CN113352610A - Printer with a movable platen - Google Patents

Printer with a movable platen Download PDF

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Publication number
CN113352610A
CN113352610A CN202110709542.6A CN202110709542A CN113352610A CN 113352610 A CN113352610 A CN 113352610A CN 202110709542 A CN202110709542 A CN 202110709542A CN 113352610 A CN113352610 A CN 113352610A
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CN
China
Prior art keywords
light
base
source module
light source
screen
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
Application number
CN202110709542.6A
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Chinese (zh)
Inventor
付冬初
邓新桥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Anycubic Technology Co Ltd
Original Assignee
Shenzhen Anycubic Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shenzhen Anycubic Technology Co Ltd filed Critical Shenzhen Anycubic Technology Co Ltd
Priority to CN202310133210.7A priority Critical patent/CN116461092A/en
Priority to CN202110709542.6A priority patent/CN113352610A/en
Publication of CN113352610A publication Critical patent/CN113352610A/en
Priority to PCT/CN2022/105683 priority patent/WO2022268232A1/en
Priority to US18/131,371 priority patent/US20230271384A1/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/264—Arrangements for irradiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Optics & Photonics (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)

Abstract

The application discloses a printer, which comprises a base, a light source module, an optical refractor and a screen, wherein the light source module and the optical refractor are arranged on the base, and the light source module and the screen are arranged corresponding to the optical refractor; the light source module comprises a light emitting piece and a lens which are integrally arranged, light rays emitted by the light emitting piece penetrate through the lens and are converted into light rays with fixed emission angles and uniform energy, the light rays penetrating through the lens shoot towards the optical refractor, and the light rays shoot towards the screen after being refracted by the optical refractor. Thus, the purpose of improving the verticality of the light rays emitted to the screen can be achieved.

Description

Printer with a movable platen
Technical Field
The application belongs to the technical field of printing, concretely relates to printer.
Background
In the related art, in order to ensure the printing accuracy of the photo-curing printer, it is necessary to keep the light rays emitted to the screen as parallel as possible.
Currently, the light source used in a photocuring printer is generally a funnel-shaped light source to ensure the uniformity of the light emitted to the screen. However, the angles of the light emitted by the funnel-shaped light source are relatively dispersed, so that the light emitted by the funnel-shaped light source is difficult to vertically irradiate the screen, and the printing precision of the photocuring printer is affected.
Therefore, in the related art, the light emitted to the screen has the problem of poor verticality.
Disclosure of Invention
The application aims at providing a printer, which can solve the problem of poor verticality of light rays emitted to a screen in the related art.
In order to solve the technical problem, the present application is implemented as follows:
the embodiment of the application provides a printer, which comprises a base, a light source module, an optical refractor and a screen, wherein the light source module and the optical refractor are arranged on the base, and the light source module and the screen are arranged corresponding to the optical refractor;
the light source module comprises a light emitting piece and a lens which are integrally arranged, light rays emitted by the light emitting piece penetrate through the lens and are converted into light rays with fixed emission angles and uniform energy, the light rays penetrating through the lens shoot towards the optical refractor, and the light rays shoot towards the screen after being refracted by the optical refractor.
Optionally, the light source module further includes a substrate and a lens holder, where the substrate includes a first surface and a second surface that are opposite to each other;
the lens is arranged on the first surface through the lens fixing seat, and the light-emitting piece is arranged on the first surface and positioned between the lens and the first surface.
Optionally, the light emitting member includes a chip substrate and a light emitting chip, the light emitting chip is disposed on the first surface through the chip substrate, and light emitted by the light emitting chip passes through the lens and then is converted into light with a fixed emission angle and uniform energy.
Optionally, the light source module further includes a heat sink disposed on the second surface.
Optionally, the printer still includes the slide, the light source module pass through the slide with the base is connected, just the slide with base sliding connection.
Optionally, the printer further comprises a first limiting column, a first limiting hole adapted to the first limiting column is formed in the base, and the first limiting column is assembled in the first limiting hole;
wherein, the slide can follow first spacing post is relative the base removes.
Optionally, the printer further includes a fixing seat, and the optical refractor is disposed on the base through the fixing seat;
the fixing seat is detachably connected with the base, and the optical refractor is connected with the fixing seat in a clamping mode.
Optionally, the printer further comprises a second limiting column, a second limiting hole matched with the second limiting column is formed in the base, the second limiting column is assembled in the second limiting hole, and the second limiting column is used for limiting the installation position of the fixing seat on the base.
Optionally, the printer further comprises a fixing plate, the screen being disposed on the fixing plate;
the printer still includes the equipment main part, the base with the fixed plate all sets up in the equipment main part.
Optionally, the light source module and the optical refractor are located between the base and the screen, an orthographic projection of the optical refractor on a first plane is at least partially overlapped with an orthographic projection of the screen on the first plane, and the orthographic projection of the light source module on the first plane is spaced from the orthographic projection of the screen on the first plane;
the first plane is a plane where the bearing surface of the base is located.
In the embodiment of this application, through the light source module that adopts illuminating part and lens including integrated setting to make the light source module can launch the fixed and even light of energy of emission angle, and the light of light source module transmission can convert the light of vertical shooting screen into after the refraction face refraction of concave curved surface, even the light that makes the light source module transmission can the vertical shooting screen, and then reaches the purpose that improves the straightness that hangs down of the light of shooting screen.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural diagram of a printer according to an embodiment of the present disclosure;
fig. 2 is a second schematic structural diagram of a printer according to an embodiment of the present application;
FIG. 3 is a schematic structural diagram of an optical refractor according to an embodiment of the present disclosure;
FIG. 4 is a second schematic structural diagram of an optical refractor according to an embodiment of the present disclosure;
fig. 5 is an exploded view of a light source module according to an embodiment of the present disclosure.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present application and are not to be construed as limiting the present application, and features in the following embodiments and embodiments may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The features of the terms first and second in the description and in the claims of the present application may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specified. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
As shown in fig. 1 to 5, an embodiment of the present application provides a printer, which may be a photo-curing printer, and the printer includes a base 10, a light source module 20, an optical refractor 30, and a screen 40, wherein the light source module 20 and the optical refractor 30 are both disposed on the base 10, and the light source module 20 and the screen 40 are both disposed corresponding to the optical refractor 30;
the refracting surface of the optical refractor 30 is a concave curved surface, the light source module 20 includes an integrally disposed light emitting element 21 and a lens 22, light emitted by the light emitting element 21 passes through the lens 22 and then is converted into light with a fixed emission angle and uniform energy, and the light passing through the lens 22 is emitted to the optical refractor 30 and is emitted to the screen 40 vertically after being refracted by the optical refractor 30.
In this embodiment, through adopting the light source module 20 including the integrated illuminating part 21 and the lens 22 that set up to make light source module 20 can launch the fixed and even light of energy of emission angle, and the light that light source module 20 emitted can convert the perpendicular light of directive screen 40 into after the refraction face refraction of concave curved surface, namely make the light that light source module 20 emitted can perpendicular directive screen 40, and then reach the mesh that improves the straightness that hangs down of the light of directive screen 40.
Moreover, the light emitted from the light source module 20 has the characteristic of uniform energy, so that the problem of energy deviation of the light emitted to the screen 40 is solved, and the purpose of improving the printing precision and the printing effect of the printer is achieved.
It will be appreciated that the screen 40 may be an LCD screen and is used to transmit light and display a printed image.
As shown in fig. 3 and 4, the concave surface of the optical refractor 30 may be a concave spherical surface or a concave ellipsoidal surface, and the concave parameter thereof is associated with the optical parameter of the lens 22, i.e., the concave parameter of the concave surface may be set according to the optical parameter of the lens 22.
As shown in fig. 2, the light emitted from the lens 22 is defined as a type a light, that is, the light emitted from the light emitting element 21 can be converted into a type a light after passing through the lens 22, that is, the light is converted into a light with a fixed emission angle and uniform energy; and, the light refracted by the optical refractor 30 is defined as a B-type light, that is, the a-type light is refracted by the optical refractor 30 and then converted into the B-type light, that is, the B-type light can be converted into the light vertically emitted to the screen 40, thereby achieving the purpose of improving the verticality of the light emitted to the screen 40.
The printing area of the screen 40 is determined by the irradiation range of the light source module 20 on the screen 40, and the farther the light source module 20 is from the screen 40, the larger the irradiation range of the light source module 20 on the screen 40. For example, in the case where the printing area of the screen 40 is set to S, that is, the irradiation range of the light source module 20 on the screen 40 is set to S, the distance between the light source module 20 and the screen 40 needs to be set to L in order to meet the printing requirement of the printer.
In this application, because the light that light source module 20 jetted out need be refracted through optical refractor 30, therefore the transmission path of light between light source module 20 and screen 40 is divided into two sections, transmission path section before refracting and the transmission path section after refracting promptly, the light that jets out from light source module 20 has been divided into A type light and B type light promptly, and the transmission path length of A type light and the transmission path length sum of B type light need be equal to L to satisfy the printing demand of printer.
As shown in fig. 2, the length of the contour line of the type a ray is L1, and the length of the contour line of the type B ray is L2, i.e., the sum of L1 and L2 needs to be equal to L to satisfy the printing requirements of the printer.
In addition, the values of L1 and L2 can be flexibly set according to the size requirement of the printer so as to meet the actual design requirement. For example, when a low-profile printer needs to be installed, the value of L2 can be reduced, thereby achieving the purpose of reducing the height of the printer.
In the process of manufacturing the optical refractor 30, a plate may be provided first, then an inner concave curved surface is formed on the plate, and finally an optical reflective layer is disposed on the inner concave curved surface to obtain the optical refractor. The optical reflection layer can be deposited on the concave curved surface in an electroplating mode.
Optionally, as shown in fig. 5, the light source module 20 further includes a substrate 23 and a lens fixing base 24, where the substrate 23 includes a first surface (not shown) and a second surface (not shown) that are opposite to each other;
wherein the lens 22 is disposed on the first surface through the lens fixing seat 24, and the light emitting member 21 is disposed on the first surface and between the lens 22 and the first surface.
In this embodiment, the lens fixing base 24 may be covered on the first surface, and an accommodating cavity may be formed between the lens fixing base 24 and the first surface, and the light emitting element 21 may be located in the accommodating cavity, so as to realize the integrated arrangement of the light emitting element 21 and the lens 22.
In one example, the lens holder 24 is made of a light-shielding material, or the inner surface or the outer surface of the lens holder 24 is disposed on the light-shielding layer, so as to prevent the light emitted from the light-emitting member 21 from being emitted from other directions except the lens 22, and achieve the purpose of improving the light-emitting effect of the light source module 20.
Optionally, the light emitting element 21 includes a chip substrate 211 and a light emitting chip 212, the light emitting chip 212 is disposed on the first surface through the chip substrate 211, and light emitted from the light emitting chip 212 passes through the lens 22 and is converted into light with a fixed emission angle and uniform energy.
In this embodiment, the light emitting chip 212 may be a matrix light source chip, such as a COB light source chip, so that the light emitted by the light emitting element 21 has the characteristics of fixed emission angle and uniform energy.
It is understood that the light emitted from the light source module 20 in the present application may be ultraviolet light.
In addition, the light emitting member 21 may further include a chip pad 213, the light emitting chip 212 is disposed on the chip substrate 211, the chip substrate 211 is disposed on the chip pad 213, and the chip pad 213 is disposed on the first surface.
Furthermore, the light source module 20 may further include a heat sink 25, the heat sink 25 is disposed on the second surface, and the heat sink 25 is used to reduce the temperature of the light emitting element 21, so as to avoid overheating of the light emitting element 21.
Optionally, the printer further includes a sliding seat 50, the light source module 20 is connected to the base 10 through the sliding seat 50, and the sliding seat 50 is slidably connected to the base 10.
In the present embodiment, by providing the slider 50, the distance between the light source module 20 and the optical refractor 30 can be adjusted, and further, the coverage area of the optical refractor 30 facing the screen 40, that is, the printing area of the printer can be adjusted.
For example, the farther the light source module 20 is from the optical refractor 30, the larger the coverage area of the optical refractor 30 facing the screen 40 is, i.e. the larger the printing area of the printer is; the closer the light source module 20 is to the optical refractor 30, the smaller the coverage area of the optical refractor 30 to the screen 40 is, i.e. the smaller the printing area of the printer is; thereby realizing the flexible adjustment of the printing area of the printer.
Optionally, the printer further includes a first limiting post 61, the base 10 is provided with a first limiting hole (not shown) adapted to the first limiting post 61, and the first limiting post 61 is assembled in the first limiting hole;
wherein, the slide carriage 50 can move along the first position-limiting column 61 relative to the base 10.
In this embodiment, through setting up first spacing post 61, can avoid slide 50 skew to appear in the removal process, light source module 20's removal precision promptly, and then reach the purpose that promotes the printing progress of printer.
Optionally, the printer further includes a fixing seat 70, and the optical refractor 30 is disposed on the base 10 through the fixing seat 70;
wherein, the fixing base 70 is detachably connected with the base 10, and the optical refractor 30 is clamped with the fixing base 70.
In this embodiment, the optical refractor 30 is disposed on the base 10 through the fixing base 70, so that the stability of connection between the optical refractor 30 and the base 10 can be improved.
Wherein, the fixed seat 70 and the base 10 can be fixedly connected through bolts; the optical refractor 30 may be provided with a clamping strip (not shown), and the fixing base 70 may be provided with a clamping groove (not shown) adapted to the clamping strip, and the optical refractor 30 may be fixed to the fixing base 70 by clamping the clamping strip and the clamping groove.
Optionally, the printer further includes a second limiting post 62, a second limiting hole (not shown) adapted to the second limiting post 62 is disposed on the base 10, the second limiting post 62 is assembled in the second limiting hole, and the second limiting post 62 is used to limit the installation position of the fixing base 70 on the base 10.
In this embodiment, the second limit column 62 is provided to improve the mounting accuracy of the fixing base 70 on the base 10 and improve the refraction effect of the optical refractor 30.
Optionally, the printer further comprises a fixing plate 80, the screen 40 being arranged on the fixing plate 80;
the printer further includes an apparatus main body (not shown) on which the base 10 and the fixing plate 80 are provided.
Optionally, as shown in fig. 1, the light source module 20 and the optical refractive mirror 30 are located between the base 10 and the screen 40, an orthogonal projection of the optical refractive mirror 30 on the first plane at least partially coincides with an orthogonal projection of the screen 40 on the first plane, and the orthogonal projection of the light source module 20 on the first plane is spaced from the orthogonal projection of the screen 40 on the first plane;
the first plane is a plane where the base 10 is located on the bearing surface.
In this embodiment, through putting light source module 20, optics refractor 30 and screen 40 non-coaxial, be about to light source module 20, optics refractor 30 and screen 40 dislocation are put, especially with light source module 20 and screen 40 dislocation, can shorten the straight-line distance between light source module 20 to screen 40, and then reduce the overall height of printer, satisfy the miniaturized development trend of printer.
In one example, the light source module 20 and the optical refractive mirror 30 may be both disposed on the carrying surface of the base 10.
As shown in fig. 2, the optical refractor 30 may be disposed right below the screen, and the light source module 20 may be disposed right in front of the refracting surface of the optical refractor 30, so as to split the optical conduction path between the light source module 20 and the screen 40 into two segments, i.e., a pre-refracted transmission path segment L1 and a refracted transmission path segment L2, and make the sum of L1 and L2 equal to the linear distance between the light source module 20 and the screen 40, thereby reducing the overall height of the printer and satisfying the trend of miniaturization of the printer. ,
in addition, by such an arrangement, the area of the optical refractor 30 covered on the screen 40 can be increased, and the size of the printing area of the printer can be increased.
In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A printer is characterized by comprising a base, a light source module, an optical refractor and a screen, wherein the light source module and the optical refractor are arranged on the base, and the light source module and the screen are arranged corresponding to the optical refractor;
the light source module comprises a light emitting piece and a lens which are integrally arranged, light rays emitted by the light emitting piece penetrate through the lens and are converted into light rays with fixed emission angles and uniform energy, the light rays penetrating through the lens shoot towards the optical refractor, and the light rays shoot towards the screen after being refracted by the optical refractor.
2. The printer according to claim 1, wherein the light source module further comprises a substrate and a lens holder, the substrate comprises a first surface and a second surface which are opposite to each other;
the lens is arranged on the first surface through the lens fixing seat, and the light-emitting piece is arranged on the first surface and positioned between the lens and the first surface.
3. The printer according to claim 2, wherein the light emitting member includes a chip substrate and a light emitting chip, the light emitting chip is disposed on the first surface through the chip substrate, and light emitted from the light emitting chip is converted into light with a fixed emission angle and uniform energy after passing through the lens.
4. The printer of claim 2, wherein the light source module further comprises a heat sink disposed on the second surface.
5. The printer according to any one of claims 1 to 4, further comprising a carriage, wherein the light source module is connected to the base through the carriage, and the carriage is slidably connected to the base.
6. The printer according to claim 5, further comprising a first position-limiting post, wherein the base is provided with a first position-limiting hole adapted to the first position-limiting post, and the first position-limiting post is assembled in the first position-limiting hole;
wherein, the slide can follow first spacing post is relative the base removes.
7. The printer according to any one of claims 1 to 4, further comprising a holder through which the optical refractor is disposed on the base;
the fixing seat is detachably connected with the base, and the optical refractor is connected with the fixing seat in a clamping mode.
8. The printer according to claim 7, further comprising a second position-limiting post, wherein the base is provided with a second position-limiting hole adapted to the second position-limiting post, the second position-limiting post is assembled in the second position-limiting hole, and the second position-limiting post is used for limiting the installation position of the fixing seat on the base.
9. The printer according to any one of claims 1 to 4, further comprising a fixing plate on which the screen is disposed;
the printer still includes the equipment main part, the base with the fixed plate all sets up in the equipment main part.
10. The printer according to any one of claims 1 to 4, wherein the light source module and the optical refractor are located between the base and the screen, an orthographic projection of the optical refractor on a first plane is at least partially overlapped with an orthographic projection of the screen on the first plane, and the orthographic projection of the light source module on the first plane is spaced from the orthographic projection of the screen on the first plane;
the first plane is a plane where the bearing surface of the base is located.
CN202110709542.6A 2021-06-25 2021-06-25 Printer with a movable platen Pending CN113352610A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN202310133210.7A CN116461092A (en) 2021-06-25 2021-06-25 Printer with a printer body
CN202110709542.6A CN113352610A (en) 2021-06-25 2021-06-25 Printer with a movable platen
PCT/CN2022/105683 WO2022268232A1 (en) 2021-06-25 2022-07-14 Printer
US18/131,371 US20230271384A1 (en) 2021-06-25 2023-04-06 Light source assembly and printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110709542.6A CN113352610A (en) 2021-06-25 2021-06-25 Printer with a movable platen

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CN202310133210.7A Division CN116461092A (en) 2021-06-25 2021-06-25 Printer with a printer body

Publications (1)

Publication Number Publication Date
CN113352610A true CN113352610A (en) 2021-09-07

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ID=77536366

Family Applications (2)

Application Number Title Priority Date Filing Date
CN202310133210.7A Pending CN116461092A (en) 2021-06-25 2021-06-25 Printer with a printer body
CN202110709542.6A Pending CN113352610A (en) 2021-06-25 2021-06-25 Printer with a movable platen

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CN202310133210.7A Pending CN116461092A (en) 2021-06-25 2021-06-25 Printer with a printer body

Country Status (1)

Country Link
CN (2) CN116461092A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114083798A (en) * 2021-10-29 2022-02-25 深圳市纵维立方科技有限公司 Light source assembly and printer
WO2022268232A1 (en) * 2021-06-25 2022-12-29 深圳市纵维立方科技有限公司 Printer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022268232A1 (en) * 2021-06-25 2022-12-29 深圳市纵维立方科技有限公司 Printer
CN114083798A (en) * 2021-10-29 2022-02-25 深圳市纵维立方科技有限公司 Light source assembly and printer
CN114083798B (en) * 2021-10-29 2024-06-04 深圳市纵维立方科技有限公司 Light source assembly and printer

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