Lens assembly and interactive glasses

Abstract

The utility model provides a lens assembly and interactive glasses, the lens assembly comprises a waveguide assembly layer, a first light-transmitting layer and a second light-transmitting layer, the first light-transmitting layer has a first surface and a second surface opposite to each other, the first surface is attached to one side of the waveguide assembly layer, the second surface is a curved surface, the second light-transmitting layer has a third surface and a fourth surface opposite to each other, and the third surface is attached to one side of the waveguide assembly layer. The third surface is attached to the other side of the waveguide assembly, the fourth surface is a curved surface, the curved surface shapes of the second surface and the fourth surface are the same, and the center line of the arc bending position of the second surface and the center line of the arc bending position of the fourth surface are collinear; thus, the second surface in the first light-transmitting layer and the fourth surface in the second light-transmitting layer are both set to be curved surfaces for improving external natural light and light emitted into human eyes by the waveguide assembly layer, and meanwhile, the curved surfaces of the second surface and the fourth surface are designed to be the same in shape, so that the light emitting efficiency is improved. And the central line of the arc bending part of the second surface and the central line of the arc bending part of the fourth surface are collinear, so that the imaging definition is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of waveguide lenses, and particularly to a lens assembly and an interactive glasses. Background Art

[0002] An optical waveguide is a medium device that guides light waves to propagate therein. The optical waveguide lens directs the light signal projected by the projection optical machine into the human eye, so that the human eye can view the image displayed by the projection optical machine. At the same time, the optical waveguide lens has good light transmittance, and the human eye can also clearly see the real environment behind the optical waveguide. Therefore, what the human eye finally sees through the optical waveguide lens is the fusion of the virtual image transmitted by the projection optical machine and the real environment. Therefore, the lens assembly containing the optical waveguide lens is widely used in interactive glasses (such as AR, VR or MR).

[0003] In the prior art, in order to improve the applicable range of the lens assembly containing the optical waveguide lens, a refractive lens is usually added to the optical waveguide lens, so that the lens assembly containing the optical waveguide lens is suitable for users with hyperopia, myopia or astigmatism, etc. For example, the patent with publication number CN115494575A discloses a waveguide structure and a display device. The waveguide structure includes a waveguide sheet, a dielectric layer (transparent glue) and a light-transmitting structure, wherein the light-transmitting structure is a refractive structure and includes a plano-convex lens and a plano-concave lens arranged on opposite sides of the waveguide sheet, so as to make the waveguide structure suitable for different application scenarios; however, in the above waveguide structure, the center lines of the curved surface arc bends of the plano-convex lens and the center lines of the curved surface arc bends of the plano-concave lens are not collinear, which affects the imaging clarity of the waveguide structure. Summary of the Utility Model

[0004] The present disclosure provides a lens assembly and an interactive glasses to at least solve the above problems in the prior art.

[0005] To achieve the above object, the present disclosure provides the following technical solution: A lens assembly, comprising:

[0006] A waveguide component layer;

[0007] A first light-transmitting layer having a first surface and a second surface opposite to each other. The first surface is attached to one side of the waveguide component layer, and the second surface is a curved surface;

[0008] A second light-transmitting layer having a third surface and a fourth surface opposite to each other. The third surface is attached to the other side of the waveguide component layer, and the fourth surface is a curved surface; wherein,

[0009] The curved surface shapes of the second surface and the fourth surface are the same, and the center line of the arc bend of the second surface is collinear with the center line of the arc bend of the fourth surface.

[0010] In an implementable embodiment, the shape and size of the projection of the first light-transmitting layer onto the plane on one side of the waveguide component layer along the center line direction of the waveguide component layer are exactly the same as the shape and size of the projection of the second light-transmitting layer onto the plane on the other side of the waveguide component layer along the center line direction of the waveguide component layer.

[0011] In an implementable embodiment, the first light-transmitting layer is a plano-convex lens, and the second light-transmitting layer is a plano-concave lens; or, the first light-transmitting layer is a plano-concave lens, and the second light-transmitting layer is a plano-convex lens; or, both the first light-transmitting layer and the second light-transmitting layer are plano-convex lenses; or, both the first light-transmitting layer and the second light-transmitting layer are plano-concave lenses.

[0012] In an implementable embodiment, the waveguide component layer includes:

[0013] An electrochromic layer having opposite fifth and sixth surfaces, and the first light-transmitting layer is attached to the fifth surface;

[0014] A waveguide layer having opposite seventh and eighth surfaces, the seventh surface is attached to the sixth surface, and the eighth surface is attached to the second light-transmitting layer.

[0015] In an implementable embodiment, the electrochromic layer and the waveguide layer are adhesively fixed through a first transparent adhesive layer, the electrochromic layer and the first light-transmitting layer are adhesively fixed through a second transparent adhesive layer, and the waveguide layer and the second light-transmitting layer are adhesively fixed through a third transparent adhesive.

[0016] In an implementable embodiment, the lens assembly further includes a first sealant, and the first sealant is bonded to the outer peripheries of the waveguide component layer, the first light-transmitting layer, and the second light-transmitting layer for sealing and fixing the waveguide component layer, the first light-transmitting layer, and the second light-transmitting layer.

[0017] In an implementable embodiment, the lens assembly further includes a second sealant, the outer ring of the second sealant is bonded to the inner ring of the first sealant, and the inner ring of the second sealant is bonded to the outer peripheral surface of the electrochromic layer for sealing and fixing the electrochromic layer.

[0018] The present disclosure also provides the following technical solution: An interactive glasses, including:

[0019] Two sets of the above-mentioned lens assemblies;

[0020] A spectacle frame having two frame rings, and each set of the lens assemblies is installed in a corresponding one of the frame rings.

[0021] In an implementable embodiment, each set of the lens assemblies is snap-connected to a corresponding one of the frame rings.

[0022] In an implementable embodiment, a first annular notch is provided at the outer peripheral edge of the second surface, and a second annular notch is provided at the outer peripheral edge of the fourth surface;

[0023] On the side wall of the frame ring, a first protruding ring and a second protruding ring protrude radially along the frame ring. The first protruding ring is used to be snapped into the first annular notch, and the second protruding ring is used to be held in the second annular notch.

[0024] In the above lens assembly, by arranging the waveguide component layer between the first light-transmitting layer and the second light-transmitting layer, it is convenient to protect the waveguide component layer. By setting both the second surface in the first light-transmitting layer and the fourth surface in the second light-transmitting layer as curved surfaces, it is used to improve the natural light from the outside and the light emitted from the waveguide component layer to the human eye. At the same time, by designing the curved surface shapes of the second surface and the fourth surface to be the same shape, and making the center line of the arc bend of the second surface collinear with the center line of the arc bend of the fourth surface, it is convenient to improve the imaging clarity.

[0025] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present disclosure, nor is it used to limit the scope of the present disclosure. Other features of the present disclosure will become easily understandable through the following description. Brief Description of the Drawings

[0026] By reading the following detailed description with reference to the accompanying drawings, the above and other purposes, features, and advantages of the exemplary embodiments of the present disclosure will become easily understandable. In the drawings, several embodiments of the present disclosure are shown in an exemplary rather than restrictive manner, where:

[0027] In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.

[0028] Figure 1 Shows a schematic cross-sectional view of the lens assembly in an embodiment of the present disclosure;

[0029] Figure 2 Shows Figure 1 the exploded view of the lens assembly in

[0030] Description of the reference numerals in the drawings:

[0031] In the figure: 10, lens assembly; 11, waveguide assembly layer; 111, electrochromic layer; 1111, fifth surface; 1112, sixth surface; 112, waveguide layer; 1121, seventh surface; 1122, eighth surface; 12, first light-transmitting layer; 121, first surface; 122, second surface; 123, first annular notch; 13, second light-transmitting layer; 131, third surface; 132, fourth surface; 133, second annular notch; 14, first transparent adhesive layer; 15, second transparent adhesive layer; 16, third transparent adhesive; 17, first sealant; 18, second sealant. Detailed implementation manners

[0032] To make the objectives, features, and advantages of the present disclosure more obvious and understandable, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present disclosure.

[0033] It should be understood that various forms of processes shown above can be used, steps can be reordered, added, or deleted. For example, the steps recorded in the present disclosure can be executed in parallel, sequentially, or in a different order, as long as the desired results of the technical solutions of the present disclosure can be achieved, and no limitations are imposed herein.

[0034] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present disclosure, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0035] The following is described in conjunction with the accompanying drawings for the embodiments provided by the present utility model.

[0036] Please refer to Figure 1 , the embodiments of the present disclosure provide a lens assembly 10. The lens assembly 10 includes a waveguide assembly layer 11, a first light-transmitting layer 12, and a second light-transmitting layer 13. The first light-transmitting layer 12 has opposite first surface 121 and second surface 122. The first surface 121 is attached to one side of the waveguide assembly layer 11, and the second surface 122 is a curved surface. The second light-transmitting layer 13 has opposite third surface 131 and fourth surface 132. The third surface 131 is attached to the other side of the waveguide assembly, and the fourth surface 132 is a curved surface. The curved surface shapes of the second surface 122 and the fourth surface 132 are the same, and the center lines of the arc bends of the second surface 122 and the fourth surface 132 are collinear.

[0037] In the above lens assembly 10, by disposing the waveguide component layer 11 between the first light-transmitting layer 12 and the second light-transmitting layer 13, it is convenient to protect the waveguide component layer 11. By setting both the second surface 122 in the first light-transmitting layer 12 and the fourth surface 132 in the second light-transmitting layer 13 as curved surfaces, it is used to improve the external natural light and the light emitted from the waveguide component layer 11 into the human eye. At the same time, by designing the curved surface shapes of the second surface 122 and the fourth surface 132 to be the same shape, and making the center line at the arc bend of the second surface 122 collinear with the center line at the arc bend of the fourth surface 132, it is convenient to improve the imaging clarity.

[0038] It can be understood that the arc bend of the second surface 122 is the top or bottom of the curved surface. When the second surface 122 is a convex curved surface, the arc bend of the second surface 122 is the top of the curved surface. When the second surface 122 is a concave surface, the arc bend of the second surface 122 is the bottom of the curved surface; the arc bend of the fourth surface 132 is the top or bottom of the curved surface. When the fourth surface 132 is a convex curved surface, the arc bend of the fourth surface 132 is the top of the curved surface. When the fourth surface 132 is a concave curved surface, the arc bend of the fourth surface 132 is the bottom of the curved surface.

[0039] Please refer to Figure 1 , in some embodiments, the first light-transmitting layer 12 is a plano-convex lens. Correspondingly, the first surface 121 of the first light-transmitting layer 12 is a plane, and the second surface 122 of the first light-transmitting layer 12 is a convex curved surface, and the convex curved surface is a spherical curved surface or a non-spherical curved surface; the second light-transmitting layer 13 is a plano-concave lens. Correspondingly, the third surface 131 of the second light-transmitting layer 13 is a plane, and the fourth surface 132 of the second light-transmitting layer 13 is a concave curved surface, and the concave curved surface is a spherical curved surface or a non-spherical curved surface.

[0040] In some embodiments, the first light-transmitting layer 12 is a plano-concave lens. Correspondingly, the first surface 121 of the first light-transmitting layer 12 is a plane, and the second surface 122 of the first light-transmitting layer 12 is a concave curved surface, and the concave curved surface is a spherical curved surface or a non-spherical curved surface; the second light-transmitting layer 13 is a plano-convex lens. Correspondingly, the third surface 131 of the second light-transmitting layer 13 is a plane, and the fourth surface 132 of the second light-transmitting layer 13 is a convex curved surface, and the convex curved surface is a spherical curved surface or a non-spherical curved surface.

[0041] In some embodiments, both the first light-transmitting layer 12 and the second light-transmitting layer 13 are plano-convex lenses. Correspondingly, both the first surface 121 of the first light-transmitting layer 12 and the third surface 131 of the second light-transmitting layer 13 are planes, and both the second surface 122 of the first light-transmitting layer 12 and the fourth surface 132 of the second light-transmitting layer 13 are convex curved surfaces, and the convex curved surfaces are spherical curved surfaces or non-spherical curved surfaces.

[0042] In some embodiments, both the first light-transmitting layer 12 and the second light-transmitting layer 13 are plano-concave lenses. Correspondingly, the first surface 121 of the first light-transmitting layer 12 and the third surface 131 of the second light-transmitting layer 13 are both flat surfaces, and the second surface 122 of the first light-transmitting layer 12 and the fourth surface 132 of the second light-transmitting layer 13 are both concave curved surfaces, and the concave curved surface is a spherical curved surface or a non-spherical curved surface.

[0043] Please refer to Figure 1 , in some embodiments, the shape and size of the projection of the first light-transmitting layer 12 onto the plane on one side of the waveguide component layer 11 along the center line direction of the waveguide component layer 11 are exactly the same as the shape and size of the projection of the second light-transmitting layer 13 onto the plane on the other side of the waveguide component layer 11 along the center line direction of the waveguide component layer 11, so as to improve the field of view clarity of the lens assembly 10.

[0044] It can be understood that in the prior art, usually the size of the plano-convex lens is larger than that of the plano-concave lens, resulting in a smaller clear field of view of the lens assembly 10, and at the outer edge, there will be a positive diopter phenomenon.

[0045] Please refer to Figure 2 , in some embodiments, the waveguide component layer 11 includes an electrochromic layer 111 and a waveguide layer 112. The electrochromic layer 111 has opposite fifth surface 1111 and sixth surface 1112. The first light-transmitting layer 12 is attached to the fifth surface 1111. The waveguide layer 112 has opposite seventh surface 1121 and eighth surface 1122. The seventh surface 1121 is attached to the sixth surface 1112, and the eighth surface 1122 is attached to the second light-transmitting layer 13. Thus, the intensity of the light incident on the waveguide layer 112 is adjusted by the electrochromic layer 111 to meet the needs of people sensitive to light.

[0046] Please refer to Figure 1 , in some embodiments, the electrochromic layer 111 and the waveguide layer 112 are adhesively fixed by a first transparent adhesive layer 14 to facilitate the fixation between the electrochromic layer 111 and the waveguide layer 112. The electrochromic layer 111 and the first light-transmitting layer 12 are fixed by a second transparent adhesive layer 15 to facilitate the fixation between the electrochromic layer 111 and the first light-transmitting layer 12. The waveguide layer 112 and the second light-transmitting layer 13 are adhesively fixed by a third transparent adhesive 16 to facilitate the fixation between the waveguide layer 112 and the second light-transmitting layer 13.

[0047] Please refer to Figure 1, in some embodiments, the lens assembly 10 further includes a first sealant 17, and the first sealant 17 is bonded to the outer periphery of the waveguide component layer 11, the first light-transmitting layer 12, and the second light-transmitting layer 13 for sealing and fixing the waveguide component layer 11, the first light-transmitting layer 12, and the second light-transmitting layer 13. The first sealant 17 is used to seal the gaps between the waveguide component layer 11, the first light-transmitting layer 12, and the second light-transmitting layer 13 to prevent water and dust from contaminating the lens assembly 10. At the same time, the first sealant 17 also has the effect of bonding and fixing, so as to further bond and fix the waveguide component layer 11, the first light-transmitting layer 12, and the second light-transmitting layer 13, thereby improving the stability of the lens assembly 10.

[0048] Please refer to Figure 1 , in some embodiments, the lens assembly 10 further includes a second sealant 18. The outer ring of the second sealant 18 is bonded to the inner ring of the first sealant 17, and the inner ring of the second sealant 18 is bonded to the outer peripheral surface of the electrochromic layer 111 for sealing and fixing the electrochromic layer 111.

[0049] The electrochromic layer 111 is usually formed into a multi-layer structure by an electrochromic device layer (not shown in the figure) and a transparent solar thin film layer (not shown in the figure), etc. The second sealant 18 is used to seal and fix the electrochromic layer 111 with a multi-layer structure, so as to further improve the dust-proof and anti-fouling performance of the electrochromic layer 111.

[0050] The embodiments of the present disclosure also provide an interactive glasses, including two sets of lens assemblies 10 and a frame. The frame has two frame rings, and each set of lens assemblies 10 is installed in a corresponding frame ring (not shown in the figure).

[0051] In some embodiments, each set of lens assemblies 10 is snap-connected to a corresponding frame ring to facilitate assembling the lens assemblies 10 into the frame rings.

[0052] In some embodiments, a first annular notch 123 is provided at the outer peripheral edge of the second surface 122, and a second annular notch 133 is provided at the outer peripheral edge of the fourth surface 132; on the side wall of the frame ring, a first protruding ring (not shown in the figure) and a second protruding ring (not shown in the figure) protrude radially along the frame ring. The first protruding ring is used to be snapped into the first annular notch 123, and the second protruding ring is used to be held in the second annular notch 133.

[0053] As described above, the above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered by the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A lens assembly, characterized in that, The lens assembly includes: A waveguide component layer; A first light-transmitting layer having a relative first surface and a second surface, the first surface being attached to one side of the waveguide component layer, and the second surface being a curved surface; A second light-transmitting layer having a relative third surface and a fourth surface, the third surface being attached to the other side of the waveguide component layer, and the fourth surface being a curved surface; wherein, The curved surface shapes of the second surface and the fourth surface are the same, and the center lines at the arc bends of the second surface and the fourth surface are collinear.

2. The lens assembly according to claim 1, wherein The shape and size of the projection of the first light-transmitting layer onto the plane on one side of the waveguide component layer along the center line direction of the waveguide component layer are exactly the same as the shape and size of the projection of the second light-transmitting layer onto the plane on the other side of the waveguide component layer along the center line direction of the waveguide component layer.

3. The lens assembly according to claim 1, wherein The first light-transmitting layer is a plano-convex lens, and the second light-transmitting layer is a plano-concave lens; or, The first light-transmitting layer is a plano-concave lens, and the second light-transmitting layer is a plano-convex lens; or, Both the first light-transmitting layer and the second light-transmitting layer are plano-convex lenses; or, Both the first light-transmitting layer and the second light-transmitting layer are plano-concave lenses.

4. The lens assembly according to claim 1, characterized in that, The waveguide component layer includes: An electrochromic layer having a relative fifth surface and a sixth surface, the first light-transmitting layer being attached to the fifth surface; A waveguide layer having a relative seventh surface and an eighth surface, the seventh surface being attached to the sixth surface, and the eighth surface being attached to the second light-transmitting layer.

5. The lens assembly according to claim 4, wherein, The electrochromic layer and the waveguide layer are adhesively fixed through a first transparent adhesive layer, the electrochromic layer and the first light-transmitting layer are adhesively fixed through a second transparent adhesive layer, and the waveguide layer and the second light-transmitting layer are adhesively fixed through a third transparent adhesive.

6. The lens assembly according to claim 4, wherein The lens assembly further includes a first sealant, and the first sealant is adhesively bonded to the outer periphery of the waveguide component layer, the first light-transmitting layer, and the second light-transmitting layer for sealing and fixing the waveguide component layer, the first light-transmitting layer, and the second light-transmitting layer.

7. The lens assembly according to claim 6, wherein The lens assembly further includes a second sealant, the outer ring of the second sealant is adhesively bonded to the inner ring of the first sealant, and the inner ring of the second sealant is adhesively bonded to the outer peripheral surface of the electrochromic layer for sealing and fixing the electrochromic layer.

8. An interactive glasses, characterized in that, Includes: Two sets of lens assemblies according to any one of claims 1-7; A spectacle frame having two frame rings, and each set of the lens assemblies is installed in a corresponding one of the frame rings.

9. The interactive glasses according to claim 8, wherein Each set of the lens assemblies is snap-connected to a corresponding one of the frame rings.

10. The interactive glasses according to claim 9, wherein A first annular notch is provided at the outer peripheral edge of the second surface, and a second annular notch is provided at the outer peripheral edge of the fourth surface; On the side wall of the frame ring, a first protruding ring and a second protruding ring protrude radially along the frame ring. The first protruding ring is used to be inserted into the first annular notch, and the second protruding ring is used to be held in the second annular notch.

Images