Waveguide anti-fingerprint coating processing clamp and device
By designing a waveguide anti-fingerprint coating processing fixture with adjustable snap-fit spacing, the compatibility problem of waveguide lenses of different sizes was solved, and efficient and uniform coating treatment effect was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEI JING ZHI GE GUANG DIAN KE JI YOU XIAN GONG SI
- Filing Date
- 2025-06-27
- Publication Date
- 2026-05-19
AI Technical Summary
Existing technology is incompatible with waveguide lenses of different sizes, making it impossible to efficiently perform anti-fingerprint coating dip-coating.
Design a waveguide anti-fingerprint coating processing fixture, including a main board and an auxiliary board, with adjustable spacing of the snap-fit slots to be compatible with waveguide lenses of different sizes, and equipped with arc grooves and liquid passage holes for holding the lenses in the immersion coating solution for processing.
It achieves compatibility with waveguide lenses of different sizes, avoids coating inhomogeneity, and improves processing efficiency and coating quality.
Smart Images

Figure CN224255184U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of waveguide fabrication technology, specifically relating to a waveguide anti-fingerprint coating processing fixture and device. Background Technology
[0002] Anti-fingerprint coatings (AF coatings, short for Anti-Fingerprint coatings) are widely used in various electronic devices and industrial products. They primarily work by reducing surface tension, thereby decreasing the adhesion of fingerprints, oil, and other contaminants, while simultaneously improving wear resistance and ease of cleaning. The following are the main application areas and technical characteristics of anti-fingerprint coatings:
[0003] 1. Smartphones and electronic devices
[0004] Phone back panel and screen: AF coating is commonly used on the back panel and touch screen of glass and ceramic phone materials. Through vapor deposition or spraying of nano-chemical materials, it significantly reduces the adhesion of fingerprints and oil stains, keeping the appearance clean.
[0005] 2. Automotive and industrial protection
[0006] In-vehicle displays: AF coating is used on in-vehicle touch screens to prevent fingerprints and oil stains from affecting the display effect, while also enhancing wear resistance.
[0007] Protective goggles and industrial panels: Applying AF coating to the surfaces of protective goggles, instrument panels, etc., improves stain resistance and abrasion resistance while maintaining high transparency and optical performance.
[0008] 3. Other consumer electronics products
[0009] Tablets and smartwatches: AF technology is used for screen protection to reduce fingerprint residue during daily use and improve the touch experience.
[0010] Camera lenses and optics: AF coating reduces the impact of dust and fingerprints on image quality.
[0011] As an optical device, waveguide lenses used in AR glasses are currently treated with common AF coating methods such as vapor deposition, spin coating, spraying, and dip coating, with dip coating being the main AF coating process.
[0012] The waveguide lens needs to be clamped in the dip coating process. However, since waveguide lenses are of different sizes, existing fixtures need to be designed to clamp waveguide lenses of different sizes for AF coating dip coating. Therefore, there is an urgent need for a waveguide anti-fingerprint coating processing fixture that can be compatible with waveguide lenses of different sizes to assist in the AF coating dip coating process of waveguide lenses. Utility Model Content
[0013] To meet the needs of the prior art, this utility model provides a waveguide anti-fingerprint coating processing fixture and device.
[0014] This utility model is achieved through the following technical solution:
[0015] This utility model provides a waveguide anti-fingerprint coating processing fixture, including a main board and an auxiliary board;
[0016] The motherboard is provided with a first snap-fit slot, which is used to snap-fit one end sidewall of the waveguide lens;
[0017] The auxiliary plate is provided with a second snap-fit groove, which is used to snap-fit the other side wall of the waveguide lens;
[0018] The auxiliary board can be detachably connected to different positions on the motherboard, so that the snap-fit distance between the first snap-fit slot and the second snap-fit slot can be adjusted.
[0019] Furthermore, the first card slot is provided on the inner side of the first side wall of the motherboard.
[0020] Furthermore, an adjustment hole is provided on the second side wall of the motherboard;
[0021] The auxiliary plate and the adjustment hole can be detachably connected at different positions;
[0022] The second sidewall of the motherboard is integrally connected to the first sidewall of the motherboard.
[0023] Furthermore, the adjusting hole includes a sliding hole and a fixing hole;
[0024] The auxiliary plate is provided with protrusions and connecting holes;
[0025] The protrusion can slide within the sliding hole, and the connecting hole and the fixing hole can be connected by a connector.
[0026] Furthermore, a liquid passage hole is provided at the bottom of the motherboard.
[0027] Furthermore, both the first and second snap-fit slots are arc-shaped.
[0028] Furthermore, a handheld portion is provided at the top of the second sidewall of the motherboard.
[0029] Furthermore, the bottom end of the motherboard near the adjustment hole has a set distance from the bottom end of the adjustment hole near the motherboard.
[0030] Furthermore, the motherboard has a plurality of first card slots spaced apart, and the auxiliary board has a plurality of second card slots spaced apart.
[0031] This utility model also provides a waveguide anti-fingerprint coating processing device, including a container and the above-mentioned waveguide anti-fingerprint coating processing fixture;
[0032] The container contains an impregnation solution that constitutes the anti-fingerprint coating;
[0033] The waveguide anti-fingerprint coating processing fixture holding the waveguide lens is immersed in the coating solution in the container, so that the surface of the waveguide lens is coated with an anti-fingerprint coating.
[0034] Compared with the prior art, the technical solution of this utility model has the following beneficial effects:
[0035] This utility model provides a waveguide anti-fingerprint coating processing fixture, including a main board and an auxiliary board. The main board is provided with a first snap-fit groove for snapping one end sidewall of a waveguide lens. The auxiliary board is provided with a second snap-fit groove for snapping the other end sidewall of the waveguide lens. The auxiliary board can be detachably connected to the main board at different positions, so that the snap-fit distance between the first and second snap-fit grooves can be adjusted. The snap-fit distance between the first and second snap-fit grooves can be adjusted to match the snap-fit size required for the waveguide lens to which the anti-fingerprint coating needs to be applied. Therefore, the waveguide anti-fingerprint coating processing fixture provided by this utility model can be compatible with waveguide lenses of different sizes to assist in the AF coating dip-coating treatment of waveguide lenses. Attached Figure Description
[0036] To more clearly illustrate the technical solutions in the embodiments of 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0037] Figure 1 A first-angle schematic diagram of the overall connection structure of the waveguide anti-fingerprint coating processing fixture provided by this utility model;
[0038] Figure 2 A second-angle schematic diagram of the overall connection structure of the waveguide anti-fingerprint coating processing fixture provided by this utility model;
[0039] Figure 3 This is a schematic diagram of the motherboard structure as an example;
[0040] Figure 4 A schematic diagram of the auxiliary board for example;
[0041] Figure 5 A schematic diagram of the structure of a waveguide anti-fingerprint coating processing fixture for snap-fit waveguide lenses, as an example;
[0042] Figure 6 A schematic diagram of the waveguide anti-fingerprint coating processing device provided by this utility model.
[0043] Among them, 1-waveguide anti-fingerprint coating processing fixture, 1-1-main board, 1-1-1-base plate, 1-1-2-first side plate, 1-1-3-second side plate, 1-1-4-first slot, 1-1-5-first sliding hole, 1-1-6-second sliding hole, 1-1-7-first fixing hole, 1-1-8-second fixing hole, 1-1-9-liquid passage hole, 1-1-10-handheld part, 1-2-auxiliary plate, 1-2-1-second slot, 1-2-2-first protrusion, 1-2-3-second protrusion, 1-2-4-first connecting hole, 1-2-5-second connecting hole, 2-waveguide lens, 3-container, 4-first connector, 5-second connector. Detailed Implementation
[0044] The technical solution of this utility model will be clearly and completely described below with reference to its embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and 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.
[0045] In this document, the terms "first," "second," and other similar words are not intended to imply any order, quantity, or importance, but are merely used to distinguish different elements. The terms "one," "a," and other similar words are not intended to indicate the existence of only one of the stated things, but rather that the description refers only to one of the stated things, which may have one or more. The terms "comprising," "including," and other similar words are intended to indicate a logical relationship, not a spatial relationship. For example, "A includes B" means that logically B belongs to A, not that spatially B is located inside A. Furthermore, the meanings of the terms "comprising," "including," and other similar words should be considered open-ended, not closed. For example, "A includes B" means that B belongs to A, but B does not necessarily constitute all of A; A may also include other elements such as C, D, and E.
[0046] In this document, the terms "embodiment," "this embodiment," "preferred embodiment," and "one embodiment" do not imply that the description applies only to one specific embodiment, but rather that such description may also be applicable to one or more other embodiments. Those skilled in the art will understand that any description made herein relating to one embodiment can be substituted, combined, or otherwise incorporated with the descriptions in one or more other embodiments. Such substitutions, combinations, or other incorporations resulting in new embodiments are readily conceived by those skilled in the art and fall within the protection scope of this utility model.
[0047] In this description, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0048] This utility model provides a waveguide anti-fingerprint coating processing fixture, such as Figure 1 As shown, the waveguide anti-fingerprint coating processing fixture 1 includes a main board 1-1 and an auxiliary board 1-2.
[0049] The motherboard is equipped with a first slot, which is used to attach one end of the waveguide lens.
[0050] For example, a first snap-fit groove is provided on the inner side of the first sidewall of the motherboard, and the first snap-fit groove is used to snap-fit one end sidewall of the waveguide lens.
[0051] Specific examples, such as Figure 3 As shown, the motherboard includes a base plate 1-1-1, a first side plate 1-1-2, and a second side plate.
[0052] The first side of the base plate 1-1-1 is connected to the bottom end of the first side plate 1-1-2, and the second side of the base plate 1-1-1 is connected to the bottom end of the second side plate 1-1-3. The first side and the second side of the base plate are adjacent and connected. The side of the first side plate 1-1-2 closest to the second side plate 1-1-3 is connected to the side of the second side plate 1-1-3 closest to the first side plate 1-1-2.
[0053] The inner side of the first side plate 1-1-2 is provided with a first snap-fit groove 1-1-4. Here, the inner side of the first side plate refers to the side of the first side plate that is close to the inside of the bottom plate.
[0054] Among them, the auxiliary plate 1-2 is provided with a second card slot 1-2-1 (e.g. Figure 4 As shown), the second locking slot is used to lock the other sidewall of the waveguide lens.
[0055] The auxiliary board can be detachably connected to different positions on the motherboard, allowing the snap-fit spacing between the first and second snap-fit slots to be adjusted.
[0056] For example, the second sidewall of the motherboard is provided with an adjustment hole, and the auxiliary board is detachably connected to different positions of the adjustment hole. Here, the second sidewall of the motherboard and the first sidewall of the motherboard are integrally connected.
[0057] For example, taking the motherboard as an example, which includes a base plate, a first side plate and a second side plate, the second side plate of the motherboard is provided with adjustment holes, such as sliding holes and fixing holes.
[0058] The auxiliary plate has raised sections and connecting holes.
[0059] The protrusion can slide within the sliding hole, and the connecting hole and the fixing hole can be connected by a connector. An example of a connector here could be an existing connector such as a screw.
[0060] Based on the required snap-fit size of the waveguide lens with the anti-fingerprint coating, the protrusion of the auxiliary plate is slid into the corresponding position in the sliding hole of the main board. Then, the connecting hole of the auxiliary plate and the fixing hole of the main board are detachably connected by a connector, so that the snap-fit distance between the first snap-fit slot and the second snap-fit slot is adjusted to the required snap-fit size of the waveguide lens with the anti-fingerprint coating.
[0061] like Figure 4 As shown, the top of the auxiliary plate 1-2 is provided with a first protrusion 1-2-2, the bottom of the auxiliary plate 1-2 is provided with a second protrusion 1-2-3, and the middle part of the auxiliary plate 1-2 is provided with a first connecting hole 1-2-4 and a second connecting hole 1-2-5. Figure 3 As shown, the second side plate 1-1-2 of the motherboard 1-1 is provided with a first sliding hole 1-1-5 and a second sliding hole 1-1-6 at intervals. The second side plate 1-1-2 of the motherboard 1-1 is provided with a first fixing hole 1-1-7 and a second fixing hole at intervals between the first sliding hole 1-1-5 and the second sliding hole 1-1-6.
[0062] The first protrusion 1-2-2 can slide within the first sliding hole 1-1-5, and the second protrusion 1-2-2 can slide within the second sliding hole 1-1-6. The first connecting hole 1-2-4 is connected to the first fixing hole 1-1-7 via the first connector 4, and the second connecting hole 1-2-5 and the second fixing hole 1-1-8 are connected via the second connector 5 (e.g., Figure 2 (As shown).
[0063] Based on the required snap-fit dimensions of the waveguide lens with the anti-fingerprint coating, the first protrusion of the auxiliary board is slid into the corresponding position in the first sliding hole of the motherboard, and the second protrusion of the auxiliary board is slid into the corresponding position in the second sliding hole of the motherboard. Then, the first connecting hole of the auxiliary board and the first fixing hole of the motherboard are detachably connected using the first connector, and the second connecting hole of the auxiliary board and the second fixing hole of the motherboard are detachably connected using the second connector.
[0064] The waveguide anti-fingerprint coating processing fixture provided by this utility model has an adjustable snap-fit distance between the first snap-fit slot on the main board and the second snap-fit slot on the auxiliary board. The snap-fit distance between the first snap-fit slot and the second snap-fit slot can be adjusted to match the snap-fit size required for the waveguide lens to which the anti-fingerprint coating needs to be applied. Therefore, the waveguide anti-fingerprint coating processing fixture provided by this utility model can be compatible with waveguide lenses of different sizes to assist in the AF coating dip-coating process of waveguide lenses.
[0065] Furthermore, in a preferred embodiment, the motherboard is provided with a plurality of first snap-fit slots spaced apart, and the auxiliary board is provided with a plurality of second snap-fit slots spaced apart. The first snap-fit slots and second snap-fit slots at corresponding positions can snap a waveguide lens. Through the cooperation of the plurality of first snap-fit slots and second snap-fit slots, the waveguide anti-fingerprint coating processing fixture provided by this utility model can perform AF coating dip-coating treatment on multiple waveguide lenses that need to be coated with anti-fingerprint coating at one time. Figure 5 The waveguide anti-fingerprint coating processing fixture provided by this utility model can assist in the AF coating dip-coating process of 5 waveguide lenses that need to be coated with anti-fingerprint coating at one time.
[0066] Since the waveguide lens dip-coating process requires immersing the waveguide anti-fingerprint coating processing fixture holding the waveguide lens into the dip-coating solution, a further preferred embodiment is that the first clamping groove is an arc-shaped groove, and the second clamping groove is an arc-shaped groove. This ensures that during the process of immersing the waveguide anti-fingerprint coating processing fixture holding the waveguide lens into the dip-coating solution to assist in the AF coating process, the waveguide lens inside the fixture maintains contact between its sidewall and the first and / or second clamping grooves despite being subjected to solution impact. This prevents damage to the structural areas of the waveguide lens caused by solution impact within the fixture.
[0067] In a further preferred embodiment, the waveguide anti-fingerprint coating processing fixture provided by this utility model has a liquid passage hole at the bottom end of the motherboard. Taking the aforementioned motherboard including a base plate, a first side plate, and a second side plate as an example, a liquid passage hole 1-1-9 (e.g., ...) is provided in the base plate of the motherboard. Figure 3 As shown, multiple liquid passage holes can be spaced out in the base plate of the motherboard. This allows excess liquid to be drained from the bottom of the fixture during the process of immersing the waveguide anti-fingerprint coating processing jig holding the waveguide lens into the immersion solution to assist in the AF coating process of the waveguide lens, and during the process of removing the waveguide anti-fingerprint coating processing jig holding the waveguide lens from the immersion solution after the AF coating process of the waveguide lens is completed. This prevents the problem of uneven AF coating on the waveguide lens in the area at the bottom of the fixture compared to other areas.
[0068] Preferably, after the waveguide lens completes the AF coating dipping process, in order to facilitate the removal of the waveguide anti-fingerprint coating processing jig holding the waveguide lens from the dipping solution, the waveguide anti-fingerprint coating processing jig provided by this utility model has a handle at the top of the second side wall of the main board. Taking the above-mentioned main board including a base plate, a first side plate and a second side plate as an example, the handle is provided at the top of the second side plate, such as... Figure 3 As shown, the handheld part 1-1-10 example uses a circular through hole. Of course, the circular through hole is just an example, and the handheld part can also use other shapes of through holes.
[0069] Furthermore, the waveguide anti-fingerprint coating processing fixture provided by this utility model has a set distance between the bottom end of the main board near the adjustment hole and the bottom end of the adjustment hole near the main board. Taking the main board including a base plate, a first side plate, and a second side plate as an example, the set distance between the bottom plate near the adjustment hole of the second side plate and the second side plate near the bottom plate ensures that after connecting the auxiliary plate to the adjustment hole of the second side plate, there is a gap between the bottom plate near the auxiliary plate and the auxiliary plate near the bottom plate. This allows the operator to pick up and place the waveguide lens in the fixture by contacting the upper and lower sidewalls of the waveguide lens with their fingers, and the structural surface area of the waveguide lens will not be contaminated during the pick-up and drop operation. The set distance here is not specifically limited, as long as it facilitates the operator's pick-up and drop operation of the waveguide lens in the fixture.
[0070] This utility model also provides a waveguide anti-fingerprint coating processing device, such as Figure 6 As shown, it includes container 3 and the aforementioned waveguide anti-fingerprint coating processing fixture 1.
[0071] Container 3 contains the anti-fingerprint coating solution.
[0072] The waveguide anti-fingerprint coating processing fixture 1, which holds the waveguide lens, is immersed in the coating solution in the container 3, so that the surface of the waveguide lens is coated with an anti-fingerprint coating.
[0073] The container can be a glass vessel, and the coating solution can be a commercially available anti-fingerprint coating solution.
[0074] The above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art can still make modifications or equivalent substitutions to the specific implementation of this utility model. Any modifications or equivalent substitutions that do not depart from the spirit and scope of this utility model are within the protection scope of the claims of this utility model pending approval.
Claims
1. A waveguide anti-fingerprint coating processing fixture, characterized in that, Including the mainboard and auxiliary boards; The motherboard is provided with a first snap-fit slot, which is used to snap-fit one end sidewall of the waveguide lens; The auxiliary plate is provided with a second snap-fit groove, which is used to snap-fit the other side wall of the waveguide lens; The auxiliary board can be detachably connected to different positions on the motherboard, so that the snap-fit distance between the first snap-fit slot and the second snap-fit slot can be adjusted.
2. The waveguide anti-fingerprint coating processing fixture according to claim 1, characterized in that, The first card slot is provided on the inner side of the first side wall of the motherboard.
3. The waveguide anti-fingerprint coating processing fixture according to claim 2, characterized in that, An adjustment hole is provided on the second side wall of the motherboard; The auxiliary plate and the adjustment hole can be detachably connected at different positions; The second sidewall of the motherboard is integrally connected to the first sidewall of the motherboard.
4. The waveguide anti-fingerprint coating processing fixture according to claim 3, characterized in that, The adjusting hole includes a sliding hole and a fixing hole; The auxiliary plate is provided with protrusions and connecting holes; The protrusion can slide within the sliding hole, and the connecting hole and the fixing hole can be connected by a connector.
5. The waveguide anti-fingerprint coating processing fixture according to claim 1, characterized in that, A liquid passage hole is provided at the bottom of the motherboard.
6. The waveguide anti-fingerprint coating processing fixture according to claim 1, characterized in that, The first snap-fit groove is an arc-shaped groove, and the second snap-fit groove is an arc-shaped groove.
7. The waveguide anti-fingerprint coating processing fixture according to claim 3, characterized in that, A handheld part is provided at the top of the second sidewall of the motherboard.
8. The waveguide anti-fingerprint coating processing fixture according to claim 3, characterized in that, The bottom end of the motherboard near the adjustment hole has a set distance from the bottom end of the adjustment hole near the motherboard.
9. The waveguide anti-fingerprint coating processing fixture according to claim 1, characterized in that, The motherboard has multiple first card slots spaced apart, and the auxiliary board has multiple second card slots spaced apart.
10. A waveguide anti-fingerprint coating processing device, characterized in that, Includes the container and the waveguide anti-fingerprint coating processing fixture according to any one of claims 1-9; The container contains an impregnation solution that constitutes the anti-fingerprint coating; The waveguide anti-fingerprint coating processing fixture holding the waveguide lens is immersed in the coating solution in the container, so that the surface of the waveguide lens is coated with an anti-fingerprint coating.