Optical lens tube cap

Abstract

The utility model belongs to the technical field of optical elements, and particularly relates to an optical lens pipe cap which comprises a supporting section, a lens section is arranged at the top of the supporting section, the supporting section and the lens section are both in a hollow cylinder shape, a positioning structure is arranged on the inner wall of the lens section in a surrounding mode, and the cross section of the positioning structure is rectangular integrally. A reinforcing part is arranged between the supporting section and the lens section in a matched mode, the inner wall of the reinforcing part matched with the lens section is provided with a first guide face in a surrounding mode, the inner wall of the reinforcing part matched with the supporting section is provided with a transition face in a surrounding mode, the bottom of the supporting section is provided with a connecting part in a surrounding mode, and the inner wall of the connecting part matched with the supporting section is provided with a second guide face in a surrounding mode. The device can solve the problem that the connection strength of the positioning structure and the pipe cap is insufficient due to the fact that the radial distance between the inner wall and the outer wall of the pipe cap of the optical lens is small, improves the machining stability of the optical lens in the installation process, and ensures that the positioning structure and the optical lens are always stably connected in the subsequent use process.

Description

Technical Field

[0001] The utility model belongs to the technical field of optical elements, and in particular relates to an optical lens tube cap. Background Art

[0002] The optical lens cap is an optical element that combines a lens with a cap. It is based on the traditional cap structure and has a lens with specific optical properties built in. When the optical lens cap is used in portable devices with strict weight requirements, occasions with frequent temperature changes and space-constrained optical system integration, in order to reduce weight, speed up heat transfer and improve processing accuracy, the radial distance between the inner and outer walls of the optical lens cap is often small.

[0003] In the optical lens cap, the positioning structure is a structure that is integrally formed with the optical lens cap and is used to determine the position of the optical lens. When the radial distance between the inner and outer walls of the optical lens cap is small, the amount of material at the connection between the positioning structure and the cap is also reduced accordingly, and the connection strength is reduced. This makes the positioning structure more likely to deform when subjected to external forces such as the installation pressure of the optical lens, external vibration or impact, which not only affects the normal operation of the positioning structure, but also causes the optical lens to be displaced or fall off during use. Utility Model Content

[0004] The purpose of the utility model is to provide an optical lens tube cap, which can solve the problem of insufficient connection strength between a positioning structure and the tube cap caused by a small radial distance between the inner and outer walls of the optical lens tube cap, improve the processing stability of the optical lens during installation, and ensure that the positioning structure and the optical lens always maintain a stable connection during subsequent use.

[0005] To achieve the above purpose, the technical solution of the utility model is:

[0006] The optical lens tube cap comprises a support section, a lens section is arranged on the top of the support section, the support section and the lens section are both arranged in a hollow cylindrical shape, a positioning structure is arranged around the inner wall of the lens section, the cross-section of the positioning structure is rectangular as a whole, a reinforcement part is arranged between the support section and the lens section, a guide surface 1 is arranged around the inner wall of the reinforcement part to cooperate with the lens section, a transition surface is arranged around the inner wall of the reinforcement part to cooperate with the support section, a connecting part is arranged around the bottom of the support section, and a guide surface 2 is arranged around the inner wall of the connecting part to cooperate with the support section.

[0007] in:

[0008] The outer wall of the lens segment is surrounded by a positioning auxiliary groove.

[0009] The outer diameter of the support segment is greater than the outer diameter of the lens segment.

[0010] The inner diameter of the support segment is larger than the inner diameter of the lens segment.

[0011] The transition surface is arranged to be recessed inwardly in coordination with the inner wall of the reinforcement portion and the inner wall of the support section.

[0012] The guide surface is arranged to protrude outwards in coordination with the inner wall of the reinforcement portion and the inner wall of the lens segment.

[0013] The connecting portion is arranged in an annular shape as a whole, and the outer diameter of the connecting portion is larger than the outer diameter of the supporting section.

[0014] The second guide surface cooperates with the inner wall of the connecting portion and the inner wall of the supporting section to protrude outward.

[0015] The bottom of the connecting part is surrounded by a connecting protrusion.

[0016] The cross section of the connecting protrusion is an inverted isosceles trapezoid.

[0017] The beneficial effects of the utility model are:

[0018] When the radial distance between the inner and outer walls of the optical lens tube cap is small, the rectangular cross-section positioning structure enables more material to be distributed at the connection between the positioning structure and the lens segment, thereby increasing the amount of material at the connection and improving the strength of the connection. At the same time, the rectangular cross-section positioning structure can form good contact and limit with the outer surface of the optical lens. When the optical lens is installed in the lens segment, the positioning structure can limit the axial and radial movement of the optical lens to ensure that the optical lens always remains in the correct position. The first guide surface, the transition surface and the second guide surface can timely remove the gap gas inside the tube cap during the installation of the optical lens, so that the optical lens has good airtightness after being fixed in the tube cap. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a cross-sectional schematic diagram of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the utility model;

[0021] Figure 3 for Figure 1 The enlarged schematic diagram of point A in the middle;

[0022] In the figure:

[0023] 1. Support section; 2. Lens section; 3. Positioning auxiliary groove; 4. Reinforcement part; 5. Guide surface 1; 6. Transition surface; 7. Connection part; 8. Guide surface 2; 9. Connection protrusion; 10. Positioning structure. DETAILED DESCRIPTION

[0024] The present invention will be specifically described and illustrated below in conjunction with the embodiments.

[0025] Example 1

[0026] like Figure 1-3 As shown, the optical lens cap comprises a support segment 1, a lens segment 2 is arranged on the top of the support segment 1, the support segment 1 and the lens segment 2 are both arranged in a hollow cylindrical shape, a positioning structure 10 is arranged around the inner wall of the lens segment 2, and the cross-section of the positioning structure 10 is rectangular as a whole, a reinforcement portion 4 is arranged between the support segment 1 and the lens segment 2, a guide surface 1 5 is arranged around the inner wall of the reinforcement portion 4 to cooperate with the lens segment 2, a transition surface 6 is arranged around the inner wall of the reinforcement portion 4 to cooperate with the support segment 1, a connecting portion 7 is arranged around the bottom of the support segment 1, and a guide surface 2 8 is arranged around the inner wall of the connecting portion 7 to cooperate with the support segment 1.

[0027] When the radial distance between the inner and outer walls of the optical lens cap is small, the rectangular cross-section positioning structure 10 allows more materials to be distributed at the connection between the positioning structure 10 and the lens segment 2, thereby increasing the amount of material at the connection and improving the strength of the connection. At the same time, the rectangular cross-section positioning structure 10 can form good contact and limit with the outer surface of the optical lens. When the optical lens is installed in the lens segment 2, the positioning structure 10 can limit the axial and radial movement of the optical lens, ensuring that the optical lens always remains in the correct position. The guide surface 1 5, the transition surface 6 and the guide surface 2 8 can timely remove the gap gas inside the cap during the installation of the optical lens, so that the optical lens has good air tightness after being fixed in the cap. The support segment 1, the lens segment 2, the positioning auxiliary groove 3, the reinforcement part 4, the connection part 7 and the positioning structure 10 adopt an integrated molding process, and the materials of the support segment 1, the lens segment 2, the positioning auxiliary groove 3, the reinforcement part 4, the connection part 7 and the positioning structure 10 are all made of stainless steel.

[0028] The outer wall of the lens segment 2 is surrounded by a positioning auxiliary groove 3. During the installation of the optical lens, the positioning auxiliary groove 3 can provide support and limit for the optical lens cap to avoid relative displacement between the optical lens cap and the optical lens due to unstable limit.

[0029] The outer diameter of the support segment 1 is greater than the outer diameter of the lens segment 2 .

[0030] The inner diameter of the support segment 1 is larger than the inner diameter of the lens segment 2 .

[0031] The transition surface 6 is concavely arranged inwardly in coordination with the inner wall of the reinforcing portion 4 and the inner wall of the supporting section 1. The transition surface 6 can transfer stress between the reinforcing portion 4 and the supporting section 1, avoid stress concentration, and ensure that the optical lens is stably stressed during installation.

[0032] The guide surface 1 5 cooperates with the inner wall of the reinforcement portion 4 and the inner wall of the lens segment 2 to protrude outward.

[0033] The connecting portion 7 is arranged in a ring shape as a whole, and the outer diameter of the connecting portion 7 is larger than the outer diameter of the supporting section 1 .

[0034] The second guide surface 8 cooperates with the inner wall of the connecting portion 7 and the inner wall of the supporting section 1 to protrude outward.

[0035] A connecting protrusion 9 is arranged around the bottom of the connecting portion 7 .

[0036] The cross section of the connecting protrusion 9 is an inverted isosceles trapezoid. The connecting protrusion 9 can be tightly embedded in the card slot of the tube holder, ensuring that the connection between the optical lens tube cap and the tube holder is always firm and reliable, providing a stable working environment for the optical lens.

[0037] Example 2

[0038] The optical lens cap has an outer diameter of the support segment 1 of 3.73 mm, an inner diameter of the support segment 1 of 3.32 mm, an outer diameter of the lens segment 2 of 2.7 mm, an inner diameter of the lens segment 2 of 2.3 mm, a distance between the positioning structures 10 of 2.16 mm, a height of the connecting portion 7 of 0.13 mm, an outer diameter of the connecting portion 7 of 4.3 mm, a height of the connecting protrusion 9 of 0.07 mm, an angle between the inclined surfaces on both sides of the connecting protrusion 9 of 75°, and a distance between the connecting protrusions 9 of 4 mm.

Claims

1. An optical lens tube cap, comprising a support section (1), a lens section (2) being arranged on the top of the support section (1), the support section (1) and the lens section (2) both being arranged in a hollow cylindrical shape, characterized in that: A positioning structure (10) is arranged around the inner wall of the lens segment (2), and the cross section of the positioning structure (10) is rectangular as a whole. A reinforcing portion (4) is arranged between the support segment (1) and the lens segment (2), and a first guide surface (5) is arranged around the inner wall of the reinforcing portion (4) in cooperation with the lens segment (2). A transition surface (6) is arranged around the inner wall of the reinforcing portion (4) in cooperation with the support segment (1), and a connecting portion (7) is arranged around the bottom of the support segment (1), and a second guide surface (8) is arranged around the inner wall of the connecting portion (7) in cooperation with the support segment (1).

2. The optical lens cap according to claim 1, characterized in that: An auxiliary positioning groove (3) is arranged around the outer wall of the lens segment (2).

3. The optical lens cap according to claim 2, characterized in that: The outer diameter of the support segment (1) is greater than the outer diameter of the lens segment (2).

4. The optical lens cap according to claim 3, characterized in that: The inner diameter of the support segment (1) is greater than the inner diameter of the lens segment (2).

5. The optical lens cap according to claim 1, characterized in that: The transition surface (6) is arranged to be recessed inwardly in cooperation with the inner wall of the reinforcement portion (4) and the inner wall of the support section (1).

6. The optical lens cap according to claim 1, characterized in that: The first guide surface (5) is arranged to protrude outwards in cooperation with the inner wall of the reinforcement portion (4) and the inner wall of the lens segment (2).

7. The optical lens cap according to claim 3, characterized in that: The connecting portion (7) is arranged in a ring shape as a whole, and the outer diameter of the connecting portion (7) is greater than the outer diameter of the supporting section (1).

8. The optical lens cap according to claim 7, characterized in that: The second guide surface (8) is arranged to cooperate with the inner wall of the connecting portion (7) and the inner wall of the supporting section (1) to protrude outwards.

9. The optical lens cap according to claim 1, characterized in that: A connecting protrusion (9) is arranged around the bottom of the connecting portion (7).

10. The optical lens cap according to claim 9, characterized in that: The cross section of the connecting protrusion (9) is an inverted isosceles trapezoid.

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