Spectacle frame for fixing optical lenses by using flexible beams
Through the flexible beam structure and precise machining, the instability and inconsistency problems caused by the deformation of the rubber head in traditional frames are solved, and the stable fixation and high-quality assembly of lenses in poorly controlled environments are achieved.
Patent Information
- Application Number
- CN202422751379.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-11
AI Technical Summary
When fixing lenses in traditional optical frames, the deformation and processing quality of the rubber head are difficult to control, resulting in inconsistent force conditions on the lenses, affecting stability and assembly quality, and making them difficult to use in poorly controlled environments.
A flexible beam structure is adopted, which abuts against the optical lens through the first, second and third bosses to form three supports. The elastic deformation of the flexible beam is used to fix the lens, and the accuracy and consistency of the flexible beam are controlled through precise machining, replacing the traditional rubber-head set screws.
It improves the stability of optical lenses and the consistency of assembly quality, reduces the stress impact caused by temperature changes, and is suitable for use in controlled environments.
Smart Images
Figure CN223486260U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of fixing optical lenses, and in particular to a frame for fixing optical lenses with a flexible beam. Background Technology
[0002] Traditional optical frames use set screws with rubber tips to secure lenses. The deformation of these rubber tips due to temperature changes and over time can affect the stability of the optical frame. Furthermore, the manufacturing quality of these rubber tips is difficult to control, resulting in variations in the contact between different tips and the lenses. This variation leads to different stress states on the lenses under the same screw tightening torque, resulting in inconsistencies in lens assembly quality. These issues of instability and inconsistency make the frames unsuitable for use in poorly controlled environments, such as industrial applications. Therefore, improvements are needed. Utility Model Content
[0003] Therefore, it is necessary to address the problem that traditional optical frames use set screws with rubber tips to fix lenses, which can easily affect the stability of the optical frame. At the same time, due to the different stress states of optical lenses, inconsistencies in lens assembly quality are caused, making the frame difficult to use in poorly controlled environments. Therefore, a frame with flexible beams to fix optical lenses is needed.
[0004] This utility model provides a lens frame that uses a flexible beam to fix optical lenses, comprising:
[0005] The support base has positioning grooves and irregular grooves;
[0006] The first boss is located inside the positioning groove;
[0007] The second boss is located in the positioning groove and is mirror-symmetrical to the first boss.
[0008] The third boss is located in the positioning groove and on the vertical surface between the first boss and the second boss.
[0009] A flat-end set screw is threaded onto a support base, with one end extending out of the support base and the other end extending into a shaped groove.
[0010] When the optical lens is placed in the positioning groove, a flexible beam is formed between the positioning groove and the irregular groove. The third protrusion is located on the flexible beam, and the flat-end set screw abuts against the flexible beam. The first protrusion, the second protrusion, and the third protrusion all abut against the optical lens.
[0011] In one embodiment, the support base is provided with symmetrical ear-expanding grooves, the ear-expanding grooves are connected to the positioning grooves, and the third boss is located between adjacent ear-expanding grooves.
[0012] In one embodiment, the irregular groove includes a first arc-shaped portion, and a second arc-shaped portion is provided at both ends of the first arc-shaped portion. The second arc-shaped portion corresponds one-to-one with the ear-expanding groove, and the arc center of the second arc-shaped portion coincides with the arc center of the ear-expanding groove.
[0013] In one embodiment, the radius of the first arcuate portion is greater than the radius of the second arcuate portion.
[0014] In one embodiment, when the first boss, the second boss, and the third boss all abut against the optical lens, an extension groove is formed between the support and the optical lens.
[0015] In one embodiment, the frame for fixing optical lenses with a flexible beam further includes an adjustment seat with a plurality of screws threadedly connected to it. One end of each screw is hinged to a support seat, and the other end of each screw is fixedly connected to a knob.
[0016] In one embodiment, a spring is connected between the adjusting seat and the supporting seat, and the spring is located between adjacent screws.
[0017] In one embodiment, the adjusting seat has a threaded hole.
[0018] The aforementioned frame with flexible beams for fixing optical lenses forms three "lines" of support when the first, second, and third protrusions on the flexible beams are fixing the optical lenses. On one hand, the flexible beams have sufficient elasticity to deform under the action of the flat-end set screws, thereby fixing the optical lenses. Furthermore, the thickness of the flexible beams along the radial direction of the optical lenses ensures that the deformation along the contact "line" between the flexible beams and the optical lenses is relatively consistent. At the same time, due to the elasticity of the flexible beams, the stress caused by different deformation values between the optical lenses and the support base can be reduced when the temperature changes. By using flexible beams instead of traditional rubber-headed set screws, the stability of optical indicators can be improved. On the other hand, by controlling the machining process, a flexible beam structure with sufficient precision and consistent quality can be obtained. By controlling the optical lens assembly process, a more consistent optical lens assembly quality can be ultimately obtained, thus facilitating the use of the frame in poorly controlled environments. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0020] Figure 1This is a three-dimensional structural diagram of a frame for fixing optical lenses with flexible beams in one embodiment.
[0021] Figure 2 This is a front view schematic diagram of a frame structure in one embodiment, in which optical lenses are fixed with flexible beams.
[0022] Figure 3 This is a schematic diagram of the support structure in one embodiment.
[0023] Figure label:
[0024] 100. Adjusting seat; 110. Screw; 120. Knob; 130. Spring; 140. Threaded hole; 200. Support seat; 210. Positioning groove; 220. Irregular groove; 221. First arc-shaped part; 222. Second arc-shaped part; 230. Ear-expanding groove; 240. Extension groove; 300. First boss; 400. Second boss; 500. Third boss; 600. Flat-end set screw; 700. Flexible beam. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0026] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.
[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.
[0028] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0029] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this specification belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.
[0030] The following is combined with Figure 1-Figure 3 This invention describes an eyeglass frame that uses a flexible beam to fix optical lenses.
[0031] like Figure 1 and Figure 2 As shown, in one embodiment, a frame for fixing optical lenses with a flexible beam includes a support 200, a first boss 300, a second boss 400, a third boss 500, and a flat-end set screw 600.
[0032] The support base 200 has a positioning groove 210 and an irregular groove 220.
[0033] It should be noted that the material at the optical lens mounting location is removed by milling to form the positioning groove 210, and the irregular groove 220 is formed by wire cutting.
[0034] The first boss 300 is located in the positioning groove 210.
[0035] The second boss 400 is located in the positioning groove 210, and the second boss 400 is mirror-symmetrical to the first boss 300.
[0036] The third boss 500 is located in the positioning groove 210, and the third boss 500 is located on the vertical surface between the first boss 300 and the second boss 400.
[0037] The flat-end set screw 600 is threaded onto the support base 200, with one end of the flat-end set screw 600 extending out of the support base 200 and the other end of the flat-end set screw 600 extending into the irregular groove 220.
[0038] It should be noted that the flat-end set screw 600 is of M3 specification. Applying a tightening torque of 0.3 N·m to 0.6 N·m to the flat-end set screw 600 will fix the optical lens.
[0039] When the optical lens is placed in the positioning groove 210, a flexible beam 700 is formed between the positioning groove 210 and the irregular groove 220. The third boss 500 is located on the flexible beam 700, and the flat-end set screw 600 abuts against the flexible beam 700. The first boss 300, the second boss 400 and the third boss 500 all abut against the optical lens.
[0040] It should be noted that the thickness of the flexible beam 700 is 0.8 mm. In the directional stability test of this frame with temperature change, the directional drift of the half-inch two-dimensional adjustable frame with this optical lens fixing method is less than 2 μrad within 24 hours, and the directional stability with temperature change is less than 1.8 μrad / ℃, which shows excellent directional stability.
[0041] This eyeglass frame, which uses a flexible beam to fix optical lenses, forms three "lines" of support when fixing the optical lenses by employing a first protrusion 300, a second protrusion 400, and a third protrusion 500 on the flexible beam 700. The flexible beam 700 has sufficient elasticity to deform under the action of the flat-end set screw 600, thereby fixing the optical lenses. Furthermore, the thickness of the flexible beam 700 along the radial direction of the optical lens ensures that the deformation along the contact "line" between the flexible beam 700 and the optical lens is more consistent. At the same time, due to the elasticity of the flexible beam 700, the stress caused by different deformation values between the optical lens and the support 200 can be reduced when the temperature changes. By using the flexible beam 700 instead of the traditional rubber-headed set screw, the stability of optical indicators can be improved. In addition, by controlling the machining process, a flexible beam 700 structure with sufficient precision and consistent quality can be obtained. By controlling the optical lens assembly process, a more consistent optical lens assembly quality can be ultimately obtained, thus facilitating the use of this eyeglass frame in poorly controlled environments.
[0042] In this embodiment, the support base 200 is symmetrically provided with ear-expanding grooves 230, which are connected to the positioning grooves 210. The third boss 500 is located between adjacent ear-expanding grooves 230.
[0043] By adding the ear groove 230, the elasticity of the flexible beam 700 can be improved.
[0044] In this embodiment, see Figure 3 The irregular groove 220 includes a first arc-shaped portion 221, and a second arc-shaped portion 222 is provided at both ends of the first arc-shaped portion 221. The second arc-shaped portion 222 corresponds to the ear-expanding groove 230 one by one, and the arc center of the second arc-shaped portion 222 coincides with the arc center of the ear-expanding groove 230.
[0045] It should be noted that the radius of the first arc-shaped portion 221 is larger than the radius of the second arc-shaped portion 222.
[0046] In this embodiment, when the first boss 300, the second boss 400 and the third boss 500 all abut against the optical lens, an extension groove 240 is formed between the support 200 and the optical lens, thereby facilitating the increase of the extension space of the flexible beam 700 and thus facilitating the fixing of optical lenses of different sizes.
[0047] In this embodiment, the frame for fixing optical lenses with flexible beams also includes an adjustment seat 100. Multiple screws 110 are threadedly connected to the adjustment seat 100. One end of the screw 110 is hinged to the support seat 200, and the other end of the screw 110 is fixedly connected to a knob 120.
[0048] It should be noted that the adjusting seat 100 is L-shaped, and there are three screws 110, which are located at both ends and the turning point of the adjusting seat 100, respectively.
[0049] Rotating the knob 120 moves the screw 110, thereby adjusting the distance between the support 200 and the adjustment seat 100, thus facilitating the adjustment of the optical lens angle as needed.
[0050] In this embodiment, a spring 130 is connected between the adjusting seat 100 and the support seat 200, and the spring 130 is located between adjacent screws 110.
[0051] The elasticity of the spring 130 allows the support 200 to automatically adjust the distance between itself and the adjusting seat 100 according to the length of the screw 110. To improve the accuracy of the adjustment, four springs 130 are used.
[0052] In this embodiment, the adjusting seat 100 is provided with a threaded hole 140.
[0053] The design of the threaded hole 140 makes it easy to install the frame on the workbench.
[0054] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0055] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.
Claims
1. A frame for fixing optical lenses with a flexible beam, characterized in that, include: The support base has positioning grooves and irregular grooves; The first boss is located inside the positioning groove; The second boss is located in the positioning groove and is mirror-symmetrical to the first boss. The third boss is located in the positioning groove and on the vertical surface between the first boss and the second boss. A flat-end set screw is threaded onto a support base, with one end extending out of the support base and the other end extending into a shaped groove. When the optical lens is placed in the positioning groove, a flexible beam is formed between the positioning groove and the irregular groove. The third protrusion is located on the flexible beam, and the flat-end set screw abuts against the flexible beam. The first protrusion, the second protrusion, and the third protrusion all abut against the optical lens.
2. The eyeglass frame with a flexible beam for fixing optical lenses according to claim 1, characterized in that, The support base is symmetrically provided with ear-expanding grooves, which are connected to the positioning grooves. The third boss is located between adjacent ear-expanding grooves.
3. The eyeglass frame with a flexible beam for fixing optical lenses according to claim 2, characterized in that, The irregular groove includes a first arc-shaped portion, and a second arc-shaped portion is provided at both ends of the first arc-shaped portion. The second arc-shaped portion corresponds one-to-one with the ear-expanding groove, and the arc center of the second arc-shaped portion coincides with the arc center of the ear-expanding groove.
4. The eyeglass frame with a flexible beam for fixing optical lenses according to claim 3, characterized in that, The radius of the first arc-shaped portion is greater than the radius of the second arc-shaped portion.
5. The eyeglass frame with a flexible beam for fixing optical lenses according to claim 4, characterized in that, When the first protrusion, the second protrusion, and the third protrusion all abut against the optical lens, an extension groove is formed between the support and the optical lens.
6. The eyeglass frame with a flexible beam for fixing optical lenses according to any one of claims 1 to 5, characterized in that, It also includes an adjustment seat, on which multiple screws are threadedly connected. One end of each screw is hinged to a support seat, and the other end of each screw is fixedly connected to a knob.
7. The eyeglass frame with a flexible beam for fixing optical lenses according to claim 6, characterized in that, A spring is connected between the adjusting seat and the supporting seat, and the spring is located between adjacent screws.
8. The eyeglass frame with a flexible beam for fixing optical lenses according to claim 7, characterized in that, The adjusting seat has a threaded hole.