 + 2*c1 / tan(180 - k1))] / 2 = 0.317;

[0096] j / e = 18.36.

[0097] Figure 12 The structural schematic diagram of a trimming lens fastening structure of Embodiment 1 is shown. It can be seen that the included angle θ between the bearing inclined plane and the second bearing plane 22 is θ = 65°. Specific Embodiment 2

[0099] Figures 14 to 18 This is the structural schematic diagram of Embodiment 2 of a trimming lens fastening structure of the present application. The structure of a trimming lens fastening structure is basically the same as that of Embodiment 1, except that the numerical values of each parameter are different.

[0100] As shown in Table 2, it is the basic parameter table of the trimming lens fastening structure of Embodiment 2. Among them, the width a1 of the first fastening structure 11, the width a2 of the second fastening structure 21, the width b1 of the first lens 1, the width b2 of the second lens 2, the protruding height c1 of the first fastening structure 11, the recessed depth c2 of the second fastening structure 21, the thickness d1 of the first lens 1, the thickness d2 of the second lens 2, the thickness e of the light-shielding sheet 3, the length g of the contact part between the bearing inclined plane and the first fastening structure 11, the length h1 of the first bearing plane 12, the length h2 of the second bearing plane 22, the fillet size i of the bearing part 23, the width j of the light-shielding sheet body 31, the spacing m of the special-shaped part, the radius R1 of the first lens 1, the radius R2 of the second lens 2, and the outer diameter R3 of the light-shielding sheet 3 are all in millimeters (mm). The unit of the included angle θ between the bearing inclined plane and the second bearing plane 22, the included angle k1 between the first bearing plane 12 and both side surfaces of the first fastening structure 11, and the included angle k2 between the second bearing plane 22 and both side surfaces of the second fastening structure 21 is degree.

[0101]

[0102] Table 2

[0103] The trimming lens fastening structure in Embodiment 2 satisfies:

[0104] a1 / b1 = 0.622; a2 / b2 = 0.685; a1 / a2 = 0.918; (a2 - a1) / 2 = 0.18;

[0105] c1 / d1 = 0.133; c2 / d2 = 0.059; c1 - c2 - e = 0.005;

[0106] g / (c2 - (i - i * cosθ)) = 0.83; h1 / h2 = 0.632; a1 + 2 * c1 / tan(180 - k1) = 4.392;

[0107] a2 + 2 * c2 / tan(180 - k2) = 5.094;

[0108] [m - (a1 + 2 * c1 / tan(180 - k1))] / 2 = 0.184;

[0109] j / e = 13.

[0110] Figure 15 The structural schematic diagram of a trimming lens fastening structure in Embodiment 2 is shown. It can be seen that the included angle θ between the bearing inclined plane and the second bearing plane 22, θ = 52°. Specific Embodiment 3

[0112] Figures 19 to 23 This is the structural schematic diagram of Embodiment 3 of a trimming lens fastening structure according to the present application. The structure of a trimming lens fastening structure is basically the same as that of Embodiment 1, except that: the numerical values of each parameter are different.

[0113] As shown in Table 3, it is the basic parameter table of the trimming lens fastening structure in Embodiment 3. Among them, the width a1 of the first fastening structure 11, the width a2 of the second fastening structure 21, the width b1 of the first lens 1, the width b2 of the second lens 2, the protruding height c1 of the first fastening structure 11, the recessed depth c2 of the second fastening structure 21, the thickness d1 of the first lens 1, the thickness d2 of the second lens 2, the thickness e of the light shielding sheet 3, the length g of the contact part between the bearing inclined plane and the first fastening structure 11, the length h1 of the first bearing plane 12, the length h2 of the second bearing plane 22, the fillet size i of the bearing part 23, the width j of the light shielding sheet body 31, the spacing m of the special-shaped part, the radius R1 of the first lens 1, the radius R2 of the second lens 2, and the outer diameter R3 of the light shielding sheet 3 are all in millimeters (mm). The unit of the included angle θ between the bearing inclined plane and the second bearing plane 22, the included angle k1 between the first bearing plane 12 and the two side surfaces of the first fastening structure 11, and the included angle k2 between the second bearing plane 22 and the two side surfaces of the second fastening structure 21 is degree.

[0114]

[0115] Table 3

[0116] The trimming lens fastening structure in Embodiment 3 satisfies:

[0117] a1 / b1 = 0.653; a2 / b2 = 0.736; a1 / a2 = 0.909; (a2 - a1) / 2 = 0.245;

[0118] c1 / d1 = 0.169; c2 / d2 = 0.11; c1 - c2 - e = 0.008;

[0119] g / (c2 - (i - i * cosθ)) = 0.678; h1 / h2 = 0.678; a1 + 2 * c1 / tan(180 - k1) = 5.237;

[0120] a2 + 2 * c2 / tan(180 - k2) = 5.673;

[0121] [m - (a1 + 2 * c1 / tan(180 - k1))] / 2 = 0.0867;

[0122] j / e = 28.33.

[0123] Figure 20 The structural schematic diagram of a trimming lens fastening structure in Embodiment 3 is shown. It can be seen that the included angle θ between the bearing inclined plane and the second bearing plane 22, θ = 60°. Specific Embodiment 4

[0125] Figures 24 to 28 This is the structural schematic diagram of Embodiment 4 of a trimming lens fastening structure of the present application. The structure of a trimming lens fastening structure is basically the same as that of Embodiment 1, except that: the numerical values of each parameter are different.

[0126] As shown in Table 4, it is the basic parameter table of the trimming lens fastening structure in Embodiment 4. Among them, the width a1 of the first fastening structure 11, the width a2 of the second fastening structure 21, the width b1 of the first lens 1, the width b2 of the second lens 2, the protruding height c1 of the first fastening structure 11, the recessed depth c2 of the second fastening structure 21, the thickness d1 of the first lens 1, the thickness d2 of the second lens 2, the thickness e of the light shielding sheet 3, the length g of the contact part between the bearing inclined plane and the first fastening structure 11, the length h1 of the first bearing plane 12, the length h2 of the second bearing plane 22, the fillet size i of the bearing part 23, the width j of the light shielding sheet body 31, the spacing m of the special-shaped part, the radius R1 of the first lens 1, the radius R2 of the second lens 2, and the outer diameter R3 of the light shielding sheet 3 are all in millimeters (mm). The unit of the included angle θ between the bearing inclined plane and the second bearing plane 22, the included angle k1 between the first bearing plane 12 and the two side surfaces of the first fastening structure 11, and the included angle k2 between the second bearing plane 22 and the two side surfaces of the second fastening structure 21 is degree.

[0127]

[0128] Table 4

[0129] The trimming lens fastening structure in Embodiment 4 satisfies:

[0130] a1 / b1 = 0.465; a2 / b2 = 0.619; a1 / a2 = 0.773; (a2 - a1) / 2 = 0.36;

[0131] c1 / d1 = 0.325; c2 / d2 = 0.145; c1 - c2 - e = 0.006;

[0132] g / (c2 - (i - i*cosθ)) = 0.709; h1 / h2 = 0.609; a1 + 2*c1 / tan(180 - k1) = 2.591;

[0133] a2 + 2*c2 / tan(180 - k2) = 3.907;

[0134] [m - (a1 + 2*c1 / tan(180 - k1))] / 2 = 0.184;

[0135] j / e = 14.58.

[0136] Figure 25 The structural schematic diagram of a trimming lens buckling structure in Embodiment 4 is shown. It can be seen that the included angle θ between the bearing inclined plane and the second bearing plane 22 is θ = 75°.

[0137] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, improvements, equivalent replacements, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A trimmed lens buckling structure, comprising a first lens, a second lens and a light shielding sheet, characterized in that: The first lens forms at least two protruding first buckling structures, and the first buckling structures form a first supporting plane; The second lens forms at least two concave second buckling structures, the second buckling structures form a second supporting plane, and the inner side of the second buckling structures forms a supporting portion; The shading sheet comprises a shading sheet body and a special-shaped portion formed on the periphery of the shading sheet body; The first lens and the second lens are buckled and connected by the first buckling structure and the second buckling structure, the first supporting plane is in contact with the second supporting plane, and the first buckling structure is in contact with the supporting inclined surface of the supporting portion; the light shielding sheet is sandwiched between the first lens and the second lens, and the special-shaped portion is arranged on both sides of the first buckling structure and the second buckling structure; The width a1 of the first buckling structure and the width b1 of the first lens satisfy: 0.4≤a1 / b1≤0.7; the width a2 of the second buckling structure and the width b2 of the second lens satisfy: 0.6≤a2 / b2≤0.8; the minimum gap between the first buckling structure and the second buckling structure satisfies: 0.1mm≤(a2-a1) / 2≤0.4mm.

2. The edge-cut lens buckling structure according to claim 1, characterized in that: The protruding height c1 of the first buckling structure and the thickness d1 of the first lens satisfy: when d1≤0.8mm, c1 / d1≤0.5; when d1>0.8mm, c1 / d1≤0.3; The recessed depth c2 of the second buckling structure and the thickness d2 of the second lens satisfy: when d2≤0.8mm, c2 / d2≤0.5; when d2>0.8mm, c2 / d2≤0.

3.

3. The edge trimming lens buckling structure according to claim 1, characterized in that: The protruding height c1 of the first buckling structure, the recessed depth c2 of the second buckling structure and the thickness e of the light shielding sheet satisfy: 0.005mm≤c1-c2-e≤0.008mm.

4. The edge trimming lens buckling structure according to claim 1, characterized in that: An included angle θ between the supporting inclined surface and the second supporting plane satisfies: 52°≤θ≤75°.

5. The edge trimming lens buckling structure according to claim 1, characterized in that: The radius i of the supporting portion, the length g of the contact portion between the supporting slope and the first snap-fit ​​structure, the angle θ between the supporting slope and the second supporting plane, and the recess depth c2 of the second snap-fit ​​structure satisfy: 0.5≤g / (c2-(ii*cosθ))≤0.

9.

6. The edge trimming lens buckling structure according to claim 1, characterized in that: The radius R1 of the first lens, the radius R2 of the second lens, the length h1 of the first supporting plane and the length h2 of the second supporting plane satisfy: 0.5≤h1 / h2≤0.7; and when R1≤3mm, h1≥0.1mm; when 3mm≤R1≤5mm, h1≥0.13mm; when R1≥5mm, h1≥0.15mm.

7. The edge-cut lens buckling structure according to claim 1, characterized in that: An included angle k1 between the first supporting plane and the two side surfaces of the first buckling structure and an included angle k2 between the second supporting plane and the two side surfaces of the second buckling structure satisfy: 110°≤k1≤160°, 136°≤k2≤170°.

8. The edge trimming lens buckling structure according to claim 1, characterized in that: The spacing m between the two special-shaped portions on the same side of the shading sheet, the width a1 of the first buckling structure, the width a2 of the second buckling structure, the protruding height c1 of the first buckling structure, the recessed depth c2 of the second buckling structure, the angle k1 between the first supporting plane and the two side surfaces of the first buckling structure, and the angle k2 between the second supporting plane and the two side surfaces of the second buckling structure satisfy: a1+2*c1 / tan(180-k1)≤m≤a2+2*c2 / tan(180-k2); 0≤[m-(a1+2*c1 / tan(180-k1))] / 2≤0.

4.

9. The edge trimming lens fastening structure according to claim 1, characterized in that: The outer diameter R3 of the shading sheet and the radius R1 of the first lens satisfy: R3 ≥ R1.

10. The edge-cut lens buckling structure according to claim 1, characterized in that: The width j of the shading sheet body and the thickness e of the shading sheet satisfy: 13≤j / e≤29.

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