CN114349359B - Low-reflection high-light-transmittance cover plate and manufacturing process thereof - Google Patents
Low-reflection high-light-transmittance cover plate and manufacturing process thereof Download PDFInfo
- Publication number
- CN114349359B CN114349359B CN202111606894.5A CN202111606894A CN114349359B CN 114349359 B CN114349359 B CN 114349359B CN 202111606894 A CN202111606894 A CN 202111606894A CN 114349359 B CN114349359 B CN 114349359B
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- cover plate
- light
- liquid medicine
- apron
- drying
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- 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
- C03C15/00—Surface treatment of glass, not in the form of fibres or filaments, by etching
-
- 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
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/001—General methods for coating; Devices therefor
- C03C17/002—General methods for coating; Devices therefor for flat glass, e.g. float glass
-
- 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
- C03C2217/00—Coatings on glass
- C03C2217/70—Properties of coatings
- C03C2217/73—Anti-reflective coatings with specific characteristics
-
- 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
- C03C2218/00—Methods for coating glass
- C03C2218/10—Deposition methods
- C03C2218/11—Deposition methods from solutions or suspensions
- C03C2218/112—Deposition methods from solutions or suspensions by spraying
Abstract
The invention discloses a low-reflection high-light-transmittance cover plate and a manufacturing process thereof, the cover plate comprises a cover plate body, the cover plate body comprises two light-transmittance plates and a cover plate frame, the light-transmittance plates are fixedly arranged on two sides of the top end of the cover plate frame, one side of the cover plate frame is stuck and connected with a cleaning mechanism, the surface of the cover plate frame is stuck and connected with a barrier strip, the cover plate frame is provided with a plurality of conical grooves positioned between the two light-transmittance plates, the cleaning mechanism comprises a translation plate, a displacement block, a threaded column, a connecting rod and a smearing brush, one side of the translation plate is provided with a displacement groove, the interior of the displacement groove is rotationally connected with the threaded column, the middle of the threaded column is in threaded connection with the displacement block, and the connecting rod is fixedly arranged at the bottom end of the displacement block.
Description
Technical Field
The invention relates to the technical field of cover plates, in particular to a cover plate with low reflection and high light transmittance.
Background
Along with the continuous improvement of consumption level, the requirements of users on the cover plate are higher and higher, the low reflection high light transmission function of the cover plate is more and more paid attention to, especially in some special use scenes, the cover plate is processed by etching AG and vacuum AR coating technology at the present stage to achieve low reflection high light transmission, however, the processing technology has the following defects: the AG etching process is serious in pollution, great in harm to human bodies, high in etching processing cost of the cover plate, more in waste of raw materials, low in productivity efficiency of the vacuum AR coating process, and high in processing cost of the cover plate, so that the overall cost of the cover plate is high.
The technical scheme of the invention mainly aims at serious pollution of AG etching process, great harm to human body, high etching processing cost of the cover plate and more waste of raw materials, AR liquid medicine and AG liquid medicine are respectively sprayed and dried, and the manufactured glass cover plate has good low reflection and high light transmittance and meets the requirements of consumers.
Disclosure of Invention
The invention aims to provide a low-reflection high-light-transmittance cover plate, which solves the problems that the AG etching process provided in the background technology is serious in pollution, great in harm to human bodies, high in etching processing cost of the cover plate, more in waste of raw materials, low in productivity and efficiency of a vacuum AR coating process, and high in processing cost of the cover plate, so that the overall cost of the cover plate is high.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a low reflection high light transmissivity apron, includes the apron body, the apron body includes two light-transmitting plates and apron frame, the equal fixed mounting in both sides on apron frame top has the light-transmitting plate, one side of apron frame is pasted and is connected with clearance mechanism, the surface paste of apron frame is connected with the blend stop, set up the circular cone recess that a plurality of is located between two light-transmitting plates on the apron frame, clearance mechanism includes translation board, displacement piece, screw thread post, connecting rod and smearing brush, displacement groove has been seted up to one side of translation board, the inside rotation in displacement groove is connected with the screw thread post, the middle part threaded connection of screw thread post has the displacement piece, the bottom fixed mounting of displacement piece has the connecting rod, one side fixed mounting that the connecting rod is close to the apron frame has the smearing brush, drives the smearing brush and the apron body contacts repeatedly when the displacement piece translation, smears unnecessary liquid medicine on the clearance apron body, and the blend stop carries out the separation to the liquid medicine to the pair of cover body from the outside of apron body.
Preferably, the apron frame is last to be offered and to be located the chute of blend stop one side, blocks the liquid medicine that goes out on the apron body through installation chute, avoids the liquid medicine to overflow, is inconvenient for the staff to clear up.
Preferably, the two light-transmitting plates comprise a light-transmitting shell, a transparent partition plate, a plurality of light-transmitting glass and a plurality of anti-reflection sheets, the transparent partition plate is fixedly arranged in the light-transmitting shell, the plurality of light-transmitting glass is fixedly arranged at the top end of the transparent partition plate, the plurality of anti-reflection sheets are fixedly arranged at the bottom end of the inner wall of the light-transmitting shell, and the light is scattered by the anti-reflection sheets, so that the light-transmitting optical device can scatter transmitted light, the reflectivity of the light is reduced, the light-transmitting glass is ultraviolet high-transmittance optical glass, and the light transmittance of the light is high.
Preferably, the surface of the anti-reflection sheet is fixedly provided with a plurality of reflection blocks, the installation of the reflection blocks increases the unevenness of the surface of the anti-reflection sheet, and the reflectivity of the cover plate body to light rays is reduced.
Preferably, one end of the threaded column is fixedly provided with a joint extending to the outside, one end of the joint, far away from the threaded column, is fixedly provided with a hand wheel, a worker rotates the hand wheel, the hand wheel drives the threaded column to rotate through the joint, threads on the surface of the threaded column are mutually matched with threads on the inner wall of the displacement block, the displacement block is limited by the displacement groove matched with the shape and the size of the displacement block, and therefore the displacement block slides relative to the threaded column.
Preferably, the bottom fixed mounting of translation board has the sticky strip, the translation board is pasted with the apron frame through the sticky strip and is connected, and clearance mechanism pastes through the sticky strip and installs on the apron body.
A manufacturing process of a low-reflection high-light-transmittance cover plate comprises the following steps:
s1, spraying for the first time: adopting AG liquid medicine to carry out primary spraying operation on the cover plate body;
s2, cleaning for the first time: a worker uses a cleaning mechanism to clean excessive AG liquid medicine on the cover plate body;
s3, primary drying: drying the cover plate body;
s4, spraying for the second time: spraying the cover plate body by adopting AR liquid medicine;
s5, cleaning for the second time: a worker uses a cleaning mechanism to clean redundant AR liquid medicine on the cover plate body;
s6, drying for the second time: and drying the cover plate body.
Preferably, the first drying temperature in the step 3 is 160 ℃, the drying time is 30min, and the cover plate body sprayed with the AG medicinal liquid is placed in a drying box and dried for 30min at 160 ℃.
Preferably, the second drying temperature in the step 6 is 160 ℃, the drying time is 30min, and the cover plate body sprayed with the AR liquid medicine is placed in a drying box and dried for 30min at 160 ℃.
Preferably, the cleaning mechanism in the step 2 and the step 5 cleans the redundant liquid medicine through a smearing brush, and the smearing brush contacts with the cover plate frame to clean the redundant liquid medicine on the cover plate frame.
Compared with the prior art, the invention has the beneficial effects that:
1. the product reflectivity is reduced after AG is sprayed on the cover plate and baked through high-temperature curing at 160 ℃/30min, AR liquid medicine is used for secondary spraying, and the AG is firmly attached on the glass cover plate through high-temperature curing at 160 ℃/30min, so that the light transmittance of the cover plate is improved;
2. through setting up the light-transmitting plate, a plurality of light-transmitting glass increase the filtration of light, through setting up anti-reflection piece and reflector block, reduce the reflection efficiency of light-transmitting plate to light.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is a cross-sectional view of the cleaning mechanism of the present invention;
FIG. 4 is a cross-sectional view of a light-transmitting panel of the present invention;
FIG. 5 is a diagram showing the connection between the displacement block and the connecting rod according to the present invention;
fig. 6 is a flow chart of the present invention.
In the figure: 1. a cover plate body; 2. a light-transmitting plate; 21. light-transmitting glass; 22. an anti-reflection sheet; 23. a light reflecting block; 24. a transparent separator; 25. a light-transmitting case; 3. a conical groove; 4. a cover plate frame; 5. a barrier strip; 6. a flow blocking groove; 7. a cleaning mechanism; 71. a sticking strip; 72. a displacement groove; 73. a threaded column; 74. a hand wheel; 75. a joint; 76. a translation plate; 77. a displacement block; 78. a connecting rod; 79. and (5) painting a brush.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-6, the invention provides a cover plate with low reflection and high light transmittance, which comprises a cover plate body 1, the cover plate body 1 comprises two light-transmitting plates 2 and a cover plate frame 4, the light-transmitting plates 2 are fixedly arranged at two sides of the top end of the cover plate frame 4, a cleaning mechanism 7 is stuck and connected at one side of the cover plate frame 4, a barrier strip 5 is stuck and connected at the surface of the cover plate frame 4, a plurality of conical grooves 3 positioned between the two light-transmitting plates 2 are arranged on the cover plate frame 4, the cleaning mechanism 7 comprises a translation plate 76, a displacement block 77, a threaded column 73, a connecting rod 78 and a coating brush 79, a displacement groove 72 is arranged at one side of the translation plate 76, the threaded column 73 is rotatably connected inside the displacement groove 72, a displacement block 77 is in threaded connection with the middle part of the threaded column 73, a connecting rod 78 is fixedly arranged at the bottom end of the displacement block 77, a coating brush 79 is fixedly arranged at one side of the connecting rod 78 close to the cover plate frame 4, the coating brush 79 is driven to repeatedly contact with the cover plate body 1 when the displacement block 77 translates, the coating brush 79 is used for cleaning redundant liquid medicine on the cover plate body 1, and the barrier strip 5 is used for blocking the liquid medicine from the outer side of the cover plate body 1.
The apron frame 4 is last to be offered and to be located the chute 6 of blend stop 5 one side, blocks the liquid medicine that goes out on the apron body 1 through installation chute 6, avoids the liquid medicine to overflow, is inconvenient for the staff to clear up.
The two light-transmitting plates 2 comprise a light-transmitting shell 25, a transparent partition plate 24, a plurality of light-transmitting glass 21 and a plurality of anti-reflection sheets 22, wherein the transparent partition plate 24 is fixedly arranged in the light-transmitting shell 25, the plurality of light-transmitting glass 21 is fixedly arranged at the top end of the transparent partition plate 24, the plurality of anti-reflection sheets 22 are fixedly arranged at the bottom end of the inner wall of the light-transmitting shell 25, and the light is diffused by the anti-reflection sheets 22, so that transmitted light is scattered, the reflectivity of the light is reduced, the light-transmitting glass 21 is ultraviolet high-transmittance optical glass, and the light transmittance of the light is high.
The surface of the anti-reflection sheets 22 is fixedly provided with a plurality of reflection blocks 23, the installation of the reflection blocks 23 increases the unevenness of the surface of the anti-reflection sheets 22, and the reflectivity of the cover plate body 1 to light rays is reduced.
One end of the threaded column 73 is fixedly provided with a joint 75 which extends to the outside, one end of the joint 75 away from the threaded column 73 is fixedly provided with a hand wheel 74, a worker rotates the hand wheel 74, the hand wheel 74 drives the threaded column 73 to rotate through the joint 75, threads on the surface of the threaded column 73 are matched with threads on the inner wall of the displacement block 77, the displacement block 77 is limited by the displacement groove 72 matched with the displacement block in shape and size, and therefore the displacement block 77 slides relative to the threaded column 73.
The bottom fixed mounting of translation board 76 has the sticky strip 71, and translation board 76 is pasted with apron frame 4 through sticky strip 71 and is connected, and clearance mechanism 7 is pasted through sticky strip 71 and is installed on apron body 1.
A manufacturing process of a low-reflection high-light-transmittance cover plate comprises the following steps:
s1, spraying for the first time: adopting AG liquid medicine to carry out one-time spraying operation on the cover plate body 1;
s2, cleaning for the first time: a worker uses a cleaning mechanism 7 to clean excessive AG liquid medicine on the cover plate body 1;
s3, primary drying: drying the cover plate body 1;
s4, spraying for the second time: spraying the cover plate body 1 by adopting AR liquid medicine;
s5, cleaning for the second time: a worker uses a cleaning mechanism 7 to clean the excessive AR liquid medicine on the cover plate body 1;
s6, drying for the second time: the cover plate body 1 is dried.
The first drying temperature in the step 3 is 160 ℃, the drying time is 30min, and the cover plate body 1 sprayed with AG liquid medicine is placed in a drying box and dried for 30min at 160 ℃.
The second drying temperature in the step 6 is 160 ℃, the drying time is 30min, and the cover plate body 1 sprayed with the AR liquid medicine is placed in a drying box and dried for 30min at the temperature of 160 ℃.
The cleaning mechanism 7 in the step 2 and the step 5 cleans the redundant liquid medicine through the coating brush 79, and the coating brush 79 contacts with the cover plate frame 4 to clean the redundant liquid medicine on the cover plate frame 4.
In the invention, a worker performs one spraying operation on the cover plate body 1 by adopting AG liquid medicine, the worker rotates the hand wheel 74, the hand wheel 74 drives the threaded column 73 to rotate through the joint 75, threads on the surface of the threaded column 73 are matched with threads on the inner wall of the displacement block 77, the displacement block 77 is limited by the displacement groove 72 matched with the threads in shape and size, so the displacement block 77 slides relative to the threaded column 73, the displacement block 77 drives the smearing brush 79 to repeatedly contact with the cover plate body 1 during translation, the smearing brush 79 cleans excessive liquid medicine on the cover plate body 1, the barrier strip 5 blocks the excessive liquid medicine on the cover plate body 1 from the outer side of the cover plate body 1, the barrier groove 6 blocks the excessive liquid medicine on the cover plate body 1, the overflow of the liquid medicine is avoided, the worker is inconvenient to clean, the cover plate body 1 sprayed with AG liquid medicine is placed in a drying box at 160 ℃ for 30min, after drying, the worker adopts AR liquid medicine to spray the cover plate body 1, the worker rotates the hand wheel 74, the hand wheel 74 drives the threaded column 73 to rotate through the joint 75, the threads on the surface of the threaded column 73 are matched with the threads on the inner wall of the displacement block 77, the displacement block 77 is limited by the displacement groove 72 matched with the shape and the size of the displacement block 77, so the displacement block 77 slides relative to the threaded column 73, the displacement block 77 drives the smearing brush 79 to repeatedly contact with the cover plate body 1 during translation, the smearing brush 79 cleans redundant liquid medicine on the cover plate body 1, the cover plate body 1 sprayed with AR liquid medicine is placed in a drying box to dry for 30min at 160 ℃, the anti-reflection sheet 22 scatters light, so that transmitted light is scattered, the reflectivity of the light is reduced, the light-transmitting glass 21 is ultraviolet high-transmitting optical glass, and the light transmittance of the light is high.
Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.
Claims (8)
1. The utility model provides a low reflection high light transmissivity apron, includes apron body (1), its characterized in that, apron body (1) includes two light transmissivity boards (2) and apron frame (4), the equal fixed mounting in both sides on apron frame (4) top has light transmissivity board (2), the one side paste of apron frame (4) is connected with clearance mechanism (7), the surface paste of apron frame (4) is connected with blend stop (5), set up conical groove (3) that a plurality of is located between two light transmissivity boards (2) on apron frame (4), clearance mechanism (7) include translation board (76), displacement piece (77), screw thread post (73), connecting rod (78) and paint brush (79), displacement groove (72) have been seted up to one side of translation board (76), the inside rotation of displacement groove (72) is connected with screw thread post (73), the middle part threaded connection of screw thread post (73) has displacement piece (77), the bottom fixed mounting of displacement piece (77) has connecting rod (78), one side that connecting rod (78) are close to apron frame (4) paints brush (79). The two light-transmitting plates (2) comprise a light-transmitting shell (25), a transparent partition plate (24), a plurality of light-transmitting glass (21) and a plurality of anti-reflecting sheets (22), wherein the transparent partition plate (24) is fixedly arranged in the light-transmitting shell (25), the plurality of light-transmitting glass (21) is fixedly arranged at the top end of the transparent partition plate (24), and the plurality of anti-reflecting sheets (22) are fixedly arranged at the bottom end of the inner wall of the light-transmitting shell (25); the surfaces of the anti-reflection sheets (22) are fixedly provided with a plurality of reflection blocks (23).
2. The low reflection, high light transmittance cover sheet according to claim 1, wherein: a blocking groove (6) positioned at one side of the blocking strip (5) is formed in the cover plate frame (4).
3. The low reflection, high light transmittance cover sheet according to claim 1, wherein: one end of the threaded column (73) is fixedly provided with a joint (75) extending to the outside, and one end of the joint (75) far away from the threaded column (73) is fixedly provided with a hand wheel (74).
4. The low reflection, high light transmittance cover sheet according to claim 1, wherein: the bottom end of the translation plate (76) is fixedly provided with an adhesive strip (71), and the translation plate (76) is in adhesive connection with the cover plate frame (4) through the adhesive strip (71).
5. A process for manufacturing a cover plate with low reflection and high light transmittance, comprising the steps of any one of claims 1 to 4, and comprising the following steps:
s1, spraying for the first time: adopting AG liquid medicine to carry out one-time spraying operation on the cover plate body (1);
s2, cleaning for the first time: a worker uses a cleaning mechanism (7) to clean excessive AG liquid medicine on the cover plate body (1);
s3, primary drying: drying the cover plate body (1);
s4, spraying for the second time: spraying the cover plate body (1) by adopting AR liquid medicine;
s5, cleaning for the second time: a worker uses a cleaning mechanism (7) to clean redundant AR liquid medicine on the cover plate body (1);
s6, drying for the second time: and drying the cover plate body (1).
6. The process for manufacturing the cover plate with low reflection and high light transmittance according to claim 5, wherein the process comprises the following steps: the first drying temperature in the step 3 is 160 ℃, and the drying time is 30min.
7. The process for manufacturing the cover plate with low reflection and high light transmittance according to claim 5, wherein the process comprises the following steps: the second drying temperature in the step 6 is 160 ℃, and the drying time is 30min.
8. The process for manufacturing the cover plate with low reflection and high light transmittance according to claim 5, wherein the process comprises the following steps: the cleaning mechanism (7) in the step 2 and the step 5 cleans redundant liquid medicine through a smearing brush (79).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111606894.5A CN114349359B (en) | 2021-12-27 | 2021-12-27 | Low-reflection high-light-transmittance cover plate and manufacturing process thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111606894.5A CN114349359B (en) | 2021-12-27 | 2021-12-27 | Low-reflection high-light-transmittance cover plate and manufacturing process thereof |
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| Publication Number | Publication Date |
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| CN114349359A CN114349359A (en) | 2022-04-15 |
| CN114349359B true CN114349359B (en) | 2023-06-09 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0728057A (en) * | 1993-05-06 | 1995-01-31 | Ono Gijutsu Kenkyusho:Kk | Double layer reflection layer for light transmission plate |
| WO2003062165A1 (en) * | 2002-01-22 | 2003-07-31 | Nippon Sheet Glass Company, Limited | Glass sheet with low reflection coating |
| JP2010217935A (en) * | 2010-07-08 | 2010-09-30 | Fujimori Kogyo Co Ltd | Method of manufacturing optically functional film |
| WO2015198861A1 (en) * | 2014-06-25 | 2015-12-30 | 日本精機株式会社 | Meter device |
| WO2019187512A1 (en) * | 2018-03-27 | 2019-10-03 | 富士フイルム株式会社 | Light-transmitting member, image display device, and watch |
| CN111170652A (en) * | 2020-01-14 | 2020-05-19 | 伯恩光学(惠州)有限公司 | Processing technology of non-etching anti-dazzle cover plate |
| WO2021012144A1 (en) * | 2019-07-22 | 2021-01-28 | 重庆鑫景特种玻璃有限公司 | Anti-reflective glass, and preparation method therefor and application thereof |
| CN213865961U (en) * | 2020-12-22 | 2021-08-03 | 四川佛能达科技有限公司 | Fireproof liquid spraying device for single fireproof glass |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160071652A (en) * | 2014-12-12 | 2016-06-22 | 현대자동차주식회사 | Touch screen structure and manufacturing method thereof |
-
2021
- 2021-12-27 CN CN202111606894.5A patent/CN114349359B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0728057A (en) * | 1993-05-06 | 1995-01-31 | Ono Gijutsu Kenkyusho:Kk | Double layer reflection layer for light transmission plate |
| WO2003062165A1 (en) * | 2002-01-22 | 2003-07-31 | Nippon Sheet Glass Company, Limited | Glass sheet with low reflection coating |
| JP2010217935A (en) * | 2010-07-08 | 2010-09-30 | Fujimori Kogyo Co Ltd | Method of manufacturing optically functional film |
| WO2015198861A1 (en) * | 2014-06-25 | 2015-12-30 | 日本精機株式会社 | Meter device |
| WO2019187512A1 (en) * | 2018-03-27 | 2019-10-03 | 富士フイルム株式会社 | Light-transmitting member, image display device, and watch |
| WO2021012144A1 (en) * | 2019-07-22 | 2021-01-28 | 重庆鑫景特种玻璃有限公司 | Anti-reflective glass, and preparation method therefor and application thereof |
| CN111170652A (en) * | 2020-01-14 | 2020-05-19 | 伯恩光学(惠州)有限公司 | Processing technology of non-etching anti-dazzle cover plate |
| CN213865961U (en) * | 2020-12-22 | 2021-08-03 | 四川佛能达科技有限公司 | Fireproof liquid spraying device for single fireproof glass |
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| CN114349359A (en) | 2022-04-15 |
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Effective date of registration: 20230911 Address after: 215000 No.8, Beiqian lane, Suzhou Industrial Park, Jiangsu Province Patentee after: MUTTO OPTRONICS Corp. Address before: 224000 building 6, Dongshan Precision Industrial Park, No. 999, Yandu Road, Yandu District, Yancheng City, Jiangsu Province (b) Patentee before: Yancheng Mudong Photoelectric Technology Co.,Ltd. |