AR lens group edge sealing adsorption device

Abstract

The utility model provides an AR lens group edge sealing adsorption device which comprises an adsorption mechanism and a heating part, the adsorption mechanism is used for adsorbing an AR lens group, the heating part is arranged on the adsorption mechanism, and in the operation process that the side edge of the AR lens group adsorbed by the adsorption mechanism is subjected to edge sealing through glue, the heating part heats glue on the side edge of the AR lens group. The problem that the viscosity of glue sprayed on the side edge of the AR lens group is too high due to the fact that the temperature of the glue is reduced in the process that the glue is sprayed out of the glue spraying mechanism to fall on the side edge of the AR lens group is solved, and the leveling property of glue coating on the side edge of the AR lens group is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of AR diffractive optical waveguide lenses, and particularly relates to an edge sealing and adsorption device for an AR lens group. Background Technique

[0002] With the development of information technology, Augmented Reality (AR) technology has become increasingly mature and is being more and more widely applied in industries such as education, medical treatment, entertainment, and industry.

[0003] Augmented reality technology can be implemented through many hardware platforms. Among them, AR glasses have attracted much attention due to their lightweight and convenient characteristics. At present, relatively mature AR glasses technical solutions are mainly divided into prism solutions, birdbath solutions, free-form surface solutions, off-axis holographic lens solutions, and diffractive optical waveguide solutions. Diffractive optical waveguides are considered the main optical solution for consumer-grade AR glasses lenses due to their thin and light characteristics and high penetration of external light. According to different grating types, diffractive optical waveguides can be divided into two categories: surface relief grating waveguides and volume holographic grating waveguides.

[0004] The surface relief grating waveguide includes a waveguide substrate, an input grating, and an output grating. The input grating and the output grating are arranged on the waveguide substrate, and its basic principle is as Figure 1 shown. The light output by the optical machine 1 (imaging device) is coupled into the waveguide substrate 2 by the input grating 3 and propagates in the waveguide substrate 2 by total reflection. Whenever it encounters the output grating 4, a part of the light is coupled out. The coupled-out light (the solid line in the direction of entering the human eye in the figure) enters the human eye, so that an image identical to the output of the optical machine 1 can be seen. At the same time, the human eye can see the real-world scene (the dotted line in the direction of entering the human eye in the figure). The overlap of the two parts can achieve the function of augmented reality.

[0005] Taking the surface relief grating waveguide as an example, a preparation scheme for an existing AR lens is as follows:

[0006] 1. Prepare an imprint master with a preset grating pattern.

[0007] 2. Transfer the grating pattern of the imprint master to the soft film through nanoimprint technology to obtain an anti-pattern of the grating pattern on the soft film:

[0008] Specifically, spin-coat the imprinting adhesive evenly on the imprint master, attach the soft film substrate to the imprint master, apply pressure so that the imprinting adhesive fills into the grating pattern of the imprint master, obtain an anti-pattern of the grating pattern on the imprinting adhesive, cure with ultraviolet light and demold, and transfer the imprinting adhesive with the anti-pattern of the grating pattern to the soft film substrate to obtain a soft film with an anti-pattern of the grating pattern.

[0009] 3. Transfer the anti-pattern of the grating pattern on the soft film to the waveguide substrate through a nanoimprint process to obtain a waveguide substrate with a grating pattern, thereby obtaining a surface-relief grating waveguide.

[0010] Specifically, a tackifier and a product glue are spin-coated on the waveguide substrate in sequence. The soft film with the anti-pattern of the grating pattern is adhered to the product glue on the waveguide substrate, and pressure is applied to make the product glue fill into the anti-pattern of the grating pattern of the soft film, so as to obtain a grating pattern on the product glue. Then, it is cured with ultraviolet light and demolded to separate the soft film with the anti-pattern of the grating pattern from the product glue with the grating pattern, obtaining a waveguide substrate with a grating pattern, that is, a surface-relief grating waveguide.

[0011] 4. Cut the surface-relief grating waveguide to obtain a waveguide lens corresponding to the shape of the AR lens.

[0012] 5. Perform a lamination operation and an edge-sealing operation on the waveguide lens to obtain an AR lens:

[0013] 5-1 According to the hierarchical structure of the AR lens (composed of at least one cover plate and at least one waveguide plate), perform a lamination operation between adjacent parallel cover plates and waveguide plates or between waveguide plates using a lamination glue to obtain a laminated AR lens group.

[0014] 5-2 Perform an edge-sealing operation on the side of the AR lens group using a light-shielding glue to obtain an AR lens:

[0015] Exemplarily, the AR lens group is adsorbed on the top surface of the adsorption mechanism, the first rotation mechanism is used to drive the adsorption mechanism to rotate 90°, and the second rotation structure is used to drive the AR lens group to rotate 360° through the adsorption mechanism. During the 360° rotation of the AR lens group, the glue spraying mechanism located above the AR lens group sprays the light-shielding glue on the side of the AR lens group.

[0016] The light-shielding glue sprayed on the side of the AR lens group needs to diffuse on the side of the AR lens group by relying on its own fluidity. Therefore, there are certain requirements for the viscosity of the light-shielding glue sprayed on the side of the AR lens group. If the viscosity of the glue sprayed on the side of the AR lens group is too high, some points on the side of the AR lens group will be lacking glue due to poor fluidity of the glue. If the viscosity of the glue sprayed on the side of the AR lens group is too low, some points on the side of the AR lens group will accumulate glue, resulting in uneven coating thickness of the glue on the entire side of the AR lens group.

[0017] However, during the process of spraying the light-shielding glue on the side of the AR lens group by the existing glue spraying mechanism, since the temperature of the glue will decrease during the process of the glue being ejected from the glue spraying mechanism and falling on the side of the AR lens group, the viscosity of the glue sprayed on the side of the AR lens group is too high. Utility Model Content

[0018] To overcome the defects of the prior art, the present utility model provides an edge sealing and adsorption device for an AR lens group.

[0019] The present utility model is realized through the following technical solutions:

[0020] The present utility model provides an edge sealing and adsorption device for an AR lens group, including an adsorption mechanism and a heating component;

[0021] The adsorption mechanism is used to adsorb the AR lens group;

[0022] The heating component is arranged on the adsorption structure;

[0023] During the process of edge sealing the AR lens group adsorbed by the adsorption mechanism with glue, the heating component heats the glue on the side of the AR lens group.

[0024] Furthermore, the adsorption mechanism includes a first base component, a connecting component, and an adsorption platform component;

[0025] One end of the connecting component is connected to the first base component, and the other end of the connecting component is connected to the adsorption platform component;

[0026] A first ventilation hole penetrating the first base component is arranged in the first base component, a second ventilation hole penetrating the connecting component is arranged in the connecting component, and a ventilation structure for adsorbing the AR lens group is arranged in the adsorption platform component;

[0027] One end of the first ventilation hole is communicated with a ventilation pipeline, the other end of the first ventilation hole is communicated with the second ventilation hole, and the second ventilation hole is communicated with the ventilation structure.

[0028] Furthermore, it also includes a second base component and a first driving component;

[0029] One end of the first driving component is connected to the first base component, and the other end of the first driving component is connected to the second base component.

[0030] Furthermore, the heating component is wound around the outer wall of the connecting component.

[0031] Furthermore, a first groove is formed around the first ventilation hole on the bottom surface of the first base component;

[0032] A sealing ring is arranged in the first groove.

[0033] Furthermore, a second groove is formed around the first groove on the bottom surface of the first base component;

[0034] The heating component is arranged in the second groove.

[0035] Further, the heating component uses a heating wire.

[0036] Further, a second driving component is arranged at the end face edge of the end where the second base component is connected to the first driving component, and the second driving component is connected to the heating component;

[0037] The second driving component drives the heating component to move to the periphery of the adsorption platform component to perform the heating operation on the AR lens group.

[0038] Further, the heating component includes a fixing frame and a heating wire;

[0039] A third groove is formed in the inner wall of the fixing frame, and the heating wire is arranged in the third groove.

[0040] Compared with the prior art, the technical solution of the present utility model has the following beneficial effects:

[0041] The present utility model provides an AR lens group edge sealing adsorption device, including an adsorption mechanism and a heating component. The adsorption mechanism is used to adsorb the AR lens group. The heating component is arranged on the adsorption structure. During the process of edge sealing the AR lens group adsorbed by the adsorption mechanism with glue, the heating component heats the glue on the side of the AR lens group, solves the problem that the viscosity of the glue sprayed on the side of the AR lens group is too high due to the decrease in the glue temperature during the process from the glue spraying mechanism to the side of the AR lens group, and improves the leveling property of the glue coating on the side of the AR lens group. Description of the Drawings

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0043] Figure 1 Schematic diagram of the basic principle of the grating waveguide solution for example;

[0044] Figure 2 Schematic diagram of the structure of the adsorption mechanism for example;

[0045] Figure 3 For Figure 2 Partial cross-sectional view;

[0046] Figure 4 First example schematic diagram of setting the heating component on the adsorption mechanism;

[0047] Figure 5 Second example schematic diagram of setting the heating component on the adsorption mechanism;

[0048] Figure 6 The third schematic diagram showing the heating component disposed on the adsorption mechanism;

[0049] Figure 7 is Figure 6 a top view schematic diagram of

[0050] Wherein, 1-optical machine, 2-waveguide substrate, 3-coupling grating, 4-output grating, 5-second base component, 6-first driving component, 7-first base component, 8-connecting component, 9-adsorption platform component, 10-fixing hole, 11-first ventilation hole, 12-second ventilation hole, 13-sealing ring, 14-third ventilation hole, 15-connecting hole, 16-fourth ventilation hole, 17-heating component, 18-second driving component. Specific embodiments

[0051] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0052] In this article, terms such as "first", "second" and other similar terms are not intended to imply any order, quantity and importance, but are only used to distinguish different elements. In this article, terms such as "a", "an" and other similar terms are not intended to mean that there is only one of the described things, but rather that the relevant description is only directed to one of the described things, and the described thing may have one or more. In this article, terms such as "comprising", "including" and other similar terms are intended to represent a logical relationship and should not be regarded as representing a spatial structure relationship. For example, "A includes B" is intended to mean that logically B belongs to A, rather than indicating that B is located inside A in terms of space. In addition, the meanings of terms such as "comprising", "including" and other similar terms should be regarded as open rather than closed. For example, "A includes B" is intended to mean that B belongs to A, but B does not necessarily constitute all of A, and A may also include other elements such as C, D, and E.

[0053] In this text, the terms "embodiment", "this embodiment", "preferred embodiment", and "an embodiment" do not mean that the relevant description only applies to a specific embodiment, but rather that these descriptions may also apply to one or more other embodiments. Those skilled in the art should understand that in this text, any description made for a certain embodiment can be substituted, combined, or otherwise combined with the relevant descriptions in one or more other embodiments, and the new embodiments generated by such substitution, combination, or other combination are easily conceivable by those skilled in the art and fall within the protection scope of the present utility model.

[0054] In the description herein, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0055] The present utility model provides an AR lens group edge-sealing adsorption device, which generally includes an adsorption mechanism and a heating component.

[0056] The adsorption mechanism is used to adsorb the AR lens group, and the AR lens group is composed of at least one cover plate and at least one waveguide sheet. The heating component is arranged on the adsorption structure.

[0057] The existing AR lens group edge-sealing adsorption device only has an adsorption mechanism and no heating mechanism. The AR lens group edge-sealing adsorption device of the present utility model adds a heating component on the basis of the adsorption structure. During the process of edge-sealing the AR lens group adsorbed by the adsorption mechanism with glue, the heating component heats the glue on the side of the AR lens group, which can solve the problem that the viscosity of the glue sprayed on the side of the AR lens group is too high due to the decrease in the glue temperature during the process of the glue being sprayed from the glue spraying mechanism to the side of the AR lens group, and improve the leveling property of the glue coating on the side of the AR lens group.

[0058] Preferably, the above-mentioned glue is a light-shielding glue.

[0059] Exemplarily, as Figure 2 shown, the above-mentioned adsorption mechanism sequentially includes a second base component 5, a first driving component 6, a first base component 7, a connecting component 8, and an adsorption platform component 9 from bottom to top.

[0060] Among them, one end of the first driving component 6 is connected to the first base component 7 (for example, a fixing hole 10 is provided on the bottom surface of the first base component 7 (as Figure 5 shown), and the fixing hole 10 is used to connect with the first driving component 6), and the other end of the first driving component 6 is connected to the second base component 5.

[0061] One end of the connecting component 8 is connected to the first base component 7, and the other end of the connecting component 8 is connected to the adsorption platform component 9.

[0062] As Figure 3As shown in the figure, a first ventilation hole 11 penetrating through the first base component 7 is provided inside the first base component 7, a second ventilation hole 12 penetrating through the connecting component 8 is provided inside the connecting component 8, and a ventilation structure for adsorbing the AR lens group is provided inside the adsorption platform component 9.

[0063] One end of the first ventilation hole is communicated with a ventilation pipeline, the other end of the first ventilation hole is communicated with the second ventilation hole, and the second ventilation hole is communicated with the ventilation structure.

[0064] To prevent air leakage from the first ventilation hole, a first groove is formed around the first ventilation hole 11 on the bottom surface of the first base component 7, and a sealing ring 13 is arranged in the first groove (as Figure 5 shown), and the sealing ring is used to prevent air leakage from the first ventilation hole.

[0065] Exemplarily, the above-mentioned connecting component can adopt a connecting column.

[0066] Exemplarily, the above-mentioned first driving component can adopt a driving motor.

[0067] Exemplarily, the above-mentioned ventilation structure includes a third ventilation hole 14, a communication hole 15 and a fourth ventilation hole 16 (as Figure 3 shown).

[0068] The third ventilation hole 14 is arranged at the bottom end of the adsorption platform component 9, the third ventilation hole 14 is communicated with the above-mentioned second ventilation hole 12, the communication hole 15 extends from the side wall of the adsorption platform component 9 to the inside, the bottom side wall of the communication hole 15 is communicated with the third ventilation hole 14, the fourth ventilation hole 16 is arranged at the top end of the adsorption platform component 9, and the fourth ventilation hole 16 is communicated with the top side wall of the communication hole 15.

[0069] The number of the third communication holes here can be multiple, and the number of the fourth ventilation holes here can be multiple.

[0070] Exemplarily, a heating component is arranged on the adsorption structure, and the following 3 schemes can be adopted:

[0071] Scheme 1

[0072] As Figure 4 shown, a heating component 17 is wound around the outer wall of the above-mentioned connecting component 8. For example, a heating wire is wound around the outer wall of the connecting component from the bottom end to the top end of the connecting component.

[0073] During the process of sealing the side of the AR lens group adsorbed by the adsorption mechanism with glue, the heating component wound around the outer wall of the connecting component indirectly heats the glue on the side of the AR lens group, solving the problem that the viscosity of the glue sprayed on the side of the AR lens group is too high due to the decrease in the temperature of the glue during the process of the glue being sprayed from the glue spraying mechanism to falling on the side of the AR lens group, and improving the leveling property of the glue coating on the side of the AR lens group.

[0074] Solution 2

[0075] A second groove is formed around the bottom surface of the first base member 7 described above, and a heating member 17 is disposed in the second groove (as Figure 5 shown).

[0076] The number of the second grooves here can be multiple. When the number of the second grooves is multiple, a heating member is disposed in each second groove.

[0077] The heating member here can be exemplified by a heating wire.

[0078] During the process of sealing the side of the AR lens group adsorbed by the adsorption mechanism with glue, the heating member disposed on the bottom surface of the first base member indirectly heats the glue on the side of the AR lens group, solving the problem that the viscosity of the glue sprayed on the side of the AR lens group is too high due to the decrease in the glue temperature during the process of the glue being ejected from the glue spraying mechanism to falling on the side of the AR lens group, and improving the leveling property of the glue coating on the side of the AR lens group.

[0079] Solution 3

[0080] As Figure 6 and Figure 7 shown, a second driving member 18 is disposed at the edge of the end surface of the second base member 5 connected to the first driving member 6. The second driving member 18 is connected to the heating member 17, and the second driving member 18 can drive the heating member 17 to move up and down.

[0081] During the process of sealing the side of the AR lens group adsorbed by the adsorption mechanism with glue, the second driving member drives the heating member to move to the periphery of the adsorption platform member to realize the heating operation of the AR lens group. Solving the problem that the viscosity of the glue sprayed on the side of the AR lens group is too high due to the decrease in the glue temperature during the process of the glue being ejected from the glue spraying mechanism to falling on the side of the AR lens group, and improving the leveling property of the glue coating on the side of the AR lens group.

[0082] Exemplarily, the second driving member can be a cylinder, and the number of the second driving members can be multiple.

[0083] Exemplarily, the heating member can include a fixed frame and a heating wire. A third groove is formed on the inner wall of the fixed frame, and the heating wire is disposed in the third groove.

[0084] The fixed frame is preferably made of aluminum alloy or stainless steel.

[0085] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still modify or equivalently replace the specific implementation manners of the present invention. Any such modifications or equivalent replacements that do not depart from the spirit and scope of the present invention are within the scope of the claims of the present invention pending approval.

Claims

1. An AR lens set edge sealing adsorption device, characterized in that: It includes an adsorption mechanism and a heating component; The adsorption mechanism is used to adsorb the AR lens set; The heating component is arranged on the adsorption structure; During the process of sealing the side edge of the AR lens set adsorbed by the adsorption mechanism with glue, the heating component heats the glue on the side edge of the AR lens set.

2. The AR lens assembly edge sealing adsorption device according to claim 1, characterized in that: The adsorption mechanism comprises a first base component, a connecting component and an adsorption platform component; One end of the connecting component is connected to the first base component, and the other end of the connecting component is connected to the adsorption platform component; A first vent hole penetrating through the first base component is provided in the first base component, a second vent hole penetrating through the connecting component is provided in the connecting component, and a vent structure for adsorbing the AR lens assembly is provided in the adsorption platform component; One end of the first vent hole is communicated with the ventilation pipe, the other end of the first vent hole is communicated with the second vent hole, and the second vent hole is communicated with the ventilation structure.

3. The AR lens assembly edge sealing adsorption device according to claim 2, characterized in that: Also comprising a second base member and a first drive member; One end of the first driving component is connected to the first base component, and the other end of the first driving component is connected to the second base component.

4. The AR lens assembly edge sealing adsorption device according to claim 2, characterized in that: A heating component is arranged around the outer wall of the connecting component.

5. The AR lens assembly edge sealing adsorption device according to claim 2, characterized in that: A first groove is formed on the bottom surface of the first base component around the first vent hole; A sealing ring is arranged in the first groove.

6. The AR lens assembly edge sealing adsorption device according to claim 5, characterized in that: The bottom surface of the first base component is provided with a second groove around the first groove; A heating component is arranged in the second groove.

7. The AR lens assembly edge sealing adsorption device according to claim 4 or 6, characterized in that: The heating component adopts a heating wire.

8. The AR lens assembly edge sealing adsorption device according to claim 3, characterized in that: A second driving component is arranged at an end surface edge of one end of the second base component connected to the first driving component, and the second driving component is connected to the heating component; The second driving component drives the heating component to move to the periphery of the adsorption platform component to achieve a heating operation on the AR lens group.

9. The AR lens assembly edge sealing adsorption device according to claim 8, characterized in that: The heating component comprises a fixing frame and a heating wire; The inner wall of the fixing frame is provided with a third groove, and a heating wire is arranged in the third groove.

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