Intelligent glasses and assembling method thereof
By using detachable elastic seals in smart glasses, the problem of poor sealing between myopia lenses and waveguide lenses is solved, achieving seamless sealing on complex curved surfaces, improving airtightness and ease of assembly, and supporting long-term customized use of lenses.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-02
- Publication Date
- 2026-04-03
AI Technical Summary
In existing smart glasses, the seal between the myopia lens and the waveguide lens is not tight, making it easy for dust or moisture to enter, affecting image quality and user experience. In addition, traditional O-ring seals are difficult to fix on complex curved surfaces and are prone to displacement during assembly.
It adopts a detachable elastic seal with a material that can switch between liquid and solid states. It is applied to the lens mounting part through a dispensing process and cured to form a seamless sealing ring. When the elastic seal is solid, it is bonded to the lens mounting part. The second lens can be detachably installed to ensure a sealing effect.
It achieves perfect fit on complex curved surfaces, improves the airtightness between lenses, isolates external moisture and dust, shortens the customization cycle, ensures convenient assembly and airtightness of the sealed cavity, and supports long-term customized use of lenses.
Smart Images
Figure CN121784980A_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of smart glasses technology, and more particularly to a smart glasses and its assembly method. Background Technology
[0002] In the design of smart glasses such as AR (Augmented Reality) or VR (Virtual Reality), in order to meet the needs of different users, it is usually necessary to install a myopia lens on the outside of the optical waveguide lens. There is usually a gap between the myopia lens and the optical waveguide lens. If the seal is not tight, external dust can easily enter the interlayer, or moisture can be generated under temperature changes. The moisture in the interlayer will cause the lens to fog up. All of these will seriously affect the imaging quality of the optical waveguide and the user's visual experience.
[0003] Existing installation methods typically use O-rings for sealing, but O-rings require custom molds and are difficult to fix on complex curved frames. They are also prone to displacement during assembly. Due to processing errors, injection molding defects, or rough textures on the frame's mating surface, the sealing effect of custom O-rings is limited. Summary of the Invention
[0004] This disclosure provides a smart glasses and an assembly method thereof, which can improve the sealing effect between the first lens and the second lens of the smart glasses.
[0005] The first aspect of this disclosure provides a smart glasses, including:
[0006] Eyeglass frame, including lens mounting section;
[0007] The first lens is located on the lens frame and is used to display the image.
[0008] The second lens is detachably mounted to the lens mounting part. The second lens and the first lens are located on opposite sides of the frame along the lens thickness direction, with the second lens located on the side of the first lens furthest from the eye along the lens thickness direction.
[0009] An elastic seal extends circumferentially along the lens mounting portion, abuts against the lens mounting portion and the second lens, and applies elastic force to the lens mounting portion and the second lens respectively to form a sealed cavity between the frame, the first lens and the second lens.
[0010] The material of the elastic seal can be either liquid or solid. During the transition from liquid to solid, the elastic seal is bonded to the lens mounting part. When the material of the elastic seal is solid, the second lens is mounted on the lens mounting part.
[0011] In some embodiments, the lens mounting portion includes:
[0012] The first and second borders are arranged opposite to and spaced apart along the thickness direction of the lens; and
[0013] A third frame is connected between the first frame and the second frame. The third frame is located radially outside the second lens. The first frame, the second frame, and the third frame form a receiving groove for accommodating an elastic seal. The elastic seal is bonded to at least one of the first frame, the second frame, and the third frame.
[0014] In some embodiments, the second lens includes a first portion, the first portion including a main body portion and a plurality of flange portions, the plurality of flange portions being disposed on the main body portion and spaced apart circumferentially, the main body portion abutting against an elastic seal, and the flange portions abutting against the elastic seal and the second frame portion along the thickness direction of the lens. In some embodiments,
[0015] The second lens also includes a second portion, which, along the thickness direction of the lens, is located on the side of the first portion furthest from the eye, and the size of the second portion is greater than or equal to the size of the inner edge of the second frame; and / or
[0016] The second lens includes an annular groove extending circumferentially, the annular groove being located on the side of the second lens near the first frame. The lens mounting part also includes an annular boss connected to the first frame, the annular boss being radially opposite to and spaced apart from the third frame, the annular boss and the annular groove forming a convex-concave mating structure.
[0017] In some embodiments, the material of the resilient seal includes hot melt adhesive, which is liquid at a first temperature and solid at a second temperature, wherein the first temperature is greater than the second temperature.
[0018] In some embodiments,
[0019] The materials for resilient seals also include pressure-sensitive adhesives; and / or
[0020] The material of the resilient seal also includes at least one of a softener and a toughening agent.
[0021] In some embodiments, the second lens includes at least one of a myopia lens, a hyperopia lens, a presbyopia lens, a plano lens, and a filter lens.
[0022] A second aspect of this disclosure provides a method for assembling smart glasses, used to assemble the smart glasses of the above embodiments. The smart glasses assembly method includes:
[0023] The first lens is placed on the frame;
[0024] When the material of the elastic seal is in a liquid state, the elastic seal is applied circumferentially to the lens mounting part;
[0025] This changes the material of the elastic seal from a liquid to a solid state;
[0026] Pressure is applied to press the second lens into the lens mounting part and to cause the second lens to squeeze the elastic seal.
[0027] In some embodiments, the material of the resilient seal includes hot melt adhesive, which is liquid at a first temperature and solid at a second temperature. The first temperature being greater than the second temperature, causing the material of the resilient seal to change from liquid to solid, includes:
[0028] This reduces the temperature of the elastic seal from the first temperature to the second temperature.
[0029] In some embodiments, the material of the resilient seal further includes at least one of a softener and a toughening agent, and the resilient seal is applied circumferentially to the lens mounting portion, including:
[0030] The adhesive is dispensed from the elastic sealant at the first temperature using a dispensing machine and applied circumferentially to the lens mounting section.
[0031] The smart glasses of this disclosure feature an elastic sealing element whose material can be selectively in a liquid or solid state. Compared to traditional O-rings, this creates a completely continuous, seamless sealing ring at the lens mounting portion of the frame. The elastic sealing element perfectly conforms to the curved surface of irregularly shaped frames, compensating for adverse effects caused by processing errors, injection molding defects, or rough textures on the bonding surface. This improves the airtightness between the frame and the second lens, thereby enhancing the sealing effect between the first and second lenses and effectively isolating external moisture and dust. The elastic sealing element does not require manual alignment and will not shift during the installation of the second lens, balancing the ease of assembly of the smart glasses with the airtightness of the sealed cavity. The second lens is detachably mounted on the lens mounting portion of the frame. This, combined with the high sealing performance of the elastic sealing element, shortens the customization cycle of the smart glasses, enabling long-term customized use. Attached Figure Description
[0032] The accompanying drawings, which are included to provide a further understanding of this disclosure and form part of this application, illustrate exemplary embodiments of this disclosure and are used to explain this disclosure, but do not constitute an undue limitation of this disclosure. In the drawings:
[0033] Figure 1 This is an exploded structural diagram of some embodiments of the smart glasses disclosed herein.
[0034] Figure 2 This is a schematic diagram of the structure of some embodiments of the lens mounting part of the smart glasses disclosed herein.
[0035] Figure 3Schematic diagrams of some embodiments of the smart glasses of this disclosure, in which an elastic seal is provided for the lens mounting portion.
[0036] Figure 4 This is a schematic diagram of the structure of some embodiments of the smart glasses disclosed herein, in which the second lens is mounted on the lens mounting section.
[0037] Figure 5 This is a schematic diagram of the structure of some other embodiments of the smart glasses disclosed herein, in which the second lens is mounted on the lens mounting portion.
[0038] Figure 6 This is a schematic diagram of the structure of some embodiments of the second lens of the smart glasses disclosed herein.
[0039] Figure 7 This is a schematic diagram of a further embodiment of the smart glasses of this disclosure, in which the second lens is mounted on the lens mounting portion.
[0040] Figure 8 This is a first-view structural schematic diagram of some embodiments of the frame of the smart glasses disclosed herein.
[0041] Figure 9 This is a first-view structural schematic diagram of some embodiments in which an elastic seal is provided for the lens mounting portion of the frame of the smart glasses disclosed herein.
[0042] Figure 10 This is a second-view structural schematic diagram of some embodiments of the smart glasses frame with a resilient seal provided for the lens mounting portion.
[0043] Figure 11 This is a first-view structural diagram of some embodiments of the smart glasses disclosed herein.
[0044] Figure 12 This is a structural schematic diagram of the second viewpoint of some embodiments of the smart glasses disclosed herein.
[0045] Explanation of reference numerals in the attached figures:
[0046] 1. Frame; 2. First lens; 3. Second lens; 4. Elastic seal; 10. Lens mounting part; 101. First frame; 102. Second frame; 103. Third frame; 104. Annular boss; 31. First part; 310. Main body; 311. Flange; 32. Second part; 33. Annular groove. Detailed Implementation
[0048] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are in no way intended to limit the present disclosure or its application or use. The present disclosure may be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that the present disclosure will be thorough and complete, and will fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless specifically stated otherwise, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values set forth in these embodiments should be interpreted as merely exemplary and not as limiting.
[0049] The terms "first," "second," and similar words used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "contains" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well. Terms such as "above," "below," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, this relative positional relationship may also change accordingly.
[0050] In this disclosure, when a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other devices without an intermediary device, or it may be not directly connected to the other devices but have an intermediary device.
[0051] All terms used in this disclosure (including technical or scientific terms) have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in a general dictionary, such as a dictionary, should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and not as having an idealized or highly formalized meaning, unless expressly defined herein.
[0052] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.
[0053] Based on the embodiments disclosed above, in the absence of explicit denial or conflict, the technical features of one embodiment may be advantageously combined with one or more other embodiments.
[0054] During their research, the inventors discovered that in smart glasses products, due to the requirements of optical coordination, waveguide lenses are fixed to the frame without adjustment. Waveguide lenses are usually glued to the frame with rigid adhesive. However, prescription lenses and other lenses need to be customized according to each user's different needs and installed according to their requirements. If prescription lenses are also directly glued to the frame with rigid adhesive, it will be difficult to disassemble and the expensive waveguide lenses will be easily damaged if the prescription needs to be replaced due to changes in the prescription.
[0055] The myopia lenses are designed to be detachably installed in the frame. Gaps are more likely to occur between the myopia lenses and the waveguide lenses, and the problem that urgently needs to be solved is the inadequate seal between the myopia lenses and the frame, and the inconvenience of using O-rings for sealing during assembly. To solve at least one of the aforementioned problems, this disclosure proposes a smart glasses, such as... Figures 1 to 12 As shown, it includes:
[0056] The frame 1 includes a lens mounting part 10;
[0057] The first lens 2 is disposed on the frame 1 and is used to display the image.
[0058] The second lens 3 is detachably mounted to the lens mounting part 10. The second lens 3 and the first lens 2 are located on opposite sides of the frame 1 along the lens thickness direction, and the second lens 3 is located on the side of the first lens 2 furthest from the eye along the lens thickness direction; and
[0059] The elastic seal 4 extends circumferentially along the lens mounting portion 10. The elastic seal 4 abuts against the lens mounting portion 10 and the second lens 3, and the elastic seal 4 applies elastic force to the lens mounting portion 10 and the second lens 3 respectively, so as to form a sealed cavity between the frame 1, the first lens 2 and the second lens 3.
[0060] The material of the elastic seal 4 can be either liquid or solid. During the transition of the elastic seal 4 from liquid to solid, the elastic seal 4 is bonded to the lens mounting part 10. When the material of the elastic seal 4 is solid, the second lens 3 is mounted on the lens mounting part 10.
[0061] The first lens 2 is fixed to the side of the frame 1 away from the lens mounting part 10 (the side closer to the human eye), and the first lens 2 is sealed to the frame 1. For example, the first lens 2 can be glued to the frame 1 with rigid adhesive. The first lens 2 may include an optical waveguide lens for displaying images, and the frame 1 is provided with an optical waveguide assembly that cooperates with the optical waveguide lens.
[0062] The second lens 3 may include at least one of the following: myopia lenses, hyperopia lenses, presbyopia lenses, plano lenses, and filter lenses. Filter lenses may include sunglasses, etc. The power of the vision correction lens can be customized according to the user's needs. The lens thickness direction may also be referred to as the axis.
[0063] The second lens 3 is detachably mounted to the lens mounting part 10, meaning that the second lens 3 cannot be mounted in a non-removable manner, such as by gluing it to the frame 1 with rigid adhesive. For example, the second lens 3 can be mounted to the lens mounting part 10 by mechanical fastening. The second lens 3 can be mounted by interference fit with the lens mounting part 10, or by abutting against the lens mounting part 10 with a flange 311, or both methods can be used simultaneously, or other detachable mounting methods can be used. When the user needs to replace the lens due to a change in the corrective lens prescription, the second lens 3 can be removed using special tools without damaging the frame 1 or the expensive first lens 2 (waveguide lens), thus enabling long-term customized use of the smart glasses.
[0064] The elastic seal 4 applies elastic force to the lens mounting part 10 and the second lens 3 respectively. That is, after the second lens 3 is pressed into the frame 1 axially, it needs to compress the elastic seal 4. The second lens 3 can compress the elastic seal 4 along the lens thickness direction, or along the lens radial direction, or both. By compressing the elastic seal 4, the second lens 3 causes the elastic seal 4 to undergo elastic deformation. After deformation, the elastic seal 4 can wrap or fill the edge gaps due to its rebound force, and contact the lens mounting part 10 and the second lens 3 over a larger area, improving the airtightness between the frame 1 and the second lens 3, thereby improving the sealing effect between the first lens 2 and the second lens 3, and effectively isolating external moisture and dust.
[0065] The material of the elastic seal 4 can be either liquid or solid, such as hot melt adhesive, UV-curing adhesive, or moisture-curing adhesive. When the elastic seal 4 is liquid, the liquid soft adhesive is applied to the lens mounting portion 10, for example, using a dispensing process. After the liquid soft adhesive cools or solidifies, a ring of solid elastic seal 4 is formed on the frame, bonded to the lens mounting portion 10. Obviously, the solid elastic seal 4 needs to protrude slightly beyond the groove plane of the lens mounting portion 10 so that it can be compressed by the second lens 3. The compression ratio of the elastic seal 4 can be 20% to 50%. The liquid soft adhesive can be applied to the lens mounting portion 10 using processes such as dispensing.
[0066] When the material of the elastic seal 4 is in a liquid state, the liquid soft glue has fluidity, which can fill the tiny injection defects or rough textures on the surface of the frame. After curing, it forms a perfect bonding surface, thereby significantly improving the protection level of the sealed cavity (up to IPX5 or higher) and effectively preventing dust accumulation or fogging on the surface of the waveguide lens. Smart glasses frames are usually complex three-dimensional curved surface designs. Traditional finished sealing rings are difficult to fix stably on three-dimensional curved surfaces, are prone to warping, and are prone to displacement, twisting, or falling off during lens pressing. The elastic seal 4 of this application adheres to the lens mounting part 10 during the liquid-to-solid transition process, and will not shift its position when the second lens 3 is pressed in, which can improve the assembly yield and efficiency. Traditional rubber O-rings usually have parting lines or seams. After the elastic seal 4 of this application is cured after phase transition, it can form a completely continuous sealing ring without parting lines or seams, improving the sealing effect between the frame 1 and the second lens 3.
[0067] The elastic seal 4 also eliminates the cost of custom-made rubber rings and the need for inventory management of rubber rings. The solidified elastic seal 4 has high elasticity and acts as a buffer between the second lens 3 and the lens mounting part 10. It can not only achieve a tight fit and seal, but also absorb external vibrations and prevent the second lens 3 from loosening or producing abnormal noise. The elastic deformation capability of the elastic seal 4 can effectively compensate for the injection molding tolerances of the frame 1 and the second lens 3. Even if there are slight deviations in the dimensions of the frame 1 and the second lens 3, the compression and rebound of the elastic seal 4 can still ensure a tight fit. This can reduce the dependence on high-precision molds for the frame 1 and the second lens 3.
[0068] Because the elastic seal 4 is bonded to the lens mounting part 10 of the frame 1 during the phase transition, and the second lens 3 is detachably mounted to the lens mounting part 10 of the frame 1, the frame 1, the first lens 2 and the elastic seal 4 can be manufactured as a whole in the factory. The second lens 3 can be customized by the distributor according to the user's needs, so that the factory does not need to customize production according to the user's needs, which can shorten the customization cycle of smart glasses and optimize the product supply chain of smart glasses.
[0069] In this embodiment, the elastic sealing element 4 of the smart glasses can be selectively made of liquid or solid material. Compared with traditional O-rings, it can form a completely continuous and seamless sealing ring in the lens mounting part 10 of the frame 1. The elastic sealing element 4 can perfectly fit the curved surface of the irregular frame, and can compensate for the adverse effects caused by processing errors, injection defects or rough textures of the bonding surface, improve the airtightness between the frame 1 and the second lens 3, and thus improve the sealing effect between the first lens 2 and the second lens 3, effectively isolating external moisture and dust. The elastic sealing element 4 does not require manual alignment and will not shift during the installation of the second lens 3, thus balancing the assembly convenience of the smart glasses with the airtightness of the sealed cavity. The second lens 3 is detachably installed in the lens mounting part 10 of the frame 1. This, combined with the high sealing performance of the elastic sealing element 4, can shorten the customization cycle of the smart glasses and realize the long-term customized use of the smart glasses.
[0070] In some embodiments, such as Figure 2 As shown, the lens mounting part 10 includes:
[0071] The first frame 101 and the second frame 102 are arranged opposite to and spaced apart along the thickness direction of the lens; and
[0072] The third frame 103 is connected between the first frame 101 and the second frame 102. The third frame 103 is located radially outside the second lens 3. The first frame 101, the second frame 102 and the third frame 103 form a receiving groove for accommodating the elastic seal 4. The elastic seal 4 is bonded to at least one of the first frame 101, the second frame 102 and the third frame 103.
[0073] The third frame 103 is located radially outside the first frame 101. The receiving groove can serve as a guide groove for accommodating the liquid elastic seal 4, for example, the first frame 101 is inclined, the radially inner side of the first frame 101 is higher than the radially outer side, or the radially inner side of the first frame 101 is connected to an annular boss 104. Figure 4 As shown, in addition to accommodating the elastic seal 4, the receiving groove can also accommodate the flange portion 311 of the second lens 3 after the second lens 3 is installed into the lens mounting portion 10.
[0074] In this embodiment, the lens mounting part 10 has a groove-shaped structure in which the first frame 101, the second frame 102, and the third frame 103 cooperate. This structure can both cooperate with the second lens 3 and support and accommodate the liquid or solid elastic sealing member 4. At the same time, when the second lens 3 is installed on the frame 1, it can also squeeze the elastic sealing member 4 in the radial or thickness direction, so that the elastic sealing member 4 squeezes at least one of the first frame 101, the second frame 102, and the third frame 103, thereby improving the sealing effect.
[0075] In some embodiments, along the thickness direction of the lens, the first frame 101 is located on the side of the second frame 102 closer to the eyeglasses.
[0076] In some embodiments, such as Figures 4 to 6 As shown, the second lens 3 includes a first part 31, which includes a main body 310 and a plurality of flanges 311. The plurality of flanges 311 are disposed on the main body 310 and spaced apart in the circumferential direction. The main body 310 abuts against the elastic seal 4, and the flanges 311 abut against the elastic seal 4 and the second frame 102 in the thickness direction of the lens.
[0077] Along the circumference of the second lens 3, the portion of the main body 310 with the flange 311 is in a state of compression with the elastic seal 4 as follows: Figure 4 As shown, the flange portion 311 abuts against the elastic seal 4 and the second frame 102 along the thickness direction of the lens. The flange portion 311 mainly presses the elastic seal 4 towards the first frame 101 along the thickness direction of the lens. When there is a gap between the flange portion 311 and the third frame 103 in the radial direction and the elastic seal 4 is present in the gap, the flange portion 311 can also press the elastic seal 4 towards the third frame 103 in the radial direction.
[0078] Along the circumference of the second lens 3, the portion of the main body 310 without the flange 311 is in a state of compression with the elastic seal 4 as follows: Figure 5 As shown. The main body 310 abuts against the elastic seal 4, and can compress the elastic seal 4 in the direction of lens thickness toward the first frame 101, or in the direction of radial compression toward the third frame 103.
[0079] Optionally, the number and spacing angle of the flange portions 311 can be adaptively adjusted according to the thickness of the second lens 3, for example, the first part 31 includes three flange portions 311, which are equally spaced at angles. Depending on the thickness of the second lens 3 or the pressure applied during installation, the thickness of the elastic seal 4 after being compressed along the thickness direction of the lens can be 50% to 80% of that in the uncompressed state.
[0080] In this embodiment, the main body 310 abuts against the elastic seal 4, and the flange 311 abuts against the elastic seal 4 and the second frame 102 along the thickness direction of the lens. The second lens 3 can fully compress the elastic seal 4, thereby improving the sealing effect.
[0081] In some embodiments, such as Figures 4 to 6 As shown,
[0082] The second lens 3 also includes a second portion 32, which is located on the side of the first portion 31 away from the eye along the lens thickness direction. The size of the second portion 32 is greater than or equal to the size of the inner edge of the second frame 102; and / or
[0083] The second lens 3 includes an annular groove 33 extending circumferentially. The annular groove 33 is located on the side of the second lens 3 near the first frame 101. The lens mounting part 10 also includes an annular boss 104 connected to the first frame 101. The annular boss 104 is radially opposite to and spaced apart from the third frame 103. The annular boss 104 and the annular groove 33 form a convex-concave mating structure.
[0084] In this embodiment, the second part 32 is interference-fitted with the second frame 102, which can improve the stability of the second lens 3 installed in the lens mounting part 10; the annular boss 104 of the lens mounting part 10 cooperates with the first frame 101 and the third frame 103 to form a guide groove for the flow of liquid elastic seal 4, which can facilitate the setting of the elastic seal 4; the annular boss 104 and the annular groove 33 form a convex-concave fit structure, which can further improve the sealing effect of the sealed space.
[0085] In some embodiments, the material of the resilient seal 4 includes hot melt adhesive, which is liquid at a first temperature and solid at a second temperature, wherein the first temperature is higher than the second temperature. Optionally, the hot melt adhesive may be ethylene-vinyl acetate or the like.
[0086] The elastic seal 4 in this embodiment is made of hot melt adhesive that changes with temperature, which can reduce the processing conditions and processing costs of the phase transition of the elastic seal 4, thereby reducing the production cost of smart glasses.
[0087] In some embodiments,
[0088] The material of the resilient seal 4 also includes pressure-sensitive adhesive; and / or
[0089] The material of the elastic seal 4 also includes at least one of a softener and a toughening agent.
[0090] By adding pressure-sensitive adhesive material to hot melt adhesive, the solid elastic seal 4 can be made to have pressure-sensitive adhesion, that is, the elastic seal 4 will produce slight long-lasting adhesion to the contact surface after being squeezed. This adhesion can improve the installation stability of the second lens 3 and the sealing effect of the enclosed space, but will not affect the detachable installation of the second lens 3 like ordinary hard glue.
[0091] Optionally, the pressure-sensitive adhesive can be an acrylic ester, etc., and the hot melt pressure-sensitive mixed adhesive formed by adding the hot melt adhesive to the pressure-sensitive adhesive can be a styrene-isoprene-styrene block copolymer, etc.
[0092] By adding softeners and / or toughening agents to the hot melt adhesive, the fluidity of the elastic seal 4 in the liquid state can be increased, enabling the liquid soft adhesive to be dispensed with high precision (within 0.3mm) on the piezoelectric valve dispensing machine, thereby improving the efficiency of setting the elastic seal 4 on the frame 1 and thus improving the production efficiency of smart glasses.
[0093] Adding pressure-sensitive adhesive, softener, and toughening agent to hot melt adhesive can also reduce the melting temperature of hot melt adhesive. For example, the first temperature of traditional hot melt adhesive is around 200°C. After adding pressure-sensitive adhesive, softener, and toughening agent to hot melt adhesive, the first temperature can be reduced to around 150°C, which can further reduce the processing conditions and processing costs of the four-phase conversion of elastic seals.
[0094] Secondly, this disclosure also provides a method for assembling smart glasses, used to assemble the smart glasses of the above embodiments. The method for assembling smart glasses includes:
[0095] Place the first lens 2 on the frame 1;
[0096] With the material of the elastic seal 4 in a liquid state, the elastic seal 4 is coated circumferentially onto the lens mounting portion 10.
[0097] This causes the material of the elastic seal 4 to change from a liquid state to a solid state;
[0098] Pressure is applied to press the second lens 3 into the lens mounting part 10, and the second lens 3 squeezes the elastic seal 4.
[0099] Placing the first lens 2 on the frame includes sealing and bonding the first lens 2 to the side of the frame 1 closest to the eye. Pressing the second lens 3 into the lens mounting part 10, with the applied pressure along the lens thickness direction or axial direction.
[0100] After the smart glasses are assembled, a physically isolated sealed cavity is formed between the second lens 3 in front and the first lens 2 in the back. Relying on the sealing effect of the elastic sealing element 4, the sealed cavity achieves an IPX5 or higher dustproof and waterproof rating, which can prevent moisture or dust in the outside air from entering and prevent fogging or dust accumulation on the surface of the first lens 2 (optical waveguide lens).
[0101] The smart glasses assembly method of this embodiment uses an elastic sealing element 4 which is in a liquid state during coating and in a solid state during the installation of the second lens 3. Compared with traditional O-rings, this method can form a completely continuous and seamless sealing ring in the lens mounting part 10 of the frame 1. The elastic sealing element 4 can perfectly fit the curved surface of the irregular frame, which can compensate for the adverse effects caused by processing errors, injection defects or rough textures of the bonding surface, improve the airtightness between the frame 1 and the second lens 3, and thus improve the sealing effect between the first lens 2 and the second lens 3, effectively isolating external moisture and dust. The elastic sealing element 4 does not require manual alignment and can be bonded to the lens mounting part 10 during the process of the material of the elastic sealing element 4 changing from liquid to solid. It will not shift during the installation of the second lens 3, thus balancing the assembly convenience of smart glasses and the airtightness of the sealed cavity.
[0102] In some embodiments, the material of the elastic seal 4 includes hot melt adhesive, which is liquid at a first temperature and solid at a second temperature. The first temperature being greater than the second temperature causes the material of the elastic seal 4 to change from liquid to solid, which includes:
[0103] The temperature of the elastic seal 4 is reduced from the first temperature to the second temperature.
[0104] The elastic seal 4 in this embodiment is made of hot melt adhesive that changes with temperature, which can reduce the assembly cost of the phase transition of the elastic seal 4, thereby reducing the assembly cost of smart glasses.
[0105] In some embodiments, the material of the resilient seal 4 further includes at least one of a softener and a toughening agent, and the resilient seal 4 is coated circumferentially on the lens mounting portion 10, including:
[0106] The elastic sealant 4, which is at the first temperature, is dispensing adhesive through a dispensing machine and then circumferentially applied to the lens mounting part 10.
[0107] Smart glasses frames are typically designed with complex three-dimensional curved surfaces. Traditional prefabricated sealing rings are difficult to fix stably on three-dimensional curved surfaces and are prone to warping. The assembly method of this application forms an elastic sealing element 4 on the frame 1 through a dispensing process, which can adapt to any complex 3D path and ensure uniform sealing height even on non-planar frames.
[0108] This embodiment increases the fluidity of the elastic seal 4 in the liquid state by adding a softener and / or toughening agent to the hot melt adhesive, enabling the liquid soft adhesive to be dispensed with high precision on the dispensing machine, thereby improving the efficiency of setting the elastic seal 4 on the frame 1 and thus improving the production efficiency of smart glasses.
[0109] The present disclosure provides a detailed description of smart glasses and their assembly method. Specific embodiments have been used to illustrate the principles and implementation methods of the present disclosure. These embodiments are merely illustrative and are intended to aid in understanding the method and core concepts of the present disclosure. It should be noted that those skilled in the art can make various improvements and modifications to the present disclosure without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims of this disclosure.
Claims
1. A type of smart glasses, characterized in that, include: The frame (1) includes a lens mounting part (10). A first lens (2) is disposed on the frame (1) and is used to display an image. The second lens (3) is detachably mounted on the lens mounting part (10). The second lens (3) and the first lens (2) are located on opposite sides of the frame (1) along the lens thickness direction, and the second lens (3) is located on the side of the first lens (2) away from the eye along the lens thickness direction; and An elastic seal (4) extends circumferentially along the lens mounting portion (10), the elastic seal (4) abuts between the lens mounting portion (10) and the second lens (3), and the elastic seal (4) applies elastic force to the lens mounting portion (10) and the second lens (3) respectively to form a sealed cavity between the frame (1), the first lens (2) and the second lens (3); The material of the elastic seal (4) can be either liquid or solid. During the process of the elastic seal (4) changing from liquid to solid, the elastic seal (4) is bonded to the lens mounting part (10). When the material of the elastic seal (4) is solid, the second lens (3) is mounted on the lens mounting part (10).
2. The smart glasses according to claim 1, characterized in that, The lens mounting part (10) includes: The first frame (101) and the second frame (102) are arranged opposite to each other and spaced apart along the thickness direction of the lens; and The third frame (103) is connected between the first frame (101) and the second frame (102). The third frame (103) is located radially outside the second lens (3). The first frame (101), the second frame (102) and the third frame (103) form a receiving groove for accommodating the elastic seal (4). The elastic seal (4) is bonded to at least one of the first frame (101), the second frame (102) and the third frame (103).
3. The smart glasses according to claim 2, characterized in that, The second lens (3) includes a first part (31), which includes a main body (310) and a plurality of flanges (311). The plurality of flanges (311) are disposed on the main body (310) and spaced apart in the circumferential direction. The main body (310) abuts against the elastic seal (4), and the flanges (311) abut between the elastic seal (4) and the second frame (102) in the thickness direction of the lens.
4. The smart glasses according to claim 3, characterized in that, The second lens (3) further includes a second portion (32) along the thickness direction of the lens, the second portion (32) being located on the side of the first portion (31) away from the eye, and the size of the second portion (32) being greater than or equal to the size of the inner edge of the second frame (102); and / or The second lens (3) includes an annular groove (33) extending along the circumferential direction. The annular groove (33) is located on the side of the second lens (3) near the first frame (101). The lens mounting part (10) further includes an annular boss (104) connected to the first frame (101). The annular boss (104) is opposite to and spaced apart from the third frame (103) along the radial direction. The annular boss (104) and the annular groove (33) form a convex-concave mating structure.
5. The smart glasses according to claim 1, characterized in that, The material of the elastic seal (4) includes hot melt adhesive. At a first temperature, the hot melt adhesive is liquid, and at a second temperature, the hot melt adhesive is solid. The first temperature is greater than the second temperature.
6. The smart glasses according to claim 5, characterized in that, The material of the elastic seal (4) also includes pressure-sensitive adhesive; and / or The material of the elastic seal (4) also includes at least one of a softener and a toughening agent.
7. The smart glasses according to any one of claims 1 to 6, characterized in that, The second lens (3) includes at least one of myopia lens, hyperopia lens, presbyopia lens, plano lens and filter lens.
8. A method for assembling smart glasses, characterized in that, The method for assembling the smart glasses according to any one of claims 1 to 7 includes: The first lens (2) is placed on the frame (1); When the material of the elastic seal (4) is in a liquid state, the elastic seal (4) is coated on the lens mounting part (10) along the circumferential direction. This causes the material of the elastic seal (4) to change from a liquid state to a solid state; Apply pressure to press the second lens (3) into the lens mounting part (10) and cause the second lens (3) to squeeze the elastic seal (4).
9. The method for assembling smart glasses according to claim 8, characterized in that, The material of the elastic seal (4) includes hot melt adhesive. At a first temperature, the hot melt adhesive is in a liquid state, and at a second temperature, the hot melt adhesive is in a solid state. The first temperature is greater than the second temperature. The process of changing the material of the elastic seal (4) from a liquid state to a solid state includes: The temperature of the elastic seal (4) is reduced from the first temperature to the second temperature.
10. The method for assembling smart glasses according to claim 9, characterized in that, The material of the elastic seal (4) further includes at least one of a softener and a toughening agent, and the elastic seal (4) is coated on the lens mounting portion (10) along the circumferential direction, including: The elastic seal (4) at the first temperature is dispensing adhesive through a dispensing machine and applied to the lens mounting part (10) along the circumferential direction.