Optical trimming lens

Abstract

The utility model provides an optical trimming lens. The optical trimming lens comprises a lens barrel and at least one lens and a pressing ring which are arranged in the lens barrel, the peripheral surface of the pressing ring comprises a first tangent plane and a second tangent plane which are oppositely arranged, the first tangent plane and the second tangent plane are each provided with a first step structure, and the lens barrel is provided with a second step structure matched with the first step structure. And a dispensing gap is formed between the first step structure and the second step structure. According to the utility model, the problem of poor stability of an optical trimming lens in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical imaging equipment, in particular to an optical trimming lens. Background Art

[0002] With the continuous development of optical lenses, the appearance of optical lenses is gradually developing in the direction of miniaturization and thinness. In order to better reduce the size of optical lenses, more and more solutions for optical trimmed lenses are being developed. The current optical trimmed lenses have some limitations, especially in the dispensing operation. Due to the structural limitations of the optical trimmed lenses, it is impossible to achieve full circle dispensing, which affects the bonding stability of the optical trimmed lenses and the overall push-off force of the optical trimmed lenses.

[0003] That is to say, the optical trimming lens in the prior art has the problem of poor stability. Utility Model Content

[0004] The main purpose of the utility model is to provide an optical trimming lens to solve the problem of poor stability of the optical trimming lens in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model provides an optical trimming lens, including a lens barrel and at least one lens and a pressure ring arranged in the lens barrel, the outer peripheral surface of the pressure ring includes a first cut surface and a second cut surface arranged opposite to each other, the first cut surface and the second cut surface both have a first step structure, the lens barrel has a second step structure matching the first step structure, and a dispensing gap is formed between the first step structure and the second step structure.

[0006] Furthermore, the pressing ring also has a glue dispensing groove, which is located on the image side of the pressing ring, and the glue dispensing groove is connected to the glue dispensing gap.

[0007] Furthermore, there are multiple glue dispensing grooves, and the part of the pressure ring connected to the first section has at least one glue dispensing groove on the side surface, and the part of the pressure ring connected to the second section has at least one glue dispensing groove on the side surface.

[0008] Further, the first step structure and the second step structure are clearance-matched in the radial direction of the optical edge cutting lens; and / or the first step structure and the second step structure are at least partially abutted in the optical axis direction of the optical edge cutting lens.

[0009] Furthermore, the first step structure includes a first surface segment, a second surface segment and a third surface segment connected in sequence from the object side to the image side, the first surface segment and the third surface segment are both parallel to the optical axis of the optical trimming lens, the second surface segment is arranged perpendicular to the optical axis, and the first surface segment is close to the optical axis relative to the third surface segment, and the second step structure includes a fourth surface segment, a fifth surface segment and a sixth surface segment connected in sequence from the object side to the image side, the fourth surface segment and the sixth surface segment are both parallel to the optical axis, the fifth surface segment is arranged perpendicular to the optical axis, and the fourth surface segment is arranged close to the optical axis relative to the sixth surface segment.

[0010] Further, the first surface segment and the fourth surface segment are gap-matched, the third surface segment and the sixth surface segment are gap-matched to form a dispensing gap, and the second surface segment and the fifth surface segment are at least partially abutted.

[0011] Furthermore, the radial height L5 of the gap between the first surface segment and the fourth surface segment is greater than 0.03mm and less than 0.05mm; and / or the radial height L4 of the dispensing gap is greater than 0.05mm and less than 0.1mm; and / or the radial abutment height L6 between the second surface segment and the fifth surface segment is greater than 0.1mm and less than 0.2mm.

[0012] Furthermore, the axial depth L3 of the glue dispensing groove is greater than 0.1 mm and less than 0.2 mm; and / or the radial length L2 of the glue dispensing groove and the radial width L1 of the glue dispensing groove satisfy: 4<L2 / L1<6.

[0013] Furthermore, the radial length L2 of the glue dispensing groove is greater than 1 mm and less than 1.8 mm; and / or the radial width L1 of the glue dispensing groove is greater than 0.25 mm and less than or equal to 0.3 mm.

[0014] Further, the wall thickness L7 of the image side end of the lens barrel is greater than 0.15 mm and less than 0.5 mm.

[0015] By applying the technical solution of the utility model, the optical trimming lens includes a lens barrel and at least one lens and a pressure ring arranged in the lens barrel, the outer peripheral surface of the pressure ring includes a first cut surface and a second cut surface arranged opposite to each other, the first cut surface and the second cut surface both have a first step structure, the lens barrel has a second step structure matching the first step structure, and a dispensing gap is formed between the first step structure and the second step structure.

[0016] The outer peripheral surface of the pressure ring includes a first cut surface and a second cut surface that are relatively arranged, so that the pressure ring is a trimming pressure ring. By arranging a first step structure on the two cut surfaces, arranging a second step structure that cooperates with the first step structure on the lens barrel, and planning to form a glue spotting gap between the first step structure and the second step structure, the two cut surfaces of the pressure ring and the lens barrel can not only cooperate with each other through the first step structure and the second step structure to ensure the assembly position accuracy of the pressure ring and the lens barrel, but also the first cut surface and the second cut surface of the pressure ring can be glued to the inner wall surface of the lens barrel through the glue spotting gap, so that the cut surfaces of the pressure ring and the lens barrel can also be glued, ensuring that the pressure ring and the lens barrel of the optical trimming lens of the present application can be glued in a whole circle, which is beneficial to improving the connection strength between the pressure ring and the lens barrel, further ensuring the structural stability of the optical trimming lens, and improving the push-off force of the optical trimming lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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:

[0018] Figure 1 A schematic diagram of assembling a pressing ring and a lens barrel of an optical trimming lens of an optional embodiment of the utility model is shown;

[0019] Figure 2 Shows Figure 1 A schematic diagram of another direction of the optical trimming lens in FIG.

[0020] Figure 3 Shows Figure 1 A schematic diagram of an angle of the pressure ring in FIG.

[0021] Figure 4 Shows Figure 2 Dimensional drawing of the pressure ring and lens barrel of the optical trimmed lens.

[0022] The above drawings include the following reference numerals:

[0023] 10. Lens barrel; 11. Second step structure; 111. Fourth surface segment; 112. Fifth surface segment; 113. Sixth surface segment; 20. Pressing ring; 21. First section; 22. Second section; 23. First step structure; 231. First surface segment; 232. Second surface segment; 233. Third surface segment; 24. Glue dispensing groove; 30. Lens; 40. Optical axis; 50. Glue dispensing gap. DETAILED DESCRIPTION

[0024] 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.

[0025] 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.

[0026] 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.

[0027] In order to solve the problem of poor stability of the optical trimming lens in the prior art, the utility model provides an optical trimming lens.

[0028] like Figures 1 to 4 As shown, the optical trimming lens includes a lens barrel 10 and at least one lens 30 and a pressure ring 20 arranged in the lens barrel 10. The outer peripheral surface of the pressure ring 20 includes a first cut surface 21 and a second cut surface 22 that are relatively arranged. The first cut surface 21 and the second cut surface 22 both have a first step structure 23. The lens barrel 10 has a second step structure 11 that cooperates with the first step structure 23. A dispensing gap 50 is formed between the first step structure 23 and the second step structure 11.

[0029] The outer peripheral surface of the pressing ring 20 includes a first cut surface 21 and a second cut surface 22 which are arranged opposite to each other, so that the pressing ring 20 is a trimming pressing ring. By arranging a first step structure 23 on the two cut surfaces, arranging a second step structure 11 which cooperates with the first step structure 23 on the lens barrel 10, and planning to form a dispensing gap 50 between the first step structure 23 and the second step structure 11, the two cut surfaces of the pressing ring 20 and the lens barrel 10 can not only cooperate with each other through the first step structure 23 and the second step structure 11, but also ensure that the pressing ring The assembly position accuracy of the pressure ring 20 and the lens barrel 10 can also be improved by gluing the first cut surface 21 and the second cut surface 22 of the pressure ring 20 to the inner wall surface of the lens barrel 10 through the glue spot gap 50, so that the cut surfaces of the pressure ring 20 and the lens barrel 10 can also be glued, ensuring that the pressure ring 20 and the lens barrel 10 of the optical edge cutting lens of the present application can be glued in a whole circle, which is beneficial to improving the connection strength between the pressure ring 20 and the lens barrel 10, further ensuring the structural stability of the optical edge cutting lens, and improving the push-off force of the optical edge cutting lens.

[0030] It should be noted that the pressure ring 20 of the present application is a trimmed pressure ring, which is equivalent to cutting off parts of both sides of a circular pressure ring 20, and the cutting direction is perpendicular to the direction of the optical axis 40. The two sides are a set of opposite sides of the pressure ring 20 to form a Figure 3 The pressing ring 20 of the shape shown in the figure, the first cut surface 21 and the second cut surface 22 of the pressing ring 20 are the surfaces formed by cutting off the two side parts. In addition, the lens barrel 10 of the present application is also a trimming lens barrel 10, and the principle of formation is the same as that of the pressing ring 20. In the optical trimming lens, the pressing ring 20 is usually arranged on the image side of the lens 30 closest to the image side in the lens barrel 10, and the object side of the pressing ring 20 is partially abutted with the image side of the lens 30 to realize the assembly of the entire optical trimming lens.

[0031] It should also be noted that in Figure 1 In the figure, the left side is the object side of the optical cropping lens, and the right side is the image side of the optical cropping lens. Figure 1 , 2 4 only shows one lens 30, and the lens 30 shown is the lens 30 on the most image side that abuts against the pressing ring 20. In an actual optical trimming lens, the number of lenses 30 is not limited to one as shown in the figure, and can be multiple, and the lens 30 on the most image side among the multiple lenses 30 abuts against the pressing ring 20. The surface of the pressing ring 20 facing the object side is the object side surface, and the surface of the pressing ring 20 facing the image side is the image side surface. The pressing ring 20 also has an inner peripheral surface and an outer peripheral surface. The object side surface and the image side surface of the pressing ring 20 facing the optical axis 40 are connected by the inner peripheral surface, and the object side surface and the image side surface of the pressing ring 20 away from the optical axis 40 are connected by the outer peripheral surface.

[0032] like Figures 1 to 3 As shown, the pressing ring 20 also has a glue dispensing groove 24, which is located on the image side of the pressing ring 20, and the glue dispensing groove 24 extends to the outer peripheral surface of the pressing ring 20, and the glue dispensing groove 24 is connected with the glue dispensing gap 50. By setting the glue dispensing groove 24, the glue dispensing groove 24 provides a storage space for glue, which is conducive to ensuring the stability of the glue dispensing process, and is also conducive to preventing the glue from overflowing to other positions and affecting the appearance of the lens. By setting the glue dispensing groove 24 to be connected with the glue dispensing gap 50, the glue in the glue dispensing groove 24 can flow into the glue dispensing gap 50, thereby realizing the gluing of the first cut surface 21, the second cut surface 22 of the pressing ring 20 and the lens barrel 10, and ensuring the push-off force of the optical trimming lens. Therefore, the lens of the present application can perform glue dispensing and fixing on the pressing ring 20 and the lens barrel 10 in the trimming direction, and can realize glue dispensing in the trimming direction, thereby improving the overall push-off force of the optical trimming lens.

[0033] Specifically, there are multiple glue-dispensing grooves 24, at least one of which corresponds to the first section 21. Specifically, the part of the pressing ring 20 connected to the first section 21 has at least one glue-dispensing groove 24 on the side surface, and at least another glue-dispensing groove 24 corresponds to the second section 22. Specifically, the part of the pressing ring 20 connected to the second section 22 has at least one glue-dispensing groove 24 on the side surface. Figure 3 In the specific embodiment shown, two glue dispensing grooves 24 are provided, both of which are located on the image side surface of the pressure ring 20 and the two glue dispensing grooves 24 are arranged opposite to each other, and the two glue dispensing grooves 24 extend to the outer peripheral surface of the pressure ring 20 on the side away from the optical axis 40. Specifically, one of the two glue dispensing grooves 24 is located on the partial image side surface of the pressure ring 20 connected to the first section 21 and the side of the glue dispensing groove 24 away from the optical axis 40 extends to the first section 21, specifically extends to the glue dispensing gap 50 between the first section 21 and the lens barrel 10; the other of the two glue dispensing grooves 24 is located on the partial image side surface of the pressure ring 20 connected to the second section 22 and the side of the glue dispensing groove 24 away from the optical axis 40 extends to the second section 22, specifically extends to the glue dispensing gap 50 between the second section 22 and the lens barrel 10.

[0034] like Figure 1 and Figure 2 As shown, the first step structure 23 and the second step structure 11 have clearance fit in the radial direction of the optical trimming lens, that is, there is a fit gap between the first step structure 23 and the second step structure 11 in the radial direction of the optical trimming lens, which is conducive to ensuring that the eccentricity of the assembly of the pressing ring 20 is avoided and the interference with the lens barrel 10 is avoided. The first step structure 23 and the second step structure 11 are at least partially abutted in the direction of the optical axis 40 of the optical trimming lens, that is, there is an abutment area between the first step structure 23 and the second step structure 11 in the direction of the optical axis 40 of the optical trimming lens. By reasonably setting the fit relationship between the first step structure 23 and the second step structure 11, it is not only conducive to ensuring the assembly stability between the two, but also can avoid the eccentricity of the assembly of the pressing ring 20.

[0035] like Figure 1 and Figure 2As shown, the first step structure 23 includes a first surface segment 231, a second surface segment 232 and a third surface segment 233 which are connected at an angle in sequence from the object side to the image side. The first surface segment 231 and the third surface segment 233 are both parallel to the optical axis 40 of the optical trimming lens, the second surface segment 232 is arranged perpendicular to the optical axis 40, and the first surface segment 231 is close to the optical axis 40 relative to the third surface segment 233. That is, the first surface segment 231 is perpendicularly connected to the second surface segment 232, and the second surface segment 232 is perpendicularly connected to the second surface segment 232. The second step structure 11 includes a fourth surface segment 111, a fifth surface segment 112 and a sixth surface segment 113 which are connected in sequence at an angle from the object side to the image side. The fourth surface segment 111 and the sixth surface segment 113 are both parallel to the optical axis 40, the fifth surface segment 112 is arranged perpendicular to the optical axis 40, and the fourth surface segment 111 is arranged close to the optical axis 40 relative to the sixth surface segment 113. That is, the fourth surface segment 111 is perpendicularly connected to the fifth surface segment 112, and the fifth surface segment 112 is perpendicularly connected to the sixth surface segment 113.

[0036] Specifically, the first surface segment 231 corresponds to the fourth surface segment 111 and the two are gap-matched, the third surface segment 233 corresponds to the sixth surface segment 113 and the two are gap-matched to form a dispensing gap 50, and the second surface segment 232 at least partially abuts against the fifth surface segment 112. By setting the first surface segment 231 to be gap-matched with the fourth surface segment 111, the third surface segment 233 to be gap-matched with the sixth surface segment 113, and planning the second surface segment 232 in the middle to be partially abutted against the fifth surface segment 112, it is helpful to avoid the assembly interference problem of the cutting edge part of the pressing ring 20 and the lens barrel 10, and at the same time ensure the reliability of the gluing between the pressing ring 20 and the lens barrel 10, ensure the assembly accuracy of the pressing ring 20 and the lens barrel 10, and further ensure the push-off force of the lens.

[0037] like Figure 4 As shown, the radial height L5 of the gap between the first face segment 231 and the fourth face segment 111 is greater than 0.03mm and less than 0.05mm. This arrangement can prevent the eccentric assembly of the pressure ring 20 from interfering with the lens barrel 10. The radial height L4 of the glue dispensing gap 50 is greater than 0.05mm and less than 0.1mm. This arrangement allows the glue to be dispensed at the glue dispensing groove 24, and the glue in the glue dispensing groove 24 flows into the glue dispensing gap 50, thereby achieving the bonding of the first cut surface 21 and the second cut edge of the pressure ring 20 to the inner wall surface of the lens barrel 10 respectively, thereby increasing the bonding strength between the pressure ring 20 and the lens barrel 10. The radial abutment height L6 of the second face segment 232 and the fifth face segment 112 is greater than 0.1mm and less than 0.2mm, and this arrangement is conducive to ensuring the bearing stability of the pressure ring 20 and the lens barrel 10. In different embodiments of the present application, L5=0.031mm, 0.04mm, 0.049mm. In different embodiments of the present application, L4=0.052mm, 0.08mm, 0.09mm, 0.09mm. In different embodiments of the present application, L6=0.11mm, 0.13mm, 0.19mm.

[0038] like Figure 3 and Figure 4 As shown, the glue dispensing groove 24 is spaced from the inner wall surface of the pressure ring 20, and the axial depth L3 of the glue dispensing groove 24 is greater than 0.1mm and less than 0.2mm; the radial length L2 of the glue dispensing groove 24 and the radial width L1 of the glue dispensing groove 24 satisfy: 4<L2 / L1<6. Specifically, the radial length L2 of the glue dispensing groove 24 is greater than 1mm and less than 1.8mm; the radial width L1 of the glue dispensing groove 24 is greater than 0.25mm and less than or equal to 0.3mm. By rationally planning the size of the glue dispensing groove 24, it is beneficial to ensure the reliability of the use of the glue dispensing groove 24 and ensure the amount of glue storage. In different embodiments of the present application, L3=0.11mm, 0.17mm, 0.19mm. In different embodiments of the present application, L2 / L1=4.1, 4.7, 5.2, 5.8, 5.93. In different embodiments of the present application, L2=1.1mm, 1.2mm, 1.7mm, 1.78mm. In different embodiments of the present application, L1=0.252 mm, 0.27 mm, 0.298 mm.

[0039] like Figure 4 As shown, the wall thickness L7 of the image side end of the lens barrel 10 is greater than 0.15mm and less than 0.5mm. Specifically, L7 is the wall thickness at the image side end cutting edge position of the lens barrel 10. Such a setting is conducive to ensuring the structural strength of the lens barrel 10, thereby avoiding the risk of deformation of the lens barrel 10. In different embodiments of the present application, L7=0.153mm, 0.17mm, 0.21mm, 0.34mm, 0.44mm, 0.498mm.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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. An optical trimming lens, characterized in that: The invention comprises a lens barrel (10), and at least one lens (30) and a pressure ring (20) arranged in the lens barrel (10). The outer peripheral surface of the pressure ring (20) includes a first cut surface (21) and a second cut surface (22) which are arranged opposite to each other, and the first cut surface (21) and the second cut surface (22) both have a first step structure (23), and the lens barrel (10) has a second step structure (11) which cooperates with the first step structure (23), and a dispensing gap (50) is formed between the first step structure (23) and the second step structure (11).

2. The optical trimming lens according to claim 1, characterized in that: The pressing ring (20) further comprises a glue dispensing groove (24), wherein the glue dispensing groove (24) is located on the image side surface of the pressing ring (20), and the glue dispensing groove (24) is connected to the glue dispensing gap (50).

3. The optical trimming lens according to claim 2, characterized in that: There are a plurality of the glue dispensing grooves (24), and the portion of the pressing ring (20) connected to the first cut surface (21) has at least one of the glue dispensing grooves (24) on the side surface, and the portion of the pressing ring (20) connected to the second cut surface (22) has at least one of the glue dispensing grooves (24) on the side surface.

4. The optical trimming lens according to claim 1, characterized in that: The first step structure (23) and the second step structure (11) are clearance-matched in the radial direction of the optical edge cutting lens; and / or The first step structure (23) and the second step structure (11) are at least partially in contact with each other in the direction of the optical axis (40) of the optical edge cutting lens.

5. The optical trimming lens according to claim 1, characterized in that: The first step structure (23) comprises a first surface segment (231), a second surface segment (232) and a third surface segment (233) connected in sequence from the object side to the image side; the first surface segment (231) and the third surface segment (233) are both parallel to the optical axis (40) of the optical trimming lens; the second surface segment (232) is arranged perpendicular to the optical axis (40); the first surface segment (231) is closer to the optical axis (40) relative to the third surface segment (233); the second step structure (11) comprises a fourth surface segment (111), a fifth surface segment (112) and a sixth surface segment (113) connected in sequence from the object side to the image side; the fourth surface segment (111) and the sixth surface segment (113) are both parallel to the optical axis (40); the fifth surface segment (112) is arranged perpendicular to the optical axis (40); the fourth surface segment (111) is arranged closer to the optical axis (40) relative to the sixth surface segment (113).

6. The optical trimming lens according to claim 5, characterized in that: The first surface segment (231) is gap-matched with the fourth surface segment (111), the third surface segment (233) is gap-matched with the sixth surface segment (113) to form the dispensing gap (50), and the second surface segment (232) is at least partially abutted with the fifth surface segment (112).

7. The optical trimming lens according to claim 6, characterized in that: A radial height L5 of a gap between the first surface segment (231) and the fourth surface segment (111) is greater than 0.03 mm and less than 0.05 mm; and / or The radial height L4 of the dispensing gap (50) is greater than 0.05 mm and less than 0.1 mm; and / or A radial abutment height L6 between the second surface segment (232) and the fifth surface segment (112) is greater than 0.1 mm and less than 0.2 mm.

8. The optical trimming lens according to claim 2, characterized in that: The axial depth L3 of the glue dispensing groove (24) is greater than 0.1 mm and less than 0.2 mm; and / or The radial length L2 of the glue dispensing groove (24) and the radial width L1 of the glue dispensing groove (24) satisfy the relationship: 4<L2 / L1<6.

9. The optical trimming lens according to claim 2, characterized in that: The radial length L2 of the glue dispensing groove (24) is greater than 1 mm and less than 1.8 mm; and / or The radial width L1 of the glue dispensing groove (24) is greater than 0.25 mm and less than or equal to 0.3 mm.

10. The optical trimming lens according to any one of claims 1 to 9, characterized in that: The wall thickness L7 of the image side end of the lens barrel (10) is greater than 0.15 mm and less than 0.5 mm.

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