WO2021233072A1 - Procédé de fabrication d'un ensemble réseau - Google Patents

Procédé de fabrication d'un ensemble réseau Download PDF

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Publication number
WO2021233072A1
WO2021233072A1 PCT/CN2021/089555 CN2021089555W WO2021233072A1 WO 2021233072 A1 WO2021233072 A1 WO 2021233072A1 CN 2021089555 W CN2021089555 W CN 2021089555W WO 2021233072 A1 WO2021233072 A1 WO 2021233072A1
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WO
WIPO (PCT)
Prior art keywords
lens
lens grating
grating layer
layer
polarizer
Prior art date
Application number
PCT/CN2021/089555
Other languages
English (en)
Chinese (zh)
Inventor
刁鸿浩
黄玲溪
Original Assignee
北京芯海视界三维科技有限公司
视觉技术创投私人有限公司
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Application filed by 北京芯海视界三维科技有限公司, 视觉技术创投私人有限公司 filed Critical 北京芯海视界三维科技有限公司
Publication of WO2021233072A1 publication Critical patent/WO2021233072A1/fr

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/0006—Arrays
    • G02B3/0012—Arrays characterised by the manufacturing method
    • G02B3/0031—Replication or moulding, e.g. hot embossing, UV-casting, injection moulding
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/0006—Arrays
    • G02B3/0037—Arrays characterized by the distribution or form of lenses
    • G02B3/005—Arrays characterized by the distribution or form of lenses arranged along a single direction only, e.g. lenticular sheets
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
    • G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
    • G02B30/27—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving lenticular arrays
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1814—Diffraction gratings structurally combined with one or more further optical elements, e.g. lenses, mirrors, prisms or other diffraction gratings

Definitions

  • This application relates to the field of optical technology, for example, to a method of manufacturing a grating component.
  • gratings are widely used in the field of optics.
  • the grating is usually made separately as an independent device, and protects structures such as a protective layer used to protect the grating.
  • structures such as a protective layer used to protect the grating.
  • the embodiments of the present disclosure provide a method for manufacturing a grating component, so as to solve the technical problems of reduced accuracy and complicated processes when setting the grating.
  • the lens grating layer is directly arranged on the polarizer.
  • directly setting the lens grating layer may include:
  • the first refractive index is different from the second refractive index.
  • providing the first lens grating layer may include:
  • a first lens grating layer having at least one of a convex lens and a concave lens is provided on the polarizer.
  • providing the first lens grating layer may include:
  • a first lens grating material is arranged on the polarizer to form a first lens grating layer with concave lenses based on the set first lens grating material; wherein the first refractive index is lower than the second refractive index.
  • disposing the first lens grating material on the polarizer may include at least one of the following:
  • 3D print the first lens grating material on the polarizer.
  • providing the second lens grating layer may include:
  • a second lens grating material is coated on the first lens grating layer, and a second lens grating layer covering the concave lens is formed based on the coated second lens grating material.
  • coating the second lens grating material on the first lens grating layer may include:
  • filling the concave portion of the concave lens with the second lens grating material may include:
  • the second lens grating material after filling the concave part of the concave lens with the second lens grating material, can be coated on the first lens grating layer to make the thickness of the second lens grating layer larger than that of the first lens grating. The thickness of the layer.
  • At least one of the first lens grating material and the second lens grating material may include water glue.
  • providing the first lens grating layer may include:
  • a third lens grating material is arranged on the polarizer to form a third lens grating layer with convex lenses based on the set third lens grating material; wherein the first refractive index is higher than the second refractive index.
  • disposing the third lens grating material on the polarizer may include at least one of the following:
  • 3D print the third lens grating material on the polarizer.
  • providing the second lens grating layer may include:
  • a fourth lens grating material is coated on the third lens grating layer, and a fourth lens grating layer covering the convex lens is formed based on the coated fourth lens grating material.
  • coating the fourth lens grating material on the third lens grating layer may include:
  • the fourth lens grating material is used to fill the space between adjacent convex lenses in the convex lens.
  • filling the space between adjacent convex lenses in the convex lens with the fourth lens grating material may include:
  • the fourth lens grating material is used to partially fill or fill the space between adjacent convex lenses in the convex lens.
  • the fourth lens grating material can be coated on the third lens grating layer to make the fourth lens grating layer The thickness of is greater than the thickness of the third lens grating layer.
  • imprinting may include nanoimprinting.
  • At least one of the third lens grating material and the fourth lens grating material may include water glue.
  • setting the first lens grating layer may include: coating water glue on the polarizer, and forming the first lens grating layer based on the coated water glue.
  • providing the second lens grating layer may include: performing an embossing process on the first lens grating layer to form the second lens grating layer.
  • the first lens grating layer may also be cured.
  • the second lens grating layer may also be cured.
  • a protective film can also be laid on the lens grating layer.
  • laying the protective film may include: attaching the protective film to the lens grating layer by means of sheet-on-sticking or roll-on-sticking.
  • the provided polarizer may be an independent device that is not provided in other devices.
  • the lens grating layer on the polarizer By directly setting the lens grating layer on the polarizer to fabricate the grating component, the situation that the grating is arranged on other devices as an independent device is avoided, which is beneficial to improve the accuracy of the grating setting and can simplify the process.
  • FIGS. 1A and 1B are schematic diagrams of the principle of making a grating component provided by an embodiment of the present disclosure
  • FIG. 2 is a schematic diagram of the principle of setting a lens grating layer provided by an embodiment of the present disclosure
  • 3A and 3B are schematic diagrams of the principle of setting a first lens grating layer provided by an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of another principle of setting a first lens grating layer provided by an embodiment of the present disclosure
  • 5A and 5B are schematic diagrams of the principle of setting a first lens grating material provided by an embodiment of the present disclosure
  • FIG. 6 is a schematic diagram of the principle of setting a second lens grating layer provided by an embodiment of the present disclosure
  • FIG. 7 is a schematic diagram of the principle of coating a second lens grating material provided by an embodiment of the present disclosure.
  • FIGS. 8A and 8B are schematic diagrams of filling the concave part of a concave lens provided by an embodiment of the present disclosure
  • FIG. 9 is another schematic diagram of the principle of coating a second lens grating material provided by an embodiment of the present disclosure.
  • FIG. 10 is a schematic diagram of another principle of setting a first lens grating layer provided by an embodiment of the present disclosure.
  • FIGS. 11A and 11B are schematic diagrams of the principle of setting a third lens grating material provided by an embodiment of the present disclosure.
  • FIG. 12 is a schematic diagram of another principle of setting a second lens grating layer provided by an embodiment of the present disclosure.
  • FIG. 13 is a schematic diagram of the principle of coating a fourth lens grating material provided by an embodiment of the present disclosure.
  • 14A and 14B are schematic diagrams of the principle of filling the space between adjacent convex lenses in a convex lens provided by an embodiment of the present disclosure
  • FIG. 15 is a schematic diagram of the principle of coating a fourth lens grating material provided by an embodiment of the present disclosure.
  • FIG. 16A, FIG. 16B, FIG. 16C, and FIG. 16D are schematic diagrams of another principle of providing a first lens grating layer and a second lens grating layer according to an embodiment of the present disclosure
  • 17 is a schematic diagram of the principle of curing the first lens grating layer provided by an embodiment of the present disclosure.
  • 19 is a schematic diagram of the principle of laying a protective film on the lens grating layer provided by an embodiment of the present disclosure
  • 20A and 20B are schematic diagrams of the principle of attaching a protective film to a lens grating layer provided by an embodiment of the present disclosure
  • FIG. 21 is a schematic diagram of the principle of providing a polarizer provided by an embodiment of the present disclosure.
  • an embodiment of the present disclosure provides a method for manufacturing a grating assembly 100.
  • the method for manufacturing a grating component provided by an embodiment of the present disclosure may include:
  • the lens grating layer 130 may be directly disposed on the polarizer 110.
  • directly disposing the lens grating layer 130 may include:
  • a first lens grating layer 131 having a first refractive index is provided on the polarizer 110;
  • the first refractive index is different from the second refractive index.
  • disposing the first lens grating layer 131 may include:
  • a first lens grating layer 131 having at least one of a convex lens 150 and a concave lens 170 is provided on the polarizer 110.
  • the first lens grating layer 131 with the convex lens 150 may be provided on the polarizer 110.
  • the convex lens 150 of the first lens grating layer 131 may include at least one of a cylindrical convex lens and a spherical convex lens.
  • the cylindrical convex lens can be arranged regularly, for example, arranged in an array in a parallel arrangement or the like; or, it can also be arranged irregularly.
  • the convex lens 150 of the first lens grating layer 131 includes a spherical convex lens
  • the spherical convex lens can be arranged regularly, for example: arranged in an array in a circular, elliptical, triangular, row and column arrangement, etc.; or, it can also be arranged irregularly .
  • the convex lens 150 of the first lens grating layer 131 includes a cylindrical convex lens and a spherical convex lens
  • at least one of the cylindrical convex lens and the spherical convex lens can be arranged regularly or irregularly; the cylindrical convex lens and the spherical convex lens can also be arranged regularly.
  • the cylindrical convex lens and the spherical convex lens are arranged staggered, and they can also be arranged irregularly.
  • the type for example: lenticular lens, spherical convex lens
  • setting style for example: regular setting, irregular setting
  • the convex lens 150 included in the first lens grating layer 131 can be determined according to actual conditions such as process requirements.
  • the first lens grating layer 131 with the concave lens 170 may be provided on the polarizer 110.
  • the concave lens 170 of the first lens grating layer 131 may include at least one of a cylindrical concave lens and a spherical concave lens.
  • the cylindrical concave lens may be arranged regularly, for example, arranged in an array in a parallel arrangement or the like; or, it may also be arranged irregularly.
  • the concave lens 170 of the first lens grating layer 131 includes a spherical concave lens
  • the spherical concave lens can be arranged regularly, for example: arranged in an array in a circular, elliptical, triangular, row and column arrangement, etc.; or, it can also be arranged irregularly .
  • the concave lens 170 of the first lens grating layer 131 includes a cylindrical concave lens and a spherical concave lens
  • at least one of the cylindrical concave lens and the spherical concave lens can be arranged regularly or irregularly; the cylindrical concave lens and the spherical concave lens can also be arranged regularly.
  • the cylindrical concave lens and the spherical concave lens are arranged staggered, and they can also be arranged irregularly.
  • the type of concave lens 170 contained in the first lens grating layer 131 for example: cylindrical concave lens, spherical concave lens
  • the setting style for example: regular setting, irregular setting
  • disposing the first lens grating layer 131 may include:
  • a first lens grating material 1311 is provided on the polarizer 110 to form a first lens grating layer 131 having a concave lens 170 based on the provided first lens grating material 1311; wherein the first refractive index is lower than the second refractive index.
  • the first lens grating material 1311 is provided on the polarizer 110, which may include at least one of the following:
  • the first lens grating material 1311 is 3D printed on the polarizer 110.
  • the first lens grating material 1311 may be coated on the polarizer 110, and then the first lens grating material 1311 may be imprinted, so that the imprinted first lens
  • the grating material 1311 can form the first lens grating layer 131 having the concave lens 170.
  • the first lens grating material 1311 may be 3D printed on the polarizer 110, so that the 3D printed first lens grating material 1311 can form the first lens grating layer 131 with the concave lens 170 .
  • disposing the second lens grating layer 132 may include:
  • a second lens grating material 1321 is coated on the first lens grating layer 131, and a second lens grating layer 132 covering the concave lens 170 is formed based on the coated second lens grating material 1321.
  • coating the second lens grating material 1321 on the first lens grating layer 131 may include:
  • the concave portion 171 of the concave lens 170 is filled with the second lens grating material 1321.
  • filling the concave portion 171 of the concave lens 170 with the second lens grating material 1321 may include:
  • the concave portion 171 of the concave lens 170 is partially filled or filled with the second lens grating material 1321.
  • the concave portion 171 of the concave lens 170 may be partially filled with the second lens grating material 1321.
  • the concave portion 171 of the concave lens 170 may be filled with a second lens grating material 1321.
  • the concave portion 171 of the concave lens 170 may be partially filled or filled according to actual conditions such as process requirements.
  • the second lens grating material 1321 can be coated on the first lens grating layer 131 to make the second lens
  • the thickness T2 of the grating layer 132 is greater than the thickness T1 of the first lens grating layer 131.
  • the thickness T2 of the second lens grating material 1321 of the second lens grating layer 132 may be used as the thickness of the second lens grating layer 132.
  • the thickness T21 of the second lens grating layer 132 other than the thickness T1 of the first lens grating layer 131 may also be used as the thickness of the second lens grating layer 132 according to actual conditions such as process requirements.
  • the thickness of the second lens grating layer 132 may be the same as or different from the thickness of the first lens grating layer 131, for example: the second lens grating layer 132
  • the thickness of is greater than the thickness of the first lens grating layer 131, or the thickness of the second lens grating layer 132 is equal to the thickness of the first lens grating layer 131, or the thickness of the second lens grating layer 132 is smaller than the thickness of the first lens grating layer 131.
  • At least one of the first lens grating material 1311 and the second lens grating material 1321 may include a water glue 190.
  • disposing the first lens grating layer 131 may include:
  • a third lens grating material 1331 is provided on the polarizer 110 to form a third lens grating layer 133 having a convex lens 150 based on the provided third lens grating material 1331; wherein the first refractive index is higher than the second refractive index.
  • the third lens grating material 1331 is provided on the polarizer 110, which may include at least one of the following:
  • the third lens grating material 1331 is 3D printed on the polarizer 110.
  • the third lens grating material 1331 may be coated on the polarizer 110, and then the third lens grating material 1331 may be imprinted to make the imprinted third lens
  • the grating material 1331 can form a third lens grating layer 133 having a convex lens 150.
  • a third lens grating material 1331 may be 3D printed on the polarizer 110, so that the 3D printed third lens grating material 1331 can form a third lens grating layer 133 with convex lenses 150 .
  • disposing the second lens grating layer 132 may include:
  • a fourth lens grating material 1341 is coated on the third lens grating layer 133, and a fourth lens grating layer 134 covering the convex lens 150 is formed based on the coated fourth lens grating material 1341.
  • coating the fourth lens grating material 1341 on the third lens grating layer 133 may include:
  • the fourth lens grating material 1341 is used to fill the space 151 between the adjacent convex lenses 150 in the convex lens 150.
  • the space 151 between the adjacent convex lenses 150 in the convex lens 150 is shown as an ellipse dashed circle in FIG. 13.
  • the space 151 between the adjacent convex lenses 150 in the convex lens 150 may also include a part other than the elliptical dotted line shown in FIG. 13, as long as this part belongs to the space 151 between the adjacent convex lenses 150 in the convex lens 150. Can.
  • filling the space 151 between adjacent convex lenses 150 in the convex lens 150 with the fourth lens grating material 1341 may include:
  • the fourth lens grating material 1341 is used to partially fill or fill the space 151 between the adjacent convex lenses 150 in the convex lens 150.
  • the space 151 between adjacent convex lenses 150 in the convex lens 150 may be partially filled with the fourth lens grating material 1341.
  • a fourth lens grating material 1341 may be used to fill the space 151 between adjacent convex lenses 150 in the convex lens 150.
  • it may be determined to partially fill or fill the space 151 between adjacent convex lenses 150 in the convex lens 150 according to actual conditions such as process requirements.
  • the fourth lens can be coated on the third lens grating layer 133.
  • the grating material 1341 makes the thickness T4 of the fourth lens grating layer 134 greater than the thickness T3 of the third lens grating layer 133.
  • the thickness T4 of the fourth lens grating material 1341 of the fourth lens grating layer 134 may be used as the thickness of the fourth lens grating layer 134.
  • the thickness T41 of the fourth lens grating layer 134 other than the thickness T3 of the third lens grating layer 133 may also be used as the thickness of the fourth lens grating layer 134 according to actual conditions such as process requirements.
  • the thickness of the fourth lens grating layer 134 may be the same as or different from the thickness of the third lens grating layer 133, for example: the fourth lens grating layer 134
  • the thickness of is greater than the thickness of the third lens grating layer 133, or the thickness of the fourth lens grating layer 134 is equal to the thickness of the third lens grating layer 133, or the thickness of the fourth lens grating layer 134 is smaller than the thickness of the third lens grating layer 133.
  • imprinting may include nanoimprinting.
  • etching may also be used to process the lens grating material to form the lens grating layer 130.
  • At least one of the third lens grating material 1331 and the fourth lens grating material 1341 may include water glue 190.
  • disposing the first lens grating layer 131 may include: coating a water glue 190 on the polarizer 110, and forming a second lens based on the coated water glue 190 A lens grating layer 131.
  • disposing the second lens grating layer 132 may include: performing an embossing process on the first lens grating layer 131 to form the second lens grating layer 132.
  • a water glue 190 may be coated on the polarizer 110 to form a second film on the polarizer 110 based on the coated water glue 190 A lens grating layer 131.
  • the second lens grating layer 132 may be stamped onto the first lens grating layer 131 to form the second lens grating layer 132 disposed on the first lens grating layer 131.
  • the second lens grating layer 132 embossed on the first lens grating layer 131 may have a corresponding lens shape, for example: at least one of a convex lens 150 and a concave lens 170 kind.
  • the second lens grating layer 132 embossed to the first lens grating layer 131 has convex lenses 150.
  • a first lens grating layer 131 having a concave lens shape and a second lens grating layer having a convex lens 150 and disposed on the first lens grating layer 131 can be formed 132.
  • the second refractive index of the second lens grating layer 132 may be greater than the first refractive index of the first lens grating layer 131;
  • the second lens grating layer 132 embossed to the first lens grating layer 131 has a concave lens 170.
  • a first lens grating layer 131 having a convex lens shape and a second lens grating layer having a concave lens 170 and disposed on the first lens grating layer 131 can be formed 132.
  • the second refractive index of the second lens grating layer 132 may be smaller than the first refractive index of the first lens grating layer 131.
  • the relationship between the first refractive index of the first lens grating layer 131 and the second refractive index of the second lens grating layer 132 can be determined according to actual conditions such as process requirements, for example: according to actual conditions such as process requirements Determine that the first refractive index of the first lens grating layer 131 is greater than the second refractive index of the second lens grating layer 132, or determine that the first refractive index of the first lens grating layer 131 is smaller than the second lens grating layer according to actual conditions such as process requirements 132 second refractive index.
  • the first lens grating layer 131 may also be cured.
  • the second lens grating layer 132 may also be cured.
  • a protective film 210 such as a PET film, can also be laid on the lens grating layer 130.
  • laying the protective film 210 may include: attaching the protective film 210 to the lens grating layer 130 by means of sheet-to-sticking or roll-to-rolling.
  • the protective film 210 may be attached to the lens grating layer 130 by means of sheet-to-layer attachment.
  • the protective film 210 can be attached to the lens grating layer 130 by means of roll-to-roll bonding.
  • the protective film 210 can be attached to the lens grating layer 130 by means of sheet-to-sticking or roll-to-rolling to stick to the lens grating layer 130 according to actual conditions such as process requirements.
  • the provided polarizer 110 may be an independent device that is not provided in other devices.
  • the provided polarizer 110 may not include a protective film 210 and other structures that are not related to the polarizing function of the polarizer 110.
  • the grating assembly formed based on the above description can be set in display devices such as liquid crystal display devices, 3D display devices, etc., such as display modules, display screens, displays, etc.
  • the grating component without a protective film can be set on the display device first, and then the protective film can be provided on the grating component; or, the protective film can be provided on the grating component first, and then the grating component provided with the protective film Set in the display device.
  • the lens whether the lens includes a cylindrical lens (for example: a cylindrical convex lens, a cylindrical concave lens), a spherical lens (for example: a spherical convex lens, a spherical concave lens) or has other shapes
  • at least one curve of the lens surface may be a circle in a macroscopic view. Shaped or non-circular, for example: elliptical, hyperbolic, parabolic, etc.
  • at least one curve on the surface of the lens may be in a non-circular shape such as a polygon in a microscopic view.
  • the shape of the lens may be determined according to actual conditions such as process requirements, for example: the shape of the surface of the lens.
  • the grating component is manufactured by directly setting the lens grating layer on the polarizer, which avoids the situation that the grating is installed on other devices as an independent device, which is beneficial to improve the accuracy of grating setting and can simplify Craft.
  • the first element can be called the second element, and similarly, the second element can be called the first element, as long as all occurrences of the "first element” are renamed consistently and all occurrences "Second component” can be renamed consistently.
  • the first element and the second element are both elements, but they may not be the same element.
  • the terms used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and claims, unless the context clearly indicates, the singular forms "a” (a), “an” (an) and “the” (the) are intended to also include plural forms .
  • the term “and/or” as used in this application refers to any and all possible combinations that include one or more of the associated lists.
  • the term “comprise” and its variants “comprises” and/or including (comprising) and the like refer to the stated features, wholes, steps, operations, elements, and/or The existence of components does not exclude the existence or addition of one or more other features, wholes, steps, operations, elements, components, and/or groups of these. If there are no more restrictions, the element defined by the sentence “including a" does not exclude the existence of other identical elements in the process, method, or device that includes the element.
  • each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referred to each other.
  • the relevant parts can be referred to the description of the method parts.
  • the disclosed methods and products can be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of units may only be a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to implement this embodiment.
  • the functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Polarising Elements (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)

Abstract

L'invention concerne un procédé de fabrication d'un ensemble de réseau (100), consistant : à fournir un polariseur (110); et à fournir directement une couche de réseau à lentilles (130) sur le polariseur (110). Une couche de réseau à lentilles (130) est directement disposée sur un polariseur (110) pour fabriquer un ensemble réseau (100), de manière à éviter les situations où le réseau est disposé sur d'autres dispositifs comme dispositif indépendant, ce qui facilite l'amélioration de la précision de fourniture du réseau, et la simplification du processus.
PCT/CN2021/089555 2020-05-22 2021-04-25 Procédé de fabrication d'un ensemble réseau WO2021233072A1 (fr)

Applications Claiming Priority (2)

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CN202010440099.2A CN113703079A (zh) 2020-05-22 2020-05-22 制作光栅组件的方法
CN202010440099.2 2020-05-22

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WO2021233072A1 true WO2021233072A1 (fr) 2021-11-25

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