CN218497177U - Explosion-proof membrane for lens and lens composite laminated structure - Google Patents
Explosion-proof membrane for lens and lens composite laminated structure Download PDFInfo
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- CN218497177U CN218497177U CN202223027936.2U CN202223027936U CN218497177U CN 218497177 U CN218497177 U CN 218497177U CN 202223027936 U CN202223027936 U CN 202223027936U CN 218497177 U CN218497177 U CN 218497177U
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- 239000012528 membrane Substances 0.000 title claims abstract description 32
- 239000002131 composite material Substances 0.000 title claims description 5
- 239000010410 layer Substances 0.000 claims abstract description 118
- 230000003287 optical effect Effects 0.000 claims abstract description 95
- 238000005452 bending Methods 0.000 claims abstract description 71
- 239000000758 substrate Substances 0.000 claims abstract description 67
- 239000012790 adhesive layer Substances 0.000 claims abstract description 27
- 230000002209 hydrophobic effect Effects 0.000 claims description 14
- 230000001681 protective effect Effects 0.000 claims description 9
- 238000005520 cutting process Methods 0.000 claims description 8
- 239000003292 glue Substances 0.000 abstract description 12
- 239000010408 film Substances 0.000 description 37
- 238000005516 engineering process Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 3
- 210000003128 head Anatomy 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000004417 polycarbonate Substances 0.000 description 3
- 229920000515 polycarbonate Polymers 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 2
- 241000561734 Celosia cristata Species 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 210000001520 comb Anatomy 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 235000009537 plain noodles Nutrition 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000012788 optical film Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
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- Laminated Bodies (AREA)
Abstract
The utility model discloses an explosion-proof membrane for a lens, which comprises an optical substrate layer and an optical adhesive layer, wherein the optical substrate layer comprises an outer surface and an inner surface; the optical adhesive layer is arranged on the inner surface; the outer surface and/or the inner surface are/is provided with bending-resistant texture blocks, the bending-resistant texture blocks extend along the first direction, and the adjacent bending-resistant texture blocks are arranged at intervals. The explosion-proof membrane for the lens is reasonable in structure, when the anti-bending texture blocks arranged on the outer surface and/or the inner surface of the optical substrate layer are matched with an arc-surface adherend for use, the problem that the membrane surface is not flat after the adhesion due to high hardness of the optical substrate is solved, the anti-bending texture blocks are bent, closed and/or stretched and opened and are matched with the arc surface of the adherend in a concave-convex mode, and the smoothness and the adhesion of the explosion-proof membrane are improved; the optical substrate layer is pasted through the glue layer, and the use is convenient.
Description
Technical Field
The utility model belongs to the technical field of the optical film technique of using and specifically relates to an explosion-proof membrane and compound stacked structure of lens for lens are related to.
Background
Virtual reality head-mounted display equipment, referred to as VR head display, is a product which utilizes various technical sets such as simulation technology and computer graphics man-machine interface technology multimedia technology sensing technology network technology, and is a brand-new man-machine interaction means created by means of computers and latest sensor technology. The VR head is mainly provided with two lenses, the surfaces of the VR lenses are plano-convex (aspheric), the concave-convex effect increases the visual angle, enlarges the picture and enhances the three-dimensional effect, namely the edges of the lenses are thin, and the center of the lenses is thick. The lens is made of glass material, so that the risk of damaging eyes by breaking exists, and therefore, an explosion-proof membrane is needed to protect the eyes.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an one of the purpose lies in overcoming the defect that exists among the prior art, provides an rupture membrane for lens, utilizes the crooked closure of resistant texture piece of buckling and/or tensile opening, with the unsmooth cooperation of cambered surface of being pasted the thing, improves the planarization and the laminating nature of rupture membrane.
In order to realize the technical effect, the utility model adopts the technical scheme that: an explosion-proof membrane for a lens comprises an optical substrate layer and an optical adhesive layer, wherein the optical substrate layer comprises an outer surface and an inner surface; the optical adhesive layer is arranged on the inner surface; the outer surface and/or the inner surface are/is provided with bending-resistant texture blocks, the bending-resistant texture blocks extend along a first direction, and the adjacent bending-resistant texture blocks are arranged at intervals.
The preferable technical scheme is that the bending-resistant texture blocks are saw-toothed grooves.
The preferable technical scheme is that the highest point of the protrusions between the adjacent sawtooth-shaped grooves is flush with the outer surface and/or the inner surface of the optical substrate layer.
The bending-resistant texture blocks are arranged in parallel along the vertical direction of the first direction, and cutting guide pieces extending along the first direction are arranged between the bending-resistant texture blocks.
The optical substrate layer is characterized in that a bending-resistant hardened outer layer is arranged on the outer surface of the optical substrate layer.
The preferable technical scheme is that the bending-resistant hardened outer layer is back to one surface of the optical substrate layer and is provided with a hydrophobic layer.
The optical substrate layer and the optical adhesive layer are clamped with a bending-resistant hardening inner layer, and the bending-resistant hardening inner layer is covered on the inner surface of the optical substrate layer.
The optical adhesive layer is provided with a release film on one side back to the optical substrate layer.
The preferable technical scheme is that a protective film is arranged on one surface of the hydrophobic layer, which faces away from the optical substrate layer.
The utility model discloses a two aims at overcome the defect that exists among the prior art, provide a compound laminated structure of lens, explosion-proof membrane for lens including lens and foretell lens, the optics glue film with the play plain noodles of lens is laminated mutually, first direction with the width direction of lens is unanimous, resistant texture piece edge of buckling the side reason setting of lens.
The utility model has the advantages and the beneficial effects that:
the explosion-proof membrane for the lens is reasonable in structure, when the anti-bending texture blocks arranged on the outer surface and/or the inner surface of the optical substrate layer are matched with an arc-surface adherend for use, the problem that the membrane surface is not flat after the adhesion due to high hardness of the optical substrate is solved, the anti-bending texture blocks are bent, closed and/or stretched and opened and are matched with the arc surface of the adherend in a concave-convex mode, and the smoothness and the adhesion of the explosion-proof membrane are improved; the optical substrate layer is pasted through the glue layer, and the use is convenient.
Drawings
FIG. 1 is a schematic structural diagram of an explosion-proof membrane in embodiment 1 of the present invention before use;
fig. 2 is a schematic structural view of an explosion-proof membrane stripping release film and a protective film according to embodiment 1 of the present invention;
fig. 3 is a schematic perspective view of an optical substrate layer according to embodiment 1 of the present invention;
fig. 4 is a top view of the inner surface of the optical substrate layer according to embodiment 1 of the present invention;
FIG. 5 is a schematic structural diagram of an explosion-proof membrane of embodiment 2 of the invention before use;
fig. 6 is a schematic structural view of an explosion-proof membrane stripping release film and a protective film according to embodiment 2 of the present invention;
fig. 7 is a schematic structural view of a lens composite laminated structure according to embodiment 2 of the present invention.
In the figure: 1. an optical substrate layer; 2. an optical adhesive layer; 4. a release film; 5. a protective film; 6. a lens; 10. a bending-resistant texture block; 11. a cutting guide; 100. a bend-resistant texture segment; 31. a bend-hardening resistant outer layer; 32. a bend-resistant hardened inner layer; 33. a hydrophobic layer.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Reference to "inner surface" and "outer surface" in the normal use of the rupture disc for a lens is only for convenience and simplicity of description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.
An explosion-proof film for a lens comprises an optical substrate layer and an optical adhesive layer, wherein the optical substrate layer comprises an outer surface and an inner surface; the optical adhesive layer is arranged on the inner surface; the material of the optical substrate layer is one of Polycarbonate (PC), PET, polyimide (CPI), and polymethyl methacrylate (PMMA). Polycarbonate (PC) is preferred, the optical property such as light transmittance, haze and refractive index, and the physical properties such as hardness, abrasion resistance and firmness are better and excellent, and the application requirements in VR head display equipment are met. The material of optics glue film is OCA glue film. The thickness of the optical substrate layer is 50 to 100 mu m, and the thickness of the optical adhesive layer is 80 to 110 mu m. The inner surface is adjacent to the lens of the VR headset and the outer surface is adjacent to the human eye.
The outer surface and/or the inner surface are/is provided with bending-resistant texture blocks, the bending-resistant texture blocks extend along a first direction, adjacent bending-resistant texture blocks are arranged at intervals, and the bending-resistant texture blocks are sawtooth-shaped grooves. The saw-toothed grooves are fine and precise; the first direction is any direction, and for convenience of processing and production, the first direction is the transverse direction or the longitudinal direction of the optical substrate layer; the texture piece of nai buckling sets up in the surface of optical substrate layer, and when the rupture membrane was pasted the thing with the cambered surface, the crooked closure of cockscomb structure recess, but not extrusion is in the same place, can the butt, and it is big to overcome optical substrate layer hardness, and slight fold appears when the good bending of toughness, and then influences the planarization of rupture membrane. In a similar way, the texture piece of nai buckling sets up in the internal surface of optics substrate layer, and when rupture membrane and cambered surface were pasted the thing laminating, the cockscomb structure recess is crooked to be opened, and it is inseparabler with the cambered surface by the laminating of thing, and optics substrate layer obtains the relaxation when crooked simultaneously, appears slight fold when eliminating the bending. The bending-resistant texture blocks are arranged at intervals, and the planes are ensured by the interval parts so as not to influence the light propagation path of incident light and influence the effect. The bending-resistant texture blocks can be cut according to the edge contour of the attached object, the attaching effect is better, and further the bending-resistant texture blocks are arranged along the side edge of the attached object.
The highest points of the protrusions between the adjacent sawtooth-shaped grooves are flush with the outer surface and/or the inner surface of the optical substrate layer. The coating on the outer surface and the inner surface of the optical substrate layer is ensured to be evenly paved, and the physical properties are consistent.
The bending-resistant texture blocks can be continuous bending-resistant textures along the first direction, and adjacent bending-resistant texture blocks are arranged at intervals. In order to ensure the joint firmness of the bending-resistant texture block and the attached object, the processing is simple and convenient, the processing procedures are reduced, the production efficiency is improved, and the edge of the attached object is convenient to cut, the bending-resistant texture block can be discontinuous bending-resistant textures along the first direction and comprises a plurality of bending-resistant texture sections. The vertical direction of resistant texture piece along the first direction sets up to resistant texture piece of buckling of unit that is parallel, is provided with the cutting guide that extends along the first direction between the resistant texture piece of buckling of unit. The cutting and the clipping are convenient to match with the size and the shape of the pasted object, and the utilization rate of the optical substrate layer is improved.
According to the structure, the bending-hardening-resistant outer layer is arranged on the outer surface of the optical base material layer, so that the flatness of the surface of the optical base material layer is improved, the tensile property of the explosion-proof film is improved, and the explosion-proof film is more attached to the cambered surface of an attached object; on the other hand, the scratch of the optical substrate layer is prevented, and the wear resistance is improved, so that the negative influence on the optical performance is avoided. The zigzag grooves can be filled with the bending-resistant hardening liquid, the tensile strength and the toughness of the bending-resistant hardening layer are excellent, and the practical application is not influenced. And a hydrophobic layer is arranged on the surface of the bending-resistant hardened outer layer back to the optical substrate layer. The contact angle of water is improved, and the water mist is prevented from hanging on the explosion-proof film to influence the vision and definition in normal use. Furthermore, the layer thickness of the bending-resistant hardening outer layer is 0.3 to 0.5 μm, and the layer thickness of the hydrophobic layer is 0.1 to 0.2 μm.
In a preferred embodiment, a bending-resistant hardened inner layer is sandwiched between the optical substrate layer and the optical adhesive layer, and the bending-resistant hardened inner layer covers the inner surface of the optical substrate layer, so as to further improve the bending property of the explosion-proof film. The thickness of the layer of the bending-resistant hardening inner layer is 0.3 to 0.5 mu m.
The one side of optics glue film dorsad optics substrate layer is provided with from the type membrane, keeps apart and protects the optics glue film to and reduce the probability that the optics glue film leads to the adhesion to reduce because of deposition or receive the scraping, and the rolling of being convenient for. When in use, the release film can be directly peeled from the optical adhesive layer. The hydrophobic layer is provided with the protection film in the one side of optics substrate layer dorsad, and the protection film passes through the sticky connection of ya keli on the hydrophobic layer surface, prevents in transportation or production process, wearing and tearing or scratch hydrophobic layer and resistant buckling hardening skin.
The utility model provides a compound laminated structure of lens, includes lens and foretell rupture membrane for lens, and the optical cement layer is laminated with the play plain noodles of lens mutually, and the width direction of first direction and lens is unanimous, and resistant texture piece that buckles sets up along the side edge of lens. In the figure, the direction of the arrow is the light incident surface.
Example 1
As shown in fig. 1 to 4, the explosion-proof film for the lens comprises an optical substrate layer 1 and an optical adhesive layer 2, wherein the optical substrate layer 1 comprises an outer surface and an inner surface, the optical adhesive layer 2 is arranged on the inner surface, and a release film 4 is arranged on one surface of the optical adhesive layer 2, which faces away from the optical substrate layer. The outer surface of the optical substrate layer 1 is provided with a bending-resistant hardened outer layer 31 and a hydrophobic layer 33 which are sequentially laminated, and the surface of the hydrophobic layer 33, which is opposite to the optical substrate layer 1, is provided with a protective film 5. Optics substrate layer 1 is the PC substrate layer, and optics glue film 2 is the OCA glue film. The layer thickness of the optical substrate layer 1 was 100 μm, the layer thickness of the optical adhesive layer 2 was 100 μm, the layer thickness of the bending-hardening resistant outer layer 31 was 0.5 μm, and the layer thickness of the water-repellent layer 33 was 0.1 μm. The protective film 5 is made of phenolic resin (PF) and covers the outer surface of the bending-resistant hardened outer layer 31 through acrylic glue.
The inner surface of the optical substrate layer 1 is provided with bending-resistant texture blocks 10, the bending-resistant texture blocks 10 extend along a first direction, the first direction is transverse to the optical substrate layer 1, the adjacent bending-resistant texture blocks 10 are arranged at intervals, the inner surface between the adjacent bending-resistant texture blocks 10 is a plane, the bending-resistant texture blocks are sawtooth-shaped grooves, the sawtooth-shaped grooves can be obtained by stamping, and the highest point of protrusions between the adjacent sawtooth-shaped grooves is flush with the inner surface of the optical substrate layer 1. The bend-resistant texture blocks 10 are discontinuous and include a plurality of bend-resistant texture segments 100 in the cross direction. The bending-resistant texture blocks 10 are longitudinally arranged into parallel unit bending-resistant texture blocks, cutting guide pieces 11 extending along the transverse direction are arranged between the unit bending-resistant texture blocks, and the cutting guide pieces 11 are cutting lines. The optical glue solution can fill the sawtooth-shaped groove, and the practical application is not influenced; the optical adhesive layer 2 may be formed by coating the release film 4 and then bonded to the inner surface of the optical substrate layer 1.
The lens composite laminated structure comprises a lens 6 and the explosion-proof film for the lens, the release film 4 attached to the optical adhesive layer 2 is peeled off and attached to the light-emitting surface of the lens 6, and the protective film 5 is torn off in use.
Example 2
As shown in fig. 5 to 7, in example 2, based on example 1, the difference is that the explosion-proof film for a lens includes an optical substrate layer 1, the optical substrate layer 1 includes an outer surface and an inner surface, a bending-resistant hardened inner layer 32 and an optical adhesive layer 2 which are sequentially stacked are disposed on the inner surface of the optical substrate layer 1, and a release film 4 is disposed on a surface of the optical adhesive layer 2 opposite to the optical substrate layer 1. The outer surface of the optical substrate layer 1 is provided with a bending-resistant hardened outer layer 31 and a hydrophobic layer 33 which are sequentially laminated, and the surface of the hydrophobic layer 33, which is opposite to the optical substrate layer 1, is provided with a protective film 5. The layer thickness of the bend-hardening resistant inner layer 32 was 0.4 μm, the layer thickness of the bend-hardening resistant outer layer 31 was 0.5 μm, and the layer thicknesses of the other layers were all unchanged.
Mechanical and optical property testing:
(1) Stretching ratio: according to standard GB13022-91;
(2) Light transmittance: according to standard GB/T2410-2008;
(3) Haze: according to standard GB/T2410-2008;
(4) Bending resistance: bending one surface of the optical adhesive layer into an inner bending; otherwise, the bending is outward.
Through tests, the tensile rates of the explosion-proof film samples for the lens in the embodiment 1 and the embodiment 2 are both larger than 100%; the transmittance reaches more than 90 percent; the haze is below 1.0; the optical substrate and the optical adhesive layer of the embodiment 1 and the embodiment 2 are bent at the bending angle of 2 degrees and are bent for 1 ten thousand times, and no crease is seen, and the optical substrate and the optical adhesive layer are bent at the bending angle of 2 degrees and are bent for 1 ten thousand times, and no crease is seen; the explosion-proof film samples for lens of examples 1 and 2 were bent at a bending angle of 5 ° in the inside and not at a fold for 1 ten thousand, and at a bending angle of 5 ° in the outside and not at a fold for 1 ten thousand.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and embellishments can be made without departing from the technical principle of the present invention, and these improvements and embellishments should also be regarded as the protection scope of the present invention.
Claims (10)
1. An explosion-proof membrane for a lens is characterized by comprising
An optical substrate layer comprising an outer surface and an inner surface;
the optical adhesive layer is arranged on the inner surface;
the outer surface and/or the inner surface are/is provided with bending-resistant texture blocks, the bending-resistant texture blocks extend along a first direction, and the adjacent bending-resistant texture blocks are arranged at intervals.
2. The rupture disk for lens according to claim 1, wherein the bending-resistant texture block is a saw-tooth groove.
3. The explosion-proof membrane for lens according to claim 2, wherein the highest point of the protrusions between the adjacent sawtooth-shaped grooves is flush with the outer surface and/or the inner surface of the optical substrate layer.
4. The implosion proof membrane for lens of claim 1 or 2, wherein the bending-resistant grain blocks are arranged as unit bending-resistant grain blocks juxtaposed in a direction perpendicular to the first direction, and cutting guides extending in the first direction are provided between the unit bending-resistant grain blocks.
5. The implosion proof membrane for lenses according to claim 1, wherein an outer surface of said optical substrate layer is provided with a bending-hardening resistant outer layer.
6. The rupture disk for lens according to claim 5, wherein a hydrophobic layer is provided on the side of the bending-resistant hardened outer layer facing away from the optical substrate layer.
7. The implosion proof membrane for lens of claim 1 or 5, wherein a bending-hardening resistant inner layer is interposed between said optical substrate layer and said optical adhesive layer, and said bending-hardening resistant inner layer is provided on an inner surface of said optical substrate layer.
8. The rupture disk for lens according to claim 7, wherein a release film is disposed on the surface of the optical adhesive layer opposite to the optical substrate layer.
9. The explosion-proof membrane for lens according to claim 6, wherein the hydrophobic layer is provided with a protective membrane on a surface facing away from the optical substrate layer.
10. A lens composite laminated structure is characterized by comprising a lens and the explosion-proof membrane for the lens as claimed in any one of claims 1 to 9, wherein the optical adhesive layer is attached to a light-emitting surface of the lens, the first direction is consistent with the width direction of the lens, and the bending-resistant texture block is arranged along the side edge of the lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223027936.2U CN218497177U (en) | 2022-11-15 | 2022-11-15 | Explosion-proof membrane for lens and lens composite laminated structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223027936.2U CN218497177U (en) | 2022-11-15 | 2022-11-15 | Explosion-proof membrane for lens and lens composite laminated structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218497177U true CN218497177U (en) | 2023-02-17 |
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ID=85197810
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223027936.2U Active CN218497177U (en) | 2022-11-15 | 2022-11-15 | Explosion-proof membrane for lens and lens composite laminated structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218497177U (en) |
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2022
- 2022-11-15 CN CN202223027936.2U patent/CN218497177U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A type of explosion-proof film and lens composite laminated structure for lenses Effective date of registration: 20231012 Granted publication date: 20230217 Pledgee: Yunongshang Financial Leasing Co.,Ltd. Pledgor: JIANGYIN TONGLI OPTOELECTRONIC TECHNOLOGY Co.,Ltd. Registration number: Y2023980060795 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |