Flexible mounting structure of optical lens and optical lens
By introducing elastic structure and positioning steps into the optical lens installation structure, the stability and inertial force problems of optical lenses in high temperature environments are solved, and convenient and high-precision disassembly and assembly are achieved, adapting to the needs of optical lenses in different scenarios and providing stability and flexible installation solutions.
Patent Information
- Application Number
- CN202421102752.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-05-20
AI Technical Summary
The existing optical lenses are easily unstable due to thermal deformation in high temperature environments, and are relatively moved due to inertial forces under acceleration or deceleration conditions, and damage caused by dust and volatiles adhesion, making it difficult to achieve convenient and high-precision repeated installation.
Design a flexible installation structure of an optical lens including a lens barrel and a press ring. The front of the press ring is equipped with an elastic structure and a positioning step, which is fixed by meshing and fixing of the internal thread and the external thread, and the elastic structure and step combination are used to achieve stable installation and convenience. Disassemble and assemble optical lenses to adapt to different scenarios.
It realizes the stability of the optical lens in different usage scenarios, relieves heat deformation, and realizes high-precision repeated disassembly and assembly through the coordination of positioning steps and stop-sinking steps, adapts to optical lenses of various diameters and quality, and is universally applicable. .
Smart Images
Figure CN222189558U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of optical lens design and manufacturing, in particular to an optical lens flexible installation structure and an optical lens. Background Art
[0002] Due to the diversification of lens usage scenarios, the requirements for the installation of optical lenses in lenses are becoming increasingly higher. The stability and consistency of the installation of optical lenses have a direct impact on the surface shape of the optical lenses in the lens and the gap between the optical lenses. In industrial production, there is often a high-temperature working environment, and there are also often acceleration or deceleration conditions. High temperature often causes thermal deformation of the optical lens. Therefore, the installation of the optical lens needs to adapt to the uncertain deformation during use. Under the condition of acceleration or deceleration, due to the existence of inertia, the optical lens will tend to move relative to the lens. Therefore, the friction force generated by the preload force during the installation of the optical lens can balance the inertia force generated by acceleration or deceleration to prevent the relative movement of the optical lens; at the same time, there will be various dust and volatiles in some industrial production environments. This dust and volatiles attached to the optical lens will cause damage to the optical lens and need to be replaced. Therefore, the installation structure of the optical lens is required to be convenient and have a high repeatability. Installation accuracy. Utility Model Content
[0003] The purpose of the utility model is to provide an optical lens flexible mounting structure and an optical lens in response to the existing technical status, which can not only ensure the stability of the optical lens after installation in different usage scenarios, and relieve the thermal deformation of the optical lens caused by temperature changes and the like, but also its pressure ring can be repeatedly disassembled and assembled conveniently and with high precision, and has universal applicability.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A flexible mounting structure for an optical lens comprises a lens barrel and a pressing ring; a stop-sinking step and an internal thread are sequentially arranged on the inner wall of the lens barrel in a direction from the front to the rear of the lens barrel; an elastic structure is arranged at the front of the pressing ring, and a positioning step and an external thread matching the internal thread arranged in the lens barrel are sequentially arranged on the outer wall of the pressing ring in a direction from the front to the rear of the pressing ring, and after the pressing ring is completely assembled and fixed in the lens barrel through the meshing of the internal thread and the external thread, the positioning step on the pressing ring abuts against the stop-sinking step arranged in the lens barrel.
[0006] Furthermore, a plurality of strip grooves are evenly arranged at the same height along the circumferential direction on the side wall of the pressing ring, and a boss is arranged on the front end surface of the pressing ring at a position corresponding to each strip groove, and the boss and the strip groove together constitute an elastic structure.
[0007] Furthermore, three strip grooves are evenly arranged on the side wall of the pressure ring along the circumferential direction.
[0008] Furthermore, the strip-shaped groove is a waist-shaped groove.
[0009] Furthermore, the position of the boss on the front end surface of the pressure ring corresponds to the midpoint of the corresponding strip groove.
[0010] Furthermore, the boss is a square structure.
[0011] Furthermore, the pressure ring is a component made of beryllium bronze material.
[0012] An optical lens comprises an optical lens, a spacer and the above-mentioned optical lens flexible mounting structure. The optical lens, the spacer and the pressure ring are sequentially assembled in a lens barrel. The elastic structure arranged at the front of the pressure ring abuts against the spacer and is in a compressed state.
[0013] The beneficial effects of the utility model are:
[0014] 1. The utility model adds an elastic structure at the front of the pressure ring, which can ensure the stability of the optical lens after installation in different usage scenarios and relieve the thermal deformation of the optical lens caused by temperature changes and other reasons;
[0015] 2. The pressing ring of the utility model is installed and limited by the cooperation between the positioning step and the stop step, so that the pressing ring can be repeatedly disassembled and assembled conveniently and with high precision. At the same time, by adjusting the size of the elastic structure on the pressing ring and the pressing depth of the pressing ring, it can be well adapted to optical lenses of various calibers, qualities and various application scenarios, and has universal applicability. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a three-dimensional diagram of a flexible mounting structure for an optical lens of the utility model;
[0017] Figure 2 This is a schematic cross-sectional structure diagram of a flexible mounting structure for an optical lens of the utility model;
[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of a lens barrel in a flexible mounting structure of an optical lens of the utility model;
[0019] Figure 4 This is a schematic diagram of the structure of a pressure ring in a flexible installation structure for an optical lens of the utility model;
[0020] Figure 5 A stereogram of an optical lens of the utility model;
[0021] Figure 6 The utility model is a schematic diagram of the cross-sectional structure of an optical lens.
[0022] Marking instructions: 1. Lens barrel, 1-1. Stop step, 2. Pressing ring, 2-1. Positioning step, 3. Strip groove, 4. Boss, 5. Optical lens, 6. Spacer. DETAILED DESCRIPTION
[0023] The utility model will be further described below in conjunction with the accompanying drawings.
[0024] See also Figures 1 to 4 As shown, a flexible mounting structure of an optical lens includes a lens barrel 1 and a pressure ring 2.
[0025] Along the direction from the front to the rear of the lens barrel 1, a stop step 1-1 and an internal thread are sequentially provided on the inner wall of the lens barrel 1.
[0026] The front of the pressing ring 2 is provided with an elastic structure, and in the direction from the front to the rear of the pressing ring 2, the outer wall of the pressing ring 2 is provided with positioning steps 2-1 and external threads matching the internal threads provided in the lens barrel 1. Through the engagement of the external threads provided on the pressing ring 2 with the internal threads provided in the lens barrel 1, the pressing ring 2 can be completely assembled into the lens barrel 1.
[0027] It should be noted that after the pressing ring 2 is completely assembled and fixed in the lens barrel 1 through the engagement of the internal thread and the external thread, the positioning step 2 - 1 set on the pressing ring 2 abuts against the anti-sinking step 1 - 1 set in the lens barrel 1 .
[0028] Specifically, a plurality of strip grooves 3 are evenly arranged at the same height along the circumferential direction on the side wall of the pressing ring 2, and a boss 4 is arranged on the front end surface of the pressing ring 2 at a position corresponding to each strip groove 3, and the boss 4 and the strip groove 3 together constitute an elastic structure.
[0029] More specifically, three strip grooves 3 are evenly arranged along the circumferential direction on the side wall of the pressing ring 2, and the strip grooves 3 are waist-shaped grooves; the position of the boss 4 on the front end surface of the pressing ring 2 corresponds to the midpoint of the corresponding strip groove 3; the boss 4 is a square structure.
[0030] In the above technical solution, preferably, the pressing ring 2 is a beryllium bronze material component. The pressing ring 2 is made of beryllium bronze with good elasticity to ensure the performance of the elastic structure provided on the pressing ring 2. In addition, the pressing ring 2 should also be subjected to aging treatment to ensure its stability.
[0031] See also Figures 5-6 As shown, as an application, an optical lens includes an optical lens 5, a spacer ring 6 and the above-mentioned optical lens flexible mounting structure. The optical lens 5, the spacer ring 6 and the pressure ring 2 are assembled in sequence in the lens barrel 1, and the elastic structure provided at the front of the pressure ring 2 is against the spacer ring 6 and is in a compressed state.
[0032] Specifically, after the optical lens 5 and the spacer 6 are assembled to the lens barrel 1 in sequence, the pressure ring 2 is assembled. During the assembly of the pressure ring 2, before the positioning step 2-1 and the stop step 1-1 are in contact, the boss 4 contacts the upper surface of the spacer 6 and the pressure ring 2 sinks, and the elastic structure is deformed to generate elastic force. During the further sinking of the pressure ring 2, the elastic structure is further deformed and generates a greater elastic force until the positioning step 2-1 contacts the stop step 1-1, at which time the elastic force generated by the deformation of the elastic structure reaches a preset value.
[0033] Therefore, according to the different preload requirements of the optical lens 5 in different occasions, we can reasonably design the size of the elastic structure on the pressing ring 2 and the pressing depth of the pressing ring 2 through finite element simulation.
[0034] It should be noted that during design and simulation, it is necessary to ensure that when the pressing ring 2 is pressed down to a predetermined depth, the elastic structure on it is still in the elastic deformation stage to avoid plastic deformation resulting in the preload force provided being inconsistent with actual requirements.
[0035] In general, on the one hand, the utility model adds an elastic structure at the front part of the pressure ring 2, which can ensure the stability of the optical lens 5 after installation in different usage scenarios, and relieve the thermal deformation of the optical lens 5 caused by temperature changes and other reasons. On the other hand, the pressure ring 2 of the utility model and the lens barrel 1 are installed and limited by the cooperation between the positioning step 2-1 and the stop step 1-1, so that the pressure ring 2 can be repeatedly disassembled and assembled conveniently and with high precision. At the same time, by adjusting the size of the elastic structure on the pressure ring 2 and the pressing depth of the pressure ring 2, it can be well adapted to optical lenses 5 of various calibers, qualities and various application scenarios, and has universal applicability.
[0036] Of course, the above are only preferred implementations of the present utility model, and are not intended to limit the scope of use of the present utility model. Therefore, any equivalent changes made to the principles of the present utility model should be included in the protection scope of the present utility model.
Claims
1. An optical lens flexible mounting structure, characterized in that: It comprises a lens barrel and a pressing ring; a stop-sinking step and an internal thread are sequentially arranged on the inner wall of the lens barrel in a direction from the front to the rear of the lens barrel; an elastic structure is arranged at the front of the pressing ring, and a positioning step and an external thread matching the internal thread in the lens barrel are sequentially arranged on the outer wall of the pressing ring in a direction from the front to the rear of the pressing ring, and after the pressing ring is completely assembled and fixed in the lens barrel through the engagement of the internal thread and the external thread, the positioning step on the pressing ring abuts against the stop-sinking step in the lens barrel.
2. The optical lens flexible mounting structure according to claim 1, characterized in that: A plurality of strip grooves are evenly arranged at the same height on the side wall of the pressing ring along the circumferential direction, and a boss is arranged on the front end surface of the pressing ring at a position corresponding to each strip groove, and the boss and the strip groove together form an elastic structure.
3. The optical lens flexible mounting structure according to claim 2, characterized in that: Three strip grooves are evenly arranged on the side wall of the pressure ring along the circumferential direction.
4. The optical lens flexible mounting structure according to claim 2, characterized in that: The strip-shaped groove is a waist-shaped groove.
5. The optical lens flexible mounting structure according to claim 2, characterized in that: The position of the boss on the front end surface of the pressure ring corresponds to the midpoint of the corresponding strip groove.
6. The optical lens flexible mounting structure according to claim 2, characterized in that: The boss is a square structure.
7. The optical lens flexible mounting structure according to any one of claims 1 to 6, characterized in that: The pressing ring is a component made of beryllium bronze material.
8. An optical lens, characterized in that: It comprises an optical lens, a spacer and the flexible mounting structure of the optical lens as claimed in any one of claims 1 to 7. The optical lens, the spacer and the pressure ring are sequentially assembled in the lens barrel. The elastic structure arranged at the front of the pressure ring abuts against the spacer and is in a compressed state.