Ultra-wide-angle hemispherical lens tool fixture

Abstract

The utility model relates to the technical field of vacuum coating, and provides an ultra-wide-angle hemispherical lens tool fixture which comprises a clamping seat and an elastic pressing mechanism, the clamping seat is connected with a chuck, a clamping groove is formed in the clamping seat, and the clamping groove is suitable for containing ultra-wide-angle hemispherical lens elements of different sizes; the elastic pressing mechanism is telescopically arranged on one side of the clamping groove, and the elastic pressing mechanism is suitable for pressing and fixing the ultra-wide-angle hemispherical lens element placed in the clamping groove. According to the tool clamp, the same tool clamp can clamp elements of different sizes, and the applicability of the tool clamp is improved.

Description

Technical Field

[0001] This utility model relates to the field of vacuum coating technology, and in particular to a tooling fixture for an ultra-wide-angle hemispherical lens. Background Technology

[0002] With the continuous advancement and development of optical technology, the precision requirements for coatings on high-end optical components are constantly increasing. Improvements in optical coating technology and advanced thin-film design methods can achieve higher precision and performance to meet the stringent requirements of optical components in various fields.

[0003] Existing methods for fabricating full-aperture optical thin films for ultra-wide-angle hemispherical lenses mostly employ sandwich fixtures. While this method is simple to operate, there are dimensional tolerances between parts, and the fixtures can only be manufactured according to theoretical dimensions, which cannot meet the needs of components of all sizes. In addition, due to the weight of the components themselves, there will be marks on the contact surface between the components and the fixtures, thereby reducing production efficiency. Utility Model Content

[0004] This utility model provides a tooling fixture for an ultra-wide-angle hemispherical lens, which solves the problem that existing fixtures can only be manufactured according to theoretical dimensions and have poor adaptability to components of different sizes. It enables the same tooling fixture to clamp components of different sizes, thereby improving the applicability of the tooling fixture.

[0005] This utility model provides a fixture for an ultra-wide-angle hemispherical lens, comprising:

[0006] A card holder, which is connected to a chuck, has a card slot on it, which is suitable for placing ultra-wide-angle hemispherical lens elements of different sizes;

[0007] An elastic clamping mechanism is provided on one side of the slot, and the elastic clamping mechanism is suitable for clamping and fixing an ultra-wide-angle hemispherical lens element placed in the slot.

[0008] According to the present invention, an ultra-wide-angle hemispherical lens tooling fixture is provided. The elastic clamping mechanism includes an elastic element and a top block assembly. The top block assembly has a connecting end and an abutting end disposed opposite to each other. The abutting end is located in the slot and is adapted to abut against the ultra-wide-angle hemispherical lens element in the slot. The elastic element is connected to the connecting end and is adapted to provide a pre-tightening force to the top block assembly toward the ultra-wide-angle hemispherical lens element.

[0009] According to the present invention, a fixture for an ultra-wide-angle hemispherical lens is provided, wherein a placement groove is provided on the outer periphery of the slot, the placement groove is connected to the slot, one end of the elastic member is connected to the side wall of the placement groove away from the slot, and the top block assembly is movably disposed between the placement groove and the slot.

[0010] According to the present invention, an ultra-wide-angle hemispherical lens fixture is provided, wherein the placement slot and the card slot are connected by a guide slot, and the top block assembly is provided with a guide part between the connecting end and the abutting end. The guide part cooperates with the guide slot to guide the top block assembly.

[0011] According to the present invention, an ultra-wide-angle hemispherical lens tooling fixture is provided, wherein the end face of the abutting end is configured to conform to the outer contour of the ultra-wide-angle hemispherical lens element.

[0012] According to the present invention, an ultra-wide-angle hemispherical lens tooling fixture is provided, wherein the top block assembly includes a connecting block, a guide block, and a pressing block. The connecting block and the pressing block are respectively connected to the two ends of the guide block. The guide block is disposed corresponding to the guide groove. The connecting block is disposed in the placement groove and connected to the elastic element. The pressing block is disposed in the slot and abuts against the ultra-wide-angle hemispherical lens element.

[0013] According to the present invention, an ultra-wide-angle hemispherical lens fixture is provided, wherein the slot includes a placement part and a pressing part, the pressing part is disposed on the side of the placement part near the placement slot, the placement part is suitable for placing an ultra-wide-angle hemispherical lens element, and the pressing part is suitable for accommodating the pressing block, wherein the depth of the pressing part is greater than the height of the placement part.

[0014] According to the present invention, an ultra-wide-angle hemispherical lens fixture is provided, the ultra-wide-angle hemispherical lens fixture further includes a cover plate, the cover plate covers the top of the placement groove, and the cover plate has a guide slope on the side near the groove, the guide slope is suitable for avoiding the groove.

[0015] According to the present invention, an ultra-wide-angle hemispherical lens fixture is provided, wherein the fixture includes a first fixture strip and a second fixture strip, the first fixture strip and the second fixture strip are spliced ​​together, the first fixture strip has a plurality of slots along its own length direction, and the second fixture strip has a plurality of placement slots corresponding to the slots along its own length direction.

[0016] According to the present invention, an ultra-wide-angle hemispherical lens fixture is provided, wherein one end of the fixture along its own length direction is connected to the chuck by a U-shaped bayonet, and the other end is provided with an overlapping part that overlaps with the chuck.

[0017] The ultra-wide-angle hemispherical lens fixture provided by this utility model has an elastic clamping mechanism on one side of the slot. The ultra-wide-angle hemispherical lens element placed in the slot is clamped and fixed by the elastic clamping. In this way, ultra-wide-angle hemispherical lens elements of different sizes can be clamped under the same fixture, thus improving the applicability of the fixture. Attached Figure Description

[0018] 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.

[0019] Figure 1 This is a schematic diagram of the assembly and connection of the ultra-wide-angle hemispherical lens tooling fixture and chuck provided by this utility model.

[0020] Figure 2 This is a schematic diagram of an embodiment of the ultra-wide-angle hemispherical lens fixture provided by this utility model.

[0021] Figure 3 yes Figure 2 A schematic diagram of the Chinese Super League wide-angle hemispherical lens fixture after removing the cover plate.

[0022] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0023] Figure label:

[0024] 10. Fixtures and fixtures for ultra-wide-angle hemispherical lenses;

[0025] 100, Card holder; 110, First card strip; 111, Card slot; 111a, Placement part; 111b, Pushing part; 112, U-shaped bayonet; 113, Overlapping part; 120, Second card strip; 121, Placement groove; 122, Guide groove;

[0026] 200. Elastic clamping mechanism; 210. Elastic element; 220. Top block assembly; 221. Connecting block; 222. Guide block; 223. Pressure block;

[0027] 300. Cover plate; 310. Guide slope;

[0028] 20. Chuck;

[0029] 30. Ultra-wide-angle hemispherical lens element. Detailed Implementation

[0030] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0031] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0033] In this embodiment of the 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 is in indirect contact with the second feature 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 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 that the first feature is at a lower horizontal level than the second feature.

[0034] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0035] With the development of high-end optical system applications, the precision requirements for optical components are becoming increasingly stringent. These precision requirements involve a variety of parameters, especially for coated products such as lenses, which involve multiple requirements for the coating layers. The precision requirements for coatings in high-end optical components also vary across different fields and applications. Optical coating involves depositing one or more layers of material onto the surface of an optical component to alter its optical properties or improve its optical performance.

[0036] Generally speaking, the coating precision of high-end optical components is mainly reflected in the following aspects:

[0037] Optical performance: The coatings of high-end optical components should possess characteristics such as high transmittance, low reflectance, and uniform optical properties. This is crucial for the effectiveness of the optical components and the overall performance of the system.

[0038] Film thickness control precision: The coating of high-end optical components requires precise control of the film thickness to ensure the consistency and stability of optical performance. Thickness control precision requirements are typically at the nanometer level or higher to meet specific optical requirements.

[0039] Film uniformity and smoothness: During the coating process on the surface of optical components, the uniformity and smoothness of the film are crucial to the optical performance of the system. High-end optical components require high uniformity across the entire surface to ensure consistent optical performance across different areas.

[0040] Durability and stability: The coatings of high-end optical components should have good durability and stability, maintain excellent optical performance under various environmental and application conditions, and have a long service life.

[0041] Because the planetary disk of the coating machine will rotate and revolve during the coating process, there are safety risks to the ultra-wide-angle lens with special structure during the coating process and the unloading process after coating. Therefore, the lens needs to be clamped during coating.

[0042] With the continuous advancement and development of optical technology, the precision requirements for coatings on high-end optical components are constantly increasing. Improvements in optical coating technology and advanced thin-film design methods can achieve higher precision and performance to meet the stringent requirements of optical components in various fields.

[0043] Existing methods for fabricating full-aperture optical thin films for ultra-wide-angle hemispherical lenses mostly employ sandwich fixtures. While this method is simple to operate, there are dimensional tolerances between parts, and the fixtures can only be manufactured according to theoretical dimensions, which cannot meet the needs of components of all sizes. In addition, due to the weight of the components themselves, there will be marks on the contact surface between the components and the fixtures, thereby reducing production efficiency.

[0044] The following is combined with Figures 1 to 4 The present invention will provide a detailed description of the ultra-wide-angle hemispherical lens fixture provided in the present invention through specific embodiments and application scenarios.

[0045] In the embodiments of the utility model, reference is made to... Figures 1 to 4 The ultra-wide-angle hemispherical lens fixture 10 includes a mounting base 100 and an elastic clamping mechanism 200. The mounting base 100 is connected to the chuck 20. The mounting base 100 is provided with a slot 111, which is suitable for placing ultra-wide-angle hemispherical lens elements 30 of different sizes. The elastic clamping mechanism 200 is telescopically provided on one side of the slot 111. The elastic clamping mechanism 200 is suitable for clamping and fixing the ultra-wide-angle hemispherical lens element 30 placed in the slot 111.

[0046] The chuck 100, as the main part of the tooling fixture, provides a stable support structure for the entire device. The chuck 100 is responsible for supporting the ultra-wide-angle hemispherical lens element 30 and, through its connection interface with the coating equipment chuck 20, ensures the stability of the entire fixture during the coating process.

[0047] The slots 111 on the holder 100 are designed to cover a variety of common lens sizes as much as possible. For example, a larger diameter slot 111 can be provided to cover lenses within that diameter range, so that the same holder can be used for components of various specifications.

[0048] The slot 111 not only provides support for the component but also serves as a positioning reference. The precisely designed shape of the slot 111 ensures the correct position and orientation of the component within the fixture, supporting subsequent coating processes.

[0049] The elastic clamping mechanism 200 is a core component of the tooling fixture. The elastic clamping mechanism 200 is extendable and applies appropriate clamping force to the ultra-wide-angle hemispherical lens element 30 placed in the slot 111. This ensures that the ultra-wide-angle hemispherical lens element 30 will not shift or fall off due to vibration or external force during the coating process, guaranteeing the stability and consistency of the coating.

[0050] Because the elastic clamping mechanism 200 is telescopic, it can accommodate components of different sizes. When a component is placed in the slot 111, the clamping mechanism adjusts its telescopic range according to the actual size of the component, thereby achieving a tight fit and uniform clamping. This allows the tooling fixture to be applicable to a wider range of components.

[0051] This application provides an elastic clamping mechanism 200 on one side of the slot 111 to clamp and fix the ultra-wide-angle hemispherical lens element 30 placed in the slot 111. In this way, ultra-wide-angle hemispherical lens elements 30 of different sizes can be clamped under the same tooling fixture, thereby improving the applicability of the tooling fixture.

[0052] Reference Figure 2 In some embodiments, the elastic clamping mechanism 200 includes an elastic element 210 and a top block assembly 220. The top block assembly 220 has a connecting end and an abutting end disposed opposite to each other. The abutting end is located in a slot 111 and is adapted to abut against an ultra-wide-angle hemispherical lens element 30 in the slot 111. The elastic element 210 is connected to the connecting end and is adapted to provide a preload force to the top block assembly 220 toward the ultra-wide-angle hemispherical lens element 30.

[0053] Understandably, in this embodiment, the elastic element 210 is connected to the connecting end of the top block assembly 220, and provides a continuous preload to the top block assembly 220 through its elastic deformation characteristics. The preload ensures that the abutting end of the top block assembly 220 can always fit tightly against the ultra-wide-angle hemispherical lens element 30, maintaining the stability of the element even if slight vibrations or temperature changes occur during the coating process.

[0054] One end of the top block assembly 220 is a connecting end, which is used to connect with the elastic element 210 and receive the preload provided by the elastic element 210.

[0055] The other end of the top block assembly 220 is the abutment end, located inside the slot 111, and in direct contact with the ultra-wide-angle hemispherical lens element 30. It is used to transmit the preload force of the elastic element 210 to the element to ensure that the element does not move during the coating process.

[0056] The top block assembly 220 can extend and retract under the action of the elastic member 210. When components of different sizes are placed in the slot 111, the top block assembly 220 can automatically adjust its position according to the size of the component to provide appropriate clamping force. When it is necessary to place or remove a component, the operator can manually push the top block assembly 220 backward to make enough space for the placement or removal of the component.

[0057] Optionally, the elastic element 210 can be a spring or a compression spring, etc., without special limitation.

[0058] Reference Figure 3 and Figure 4 In some embodiments, the card holder 100 is provided with a placement groove 121 on the outer periphery of the card slot 111. The placement groove 121 is connected to the card slot 111. One end of the elastic member 210 is connected to the side wall of the placement groove 121 away from the card slot 111. The top block assembly 220 is movably disposed between the placement groove 121 and the card slot 111.

[0059] Understandably, the placement slot 121 is located on the card holder 100 and communicates with the card slot 111, providing space for the installation and movement of the elastic element 210 and the top block assembly 220. At the same time, the design of the placement slot 121 allows the elastic element 210 and the top block assembly 220 to be securely installed on the card holder 100, ensuring that they will not loosen or shift during use.

[0060] One end of the elastic element 210 is connected to the side wall of the placement groove 121 away from the slot 111, and the other end is connected to the top block assembly 220. In this way, the elastic element 210 can continuously apply a preload force to the top block assembly 220. The preload force ensures that the top block assembly 220 can always press the ultra-wide-angle hemispherical lens element 30 tightly within the slot 111, ensuring the stability of the element during the coating process.

[0061] The top block assembly 220 is movably disposed between the placement slot 121 and the retaining slot 111, and can be extended and adjusted according to the size of the ultra-wide-angle hemispherical lens element 30 to ensure that the element can be firmly pressed. When it is necessary to place or remove the element, the operator can manually move the top block assembly 220 to slide it between the placement slot 121 and the retaining slot 111, thereby facilitating the loading and unloading of the element.

[0062] During the coating process, the top block assembly 220 presses the component into the slot 111 by the pre-tightening force provided by the elastic element 210, reducing the risk of displacement caused by external factors, thereby improving the uniformity and quality of the coating.

[0063] The design of the placement slot 121 makes it easier to move the top block assembly 220, simplifies the component loading and unloading process, and improves work efficiency.

[0064] Reference Figure 3 and Figure 4 In some embodiments, the placement slot 121 and the card slot 111 are connected by the guide slot 122. The top block assembly 220 is provided with a guide portion between the connecting end and the abutting end. The guide portion cooperates with the guide slot 122 to guide the top block assembly 220.

[0065] Understandably, the guide groove 122 connects the placement groove 121 and the locking groove 111, forming the path for the top block assembly 220 to move. A guide portion is provided on the top block assembly 220, which cooperates with the guide groove 122 to ensure that the top block assembly 220 can slide smoothly along the guide groove 122 during movement, ensuring that the top block assembly 220 does not deviate from the track during extension and retraction. Simultaneously, the design of the guide portion ensures that the top block assembly 220 can move smoothly along the guide groove 122 under the preload provided by the elastic element 210, avoiding the problem of unstable component clamping due to poor movement.

[0066] In this embodiment, the cooperation between the guide groove 122 and the guide portion ensures smoother movement of the top block assembly 220, guaranteeing a more secure fixation of the component within the slot 111. Simultaneously, the design of the guide portion and guide groove 122 makes the movement trajectory of the top block assembly 220 more precise, reducing problems such as uneven clamping force caused by movement trajectory deviations.

[0067] Reference Figure 4 In some embodiments, the end face of the abutment end is conformally configured to the outer contour of the ultra-wide-angle hemispherical lens element 30.

[0068] Understandably, designing the end face of the abutment to conform to the outer contour of the ultra-wide-angle hemispherical lens element 30 increases the contact area between the top block assembly 220 and the element, ensuring stable fixation of the element within the slot 111. Furthermore, the conformal design allows the pressure from the top block assembly 220 to be evenly distributed across the element surface when pressing the element, reducing excessive local pressure and protecting the element surface from damage. Simultaneously, since the end face of the abutment can be designed to match ultra-wide-angle hemispherical lens elements 30 with different curvatures, it can accommodate different types of elements, improving the versatility of the clamp.

[0069] Reference Figure 4 In some embodiments, the top block assembly 220 includes a connecting block 221, a guide block 222, and a pressing block 223. The connecting block 221 and the pressing block 223 are respectively connected to the two ends of the guide block 222. The guide block 222 is provided corresponding to the guide groove 122. The connecting block 221 is provided in the placement groove 121 and connected to the elastic member 210. The pressing block 223 is provided in the slot 111 and abuts against the ultra-wide-angle hemispherical lens element 30.

[0070] Understandably, the connecting block 221 is located within the placement groove 121 and connected to one end of the elastic member 210, ensuring that the elastic member 210 can provide preload to the top block assembly 220. The connecting block 221 transmits the preload provided by the elastic member 210 to the guide block 222, thereby driving the entire top block assembly 220 to perform telescopic movement.

[0071] The guide block 222 is set to correspond to the guide groove 122, so that the top block assembly 220 can slide smoothly within the guide groove 122. The guide block 222 serves to connect the connecting block 221 and the pressure block 223, providing structural support for the entire top block assembly 220.

[0072] The pressure block 223 is disposed within the slot 111 and abuts against the ultra-wide-angle hemispherical lens element 30, so that the top block assembly 220 can press the element firmly within the slot 111. The end face of the pressure block 223 is conformally shaped to the outer contour of the ultra-wide-angle hemispherical lens element 30 to increase the contact area, ensure uniform pressure distribution, and protect the surface of the element from damage.

[0073] Reference Figure 4 In some embodiments, the slot 111 includes a placement portion 111a and a pressing portion 111b. The pressing portion 111b is disposed on the side of the placement portion 111a near the placement slot 121. The placement portion 111a is suitable for placing the ultra-wide-angle hemispherical lens element 30, and the pressing portion 111b is suitable for accommodating the pressure block 223. The depth of the pressing portion 111b is greater than the height of the placement portion 111a.

[0074] Understandably, the placement part 111a is the portion of the slot 111 used to directly place the ultra-wide-angle hemispherical lens element 30. The shape of the placement part 111a matches the bottom or support surface of the element to ensure that the element can be stably placed in the slot 111; at the same time, the placement part 111a can also restrict the circumferential movement of the element in the slot 111, so that the element can maintain the correct position and orientation when clamped by the pressure block 223.

[0075] The pressing part 111b is located on the side of the placement part 111a near the placement groove 121, and is used to accommodate the pressure block 223 in the top block assembly 220. When the pressure block 223 moves toward the component under the drive of the elastic member 210, the pressure block 223 can contact the surface of the component under the guidance of the pressing part 111b to achieve a clamping effect.

[0076] The depth of the pressing part 111b is greater than the height of the placement part 111a, which ensures that the pressure block 223 can fully contact and press the surface of the component without affecting the clamping effect due to insufficient space.

[0077] Due to the presence of the pressing part 111b, the clamping block 223 can make deeper contact with the component surface during clamping, thereby enhancing the clamping force. This helps ensure that the component remains stable during the coating process and prevents displacement or tilting due to vibration or external forces.

[0078] Reference Figure 2In some embodiments, the ultra-wide-angle hemispherical lens fixture 10 also includes a cover plate 300, which covers the top of the placement groove 121. The cover plate 300 has a guide slope 310 on the side near the slot 111, which is suitable for avoiding the slot 111.

[0079] Understandably, the main function of the cover plate 300 is to press the elastic pressing mechanism 200 to prevent it from falling out of the placement groove 121 or becoming loose, thereby improving the reliability of the fixture. The cover plate 300 has a guide slope 310 on the side near the slot 111. The design of the guide slope 310 ensures that the cover plate 300 will not interfere with the slot 111 when closed, ensuring that the cover plate 300 can smoothly cover the placement groove 121 without affecting the components inside the slot 111, and preventing splatter during the plating process.

[0080] In some embodiments, since the cover plate 300 is relatively thin and easily deformed in high temperature environments, multiple holes can be left in the cover plate 300 to fix it to the card holder 100.

[0081] Reference Figure 2 and Figure 3 In some embodiments, the card holder 100 includes a first card strip 110 and a second card strip 120, which are spliced ​​together. The first card strip 110 has a plurality of card slots 111 along its own length direction, and the second card strip 120 has a plurality of placement slots 121 corresponding to the card slots 111 along its own length direction.

[0082] Understandably, the first retaining strip 110 has multiple slots 111 along its length for placing the ultra-wide-angle hemispherical lens element 30. The design of multiple slots 111 allows for the simultaneous fixing of multiple elements, improving production efficiency. The second retaining strip 120 has multiple placement slots 121 along its length corresponding to the slots 111 for installing the elastic element 210 and the top block assembly 220. The design of the placement slots 121 ensures sufficient installation space for the elastic element 210 and the top block assembly 220, and allows the top block assembly 220 to move smoothly along the guide groove 122. Correspondingly, each slot 111 is individually equipped with an elastic clamping mechanism 200 to prevent parts from jamming or falling off due to uneven component dimensions.

[0083] The second locking strip 120 is spliced ​​with the first locking strip 110 to form a complete card holder 100 structure, providing necessary support and stability. The first locking strip 110 and the second locking strip 120 can be spliced ​​together with bolts. The splicing design of the first locking strip 110 and the second locking strip 120 allows the card holder 100 to be produced in a modular manner, facilitating maintenance and component replacement.

[0084] Reference Figure 1and Figure 2 In some embodiments, one end of the card holder 100 along its own length direction is engaged with the chuck 20 by a U-shaped slot 112, and the other end is provided with an overlap portion 113 to overlap with the chuck 20.

[0085] Understandably, the U-shaped bayonet 112, designed at one end of the card holder 100, allows for quick engagement with the chuck 20, simplifying the installation process and enabling the operator to quickly secure the card holder 100 to the chuck 20. Simultaneously, the engagement of the U-shaped bayonet 112 with the chuck 20 provides strong stability, ensuring that the position of the card holder 100 does not shift during the coating process. The other end of the card holder 100 is provided with an overlapping portion 113, which overlaps with the chuck 20, further enhancing the connection stability between the card holder 100 and the chuck 20. Through the combined design of the U-shaped bayonet 112 and the overlapping portion 113, this embodiment allows the card holder 100 to obtain good support at both ends in the length direction, ensuring the balance and stability of the card holder 100 during use.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A fixture for an ultra-wide-angle hemispherical lens, characterized in that, include: A card holder, which is connected to a chuck, has a card slot on it, which is suitable for placing ultra-wide-angle hemispherical lens elements of different sizes; An elastic clamping mechanism is provided on one side of the slot, and the elastic clamping mechanism is suitable for clamping and fixing an ultra-wide-angle hemispherical lens element placed in the slot. The elastic clamping mechanism includes an elastic element and a top block assembly. The top block assembly has a connecting end and an abutting end disposed opposite to each other. The abutting end is located in the slot and is adapted to abut against the ultra-wide-angle hemispherical lens element in the slot. The elastic element is connected to the connecting end and is adapted to provide a pre-tightening force to the top block assembly toward the ultra-wide-angle hemispherical lens element.

2. The ultra-wide-angle hemispherical lens fixture according to claim 1, characterized in that, The card holder has a placement groove on the outer periphery of the card slot, the placement groove is in communication with the card slot, one end of the elastic member is connected to the side wall of the placement groove away from the card slot, and the top block assembly is movably disposed between the placement groove and the card slot.

3. The ultra-wide-angle hemispherical lens fixture according to claim 2, characterized in that, The placement slot and the card slot are connected by a guide slot. The top block assembly is provided with a guide part between the connecting end and the abutting end. The guide part cooperates with the guide slot to guide the top block assembly.

4. The ultra-wide-angle hemispherical lens fixture according to claim 3, characterized in that, The end face of the abutting end is conformally set to the outer contour of the ultra-wide-angle hemispherical lens element.

5. The ultra-wide-angle hemispherical lens fixture according to claim 4, characterized in that, The top block assembly includes a connecting block, a guide block, and a pressing block. The connecting block and the pressing block are respectively connected to the two ends of the guide block. The guide block is set corresponding to the guide groove. The connecting block is set in the placement groove and connected to the elastic element. The pressing block is set in the slot and abuts against the ultra-wide-angle hemispherical lens element.

6. The ultra-wide-angle hemispherical lens fixture according to claim 5, characterized in that, The slot includes a placement part and a pressing part. The pressing part is located on the side of the placement part near the placement slot. The placement part is suitable for placing an ultra-wide-angle hemispherical lens element, and the pressing part is suitable for accommodating the pressure block. The depth of the pressing part is greater than the height of the placement part.

7. The ultra-wide-angle hemispherical lens fixture according to any one of claims 2-6, characterized in that, The ultra-wide-angle hemispherical lens fixture also includes a cover plate, which covers the top of the placement slot. The cover plate has a guide slope on the side near the slot, which is suitable for avoiding the slot.

8. The ultra-wide-angle hemispherical lens fixture according to any one of claims 2-6, characterized in that, The card holder includes a first card strip and a second card strip, which are spliced ​​together. The first card strip has a plurality of card slots along its own length direction, and the second card strip has a plurality of placement slots corresponding to the card slots along its own length direction.

9. The ultra-wide-angle hemispherical lens fixture according to any one of claims 1-6, characterized in that, One end of the card holder along its own length direction is connected to the chuck by a U-shaped slot, and the other end is provided with an overlapping part to overlap with the chuck.

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