CN219105314U - Lens assembly and AR glasses - Google Patents
Lens assembly and AR glasses Download PDFInfo
- Publication number
- CN219105314U CN219105314U CN202321004147.9U CN202321004147U CN219105314U CN 219105314 U CN219105314 U CN 219105314U CN 202321004147 U CN202321004147 U CN 202321004147U CN 219105314 U CN219105314 U CN 219105314U
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- Prior art keywords
- water
- barrier film
- oxygen barrier
- waveguide sheet
- transparent substrate
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- 239000011521 glass Substances 0.000 title claims abstract description 18
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 46
- 239000001301 oxygen Substances 0.000 claims abstract description 46
- 230000004888 barrier function Effects 0.000 claims abstract description 43
- 239000000758 substrate Substances 0.000 claims abstract description 33
- 239000000853 adhesive Substances 0.000 claims abstract description 29
- 230000001070 adhesive effect Effects 0.000 claims abstract description 29
- 239000002131 composite material Substances 0.000 claims abstract description 29
- 239000000565 sealant Substances 0.000 claims abstract description 19
- 230000003287 optical effect Effects 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 239000010408 film Substances 0.000 claims description 37
- 239000004568 cement Substances 0.000 claims description 7
- 239000011325 microbead Substances 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 239000012788 optical film Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000003667 anti-reflective effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000001953 sensory effect Effects 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 230000003416 augmentation Effects 0.000 description 1
- 230000003190 augmentative effect Effects 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000001755 magnetron sputter deposition Methods 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Landscapes
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
Abstract
The utility model relates to the technical field of electrochromic, and discloses a lens component and AR glasses, wherein the lens component comprises: a transparent substrate; an inorganic all-solid-state electrochromic composite layer arranged on the inner side of the transparent substrate; the water-oxygen barrier film is positioned on the inner side of the inorganic all-solid-state electrochromic composite layer; the first optical adhesive is positioned between the inorganic all-solid-state electrochromic composite layer and the water-oxygen barrier film; the waveguide sheet is positioned at the inner side of the water-oxygen barrier film; the structural adhesive is used for bonding the water-oxygen barrier film and the waveguide sheet and is arranged between the water-oxygen barrier film and the waveguide sheet in a surrounding manner to form a cavity; and the sealant is arranged between the transparent substrate and the waveguide sheet in a surrounding manner, and forms a sealing space together with the transparent substrate and the waveguide sheet. The utility model provides a scheme for combining an electrochromic lens and a waveguide plate, which can adapt to strong light and weak light environments; in addition, the water-oxygen barrier film is arranged on the inner side of the electrochromic lens, so that the service life and weather resistance of the electrochromic lens are better.
Description
Technical Field
The utility model relates to the technical field of electrochromic, in particular to a lens component and AR glasses.
Background
AR (augmented reality ) glasses superimpose a virtual image on a real world image and then pass it to the user through visual and other sensory means to assist the user's sensory to receive information that would not have been readily available from the real world. The AR glasses include a lens assembly through which light of the virtual image and light of the real world can reach the eyes of the user, such that the real world image and the virtual image can coexist in the same space and be perceived by human senses, thereby achieving a sensory experience that is beyond reality, i.e., achieving "augmentation" to the real world.
The prior AR glasses have the following problems in use: AR glasses show good effect in low light conditions, but in high light conditions consumers can see no clear image due to interference of high ambient light. In the prior art, the electrochromic composite layer is applied to the AR glasses, but the sealing problem of the electrochromic composite layer is not considered, the electrochromic composite layer is easily affected by water vapor and oxygen, and the service life is not as long as expected.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a lens assembly and AR glasses.
In order to solve the technical problems, the utility model adopts the following technical scheme:
a lens assembly, comprising:
a transparent substrate;
an inorganic all-solid-state electrochromic composite layer arranged on the inner side of the transparent substrate;
the water-oxygen barrier film is positioned on the inner side of the inorganic all-solid-state electrochromic composite layer;
the first optical adhesive is positioned between the inorganic all-solid-state electrochromic composite layer and the water-oxygen barrier film and used for bonding the inorganic all-solid-state electrochromic composite layer and the water-oxygen barrier film;
the waveguide sheet is positioned at the inner side of the water-oxygen barrier film;
the structural adhesive is annular, is used for bonding the water-oxygen barrier film and the waveguide sheet, and is arranged between the water-oxygen barrier film and the waveguide sheet in a surrounding manner to form a cavity;
the sealant is annular, is arranged between the transparent substrate and the waveguide sheet in a surrounding mode, and forms a sealing space with the transparent substrate and the waveguide sheet.
Further, the outer side of the sealant is in sealing connection with the inner side of the transparent substrate or the peripheral edge of the transparent substrate; the inner side of the sealant is in sealing connection with the outer side of the waveguide sheet, the circumferential edge of the waveguide sheet or the structural adhesive.
Further, a first anti-reflection layer is arranged on the outer side of the transparent substrate.
Further, a second anti-reflection layer is arranged on the inner side of the inorganic all-solid-state electrochromic composite layer; the first optical cement is used for bonding the second anti-reflection layer and the water-oxygen barrier film.
Further, microbeads for limiting the thickness of the structural adhesive are arranged in the structural adhesive.
Further, the diameter of the microbeads is 10-500 microns.
Further, a third anti-reflection layer is arranged on the inner side of the water-oxygen barrier film; the structural adhesive is arranged between the third anti-reflection layer and the waveguide sheet in a surrounding mode, and the cavity is formed.
Further, the optical film comprises a third antireflection layer positioned on the inner side of the water-oxygen barrier film and a second optical adhesive positioned between the third antireflection layer and the water-oxygen barrier film; the second optical adhesive is used for bonding the third anti-reflection layer on the inner side of the water-oxygen barrier film; the structural adhesive is arranged between the third anti-reflection layer and the waveguide sheet in a surrounding mode, and the cavity is formed. Compared with the scheme of directly preparing the third anti-reflection layer on the inner side of the water-oxygen barrier film, the scheme of bonding the third anti-reflection layer through the optical cement has lower cost and higher yield.
An AR eyeglass comprising a frame having a mounting opening, and said lens assembly; the lens component is embedded in the mounting opening.
Compared with the prior art, the utility model has the beneficial technical effects that:
the present utility model proposes a solution to combine electrochromic lenses with waveguide plates. Under strong light conditions, electrochromic lenses are colored, the transmittance of which is reduced, and the ambient light is adjusted to a lower level, which is beneficial for AR imaging. Under the condition of weak light, the electrochromic lens fades, the transmittance of the electrochromic lens is improved, and the ambient light is adjusted to a higher level, so that the electrochromic lens is beneficial to enhancing interaction with a real object; in addition, the water-oxygen barrier film is arranged on the inner side of the electrochromic lens, so that the service life and weather resistance of the electrochromic lens are better.
Drawings
FIG. 1 is a schematic diagram of a first embodiment;
FIG. 2 is a schematic diagram of a second embodiment;
FIG. 3 is a schematic structural view of a third embodiment;
fig. 4 is a schematic structural view of a fourth embodiment;
fig. 5 is a schematic structural diagram of AR glasses according to the present utility model.
Detailed Description
A preferred embodiment of the present utility model will be described in detail with reference to the accompanying drawings.
Example 1
In this embodiment, the inner side is the side (near-eye side) of the glasses close to the eyes in normal wearing and use process of the glasses, and the outer side is the side (far-eye side) of the glasses far away from the eyes in normal wearing and use process of the glasses.
As shown in fig. 1, the lens assembly in this embodiment includes: the light-emitting diode comprises a transparent substrate 101, an inorganic all-solid-state electrochromic composite layer 102, a waveguide sheet 103, a structural adhesive 112, a sealant 111, a first optical adhesive 104 and a water-oxygen barrier film 105.
The transparent substrate 101 may be glass or a transparent injection molding, such as PC, PMMA, etc.
In some preferred embodiments, the outer side of the transparent substrate 101 is provided with a first anti-reflection layer 121. The purpose of the first anti-reflection layer 121 is to increase the transmittance of the lens assembly.
An inorganic all-solid-state electrochromic composite layer 102 is arranged on the inner side of the transparent substrate 101, and the inorganic all-solid-state electrochromic composite layer 102 adopts a continuous magnetron sputtering technology and belongs to the known technology.
The transparent substrate 101 and the inorganic all-solid electrochromic composite layer 102 constitute an electrochromic lens.
In some preferred embodiments, a second anti-reflective layer 122 is disposed on the inside of the inorganic all-solid electrochromic composite layer 102. Since there is a large difference in refractive index between the inorganic all-solid electrochromic composite layer and the first optical cement 104, a second anti-reflective layer 122 is optionally provided to reduce the stronger reflection due to the large difference in refractive index.
The first optical cement 104 adheres the inorganic all-solid electrochromic composite layer (or the second anti-reflective layer 122) to the water-oxygen barrier film 105.
Optionally, the inner side of the water oxygen barrier film 105 is provided with a third anti-reflection layer 123.
In the case where the third antireflection layer 123 is not provided, the structural adhesive 112 is enclosed between the water-oxygen barrier film 105 and the waveguide sheet 103 in an annular layout, and the structural adhesive 112, the water-oxygen barrier film 105, and the waveguide sheet 103 surround to form a cavity 113. The cavity 113 is filled with a medium, and the refractive index of the medium is smaller than that of the waveguide sheet 103, so as to ensure that light rays of the virtual image propagate in the waveguide sheet 103 in a total reflection mode.
In some preferred embodiments, the medium filled in the cavity 113 is air. Because air exists in the cavity, if the water-oxygen barrier film 105 is not arranged, water vapor and oxygen in the cavity can erode the inorganic all-solid electrochromic composite layer 102 from the inner side, and the water-oxygen barrier film 105 can prevent the inorganic all-solid electrochromic composite layer from being eroded by the water vapor and oxygen on the inner side.
In some preferred embodiments, the structural adhesive 112 is provided with microbeads for defining the thickness of the structural adhesive 112, the microbeads having a diameter of 10-500 micrometers.
The sealant 111 is disposed between the transparent substrate 101 and the waveguide sheet 103, and the sealant 111 and the transparent substrate 101 and the waveguide sheet 103 together form a sealed space, so as to prevent the corrosion of external water vapor to the inorganic all-solid electrochromic composite layer 102 in the sealed space.
In this embodiment, the outer side of the sealant 111 is hermetically connected to the inner side of the transparent substrate 101, and the inner side of the sealant 111 is hermetically connected to the outer side of the waveguide sheet 103.
In order to realize the above sealing structure, the areas of the inorganic all-solid electrochromic composite layer 102, the second antireflection layer 122, the first optical cement 104, the water-oxygen barrier film 105, and the third antireflection layer 123 need to be smaller than the transparent substrate 101. In some preferred embodiments, the inorganic all-solid electrochromic composite layer 102 and the second anti-reflection layer 122 are sputtered on the inner side of the transparent substrate 101 in sequence, and then the edges of the inorganic all-solid electrochromic composite layer 102 and the second anti-reflection layer 122 are removed to expose the inner edge portion of the transparent substrate 101, so that the sealant 111 is in direct contact with the inner side of the transparent substrate 101, which is beneficial to sealing the sealed space.
The sealant 111 may be epoxy or butyl.
Example two
As shown in fig. 2, the difference between the present embodiment and the first embodiment is that the outer side of the sealant 111 in the second embodiment is sealed and connected with the inner side of the transparent substrate 101, and the inner end of the sealant 111 is sealed and connected with the structural adhesive 112.
In the second embodiment, the inner end of the sealant is not in direct contact with the waveguide sheet, but can still form a sealed space with the structural adhesive, the waveguide sheet and the transparent substrate.
Example III
As shown in fig. 3, the present embodiment differs from the first embodiment only in that in the third embodiment, the outer end of the sealant 111 is sealingly connected to the peripheral edge of the transparent substrate 101, and the inner end of the sealant 111 is sealingly connected to the peripheral edge of the waveguide sheet 103.
Example IV
As shown in fig. 4, the present embodiment differs from the second embodiment only in that the third antireflection layer 123 in the second embodiment is provided inside the water oxygen barrier film 105, that is, the third antireflection layer 123 is prepared directly inside the water oxygen barrier film 105; in the present embodiment, the third anti-reflection layer 123 is bonded inside the water oxygen barrier film 105 through the second optical adhesive 106 between the water oxygen barrier film 105 and the third anti-reflection layer 123.
Compared with the scheme of directly preparing the third anti-reflection layer on the inner side of the water-oxygen barrier film, the scheme of bonding the third anti-reflection layer through the second optical cement 106 has lower cost and higher yield.
Example five
As shown in fig. 5, the present embodiment discloses AR glasses including a frame 2 having a mounting opening and a lens assembly 1; the lens component 1 is embedded in the mounting opening.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a single embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to specific embodiments, and that the embodiments may be combined appropriately to form other embodiments that will be understood by those skilled in the art.
Claims (9)
1. A lens assembly, comprising:
a transparent substrate;
an inorganic all-solid-state electrochromic composite layer arranged on the inner side of the transparent substrate;
the water-oxygen barrier film is positioned on the inner side of the inorganic all-solid-state electrochromic composite layer;
the first optical adhesive is positioned between the inorganic all-solid-state electrochromic composite layer and the water-oxygen barrier film and used for bonding the inorganic all-solid-state electrochromic composite layer and the water-oxygen barrier film;
the waveguide sheet is positioned at the inner side of the water-oxygen barrier film;
the structural adhesive is annular, is used for bonding the water-oxygen barrier film and the waveguide sheet, and is arranged between the water-oxygen barrier film and the waveguide sheet in a surrounding manner to form a cavity;
the sealant is annular, is arranged between the transparent substrate and the waveguide sheet in a surrounding mode, and forms a sealing space with the transparent substrate and the waveguide sheet.
2. The lens assembly of claim 1, wherein: the outer side of the sealant is in sealing connection with the inner side of the transparent substrate or the peripheral edge of the transparent substrate; the inner side of the sealant is in sealing connection with the outer side of the waveguide sheet, the circumferential edge of the waveguide sheet or the structural adhesive.
3. The lens assembly of claim 1, wherein: the outer side of the transparent substrate is provided with a first anti-reflection layer.
4. The lens assembly of claim 1, wherein: a second anti-reflection layer is arranged on the inner side of the inorganic all-solid-state electrochromic composite layer; the first optical cement is used for bonding the second anti-reflection layer and the water-oxygen barrier film.
5. The lens assembly of claim 1, wherein: and microbeads for limiting the thickness of the structural adhesive are arranged in the structural adhesive.
6. The lens assembly of claim 5, wherein: the diameter of the microbeads is 10-500 microns.
7. The lens assembly of claim 1, wherein: a third anti-reflection layer is arranged on the inner side of the water-oxygen barrier film; the structural adhesive is arranged between the third anti-reflection layer and the waveguide sheet in a surrounding mode, and the cavity is formed.
8. The lens assembly of claim 1, wherein: the optical film comprises a third antireflection layer positioned on the inner side of the water-oxygen barrier film and second optical adhesive positioned between the third antireflection layer and the water-oxygen barrier film; the second optical adhesive is used for bonding the third anti-reflection layer on the inner side of the water-oxygen barrier film; the structural adhesive is arranged between the third anti-reflection layer and the waveguide sheet in a surrounding mode, and the cavity is formed.
9. AR glasses comprising a frame having a mounting opening, and a lens assembly according to any one of claims 1-8; the lens component is embedded in the mounting opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321004147.9U CN219105314U (en) | 2023-04-28 | 2023-04-28 | Lens assembly and AR glasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321004147.9U CN219105314U (en) | 2023-04-28 | 2023-04-28 | Lens assembly and AR glasses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219105314U true CN219105314U (en) | 2023-05-30 |
Family
ID=86458280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321004147.9U Active CN219105314U (en) | 2023-04-28 | 2023-04-28 | Lens assembly and AR glasses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219105314U (en) |
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2023
- 2023-04-28 CN CN202321004147.9U patent/CN219105314U/en active Active
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