CN112649912A - 一种蓝玻璃红外截止滤光片的制备工艺 - Google Patents
一种蓝玻璃红外截止滤光片的制备工艺 Download PDFInfo
- Publication number
- CN112649912A CN112649912A CN202011538847.7A CN202011538847A CN112649912A CN 112649912 A CN112649912 A CN 112649912A CN 202011538847 A CN202011538847 A CN 202011538847A CN 112649912 A CN112649912 A CN 112649912A
- Authority
- CN
- China
- Prior art keywords
- infrared cut
- cleaning
- namely
- filter
- coating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011521 glass Substances 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000010408 film Substances 0.000 claims abstract description 27
- 238000004140 cleaning Methods 0.000 claims abstract description 23
- 238000000227 grinding Methods 0.000 claims abstract description 19
- 239000013078 crystal Substances 0.000 claims abstract description 18
- 239000011248 coating agent Substances 0.000 claims abstract description 16
- 238000000576 coating method Methods 0.000 claims abstract description 16
- 238000005498 polishing Methods 0.000 claims abstract description 16
- 238000004506 ultrasonic cleaning Methods 0.000 claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 claims abstract description 11
- ORUIBWPALBXDOA-UHFFFAOYSA-L magnesium fluoride Chemical compound [F-].[F-].[Mg+2] ORUIBWPALBXDOA-UHFFFAOYSA-L 0.000 claims abstract description 8
- 229910001635 magnesium fluoride Inorganic materials 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 8
- 239000010409 thin film Substances 0.000 claims abstract description 8
- 238000005520 cutting process Methods 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims abstract description 7
- 239000005304 optical glass Substances 0.000 claims abstract description 7
- 238000005566 electron beam evaporation Methods 0.000 claims abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- AZCUJQOIQYJWQJ-UHFFFAOYSA-N oxygen(2-) titanium(4+) trihydrate Chemical compound [O-2].[O-2].[Ti+4].O.O.O AZCUJQOIQYJWQJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- 235000012239 silicon dioxide Nutrition 0.000 claims description 4
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 239000007888 film coating Substances 0.000 claims description 3
- 238000009501 film coating Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000011550 stock solution Substances 0.000 claims description 3
- 230000002950 deficient Effects 0.000 abstract description 2
- 238000010923 batch production Methods 0.000 abstract 1
- 238000003384 imaging method Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/28—Interference filters
- G02B5/281—Interference filters designed for the infrared light
- G02B5/282—Interference filters designed for the infrared light reflecting for infrared and transparent for visible light, e.g. heat reflectors, laser protection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/20—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground
- B24B7/22—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain
- B24B7/24—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain for grinding or polishing glass
- B24B7/242—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain for grinding or polishing glass for plate glass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
- B24B9/08—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
- B24B9/10—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of plate glass
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
- C03B33/02—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
本发明公开了一种蓝玻璃红外截止滤光片的制备工艺，包括以下步骤：S1.划大片，将大片光学玻璃划切成预定规格尺寸；S2.研磨；S3.抛光；S4.清洗，将抛光后的玻璃片放在超声波清洗机中进行清洗，清洗完成后进行烘干得到待加工晶体；S5.镀膜，在晶体正表面利用电子束蒸镀镀上氟化镁薄膜层，然后再在氟化镁薄膜层的上表面镀一层滤光膜，之后在晶体的反面以及滤光膜的上表面分别镀上红外截止膜；S6.自动划片；S7.再清洗。本申请采用新的工艺，不仅对现有的工艺进行优化，而且还可以大大提高生产的效率，减少残次品的出现，同时采用本申请记载的制备工艺对蓝玻璃红外截止滤光片进行生产所需要的技工要求较低，进行大规模批量生产，进一步了降低了生产的成本。
Description
技术领域
本发明涉及一种蓝玻璃红外截止滤光片的制备工艺及其使用方法，属于滤光片生产技术领域。
背景技术
红外截止滤光片(又叫红外滤光片或吸热过滤片)是一种应用于过滤红外波段的滤镜。比如装在白炽光灯的设备上(如：幻灯片、投影机)可以阻挡不必要的热度灼伤镜头，装在固态电子器件的摄影机上，可以阻止红外线穿过摄像机的镜头造成图片失真。典型的红外滤镜通常以蓝色镜片为主，但仍会阻隔可见光波段较长的红光，通过在成像***中加入红外截止滤光片，阻挡该部分干扰成像质量的红外光，可以使所成影像更加符合人眼的最佳感觉，与光学低通滤波器有所不同的是，光学低通滤波器主要应用于数码相机、数码摄像机和视频监控摄像头中，目的是为消除红外光的伪色现象，通过空间滤波去掉莫尔条纹；而红外截止滤光片则主要应用于可拍照手机、电脑内置摄像头、汽车摄像头的镜头***，这些下游产品目前对于图像的成像质量要求不高，不需要考虑空间滤波，而关注的是光波滤波，即红外光抑制。
目前现有红外截止滤光片制备工艺比较繁琐，生产效率不高，而且生产出来的质量参差不齐，针对上述情况，在现有的精炼剂的基础上进行技术创新。
发明内容
针对现有技术的不足，本发明提供了一种蓝玻璃红外截止滤光片的制备工艺，解决了上述背景技术中提出的问题。
本发明的目的在于提供一种蓝玻璃红外截止滤光片的制备工艺，包括以下步骤：
S1.划大片，将大片光学玻璃划切成预定规格尺寸；
S2.研磨，将切割好的玻璃片在研磨机上进行研磨；
S3.抛光，将S2中研磨好的玻璃片在范成法高速抛光机进行抛光；
S4.清洗，将抛光后的玻璃片放在超声波清洗机中进行清洗，清洗完成后进行烘干得到待加工晶体；
S5.镀膜，在晶体正表面利用电子束蒸镀镀上氟化镁薄膜层，然后再在氟化镁薄膜层的上表面镀一层滤光膜，之后在晶体的反面以及滤光膜的上表面分别镀上红外截止膜；
S6.自动划片，按照规格要求将镀膜完毕后的晶片进行划片；
S7.再清洗，将步骤S6中得到的晶体利用超声波清洗机中进行再次清洗，清洗完毕后烘干。
优选的，所述步骤S1中大片光学玻璃采用蓝玻璃材质，且划大片之前进行清洗干燥。
优选的，所述步骤S2中采用具有切削能力的金刚石在研磨轮旋转电机的带动下雨玻璃片的边部做相对运动，且玻璃片的流动方向与研磨轮转动方向相反，同时研磨时不断的用水进行喷洒。
优选的，所述步骤S3中抛光时间为15-30min，且抛光原液与水的比列为1:1。
优选的，所述步骤S4超声波清洗液采用纯水，且超声波清洗时间为10-40min。
优选的，所述步骤S5中滤光膜包含有两层，分别为五氧化三钛膜和二氧化硅膜，且五氧化三钛膜的厚度为300nm,二氧化硅膜的厚度为500nm。
优选的，所述步骤S7中晶体利用超声波清洗机中进行再次清洗的时间为10-15min。
与现有技术相比，本发明的有益效果如下：
本发明提供的蓝玻璃红外截止滤光片的制备工艺，采用新的工艺，不仅对现有的工艺进行优化，而且还可以大大提高生产的效率，减少残次品的出现，同时采用本申请记载的制备工艺对蓝玻璃红外截止滤光片进行生产所需要的技工要求较低，很容易上手进行大规模批量生产，进一步了降低了生产的成本。
具体实施方式
为使本领域技术人员更加清楚和明确本发明的技术方案，下面结合实施例对本发明作进一步详细的描述，但本发明的实施方式不限于此。
本实施例提供的一种蓝玻璃红外截止滤光片的制备工艺，包括以下步骤：
S1.划大片，将大片光学玻璃划切成预定规格尺寸；
S2.研磨，将切割好的玻璃片在研磨机上进行研磨；
S3.抛光，将S2中研磨好的玻璃片在范成法高速抛光机进行抛光；
S4.清洗，将抛光后的玻璃片放在超声波清洗机中进行清洗，清洗完成后进行烘干得到待加工晶体；
S5.镀膜，在晶体正表面利用电子束蒸镀镀上氟化镁薄膜层，然后再在氟化镁薄膜层的上表面镀一层滤光膜，之后在晶体的反面以及滤光膜的上表面分别镀上红外截止膜；
S6.自动划片，按照规格要求将镀膜完毕后的晶片进行划片；
S7.再清洗，将步骤S6中得到的晶体利用超声波清洗机中进行再次清洗，清洗完毕后烘干。
步骤S1中大片光学玻璃采用蓝玻璃材质，且划大片之前进行清洗干燥。
步骤S2中采用具有切削能力的金刚石在研磨轮旋转电机的带动下雨玻璃片的边部做相对运动，且玻璃片的流动方向与研磨轮转动方向相反，同时研磨时不断的用水进行喷洒。
步骤S3中抛光时间为15-30min，且抛光原液与水的比列为1:1。
步骤S4超声波清洗液采用纯水，且超声波清洗时间为10-40min。
步骤S5中滤光膜包含有两层，分别为五氧化三钛膜和二氧化硅膜，且五氧化三钛膜的厚度为300nm,二氧化硅膜的厚度为500nm。
步骤S7中晶体利用超声波清洗机中进行再次清洗的时间为10-15min。
以上所述，仅为本发明进一步的实施例，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明所公开的范围内，根据本发明的技术方案及其构思加以等同替换或改变，都属于本发明的保护范围。
Claims (7)
1.一种蓝玻璃红外截止滤光片的制备工艺，其特征在于,包括以下步骤：
S1.划大片，将大片光学玻璃划切成预定规格尺寸；
S2.研磨，将切割好的玻璃片在研磨机上进行研磨；
S3.抛光，将S2中研磨好的玻璃片在范成法高速抛光机进行抛光；
S4.清洗，将抛光后的玻璃片放在超声波清洗机中进行清洗，清洗完成后进行烘干得到待加工晶体；
S5.镀膜，在晶体正表面利用电子束蒸镀镀上氟化镁薄膜层，然后再在氟化镁薄膜层的上表面镀一层滤光膜，之后在晶体的反面以及滤光膜的上表面分别镀上红外截止膜；
S6.自动划片，按照规格要求将镀膜完毕后的晶片进行划片；
S7.再清洗，将步骤S6中得到的晶体利用超声波清洗机中进行再次清洗，清洗完毕后烘干。
2.根据权利要求1所述的一种蓝玻璃红外截止滤光片的制备工艺，其特征在于：所述步骤S1中大片光学玻璃采用蓝玻璃材质，且划大片之前进行清洗干燥。
3.根据权利要求1所述的一种蓝玻璃红外截止滤光片的制备工艺，其特征在于：所述步骤S2中采用具有切削能力的金刚石在研磨轮旋转电机的带动下雨玻璃片的边部做相对运动，且玻璃片的流动方向与研磨轮转动方向相反，同时研磨时不断的用水进行喷洒。
4.根据权利要求1述的一种蓝玻璃红外截止滤光片的制备工艺，其特征在于：所述步骤S3中抛光时间为15-30min，且抛光原液与水的比列为1:1。
5.根据权利要求1所述的一种蓝玻璃红外截止滤光片的制备工艺，其特征在于：所述步骤S4超声波清洗液采用纯水，且超声波清洗时间为10-40min。
6.根据权利要求1所述的一种蓝玻璃红外截止滤光片的制备工艺，其特征在于：所述步骤S5中滤光膜包含有两层，分别为五氧化三钛膜和二氧化硅膜，且五氧化三钛膜的厚度为300nm,二氧化硅膜的厚度为500nm。
7.根据权利要求1所述的一种蓝玻璃红外截止滤光片的制备工艺，其特征在于：所述步骤S7中晶体利用超声波清洗机中进行再次清洗的时间为10-15min。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011538847.7A CN112649912A (zh) | 2020-12-23 | 2020-12-23 | 一种蓝玻璃红外截止滤光片的制备工艺 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011538847.7A CN112649912A (zh) | 2020-12-23 | 2020-12-23 | 一种蓝玻璃红外截止滤光片的制备工艺 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112649912A true CN112649912A (zh) | 2021-04-13 |
Family
ID=75359828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011538847.7A Pending CN112649912A (zh) | 2020-12-23 | 2020-12-23 | 一种蓝玻璃红外截止滤光片的制备工艺 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112649912A (zh) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114019599A (zh) * | 2021-10-29 | 2022-02-08 | 浙江京浜光电科技有限公司 | 一种低应力蓝玻璃红外截止滤光片及其生产方法 |
| CN114289436A (zh) * | 2021-12-20 | 2022-04-08 | 江苏美伦光电有限公司 | 一种高硼硅玻璃滤光片加工方法及装置 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104977638A (zh) * | 2015-06-19 | 2015-10-14 | 江苏苏创光学器材有限公司 | 红外截止滤光片的制备方法 |
| CN108802883A (zh) * | 2018-06-06 | 2018-11-13 | 湖北五方光电股份有限公司 | 一种低反射红外截止滤光片的制备技术 |
| CN208537758U (zh) * | 2018-08-02 | 2019-02-22 | 利基光电科技(九江)有限公司 | 蓝玻璃滤光片 |
-
2020
- 2020-12-23 CN CN202011538847.7A patent/CN112649912A/zh active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104977638A (zh) * | 2015-06-19 | 2015-10-14 | 江苏苏创光学器材有限公司 | 红外截止滤光片的制备方法 |
| CN108802883A (zh) * | 2018-06-06 | 2018-11-13 | 湖北五方光电股份有限公司 | 一种低反射红外截止滤光片的制备技术 |
| CN208537758U (zh) * | 2018-08-02 | 2019-02-22 | 利基光电科技(九江)有限公司 | 蓝玻璃滤光片 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114019599A (zh) * | 2021-10-29 | 2022-02-08 | 浙江京浜光电科技有限公司 | 一种低应力蓝玻璃红外截止滤光片及其生产方法 |
| CN114289436A (zh) * | 2021-12-20 | 2022-04-08 | 江苏美伦光电有限公司 | 一种高硼硅玻璃滤光片加工方法及装置 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112649912A (zh) | 一种蓝玻璃红外截止滤光片的制备工艺 | |
| CN1226216C (zh) | 用于制备便于修整的玻璃片的方法,由此获得的玻璃片及该修整方法 | |
| US8063999B2 (en) | Glass polarizer and manufacturing method thereof | |
| CN106739037A (zh) | 一种光学镜头镜片冷加工工艺 | |
| CN103064136A (zh) | 用于集成成像3d显示的组合微透镜阵列及其制作方法 | |
| CN1766679A (zh) | 起偏器及其制造方法 | |
| CN102749722A (zh) | 一种镜片及其图样镀膜制造方法 | |
| CN1165800C (zh) | 电光装置及投影仪 | |
| CN103376489A (zh) | 蓝玻璃红外截止滤光片制备方法 | |
| CN106940456A (zh) | 一种大张角玻璃镜片的减反膜及其制作工艺 | |
| CN207888068U (zh) | 一种蓝宝石pvd膜的激光去除装置 | |
| JP4421142B2 (ja) | 光学デバイスおよび光学デバイスの製造方法 | |
| US10324241B2 (en) | Crystal coating optical low pass filter and manufacturing method thereof | |
| CN104977638A (zh) | 红外截止滤光片的制备方法 | |
| TW202246806A (zh) | 玻璃及塑料混合透鏡 | |
| CN1259187C (zh) | 一种偏光光学镜片复合体的加工方法 | |
| CN108749049A (zh) | 一种模具拓印式防炫光镜片及其制备方法 | |
| JP5168724B2 (ja) | 透明多結晶スピネル基板とその製造方法、および電気光学装置 | |
| CN110257773B (zh) | 一种用于蒸镀高吸收膜层的蒸镀材料及其制备方法 | |
| US2854335A (en) | Photographic transparencies and method of making the same | |
| JP2013105846A (ja) | 防曇性膜を有する光学部品、半導体装置 | |
| CN111061025A (zh) | 一种光学镜头的胶合固化工艺 | |
| CN208654446U (zh) | 一种车载抬头显示装置的纵向离轴三反光学*** | |
| CN112590267A (zh) | 一种超薄变色偏光树脂镜片的制造工艺 | |
| JP2022097161A (ja) | ヘッドアップディスプレイ装置を含む光学系 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210413 |
|
| RJ01 | Rejection of invention patent application after publication |