CN115432943A - Glass lens and preparation method thereof - Google Patents
Glass lens and preparation method thereof Download PDFInfo
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- CN115432943A CN115432943A CN202211065270.1A CN202211065270A CN115432943A CN 115432943 A CN115432943 A CN 115432943A CN 202211065270 A CN202211065270 A CN 202211065270A CN 115432943 A CN115432943 A CN 115432943A
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- ion exchange
- glass lens
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- treatment
- glass
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- 239000011521 glass Substances 0.000 title claims abstract description 115
- 238000002360 preparation method Methods 0.000 title abstract description 15
- 238000005342 ion exchange Methods 0.000 claims abstract description 121
- 238000011282 treatment Methods 0.000 claims abstract description 66
- 238000012545 processing Methods 0.000 claims abstract description 14
- 239000000758 substrate Substances 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 14
- 230000004888 barrier function Effects 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 8
- 230000005684 electric field Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 230000007797 corrosion Effects 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 238000003486 chemical etching Methods 0.000 claims description 2
- 238000003754 machining Methods 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 abstract description 15
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 230000008878 coupling Effects 0.000 abstract description 6
- 238000010168 coupling process Methods 0.000 abstract description 6
- 238000005859 coupling reaction Methods 0.000 abstract description 6
- 238000003384 imaging method Methods 0.000 abstract description 6
- 230000009466 transformation Effects 0.000 abstract description 3
- 150000003839 salts Chemical class 0.000 description 21
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 12
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 description 8
- 238000001514 detection method Methods 0.000 description 8
- 238000002156 mixing Methods 0.000 description 8
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 8
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 8
- 238000003756 stirring Methods 0.000 description 8
- 230000004075 alteration Effects 0.000 description 7
- 230000008859 change Effects 0.000 description 6
- 235000010344 sodium nitrate Nutrition 0.000 description 6
- 239000004317 sodium nitrate Substances 0.000 description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 5
- 229910052719 titanium Inorganic materials 0.000 description 5
- 239000010936 titanium Substances 0.000 description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- 229910052697 platinum Inorganic materials 0.000 description 4
- 235000010333 potassium nitrate Nutrition 0.000 description 4
- 239000004323 potassium nitrate Substances 0.000 description 4
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000007731 hot pressing Methods 0.000 description 2
- YIXJRHPUWRPCBB-UHFFFAOYSA-N magnesium nitrate Chemical compound [Mg+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O YIXJRHPUWRPCBB-UHFFFAOYSA-N 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 229910001961 silver nitrate Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- FYWSTUCDSVYLPV-UHFFFAOYSA-N nitrooxythallium Chemical compound [Tl+].[O-][N+]([O-])=O FYWSTUCDSVYLPV-UHFFFAOYSA-N 0.000 description 1
- 238000012634 optical imaging Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C21/00—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
- C03C21/001—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions
- C03C21/002—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions to perform ion-exchange between alkali ions
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
The application relates to the field of glass lenses, and particularly discloses a glass lens and a preparation method thereof. At least one side of the glass lens is provided with an ion exchange area, and at least one part of the ion exchange area is diffused in the glass lens through ion exchange treatment. The preparation method comprises the following preparation steps: s1, carrying out primary ion exchange treatment; s2, forming treatment; and S3, secondary ion exchange treatment. According to the glass lens array, the glass lens array manufactured through ion exchange treatment is high in processing precision and good in array arrangement uniformity, the refractive indexes of the micro lens elements are distributed in a three-dimensional gradient mode, and the lens elements are buried in the glass substrate, so that the glass lens has good performances in the aspects of transmission, transformation, focusing, imaging, coupling and the like of optical information.
Description
Technical Field
The application relates to the field of glass lenses, in particular to a glass lens and a preparation method thereof.
Background
The lens is one of important optical elements, has various forms and functions, and is widely applied to the fields of optical focusing, transmission, imaging, beam shaping and the like. Compared with plastic lenses, glass lenses have more stable optical characteristics and better imaging quality, and are generally used in occasions with higher requirements on optical imaging, light energy loss and durability.
In general, once a glass lens is manufactured, its focusing and imaging properties are determined, and conventional microfabrication methods have difficulty in fine-tuning its optical properties, generally requiring redesign of the lens structure or readjustment of the manufacturing process.
In view of the above-mentioned related art, the inventor has considered that the conventional glass lens cannot achieve a good optical property adjustment effect in the subsequent processing.
Disclosure of Invention
In order to overcome the defect that the optical performance effect obtained in the subsequent processing process of the conventional glass lens is poor, the application provides the glass lens and the preparation method thereof.
In a first aspect, the present application provides a glass lens, which adopts the following technical solution:
at least one side of the glass lens is provided with an ion exchange area, and at least one part of the ion exchange area is diffused in the glass lens through ion exchange treatment.
By adopting the technical scheme, the glass lens array manufactured by ion exchange treatment through ion exchange treatment is high in processing precision and good in array arrangement uniformity, the refractive index of the micro lens elements is in three-dimensional gradient distribution, and the lens elements are buried in the glass substrate, so that the glass lens has good performances in the aspects of transmission, transformation, focusing, imaging, coupling and the like of optical information.
Preferably, the glass lens is formed as at least one of an array lens, an aspherical lens, or a diffractive lens.
Through adopting above-mentioned technical scheme, this application has further optimized the structure of glass lens, through choosing for use array lens, aspherical lens or diffraction lens, satisfies the demand to glass lens structure under the different use scenes.
In a second aspect, the present application provides a method for producing a glass lens, comprising the following production steps:
s1, primary ion exchange treatment: selecting a glass lens and carrying out first ion exchange treatment on the glass lens to form a surface ion exchange area on the glass lens;
s2, forming treatment: processing two sides of the glass lens subjected to the primary ion exchange treatment to form a glass lens;
s3, secondary ion exchange treatment: and (3) taking the glass lens, carrying out secondary ion exchange treatment, and diffusing the surface ion exchange area into the substrate of the glass lens to obtain the ion exchange lens.
By adopting the technical scheme, the technical scheme for preparing the ion exchange lens is further optimized, and the treatment of the ion exchange treatment on the glass lens structure is further optimized through twice ion exchange treatment, so that the glass lens structure is more precise and stable, and the processing precision and the refractive index of the prepared glass lens array are effectively improved.
Preferably, the first ion exchange process of step S1 further includes the steps of:
s11, coating treatment: performing surface coating treatment on one side of the glass lens to form a barrier film on one side of the surface of the glass lens;
the molding process described in step S2 further includes the steps of:
s21, corrosion treatment: and carrying out corrosion treatment on the barrier film on one side of the glass lens subjected to the primary ion exchange treatment to remove the barrier film.
By adopting the technical scheme, the scheme for preparing the ion exchange lens is further optimized, and the glass lens after ion exchange treatment is formed on one side of the glass lens through corrosion treatment after film coating, so that the requirement on the glass lens structure in the actual use process is met.
Preferably, the first ion exchange in step S1 includes any one of thermal ion exchange or electric field assisted ion exchange.
Preferably, the molding treatment in step S2 includes at least one of machining molding, mold hot-press molding, or chemical etching molding.
Preferably, the second ion exchange in step S2 includes any one of thermal ion exchange or electric field assisted ion exchange.
Through adopting above-mentioned technical scheme, this application can adjust glass lens aberration and colour difference through the change of ion exchange process parameter, realizes the change of glass lens optical property, and this application is through selecting for use different processing scheme simultaneously for adjust the structure of ion exchange lens in this application, thereby effectively satisfied glass lens in the demand in the aspects such as transmission, transform, focus, formation of image, coupling of light information.
In summary, the present application has the following beneficial effects:
first, the glass lens array manufactured by ion exchange treatment is high in processing precision and good in array arrangement uniformity through ion exchange treatment, the refractive index of the micro lens elements is in three-dimensional gradient distribution, and the lens elements are buried in the glass substrate, so that the glass lens has good performance in the aspects of transmission, transformation, focusing, imaging, coupling and the like of optical information.
Second, this application has further optimized the structure of glass lens, through choosing for use array lens, aspheric lens or diffraction lens, satisfies the demand to glass lens structure under the different use scenes.
Thirdly, the technical scheme for preparing the ion exchange lens is further optimized, and the treatment of the ion exchange treatment on the glass lens structure is further optimized through twice ion exchange treatment, so that the glass lens structure is more precise and stable, and the processing precision and the refractive index of the prepared glass lens array are effectively improved. The aberration and chromatic aberration of the glass lens can be adjusted through the change of the ion exchange process parameters, and the change of the optical performance of the glass lens is realized. This application is through selecting for use different processing scheme for the structure of ion exchange lens in this application is adjusted, thereby has effectively satisfied the demand of glass lens in aspects such as transmission, transform, focus, formation of image, coupling of focusing on the optical information.
Drawings
Fig. 1 is a schematic flow chart of a method for manufacturing a glass lens according to example 1 of the present application;
FIG. 2 is a schematic flow chart of a method of fabricating a glass lens according to example 2 of the present application;
FIG. 3 is a schematic flow chart of a method for manufacturing a glass lens according to example 3 of the present application;
FIG. 4 is a schematic flow chart of a method of fabricating a glass lens according to example 4 of the present application;
FIG. 5 is a schematic view of the detection flow of the ion exchange lens prepared in examples 1 to 4 of the present application;
fig. 6 is a picture of focused spot detection of a sample lens according to example 1 of the present application;
fig. 7 is a picture of focused spot detection of a control lens according to example 1 of the present application;
fig. 8 is a picture of the focused spot detection of the sample lens of example 2 of the present application;
fig. 9 is a picture of focused spot detection of a control lens in example 2 of the present application.
Detailed Description
The present application will be described in further detail with reference to examples.
Preparation example 1: ion exchange molten salt 1: stirring and mixing sodium nitrate, calcium nitrate and potassium nitrate according to the molar percentage of 1.
Preparation example 2: ion exchange molten salt 2: according to mole percentage 1:1:0.01, stirring and mixing sodium nitrate, calcium nitrate and silver nitrate to prepare the ion exchange molten salt 2.
Preparation example 3: ion exchange molten salt 3: and (3) stirring and mixing potassium nitrate and calcium nitrate according to the molar percentage of 1:1 to prepare the ion exchange molten salt 3.
Preparation example 4: ion-exchange molten salt 4: and stirring and mixing sodium nitrate and calcium nitrate according to the mass percent of 1:1 to prepare the ion exchange molten salt 4.
Preparation example 5: ion-exchange molten salt 5: stirring and mixing potassium nitrate and silver nitrate according to the molar percentage of 1.
Preparation example 6: ion-exchange molten salt 6: and stirring and mixing the sodium nitrate and the potassium nitrate according to the mass percent of 1:1 to prepare the ion exchange molten salt 6.
Preparation example 7: ion exchange molten salt 7: and stirring and mixing sodium nitrate and thallium nitrate according to the molar percentage of 1.
Preparation example 8: ion-exchange molten salt 8: and (3) stirring and mixing sodium nitrate and magnesium nitrate according to the molar percentage of 1:1 to prepare the ion exchange molten salt 8.
Example 1
S1, primary ion exchange treatment: immersing a glass lens with the thickness of 5mm into ion exchange molten salt 1 to carry out primary electric field assisted ion exchange, and exchanging for 4h through a titanium anode, a titanium cathode and an external direct current power supply with the energizing voltage of 200V to form a surface ion exchange area on the upper surface of the glass lens;
s2, forming treatment: carrying out mould hot pressing on the upper surface and the lower surface of the glass lens subjected to the primary ion exchange treatment to form a glass spherical lens of the glass lens array;
s3, secondary ion exchange treatment: and (3) immersing the upper surface of the glass spherical lens of the glass lens array into ion exchange molten salt 3, and carrying out heat ion exchange treatment for 48 hours to obtain the ion exchange lens.
Example 2
S1, primary ion exchange treatment: plating a layer of aluminum film with the thickness of 160nm on the lower surface of a glass lens with the thickness of 5mm to form a barrier film on one side of the surface of the glass lens; immersing the coated glass lens into ion exchange molten salt 2 for carrying out first heat ion exchange for 24 hours to form a surface ion exchange area on the upper surface of the glass lens;
s2, forming treatment: removing the barrier film on one side of the glass lens subjected to the primary ion exchange treatment by corroding with a phosphoric acid corrosive liquid, and grinding and polishing the lower surface of the glass lens subjected to the primary ion exchange treatment to form a glass spherical lens;
s3, secondary ion exchange treatment: and (3) carrying out secondary ion exchange treatment on the glass spherical lens, diffusing a surface ion exchange area into the glass spherical lens through a platinum anode, a platinum cathode and an external direct-current power supply in the ion exchange molten salt 4, adjusting the applied voltage of the external direct-current power supply to 300V, and lasting for 48h to obtain the ion exchange lens.
Example 3
S1, primary ion exchange treatment: plating a titanium film with the thickness of 1 mu m on the lower surface of a glass lens with the thickness of 20mm to form a barrier film on one side of the surface of the glass lens; immersing the coated glass lens into ion exchange molten salt 5 for carrying out first heat ion exchange for 24 hours, and forming a surface ion exchange area on the upper surface of the glass lens;
s2, forming treatment: removing the barrier film on one side of the glass lens subjected to the primary ion exchange treatment by corroding with a phosphoric acid corrosive solution, carrying out mold hot pressing on the upper surface of the glass lens subjected to the primary ion exchange treatment, and grinding and polishing the lower surface of the glass lens to form a glass diffraction lens;
s3, secondary ion exchange treatment: and (3) carrying out secondary ion exchange treatment on the glass diffraction lens, and carrying out thermal ion exchange treatment for 36 hours in the ion exchange molten salt 6 to prepare the ion exchange lens.
Example 4
S1, primary ion exchange treatment: immersing a glass lens with the thickness of 16mm into ion exchange molten salt 7 for carrying out primary electric field assisted ion exchange, and forming a surface ion exchange area on the upper surface of the glass lens through the exchange of a platinum anode, a platinum cathode and an external direct current power supply with the energizing voltage of 300V for 8 h;
s2, forming treatment: chemically etching the lower surface of the glass lens subjected to the primary ion exchange treatment to form a glass aspheric lens;
s3, secondary ion exchange treatment: and immersing the glass aspheric lens into ion exchange molten salt 8, and continuing for 24 hours by using a titanium anode, a titanium cathode and an external direct current power supply with the applied voltage of 100V to prepare the ion exchange lens.
Performance test
The ion exchange lenses prepared in examples 1 to 4 were examined by the following specific examination method as shown in FIG. 5:
the detection system consists of a parallel light source, a diaphragm, a lens carrying platform, a CCD, an adjusting base and a computer. The parallel light beams penetrate through the diaphragm to irradiate the sample lens and the comparison lens, the sample lens is an embodiment lens, and the comparison lens is a lens which does not perform primary and secondary ion exchange processes but has the same other processing processes. The adjusting base behind the adjusting lens carrier and the CCD move along with the adjusting base, and the focusing position and the focusing focal spot size of the parallel light can be obtained in computer acquisition software. The improvement effect of the glass lens aberration or chromatic aberration after the primary and secondary ion exchange processes can be evaluated by comparing the focusing position and the focusing focal spot size.
The detection results are shown in fig. 6 to 9: wherein FIG. 6 is a focal spot focused by a lens of the sample of embodiment 1;
FIG. 7 is embodiment 1 focusing a focal spot against a lens;
FIG. 8 is a focal spot focused by a sample lens according to example 2;
fig. 9 is example 2 focusing focal spots against a lens.
Examples 3 and 4 the test results were similar to example 2.
The detection results of fig. 6 to 9 show that the optical performance of the glass lens can be effectively improved by adding the primary and secondary ion exchange processes in the lens manufacturing process, and further illustrate the technical scheme of the present application, and the treatment of the ion exchange process on the glass lens structure is further optimized by two ion exchange processes, so that the glass lens structure is more precise and stable, and the processing precision and the refractive index of the prepared glass lens array are effectively improved. Meanwhile, the aberration and chromatic aberration of the glass lens can be adjusted through the change of the ion exchange process parameters, and the change of the optical performance of the glass lens is realized. This application is through selecting for use different processing scheme for the structure of ion exchange lens in this application is adjusted, thereby has effectively satisfied the demand of glass lens in aspects such as transmission, transform, focus, formation of image, coupling of focusing on the optical information.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (7)
1. A glass lens, characterized in that at least one side of the glass lens is provided with an ion exchange area, and at least one part of the ion exchange area is diffused in the glass lens through ion exchange treatment.
2. The glass lens according to claim 1, wherein the glass lens is formed as at least one of an array lens, an aspherical lens or a diffractive lens.
3. The method for producing a glass lens according to any one of claims 1 to 2, comprising the production steps of:
s1, primary ion exchange treatment: selecting a glass lens and carrying out first ion exchange treatment on the glass lens to form a surface ion exchange area on the glass lens;
s2, forming treatment: processing two sides of the glass lens subjected to the primary ion exchange treatment to form a glass lens;
s3, secondary ion exchange treatment: and (3) taking the glass lens, carrying out secondary ion exchange treatment, and diffusing the surface ion exchange area into the substrate of the glass lens to obtain the ion exchange lens.
4. The method as claimed in claim 3, wherein the first ion exchange treatment of step S1 further comprises the steps of:
s11, coating treatment: performing surface coating treatment on one side of the glass lens to form a barrier film on one side of the surface of the glass lens;
the molding process described in step S2 further includes the steps of:
s21, corrosion treatment: and carrying out corrosion treatment on the barrier film on one side of the glass lens subjected to the primary ion exchange treatment to remove the barrier film.
5. The method according to claim 3, wherein the first ion exchange of step S1 comprises any one of thermal ion exchange or electric field assisted ion exchange.
6. The method according to claim 3, wherein the molding process of step S2 comprises at least one of machining, mold hot-press molding, or chemical etching.
7. The method according to claim 3, wherein the second ion exchange of step S2 comprises any one of thermal ion exchange or electric field assisted ion exchange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202211065270.1A CN115432943A (en) | 2022-08-31 | 2022-08-31 | Glass lens and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211065270.1A CN115432943A (en) | 2022-08-31 | 2022-08-31 | Glass lens and preparation method thereof |
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| CN115432943A true CN115432943A (en) | 2022-12-06 |
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| CN109264974A (en) * | 2018-10-22 | 2019-01-25 | 江西沃格光电股份有限公司 | Bend glass cover board and its manufacturing method |
| CN111624685A (en) * | 2020-06-18 | 2020-09-04 | 江西省亚华电子材料有限公司 | Production process of camera reinforced lens |
| CN112110646A (en) * | 2020-09-25 | 2020-12-22 | 成都光明光电股份有限公司 | Glass material, gradient refractive index glass and manufacturing method thereof |
-
2022
- 2022-08-31 CN CN202211065270.1A patent/CN115432943A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001221926A (en) * | 1999-11-30 | 2001-08-17 | Fdk Corp | Production of optical waveguide element |
| CN107459262A (en) * | 2016-05-30 | 2017-12-12 | 蓝思科技股份有限公司 | A kind of processing method of glass camera eyeglass and its device of use |
| CN108314300A (en) * | 2018-04-03 | 2018-07-24 | 维达力实业(深圳)有限公司 | Bend glass and preparation method thereof and application |
| CN109264974A (en) * | 2018-10-22 | 2019-01-25 | 江西沃格光电股份有限公司 | Bend glass cover board and its manufacturing method |
| CN111624685A (en) * | 2020-06-18 | 2020-09-04 | 江西省亚华电子材料有限公司 | Production process of camera reinforced lens |
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Application publication date: 20221206 |