Full-color diffraction optical waveguide assembly, AR glasses lens assembly and AR glasses
Through the bonding design and grating structure of the first and second optical waveguide sheets, combined with adhesives and protective parts, the problems of large size and high cost of AR glasses are solved, and a full-color display and lightweight design are realized.
Patent Information
- Application Number
- CN202422643802.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-10-30
AI Technical Summary
Existing AR glasses mostly use array optical waveguides and BB solutions, resulting in huge volume, high production costs and difficulty in achieving full color display. The single-layer diffraction optical waveguide sheet technology is not mature enough and is expensive.
The first and second optical waveguide sheets are attached to each other, combined with the grating structure, optical principle analysis is used, and the cost is reduced and strength is increased through bonding and protective part design.
It achieves good full-color display effect, simple structure, facilitates mass production, light weight, meets lightweight design requirements, and improves user experience.
Smart Images
Figure CN223244846U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of intelligent electronic devices, and in particular to a full-color diffraction optical waveguide component, an AR glasses lens component and AR glasses. Background Art
[0002] AR (Augmented Reality) glasses can provide users with virtual text, images, videos and other content, and also allow users to view real-world scenes. The virtual content and real-world scenes can be integrated and interacted to meet users' applications in various fields such as entertainment, consumption, education, social interaction and industrial production. They are becoming increasingly popular among users and meet market demand.
[0003] Currently, mainstream AR glasses on the market mostly utilize array waveguides, BB solutions, and diffraction waveguides. BB solutions are bulky, making them unsuitable for lightweight wearable designs. Array waveguides are complex to manufacture, resulting in low yields and production efficiency, resulting in high product costs and making them unsuitable for mass production. Single-layer diffraction waveguides, which offer lightweight, efficient production, and relatively low cost, are typically limited to monochrome displays. This is because single-layer full-color waveguide technology is immature and expensive. Utility Model Content
[0004] The main purpose of the present utility model is to propose a full-color diffraction optical waveguide component, an AR glasses lens component and an AR glasses, aiming to provide a full-color diffraction optical waveguide component, an AR glasses lens component and an AR glasses that are lightweight, simple to process and have good display effects.
[0005] To achieve the above-mentioned purpose, the full-color diffraction optical waveguide assembly proposed in the present invention includes:
[0006] A first optical waveguide plate extends in a planar shape and has a first grating structure, and is provided with a first left viewing portion and a first right viewing portion corresponding to the human eye; and
[0007] The second optical waveguide plate extends in a planar shape and has a second grating structure, and is provided with a second left viewing portion and a second right viewing portion corresponding to the human eye;
[0008] The first optical waveguide sheet and the second optical waveguide sheet are bonded together, with at least the first left viewing portion being bonded together with the second left viewing portion, and the first right viewing portion being bonded together with the second right viewing portion.
[0009] In one embodiment, the first optical waveguide sheet and the second optical waveguide sheet are connected by adhesive bonding.
[0010] In one embodiment, the full-color diffraction optical waveguide assembly further includes a protective member for protecting the first optical waveguide plate and the second optical waveguide plate.
[0011] In one embodiment, the protective member includes a first tempered glass and a second tempered glass, which are respectively provided outside the first and second optical waveguide sheets along the thickness direction of the first optical waveguide sheet to enclose the first and second optical waveguide sheets.
[0012] In one embodiment, the first strengthened glass is bonded to the outside of the first optical waveguide sheet, and the second strengthened glass is bonded to the outside of the second optical waveguide sheet.
[0013] In one embodiment, the first optical waveguide plate and the second optical waveguide plate are provided with avoidance bending grooves corresponding to the human nose.
[0014] The present invention also provides an AR glasses lens assembly, comprising:
[0015] A full-color diffractive optical waveguide assembly as described in any of the preceding items;
[0016] The mounting bracket is used to install and fix the full-color diffraction optical waveguide component.
[0017] In one embodiment, the mounting bracket is recessed with a glue groove for dispensing glue in the glue groove to bond the full-color diffraction optical waveguide component.
[0018] In one embodiment, the mounting bracket is provided with reinforcing ribs at the avoidance bend groove.
[0019] The present invention also proposes an AR glasses, comprising the AR glasses lens assembly as described in any one of the above items.
[0020] The technical solution of the present invention adopts a method of bonding the first optical waveguide sheet and the second optical waveguide sheet to each other. At the same time, the first optical waveguide sheet has a first grating structure and the second optical waveguide sheet has a second grating structure. In this way, full use is made of optical principle analysis to ensure that the picture is not color-biased and the image color uniformity is better, thereby improving the display effect. At the same time, the structure is simple, which is conducive to mass production, and the weight is light, meeting the requirements of lightweight design. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.
[0022] Figure 1This is a structural diagram of an embodiment of a full-color diffraction optical waveguide component provided by the present utility model;
[0023] Figure 2 for Figure 1 Internal cross-sectional view in the middle and side direction;
[0024] Figure 3 This is a structural schematic diagram of an embodiment of an AR glasses lens assembly provided by the present invention;
[0025] Figure 4 for Figure 3 Internal cross-sectional view from the middle side.
[0026] Description of Figure Numbers:
[0027] 100. Full-color diffraction optical waveguide assembly; 1. First optical waveguide sheet; 11. Avoidance bend groove; 2. Second optical waveguide sheet; 3. Protective element; 31. First tempered glass; 32. Second tempered glass;
[0028] 200, AR glasses lens assembly; 201, mounting bracket; 2011, adhesive groove; 2012, reinforcing rib.
[0029] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.
[0031] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.
[0033] AR (Augmented Reality) glasses can provide users with virtual text, images, videos and other content, and also allow users to view real-world scenes. The virtual content and real-world scenes can be integrated and interacted to meet users' applications in various fields such as entertainment, consumption, education, social interaction and industrial production. They are becoming increasingly popular among users and meet market demand.
[0034] Currently, mainstream AR glasses on the market mostly utilize array waveguides, BB solutions, and diffraction waveguides. BB solutions are bulky, making them unsuitable for lightweight wearable designs. Array waveguides are complex to manufacture, resulting in low yields and production efficiency, resulting in high product costs and making them unsuitable for mass production. Single-layer diffraction waveguides, which offer lightweight, efficient production, and relatively low cost, are typically limited to monochrome displays. This is because single-layer full-color waveguide technology is immature and expensive.
[0035] To solve the above problems, the present invention proposes a full-color diffractive optical waveguide component, an AR glasses lens component and AR glasses, aiming to provide a full-color diffractive optical waveguide component, an AR glasses lens component and AR glasses that are lightweight, simple to process and have good display effects. Figures 1 to 2 This is a structural diagram of an embodiment of the full-color diffraction optical waveguide component provided by the present utility model.
[0036] Please refer to Figures 1 to 2In one embodiment of the present invention, a full-color diffractive optical waveguide assembly 100 includes a first optical waveguide sheet 1 and a second optical waveguide sheet 2. The first optical waveguide sheet 1 extends in a planar shape and has a first grating structure. It has a first left visual portion and a first right visual portion corresponding to the human eye. The second optical waveguide sheet 2 extends in a planar shape and has a second grating structure. It has a second left visual portion and a second right visual portion corresponding to the human eye. The first optical waveguide sheet 1 and the second optical waveguide sheet 2 are bonded together, with at least the first left visual portion bonding to the second left visual portion and the first right visual portion bonding to the second right visual portion.
[0037] The technical solution of the present invention adopts a method of bonding the first optical waveguide sheet 1 and the second optical waveguide sheet 2 to each other. At the same time, the first optical waveguide sheet 1 has a first grating structure and the second optical waveguide sheet 2 has a second grating structure. In this way, the optical principle analysis is fully utilized to prevent the image from being color-shifted, thereby improving the display effect. At the same time, the structure is simple, which is conducive to mass production, and the weight is light, meeting the requirements of lightweight design.
[0038] Furthermore, the first and second optical waveguide sheets 1 and 2 are connected by adhesive bonding. It is understood that the first and second optical waveguide sheets 1 and 2 are made of a light-conducting material. Some installation methods require additional components, further increasing costs. To minimize the manufacturing cost of the full-color diffractive optical waveguide assembly 100, the first and second optical waveguide sheets 1 and 2 are connected by adhesive bonding, further reducing costs. Specifically, high-strength UV adhesive is used to bond the first and second optical waveguide sheets 1 and 2, ensuring a strong connection between them.
[0039] In addition, please refer to Figure 1 and Figure 2 The full-color diffractive optical waveguide assembly 100 further includes a protective member 3 for protecting the first optical waveguide sheet 1 and the second optical waveguide sheet 2. It is understood that the first optical waveguide sheet 1 and the second optical waveguide sheet 2, as core components of the full-color diffractive optical waveguide assembly 100, are particularly susceptible to damage from external forces. Therefore, to protect the first optical waveguide sheet 1 and the second optical waveguide sheet 2, the full-color diffractive optical waveguide assembly 100 further includes the protective member 3. By providing the first optical waveguide sheet 1 and the second optical waveguide sheet 2 with the protective member 3, the strength of the full-color diffractive optical waveguide assembly 100 is enhanced, thereby preventing damage from external forces or collisions during use.
[0040] For further information, please refer to Figure 2The protective member 3 comprises a first tempered glass 31 and a second tempered glass 32, which are disposed on the outside of the first and second optical waveguide sheets 1, 2 along the thickness direction of the first optical waveguide sheet 1, respectively, to support the first and second optical waveguide sheets 1, 2. It is understood that to protect the first and second optical waveguide sheets 1, 2 from damage due to external forces or collisions, the protective member 3 comprises the first tempered glass 31 and the second tempered glass 32. The first and second tempered glasses 31, 32 are disposed on the outside of the first and second optical waveguide sheets 1, 2 along the thickness direction of the first optical waveguide sheet 1, respectively, to support the first and second optical waveguide sheets 1, 2. In this way, the front and rear end surfaces are enclosed between the first and second tempered glasses 31, 32, providing the first and second optical waveguide sheets 1, 2 with a certain degree of compressive strength, thereby preventing them from being easily damaged by collisions or forces. This further strengthens the full-color diffractive optical waveguide assembly 100.
[0041] Furthermore, the first tempered glass 31 is bonded to the outside of the first optical waveguide sheet 1, and the second tempered glass 32 is bonded to the outside of the second optical waveguide sheet 2. In some embodiments, the first and second tempered glasses 31, 32 are secured to the outer end surfaces of the first and second optical waveguide sheets 1, 2 by adding fixtures or bolting. In other embodiments, the first tempered glass 31 is bonded to the outside of the first optical waveguide sheet 1, and the second tempered glass 32 is bonded to the outside of the second optical waveguide sheet 2. This arrangement, through bonding, can both save costs and achieve a lightweight design, thereby providing a better user experience.
[0042] In addition, please refer to Figure 1 The first and second optical waveguide sheets 1 and 2 are provided with avoidance curved grooves 11 corresponding to the human nose. It is understood that due to the influence of the human facial organs, in order to allow the first and second optical waveguide sheets 1 and 2 to better fit the human eye organs, thereby facilitating a better visual experience for the user, the first and second optical waveguide sheets 1 and 2 are provided with avoidance curved grooves 11 corresponding to the human nose. By providing the avoidance curved grooves 11 to avoid the bridge of the human nose, the first and second optical waveguide sheets 1 and 2 are better placed to fit the human eye organs, thereby providing a better user experience.
[0043] The present invention also proposes an AR glasses lens assembly 200, please refer to Figure 3 and Figure 4 The AR glasses lens assembly 200 includes a full-color diffraction optical waveguide assembly 100 and a mounting bracket 201.
[0044] The specific structure of the full-color diffraction optical waveguide component 100 refers to the above-mentioned embodiment. For example, the full-color diffraction optical waveguide component 100 includes a first optical waveguide sheet 1 and a second optical waveguide sheet 2. The first optical waveguide sheet 1 extends in a planar shape and has a first grating structure. A first left-viewing portion and a first right-viewing portion are provided corresponding to the human eye. The second optical waveguide sheet 2 extends in a planar shape and has a second grating structure. A second left-viewing portion and a second right-viewing portion are provided corresponding to the human eye. The first optical waveguide sheet 1 and the second optical waveguide sheet 2 are arranged in a bonded manner, with at least the first left-viewing portion being bonded to the second left-viewing portion, and the first right-viewing portion being bonded to the second right-viewing portion. Since the AR glasses lens component 200 adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above-mentioned embodiments, which will not be repeated here. The mounting bracket 201 is used to mount and fix the full-color diffraction optical waveguide component 100.
[0045] For further information, please refer to Figure 3 The mounting bracket 201 is recessed with a glue groove 2011 for dispensing glue in the glue groove 2011 to bond the full-color diffractive optical waveguide assembly 100. It is understood that in order to secure the full-color diffractive optical waveguide assembly 100 to the mounting bracket 201, the mounting bracket 201 is specifically recessed with a glue groove 2011 for dispensing glue in the glue groove 2011 to bond the full-color diffractive optical waveguide assembly 100. With this arrangement, a certain amount of reinforced glue can be dispensed in the glue groove 2011, and the full-color diffractive optical waveguide assembly 100 is thus mounted on the mounting bracket 201. This assembly forms the AR glasses lens assembly 200, thereby forming a mounting foundation for the full-color diffractive optical waveguide assembly 100. At the same time, the depth H of the glue groove 2011 is 0.1-0.15 mm. Through the previously provided first strengthened glass 31 and second strengthened glass 32 , the full-color diffraction optical waveguide assembly 100 can withstand a free fall of up to 1.8 meters without breaking.
[0046] In addition, please refer to Figure 4 , the mounting bracket 201 is provided with a reinforcing rib 2012 at the avoidance bend groove 11. It is understandable that in order to further enhance the reliability of the AR glasses lens assembly 200 and prevent damage to the full-color diffraction optical waveguide assembly 100 due to external forces or bumps, the mounting bracket 201 is provided with a reinforcing rib 2012 at the avoidance bend groove 11. The support of the reinforcing rib 2012 protects the full-color diffraction optical waveguide assembly 100, while also further protecting the reliability of the AR glasses lens assembly 200, thereby improving the user experience.
[0047] The present invention also proposes an AR glasses, which includes an AR glasses lens assembly 200. The specific structure of the AR glasses lens assembly 200 refers to the above embodiments. Since the AR glasses adopt all the technical solutions of all the above embodiments, they at least have all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.
[0048] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A full-color diffraction optical waveguide component, characterized in that: include: The first optical waveguide plate extends in a planar shape and has a first grating structure, and is provided with a first left viewing portion and a first right viewing portion corresponding to the human eye; as well as, The second optical waveguide plate extends in a planar shape and has a second grating structure, and is provided with a second left viewing portion and a second right viewing portion corresponding to the human eye; The first optical waveguide sheet and the second optical waveguide sheet are bonded together, with at least the first left viewing portion being bonded together with the second left viewing portion, and the first right viewing portion being bonded together with the second right viewing portion.
2. The full-color diffraction optical waveguide assembly according to claim 1, wherein: The first optical waveguide sheet and the second optical waveguide sheet are connected by bonding.
3. The full-color diffraction optical waveguide assembly according to claim 1, wherein: The full-color diffraction optical waveguide assembly further includes a protective member for protecting the first optical waveguide plate and the second optical waveguide plate.
4. The full-color diffraction optical waveguide assembly according to claim 3, wherein: The protective member includes a first strengthened glass and a second strengthened glass, which are respectively provided on the outer sides of the first and second optical waveguide sheets along the thickness direction of the first optical waveguide sheet to enclose the first and second optical waveguide sheets.
5. The full-color diffraction optical waveguide assembly according to claim 4, wherein: The first strengthened glass is bonded to the outside of the first optical waveguide sheet, and the second strengthened glass is bonded to the outside of the second optical waveguide sheet.
6. The full-color diffraction optical waveguide assembly according to claim 1, wherein: The first optical waveguide plate and the second optical waveguide plate are provided with avoidance bending grooves corresponding to the human nose.
7. An AR glasses lens assembly, characterized in that: include: The full-color diffraction optical waveguide component according to any one of claims 1 to 6; The mounting bracket is used to install and fix the full-color diffraction optical waveguide component.
8. The AR glasses lens assembly according to claim 7, wherein: The mounting bracket is concavely provided with a glue groove for dispensing glue in the glue groove to bond with the full-color diffraction optical waveguide component.
9. The AR glasses lens assembly according to claim 7, wherein: The mounting bracket is provided with reinforcing ribs at the avoidance bend groove.
10. AR glasses, characterized in that: Comprising an AR glasses lens assembly as described in any one of claims 7-9.