CN115453758A - AR (augmented reality) lens, dispensing, laminating and edge sealing method of AR lens and AR glasses - Google Patents
AR (augmented reality) lens, dispensing, laminating and edge sealing method of AR lens and AR glasses Download PDFInfo
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- CN115453758A CN115453758A CN202211145651.0A CN202211145651A CN115453758A CN 115453758 A CN115453758 A CN 115453758A CN 202211145651 A CN202211145651 A CN 202211145651A CN 115453758 A CN115453758 A CN 115453758A
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- 239000011521 glass Substances 0.000 title claims abstract description 166
- 238000007789 sealing Methods 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 41
- 238000010030 laminating Methods 0.000 title claims abstract description 23
- 230000003190 augmentative effect Effects 0.000 title description 3
- 239000003292 glue Substances 0.000 claims abstract description 166
- 239000000758 substrate Substances 0.000 claims abstract description 154
- 239000000853 adhesive Substances 0.000 claims abstract description 45
- 230000001070 adhesive effect Effects 0.000 claims abstract description 45
- 238000003384 imaging method Methods 0.000 claims abstract description 10
- 239000012939 laminating adhesive Substances 0.000 claims abstract description 9
- 239000002245 particle Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 239000000565 sealant Substances 0.000 claims 2
- 239000011324 bead Substances 0.000 claims 1
- 239000012945 sealing adhesive Substances 0.000 abstract description 10
- 238000009792 diffusion process Methods 0.000 abstract description 7
- 230000003287 optical effect Effects 0.000 description 47
- 238000012015 optical character recognition Methods 0.000 description 34
- 230000000052 comparative effect Effects 0.000 description 21
- 239000000047 product Substances 0.000 description 18
- 239000010410 layer Substances 0.000 description 17
- 239000004568 cement Substances 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000003475 lamination Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 239000012790 adhesive layer Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 229910052594 sapphire Inorganic materials 0.000 description 5
- 239000010980 sapphire Substances 0.000 description 5
- 230000035515 penetration Effects 0.000 description 4
- 239000012466 permeate Substances 0.000 description 4
- 239000011325 microbead Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000005340 laminated glass Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/26—Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/021—Mountings, adjusting means, or light-tight connections, for optical elements for lenses for more than one lens
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/025—Mountings, adjusting means, or light-tight connections, for optical elements for lenses using glue
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Joining Of Glass To Other Materials (AREA)
Abstract
The invention provides an AR lens, a dispensing, laminating and edge sealing method of the AR lens and AR glasses, wherein the AR lens comprises at least two glass substrates, and a display structure for imaging is arranged on at least one glass substrate; glass substrates are mutually overlapped to form a substrate, overlapping glue lines are arranged between every two adjacent glass substrates, openings are formed at the head end and the tail end of each overlapping glue line, and the head end and the tail end of each overlapping glue line are mutually overlapped in the opening area; the outer edge of the lens base body is coated with an edge sealing glue layer. According to the invention, the head end and the tail end of the laminating adhesive line form the openings, and the head end and the tail end of the opening area are mutually overlapped, so that air in the dam enclosing area can be exhausted from the openings during laminating, thus the glass substrates can be ensured to have better parallelism after laminating, the problem of deformation of the laminating adhesive line caused by air pressure can be avoided, the structure can also control the permeation trend and the diffusion range of edge sealing adhesive during edge sealing, and thus, the overflow adhesive can be prevented from entering the light conduction area.
Description
Technical Field
The invention relates to an AR (augmented reality) lens, a dispensing, superposing and edge sealing method of the AR lens and AR glasses, and belongs to the technical field of AR lens processing and manufacturing.
Background
In the 5G era of Internet + and big data, the fields of wearable equipment, intelligent home, education and teaching and the like are rapidly developed. Smart AR glasses are therefore welcomed. In the glasses manufacture craft, the operation such as some glue + coincide + banding is a key technology in the AR glasses manufacture craft, wherein, prior art often directly adopts the processing mode in the display manufacturing field, promptly: the superimposed glue line 3 is applied to the upper glass substrate 1 in the form of a dam, and in order to smoothly discharge air between the multiple substrates (such as the upper glass substrate 1 and the lower glass substrate 2) during the bonding process, the dam is usually provided with an opening 4 as an exhaust port, as shown in fig. 1a and 1b, but when the edge sealing process is performed on the AR glasses, glue used for edge sealing permeates into the lenses through the opening, thereby affecting the display effect of the manufactured AR glasses lenses.
Therefore, it is an urgent technical problem in the art to provide a novel AR lens structure, a dispensing, folding and edge sealing method for the AR lens, and AR glasses.
Disclosure of Invention
To solve the above disadvantages and shortcomings, it is an object of the present invention to provide an AR lens.
The invention also aims to provide a dispensing, laminating and edge sealing method for the AR lens.
It is also an object of the present invention to provide AR glasses comprising the above mentioned AR lenses.
In order to achieve the above objects, in one aspect, the present invention provides an AR lens, wherein the AR lens includes at least two glass substrates, and a display structure for imaging is disposed on at least one of the glass substrates;
the glass substrates are mutually overlapped to form a substrate, overlapping glue lines are arranged between every two adjacent glass substrates, openings are formed at the head end and the tail end of each overlapping glue line, and the head end and the tail end of each overlapping glue line are mutually overlapped in the opening area;
the outer edge of the lens base body is coated with an edge sealing glue layer.
As a specific embodiment of the above AR lens of the present invention, the display structure for imaging includes a grating.
As a specific embodiment of the above AR lens of the present invention, the overlapped glue line is disposed at the edge between two adjacent glass substrates in the form of a dam.
In a specific embodiment of the above AR lens of the present invention, the width of the laminated glue line is 0.5mm to 2mm, and the height thereof is 0.03mm to 0.15mm.
As a specific embodiment of the above AR lens of the present invention, the laminated glue line includes an OCA optical glue line, an OCR optical glue line or an OCR optical glue line added with micro-bead particles.
As a specific embodiment of the AR lens according to the above, wherein the edge sealing adhesive layer includes a black adhesive layer.
As a specific embodiment of the above AR lens of the present invention, when the number of the glass substrates is three or more, the positions of the openings between two adjacent glass substrates are the same or different.
As a specific embodiment of the above AR lens of the present invention, when the number of the glass substrates is three or more, the arrangement manner of the head and the tail of the overlapping glue line between two adjacent glass substrates, that is, the overlapping arrangement manner of the openings, is the same or different.
As a specific embodiment of the above AR lens of the present invention, the head and the tail of the overlapped glue line are overlapped in parallel or overlapped in non-parallel.
As a specific embodiment of the above AR lens of the present invention, the head and tail ends of the laminated glue line may be two parallel straight lines or two parallel curves, or one of the two straight lines is a curve, and the other straight line is a straight line.
As a specific embodiment of the above AR lens of the present invention, the head end of the laminated glue line may be overlapped on the tail end, or the tail end of the laminated glue line may be overlapped on the head end.
As a specific embodiment of the above AR lens of the present invention, when the head and the tail of the overlapped glue line are overlapped in parallel, the width between the head and the tail is 1/2 of the width of the overlapped glue line.
As a specific embodiment of the above AR lens of the present invention, when the head and the tail of the overlapped glue line are disposed in a non-parallel overlapping manner, the angle formed by the head and the tail is in the range of 10 ° to 20 °.
As a specific embodiment of the above AR lens of the present invention, wherein the length of the overlapping portion between the head and the tail is in a range of 3mm to 10mm.
In the present invention, the length range of the overlapping portions at the head and the tail ends is closely related to the characteristics of the edge sealing glue used during edge sealing, such as viscosity and fluidity, and generally, the stronger the fluidity of the edge sealing glue, the longer the length (L, as shown in fig. 2 e) of the overlapping portions at the head and the tail ends.
In addition, when designing the track of the laminating adhesive line, it is necessary to ensure that the laminating adhesive line cannot shield the light conduction region, as shown in fig. 2e, that is, the laminating adhesive line shields the light conduction region, and this need to be avoided. Therefore, when designing the AR lens, it is necessary to adjust the position, shape, and the like of the opening of the laminated adhesive tape according to the size, structure, and the like of the AR lens.
On the other hand, the invention also provides a dispensing, superposing and edge sealing method for the AR lens, wherein the method comprises the following steps:
(1) Dispensing: dispensing on the corresponding glass substrates according to the number of the glass substrates to form dispensing lines, forming openings at the head and tail ends of the dispensing lines, and overlapping the head and tail ends in the opening areas;
(2) And (3) superposition: after dispensing is finished, overlapping the glass substrates to form a substrate of the lens;
(3) Edge sealing: and coating edge sealing glue on the outer edge of the lens substrate to finish the dispensing, superposing and edge sealing of the AR lens to obtain the AR lens.
As a specific embodiment of the above method of the present invention, wherein dispensing is performed on the corresponding glass substrates according to the number of the glass substrates, the method comprises:
if the glass substrates are two, dispensing is carried out on the lower glass substrate; if the number of the glass substrates is three, dispensing needs to be carried out on the lower glass substrate and the middle glass substrate respectively, and when the number of the glass substrates is more than three, the process is repeated.
As an embodiment of the above method of the present invention, when the laminated Adhesive line is an OCA (optical Clear Adhesive) Adhesive line, since the OCA (optical Clear Adhesive) Adhesive is in a solid state and generally exists in the form of a sheet, the OCA optical Adhesive is sandwiched by the light and heavy release films, and during the attaching (dispensing), the light and heavy release films need to be torn off to adhere the OCA optical Adhesive to the glass substrate and form the Adhesive dispensing line according to the shape of the glass substrate.
As a specific embodiment of the above method of the present invention, when the laminated glue line is an OCR (Optical Clear Adhesive) glue line, since the OCR (Liquid Optical Clear Adhesive) glue exists in a Liquid state and is usually packaged by a glue line, the OCR glue is applied to the glass substrate by a glue dispensing valve according to a set path to form the glue line.
As a specific implementation of the above method of the present invention, when the laminated glue line is an OCR optical glue line added with micro bead particles (Spacerball), the glue dispensing process is the same as the glue dispensing process of the OCR optical glue.
As a specific embodiment of the above method of the present invention, a UV lamp is required to be used during lamination to cure the lamination glue (i.e. the glue dispensing line), i.e. the OCA optical glue, the OCR optical glue or the OCR optical glue added with the micro-bead particles, and the glue dispensing line is the lamination glue line after being cured.
In yet another aspect, the present invention also provides AR glasses, wherein the AR glasses comprise the AR lens described above.
According to the invention, when the glass substrates are laminated, air pressure can be generated in the dam enclosing area formed by laminating the glue lines, so that openings are formed at the head end and the tail end of the laminating glue lines, air in the dam enclosing area can be discharged from the openings when the glass substrates are laminated, better parallelism of the glass substrates can be ensured after lamination, the problem of deformation of the laminating glue lines caused by air pressure can be avoided, and the design requirements of more stability and better laminating parallelism can be further met.
In addition, because the glue seeps into the lens from the openings formed at the head and tail ends of the overlapped glue line when the edge is sealed, in the AR lens provided by the invention, the head and tail ends of the overlapped glue line are overlapped with each other at the opening area, the structure can prevent the edge sealing glue used during the subsequent edge sealing from entering the lens substrate to the greatest extent, even if the edge sealing glue enters the lens substrate, the structure can control the seepage trend and the diffusion range of the edge sealing glue coated during the edge sealing, and thus the glue overflow (namely the edge sealing glue) can be prevented from entering the light conduction area; in addition, the opening that the head and the tail both ends that the line was glued in the shutoff coincide completely is glued to the edge sealing glue to can prevent entering lens such as steam, and then can promote user experience, if can wear in rainy day, perhaps wear in high humidity area, perhaps wear or can wear when wading the motion under the environment of cold and hot environment dewfall winter.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1a is a schematic view (top view) illustrating an exhaust opening formed in a dispensing area in the form of a dam when an AR lens is manufactured in the prior art.
Fig. 1b is a schematic diagram (front view) illustrating that air between a plurality of substrates cannot be exhausted and exhausted through an exhaust port during bonding when an AR lens is manufactured according to the prior art.
Fig. 2a is a schematic view of openings formed at the head and tail ends of the laminated glue line in the AR lens provided in embodiment 1 of the present invention.
Fig. 2b is a schematic view of openings formed at the head end and the tail end of the laminated glue line in the AR lens provided in embodiment 2 of the present invention.
Fig. 2c is a schematic diagram of the AR lens provided in comparative example 1, in which the laminated glue line is not provided with an opening.
Fig. 2d is a schematic diagram of the AR lens provided in comparative example 1, in which the laminated adhesive line has a common opening, that is, the head and the tail of the laminated adhesive line do not overlap each other in the opening region.
Fig. 2e is a schematic diagram of the situation that the light conduction region is shielded by the laminating adhesive line in the comparative example.
Fig. 3a is a schematic diagram of a laminated adhesive line (OCR optical adhesive line) perforated by an air pressure generated by exhausting air too late when laminating a glass substrate in comparative example 1, which is photographed under a 50-fold microscope.
Fig. 3b is a schematic diagram of deformation of an optical clear adhesive (OCR) line when the glass substrate is laminated and laminated, which is obtained by photographing under a 50 × lens using a microscope, due to the fact that the laminated adhesive line is not exhausted soon to generate air pressure in comparative example 1.
Fig. 3c is a schematic view of the overlapped glue line (OCR optical glue line) being undeformed when the head and the tail of the overlapped glue line form openings and the head and the tail of the opening area are overlapped with each other in embodiment 2 of the present invention, wherein the head and the tail of the overlapped glue line are arranged in a non-parallel overlapping manner, that is, the head and the tail of the overlapped glue line form a certain angle, and the head and the tail of the overlapped glue line are both straight lines, and the overlapped glue line is obtained by shooting under a 50-fold microscope.
Fig. 4a is a schematic view of the embodiment 2 of the present invention, in which the head and the tail of the overlapping glue line in the opening region are overlapped with each other, so that the penetration direction and the diffusion range of the edge sealing glue applied during edge sealing can be controlled, and the edge sealing glue is obtained by shooting under a microscope with a 50-fold lens.
Fig. 4b is a schematic diagram of comparative example 2, in which although openings are formed at the head and tail ends of the laminating adhesive line, the head and tail ends of the opening area do not overlap with each other, the lens penetrated by the overflowed adhesive (i.e., the edge sealing adhesive) in this structure is non-directional, and thus the penetration direction and the diffusion range cannot be controlled, which is obtained by shooting under a 50-fold microscope.
The main reference numbers illustrate:
1. an upper glass substrate;
2. a lower glass substrate;
3. overlapping the glue lines;
4. an opening;
5. a light-conducting region.
Detailed Description
In order to clearly understand the technical features, objects and advantages of the present invention, the following detailed description of the technical solutions of the present invention will be made with reference to the following specific examples, which should not be construed as limiting the implementable scope of the present invention.
It should be noted that the term "comprises/comprising" and any variations thereof in the description and claims of this invention and the above-described drawings is intended to cover non-exclusive inclusions, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the present invention, the terms "upper", "lower", "inner", "outer", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the invention and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
The "ranges" disclosed herein are given as lower and upper limits. There may be one or more lower limits, and one or more upper limits, respectively. The given range is defined by the selection of a lower limit and an upper limit. The selected lower and upper limits define the boundaries of the particular range. All ranges defined in this manner are combinable, i.e., any lower limit can be combined with any upper limit to form a range. For example, ranges of 60-120 and 80-110 are listed for particular parameters, with the understanding that ranges of 60-110 and 80-120 are also contemplated. Further, if the minimum range values listed are 1 and 2 and the maximum range values listed are 3,4, and 5, then the following ranges are all contemplated: 1-3, 1-4, 1-5, 2-3, 2-4 and 2-5.
In the present invention, unless otherwise stated, the numerical range "a-b" represents a shorthand representation of any combination of real numbers between a and b, where a and b are both real numbers. For example, a numerical range of "0 to 5" indicates that all real numbers between "0 to 5" have been listed throughout this disclosure, and "0 to 5" is only a shorthand representation of the combination of these numbers.
In the present invention, all embodiments and preferred embodiments mentioned in the present invention can be combined with each other to form a new technical solution, unless otherwise specified.
In the present invention, all the technical features mentioned in the present invention and preferred features may be combined with each other to form a new technical solution, if not specifically stated.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the attached tables and embodiments. The following described embodiments are some, but not all embodiments of the present invention, and are merely illustrative of the present invention and should not be construed as limiting the scope of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The examples, in which specific conditions are not specified, were carried out according to conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
Example 1
The embodiment provides an AR lens, wherein the AR lens includes two glass substrates, which are a lower glass substrate 2 and an upper glass substrate 1, respectively, and at least one of the glass substrates is provided with a display structure for imaging, such as a grating;
the lower glass substrate 2 and the upper glass substrate 1 are mutually overlapped to form a substrate, an overlapping glue line 3 is arranged between the lower glass substrate 2 and the upper glass substrate 1 in a form of a dam, openings 4 are formed at the head end and the tail end of the overlapping glue line 3, and the head end and the tail end of the opening area are mutually overlapped, wherein the head end and the tail end of the overlapping glue line are arranged in a parallel overlapping mode, and the head end and the tail end are both curved lines, as shown in fig. 2 a;
the outer edge of the lens base body is coated with an edge sealing glue layer;
the width between the head end and the tail end is 1/2 of the width of the laminated glue line, the width between the head end and the tail end is more than or equal to 0.5mm in the embodiment, and the length of the overlapped part of the head end and the tail end is 3mm-10mm;
the lamination glue line is an OCR optical glue line;
wherein the edge sealing adhesive layer is a black adhesive layer;
the glass substrate used in the embodiment comprises a cover plate and a waveguide sheet, wherein the cover plate is made of sapphire or coated glass, the waveguide sheet is made of high-folding glass with optical structure glue on the surface, and both the coated glass and the high-folding glass with the optical structure glue on the surface are conventional products and can be obtained commercially.
The embodiment also provides a dispensing, laminating and edge sealing method of the AR lens, namely a manufacturing method of the AR lens, which comprises the following steps:
(1) Dispensing: according to the shape of the superimposed adhesive line shown in fig. 2a, OCR optical adhesive (a conventional product, such as available from 3M or DELO) is coated on the lower glass substrate by controlling the motion trajectory of the dispensing valve and the parameters of the dispensing valve to form a dispensing line, and it is required to ensure that the adhesive width and the adhesive height of the dispensing line have better uniformity or consistency, if the width and the height of the dispensed dispensing line are not consistent well, the width of the superimposed adhesive line formed after superimposing is not consistent well, which may cause the adhesive line at the opening to be closed and exhaust the dam area;
(2) And (3) laminating: laminating the upper glass substrate and the lower glass substrate, namely, adhering the upper glass substrate and the lower glass substrate together through OCR (optical character recognition) optical cement to obtain a lens base body, wherein a UV (ultraviolet) lamp is required to be used in the process so as to solidify the OCR optical cement, and the upper glass substrate and the lower glass substrate are required to be ensured to have better parallelism;
(3) Edge sealing: the outer edge of the lens base body is blackened, namely, the outer edge of the lens base body is coated with a black glue (a conventional product, such as a product available from 3M or DELO) layer, the process requires that the black glue has good light-shielding property for the edge of the lens base body, meanwhile, the black glue cannot permeate into the lens base body, and the black glue is used for absorbing light emitted into the edge of the lens, so that the problem of reducing the display effect caused by the fact that the light is reflected back to the inside of the lens by the edge of the lens can be avoided.
Example 2
The embodiment provides an AR lens, wherein the AR lens includes two glass substrates, which are a lower glass substrate 2 and an upper glass substrate 1, respectively, and at least one of the glass substrates is provided with a display structure for imaging, such as a grating;
the lower glass substrate 2 and the upper glass substrate 1 are mutually overlapped to form a substrate, an overlapping glue line 3 is arranged between the lower glass substrate 2 and the upper glass substrate 1 in a form of a dam, openings 4 are formed at the head end and the tail end of the overlapping glue line 3, and the head end and the tail end of the opening area are mutually overlapped, wherein the head end and the tail end of the overlapping glue line are in non-parallel overlapping arrangement, namely the head end and the tail end are in a certain angle, and the head end and the tail end are both straight lines, as shown in fig. 2 b;
the outer edge of the lens base body is coated with an edge sealing adhesive layer;
wherein the angle value formed by the head end and the tail end is 10-20 degrees, and the length of the overlapped part of the head end and the tail end is 3-10 mm;
wherein the laminated glue line is an OCR optical glue line;
wherein the edge sealing adhesive layer is a black adhesive layer;
the glass substrate used in the embodiment comprises a cover plate and a waveguide sheet, wherein the cover plate is made of sapphire or coated glass, the waveguide sheet is made of high-folding glass with optical structure glue on the surface, and both the coated glass and the high-folding glass with the optical structure glue on the surface are conventional products and can be obtained commercially.
The embodiment also provides a dispensing, laminating and edge sealing method of the AR lens, namely a manufacturing method of the AR lens, which includes the following steps:
(1) Dispensing: according to the shape of the superimposed adhesive line shown in fig. 2b, OCR optical adhesive (a conventional product, such as available from 3M or DELO) is coated on the lower glass substrate by controlling the motion trajectory of the dispensing valve and the parameters of the dispensing valve to form a dispensing line, and it is required to ensure that the adhesive width and the adhesive height of the dispensing line have better uniformity or consistency, if the width and the height of the dispensed dispensing line are not consistent well, the width of the superimposed adhesive line formed after superimposing is not consistent well, which may cause the adhesive line at the opening to be closed and exhaust the dam area;
(2) And (3) superposition: laminating the upper glass substrate and the lower glass substrate, namely bonding the upper glass substrate and the lower glass substrate together through OCR optical cement to obtain a lens base body, wherein a UV lamp is needed in the process to cure the OCR optical cement and ensure that the upper glass substrate and the lower glass substrate have better parallelism;
(3) Edge sealing: the outer edge of the lens base body is blackened, namely, the outer edge of the lens base body is coated with a black glue (a conventional product, such as a product available from 3M or DELO) layer, the process requires that the black glue has good light-shielding property for the edge of the lens base body, meanwhile, the black glue cannot permeate into the lens base body, and the black glue is used for absorbing light emitted into the edge of the lens, so that the problem of reducing the display effect caused by the fact that the light is reflected back to the inside of the lens by the edge of the lens can be avoided.
Comparative example 1
The present comparative example provides an AR lens, wherein the AR lens includes two glass substrates, a lower glass substrate 2 and an upper glass substrate 1, respectively, on at least one of which a display structure for imaging, such as a grating, is provided;
the lower glass substrate 2 and the upper glass substrate 1 are mutually overlapped to form a substrate, a closed overlapped glue line 3 is arranged between the lower glass substrate 2 and the upper glass substrate 1 in a form of a box dam, namely the overlapped glue line 3 is not provided with an opening 4, as shown in fig. 2 c;
the outer edge of the lens base body is coated with an edge sealing glue layer;
the lamination glue line is an OCR optical glue line;
wherein the edge sealing adhesive layer is a black adhesive layer;
the glass substrate used in the comparative example comprises a cover plate and a waveguide sheet, wherein the cover plate is made of sapphire or coated glass, the waveguide sheet is made of high-folding glass with optical structure glue on the surface, and both the coated glass and the high-folding glass with the optical structure glue on the surface are conventional products and can be obtained commercially.
The present comparative example also provides a dispensing, superposing and edge sealing method for the AR lens, that is, a manufacturing method for the AR lens, which includes:
(1) Dispensing: according to the shape of the laminated glue line shown in fig. 2c, OCR optical glue (a conventional product, such as available from 3M or DELO) is coated on the lower glass substrate by controlling the motion trajectory of the dispensing valve and the parameters of the dispensing valve to form a dispensing line, and it is required to ensure that the width and height of the dispensing line have better uniformity or consistency;
(2) And (3) superposition: laminating the upper glass substrate and the lower glass substrate, namely bonding the upper glass substrate and the lower glass substrate together by OCR optical cement to obtain a lens base body, wherein a UV lamp is required to be used in the process so as to cure the OCR optical cement;
(3) Edge sealing: the outer edge of the lens base body is blackened, that is, the outer edge of the lens base body is coated with a layer of black glue (a conventional product, such as 3M or DELO), and this process requires that the black glue has a good light-shielding property for the edge of the lens base body.
Comparative example 2
The present comparative example provides an AR lens, wherein the AR lens includes two glass substrates, a lower glass substrate 2 and an upper glass substrate 1, respectively, and a display structure for imaging, such as a grating, is provided on at least one of the glass substrates;
the lower glass substrate 2 and the upper glass substrate 1 are mutually overlapped to form a lens substrate, an overlapping glue line 3 is arranged between the lower glass substrate 2 and the upper glass substrate 1 in a form of a dam, openings 4 are formed at the head end and the tail end of the overlapping glue line 3, but the head end and the tail end of the opening area are not mutually overlapped, as shown in fig. 2 d;
the outer edge of the lens base body is coated with an edge sealing glue layer;
the lamination glue line is an OCR optical glue line;
wherein the edge sealing adhesive layer is a black adhesive layer;
the glass substrate used in the comparative example comprises a cover plate and a waveguide sheet, wherein the cover plate is made of sapphire or coated glass, the waveguide sheet is made of high-folding glass with optical structure glue on the surface, and both the coated glass and the high-folding glass with the optical structure glue on the surface are conventional products and can be obtained commercially.
The present comparative example further provides a method for dispensing, laminating, and edge-sealing an AR lens, that is, a method for manufacturing an AR lens, comprising:
(1) Dispensing: according to the shape of the laminated glue line shown in fig. 2d, OCR optical glue (a conventional product, such as one available from 3M or DELO) is coated on the lower glass substrate by controlling the motion trajectory of the dispensing valve and the parameters of the dispensing valve to form a dispensing line, and it is required to ensure that the width and height of the dispensing line have good uniformity or consistency;
(2) And (3) superposition: laminating the upper glass substrate and the lower glass substrate, namely bonding the upper glass substrate and the lower glass substrate together through OCR optical cement to obtain a lens base body, wherein a UV lamp is needed in the process to cure the OCR optical cement and ensure that the upper glass substrate and the lower glass substrate have better parallelism;
(3) Edge sealing: the outer edge of the lens substrate is blackened, that is, the outer edge of the lens substrate is coated with a black glue (conventional products, such as those available from 3M or DELO) layer, and this process requires good light-shielding property of the black glue to the edge of the lens substrate, and the black glue is used to absorb light emitted to the edge of the lens, thereby avoiding the problem of reducing the display effect caused by the reflection of light from the edge of the lens back into the lens.
Comparative example 3
The present comparative example provides an AR lens, wherein the AR lens includes two glass substrates, a lower glass substrate 2 and an upper glass substrate 1, respectively, on at least one of which a display structure for imaging, such as a grating, is provided;
the lower glass substrate 2 and the upper glass substrate 1 are mutually overlapped to form a lens substrate, the overlapped glue lines 3 are arranged between the lower glass substrate 2 and the upper glass substrate 1 in a form of a dam, openings 4 are formed at the head and tail ends of the overlapped glue lines 3, and the head and tail ends of the opening areas are mutually overlapped, wherein the head and tail ends of the overlapped glue lines are in non-parallel overlapped arrangement, namely the head and tail ends are in a certain angle, and the head and tail ends are straight lines, as shown in fig. 2e, as can be seen from fig. 2e, the overlapped glue lines shield a light conduction area, and the light conduction area shielded by the overlapped glue lines can reduce the coupled light efficiency and the uniformity of the coupled whole light efficiency;
the outer edge of the lens base body is coated with an edge sealing glue layer;
wherein the angle value formed by the head end and the tail end is 10-20 degrees, and the length of the overlapped part of the head end and the tail end is 3-10 mm;
wherein the laminated glue line is an OCR optical glue line;
wherein the edge sealing adhesive layer is a black adhesive layer;
the glass substrate used in the comparative example comprises a cover plate and a waveguide sheet, wherein the cover plate is made of sapphire or coated glass, the waveguide sheet is made of high-folding glass with optical structure glue on the surface, and both the coated glass and the high-folding glass with the optical structure glue on the surface are conventional products and can be obtained commercially.
The present comparative example also provides a dispensing, superposing and edge sealing method for the AR lens, that is, a manufacturing method for the AR lens, which includes:
(1) Dispensing: according to the shape of the superimposed adhesive line shown in fig. 2e, OCR optical adhesive (a conventional product, such as available from 3M or DELO) is coated on the lower glass substrate by controlling the motion trajectory of the dispensing valve and the parameters of the dispensing valve to form a dispensing line, and it is required to ensure that the adhesive width and the adhesive height of the dispensing line have better uniformity or consistency, if the width and the height of the dispensed dispensing line are not consistent well, the width of the superimposed adhesive line formed after superimposing is not consistent well, which may cause the adhesive line at the opening to be closed and exhaust the dam area;
(2) And (3) superposition: laminating the upper glass substrate and the lower glass substrate, namely, adhering the upper glass substrate and the lower glass substrate together through OCR (optical character recognition) optical cement to obtain a lens base body, wherein a UV (ultraviolet) lamp is required to be used in the process so as to solidify the OCR optical cement, and the upper glass substrate and the lower glass substrate are required to be ensured to have better parallelism;
(3) Edge sealing: the outer edge of the lens base body is blackened, that is, the outer edge of the lens base body is coated with a layer of black glue (a conventional product, such as 3M or DELO), and this process requires that the black glue has good light-shielding property for the edge of the lens base body, and meanwhile, the black glue cannot permeate into the lens base body, so that the black glue is used to absorb light emitted into the edge of the lens, thereby avoiding the problem of reducing the display effect caused by the light reflected back into the lens by the edge of the lens.
Comparing the AR lenses obtained in example 2 and comparative example 1, it can be seen that, compared to the AR lens obtained in example 2, the laminated adhesive line in comparative example 1 has no opening, and when the glass substrates are laminated, the laminated adhesive line cannot exhaust air to generate air pressure, which results in poor parallelism of the laminated glass substrates and deformation of the laminated adhesive line, as shown in fig. 3a and 3 b; in embodiment 2 of the present invention, openings are formed at the head and tail ends of the laminated glue line, so that air in the dam region can be discharged from the openings when laminating the glass substrates, thereby ensuring better parallelism of the glass substrates after laminating, and avoiding the problem of deformation of the laminated glue line due to air pressure, as shown in fig. 3c, so as to meet the design requirements of more stability and better lamination parallelism.
In addition, as can be seen from the comparison between the AR lenses obtained in the embodiment 2 and the comparison example 2, in the embodiment 2 of the present invention, the head and the tail of the overlapping glue line in the opening region are overlapped with each other, and this structure can control the penetration direction and the diffusion range of the edge sealing glue applied during edge sealing, so as to prevent the glue overflow (i.e., the edge sealing glue) from entering the light conduction region 5, as shown in fig. 4 a; in addition, the edge sealing glue can completely block the openings formed at the head end and the tail end of the superposed glue line, so that water vapor and the like can be prevented from entering the lens, and further the user experience can be improved, for example, the lens can be worn in rainy days, or in high-humidity areas, or in cold and hot environment dewed environments in winter, or can be worn in wading sports, and the like; in the comparative example 2, although the openings 4 are formed at the head and the tail ends of the laminating adhesive line 3, the head and the tail ends of the opening area are not overlapped with each other, the lens penetrated by the overflowed adhesive (i.e. the edge sealing adhesive) in the structure through the openings is non-directional, so that the penetration direction and the diffusion range cannot be controlled, and the overflowed adhesive is likely to enter the light conduction area 5, as shown in fig. 4 b.
In summary, in the embodiment of the present invention, when the glass substrates are stacked, air pressure is generated in the dam region formed by stacking the adhesive lines, so that openings are formed at the head and tail ends of the adhesive lines, and air in the dam region can be discharged from the openings when the glass substrates are stacked, thereby ensuring better parallelism of the stacked glass substrates, avoiding the problem of deformation of the adhesive lines due to air pressure, and further meeting the design requirements of more stability and better stacking parallelism.
In addition, since glue seeps into the lens from the opening formed by the head and the tail ends of the superposed glue line during edge sealing, in the AR lens provided by the embodiment of the invention, the head and the tail ends of the superposed glue line are overlapped with each other in the opening area, so that the structure can prevent the edge sealing glue used during subsequent edge sealing from entering the lens substrate to the greatest extent, and even if the edge sealing glue enters the lens substrate, the structure can control the infiltration trend and the diffusion range of the edge sealing glue coated during edge sealing, thereby preventing the overflow glue (namely the edge sealing glue) from entering the light conduction area; in addition, the opening that the line was glued in the end to end both ends that can the shutoff coincide completely glued to the edge sealing is glued to can prevent entering lenses such as steam, and then can promote user experience, if can wear rainy day, perhaps wear in high humidity area, perhaps wear or can wear when wading the motion etc. under the environment of cold and hot environment dewfall winter.
It should be understood that the above description is only exemplary of the invention, and is not intended to limit the scope of the invention, so that the replacement of equivalent elements or equivalent changes and modifications made in the present invention should be included within the scope of the present invention. In addition, the technical features and the technical inventions of the present invention, the technical features and the technical inventions, and the technical inventions can be freely combined and used.
Claims (10)
1. The AR lens is characterized by comprising at least two glass substrates, wherein a display structure for imaging is arranged on at least one glass substrate;
the glass substrates are mutually overlapped to form a substrate, overlapping glue lines are arranged between every two adjacent glass substrates, openings are formed at the head end and the tail end of each overlapping glue line, and the head end and the tail end of each overlapping glue line are mutually overlapped in the opening area;
the outer edge of the lens base body is coated with an edge sealing glue layer.
2. The AR lens of claim 1, wherein the display structure for imaging comprises a grating.
3. The AR lens of claim 1 or 2, wherein the adhesive line is disposed at an edge between two adjacent glass substrates in the form of a dam;
preferably, the width of the laminated glue line is 0.5mm-2mm, and the height of the laminated glue line is 0.03mm-0.15mm.
4. The AR lens of claim 1 or 2, wherein the line of laminating glue comprises an OCA glue line, an OCR glue line, or an OCR glue line with added bead particles.
5. The AR lens of claim 1 or 2, wherein the edge sealant layer comprises a black sealant layer.
6. The AR lens according to claim 1 or 2, wherein when the glass substrate is three or more, the position of the opening between the adjacent two glass substrates is the same or different.
7. The AR lens according to claim 1 or 2, wherein the head end and the tail end of the overlapped glue line are overlapped in a parallel manner or overlapped in a non-parallel manner;
preferably, when the number of the glass substrates is more than three, the arrangement modes of the head end and the tail end of the laminating adhesive line between two adjacent glass substrates are the same or different.
8. The AR lens of claim 7, wherein when the two ends of the glue line are overlapped in parallel, the width between the two ends is 1/2 of the width of the glue line;
preferably, when the head end and the tail end of the superposed glue line are arranged in a non-parallel superposed manner, the angle formed by the head end and the tail end ranges from 10 degrees to 20 degrees;
it is also preferred that the length of the overlapping portions of the head and tail ends is in the range of 3mm to 10mm.
9. A method for dispensing, folding and edge sealing of AR lenses according to any one of claims 1 to 8, wherein the method comprises:
(1) Dispensing: dispensing on the corresponding glass substrates according to the number of the glass substrates to form dispensing lines, forming openings at the head and tail ends of the dispensing lines, and overlapping the head and tail ends in the opening areas;
(2) And (3) superposition: after dispensing is finished, overlapping the glass substrates to form a substrate of the lens;
(3) Edge sealing: and coating edge sealing glue on the outer edge of the lens substrate to complete the glue dispensing, overlapping and edge sealing of the AR lens to obtain the AR lens.
10. AR glasses comprising the AR lens of any one of claims 1-8.
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| CN202211145651.0A CN115453758A (en) | 2022-09-20 | 2022-09-20 | AR (augmented reality) lens, dispensing, laminating and edge sealing method of AR lens and AR glasses |
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| CN202211145651.0A CN115453758A (en) | 2022-09-20 | 2022-09-20 | AR (augmented reality) lens, dispensing, laminating and edge sealing method of AR lens and AR glasses |
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