Multi-region adjustable optical performance reflector and manufacturing method thereof

Abstract

The invention relates to a manufacturing method of a multi-region reflector with adjustable optical performance. According to the manufacturing method, a multi-region windowing reflector product with adjustable optical performance is obtained through the procedures of base material cleaning, AR plating on an A surface, AR plating on a B surface, peelable glue printing on the A surface, peelable glue printing on the B surface, cleaning, HR plating on the A surface, BL plating on the B surface, glue removing cleaning, laser cutting and the like. Compared with the prior art, the invention has the advantages of abundant product functions, stable performance, high surface quality and the like.

Description

Technical Field

[0001] The invention relates to the technical field of reflector preparation, and in particular to a multi-region optical performance adjustable reflector and a manufacturing method thereof. Background Art

[0002] Windowed reflectors are a type of reflectors, which are widely used in many fields. Common application scenarios include but are not limited to the following aspects. For example, optical imaging: in projectors, cameras and other equipment, it is used to adjust the light path and improve the imaging quality; laser systems: in various types of lasers, it plays a role in reflecting or manipulating lasers, which helps to build laser resonant cavities, adjust the direction and size of laser beams, etc.; lighting engineering: by reflecting light to achieve specific lighting effects and light distribution; life sciences and biomedicine: such as in medical equipment, it is used for observation and detection, such as observing the fundus in ophthalmological examinations, and assisting in observing oral conditions in dental treatments. However, the current window reflectors have the following defects: 1. Most of the reflectors on the market currently have a single optical function, but as the functions of products become increasingly rich, different areas of the reflectors are required to have different optical functions; 2. The current reflectors use yellow light protective glue to achieve regional coating, but this process is affected by the degumming environment when removing the yellow light protective glue, which will cause damage to the product film layer, thereby affecting the optical performance of the product; 3. The back of the current reflector products all use printed black ink as the substrate, but because the high-reflective film layer coated on the front of the product is thick, it is affected by the stress of the film layer, resulting in poor product surface shape. Summary of the invention

[0003] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and provide a multi-region adjustable optical performance reflector and a manufacturing method thereof.

[0004] The purpose of the present invention can be achieved by the following technical solutions:

[0005] A method for manufacturing a multi-region adjustable optical performance reflector, the manufacturing method comprising the following steps:

[0006] 1) Substrate cleaning: Use an ultrasonic cleaner and chemical cleaning agents to clean the dirt remaining on the surface of the substrate. After cleaning, use a centrifugal dryer and bake at 65°C for 20 minutes to remove surface moisture and obtain a glass substrate with a clean surface;

[0007] 2) AR coating on A surface: One side of the glass substrate is selected as the A surface, and an evaporation coating machine is used. Under vacuum conditions, two coating materials, silicon oxide and titanium oxide, are bombarded by ion source energy according to the set film system program to form an AR film on the surface of the glass substrate by physical vapor deposition;

[0008] 3) AR coating on the B side: Take the reverse side of the A side as the B side, repeat the operation in 2) and coat a layer of AR film on the B side as well;

[0009] 4) Print peelable adhesive on side A: Use precision steel screen printing technology to print a layer of peelable adhesive on the designated area of ​​side A;

[0010] 5) Printing peelable adhesive on side B: Repeat the operation in 4) to print a layer of peelable adhesive in the window area of ​​side B;

[0011] 6) Cleaning: Use an ultrasonic cleaner and chemical cleaning agent to clean the dirt remaining on the surface of the glass substrate;

[0012] 7) HR coating on the A surface: Silicon hydride and silicon dioxide are selected as coating materials, and a sputtering coating machine is used. Under vacuum conditions, ICP energy bombardment, the two coating materials of silicon hydride and silicon oxide are alternately sputtered on the A surface of the glass substrate according to the set film system program under the reaction of chemical vapor deposition to form a layer of HR film;

[0013] 8) BL coating on the B surface: Silicon hydride, silicon dioxide and silicon nitride are selected as coating materials, and a sputtering coating machine is used to sputter a layer of BL film on the B surface of the glass substrate by chemical vapor deposition under vacuum conditions;

[0014] 9) Debonding and cleaning: Place the coated products into a fixture, and soak them together with the fixture in thinner water at room temperature for 4 hours to fully soften the peelable glue and black ink, and then put them into an ultrasonic cleaning machine to remove them through ultrasonic oscillation to obtain the debonded products;

[0015] 10) Laser cutting: After the laser beam is focused by a lens, the focus of the laser beam is positioned at the cutting position of the product obtained in 9), the shape and size of the product are set by the program software, and the required product shape and specifications are obtained by cutting. After cutting, the edge waste is removed to obtain the final window reflector product.

[0016] Furthermore, the current power of the ultrasonic cleaning machine in 1) is 3A, the pH value of the chemical cleaning agent is 8±1, and the ultrasonic cleaning time is 30 minutes.

[0017] Further, the 4) is specifically:

[0018] a. Print a layer of black ink in the window area of ​​side A. The printing size of the black ink is 0.2mm smaller than the size of the window on one side, and no curing agent is added to the ink. After printing, bake at 150℃ for 20 minutes to initially cure the black ink;

[0019] b. Print a layer of peelable glue on the black ink. Stir for 30 minutes before printing to expel all bubbles in the peelable glue to ensure printing flatness. The printing size should be consistent with the window hole size. After printing, bake at 180℃ for 60 minutes to completely solidify the ink and peelable glue.

[0020] Furthermore, the shapes and sizes of the window areas on the A side and the B side are inconsistent, and can be customized separately through the steel mesh films on both sides.

[0021] A multi-region adjustable optical performance reflector, the reflector is manufactured according to the manufacturing method, and the reflector is a windowed reflector.

[0022] Compared with the prior art, the present invention has the following advantages:

[0023] (1) Rich product functions: The present invention uses customized patterns on steel mesh films and innovatively introduces a peelable adhesive process. The pattern is printed on a specified area on the product surface through a precision steel mesh printing process. After the film layer is plated, the peelable adhesive is removed to achieve different film layers stacked in different areas. This allows different optical properties to be achieved in different areas of the same product, thereby improving the richness of product functions.

[0024] (2) Stable product performance: The peelable adhesive process of the present invention uses black ink without a curing agent as the adhesive between the glass and the peelable adhesive. The peelable adhesive can be removed by soaking in thinner under mild conditions, avoiding the problem of corrosion of the film layer when using strong alkali to remove the adhesive in the traditional process, thereby making the optical performance of the product stable.

[0025] (3) Improving product surface quality: The present invention replaces the traditional printed black ink as the substrate by coating a BL film (absorption film) on the back side (B side) of the product. The optical performance of the absorption film is more stable than that of the ink. At the same time, it can neutralize the film stress of the HR film (high reflection film) on the front side, thereby significantly improving the product surface quality and improving the resolution in the product application scenario. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A flow chart of the manufacturing method provided by the present invention;

[0027] Figure 2 This is a schematic structural diagram of a window reflector provided by the present invention. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example

[0031] like Figure 1 As shown, a method for manufacturing a multi-region adjustable optical performance reflector, the manufacturing method comprises the following steps:

[0032] 1) Substrate cleaning: Use an ultrasonic cleaner and chemical cleaning agents to clean the dirt remaining on the surface of the substrate. After cleaning, use a centrifugal dryer and bake at 65°C for 20 minutes to remove surface moisture and obtain a glass substrate with a clean surface. The current power of the ultrasonic cleaner is 3A, the pH value of the chemical cleaning agent is 8±1, and the ultrasonic cleaning time is 30 minutes.

[0033] 2) AR coating on A surface: One side of the glass substrate is selected as the A surface, and an evaporation coating machine is used. Under vacuum conditions, two coating materials, silicon oxide and titanium oxide, are bombarded by ion source energy according to the set film system program to form an AR film (anti-reflection and anti-reflection film) on the surface of the glass substrate in a physical vapor deposition manner. The optical index λ=905±35nm, @AOI=30°-50°, S light Tmin>98%; @AOI=50°-60°, S light Tmin>97%.

[0034] 3) AR coating on B surface: Take the reverse side of A surface as B surface, repeat the operation in 2) and coat a layer of AR film on B surface as well. The optical index λ=905±35nm, @AOI=30°-50°, S light Tmin>98%; @AOI=50°-60°, S light Tmin>97%.

[0035] 4) Print peelable adhesive on side A: Use precision steel screen printing technology to print a layer of peelable adhesive on the designated area of ​​side A, specifically:

[0036] a. Print a layer of black ink in the window area of ​​side A. The printing size of the black ink is 0.2mm smaller than the size of the window on one side, and no curing agent is added to the ink. After printing, bake at 150℃ for 20 minutes to initially cure the black ink and play a bonding role between the glass and the peelable adhesive;

[0037] b. Print a layer of peelable glue on the black ink. Stir for 30 minutes before printing to expel all bubbles in the peelable glue to ensure printing flatness. The printing size should be consistent with the window hole size. After printing, bake at 180℃ for 60 minutes to completely solidify the ink and peelable glue.

[0038] 5) Printing peelable adhesive on side B: Repeat the operation in 4) to print a layer of peelable adhesive in the window area of ​​side B; the shapes and sizes of the window areas of side A and side B are different, and can be customized separately through the steel mesh films on both sides.

[0039] 6) Cleaning: Use an ultrasonic cleaner and chemical cleaning agents to clean the dirt remaining on the surface of the glass substrate to improve the smoothness of the coating.

[0040] 7) HR coating on A surface: Silicon hydride and silicon dioxide are selected as coating materials, and a sputtering coating machine is used. Under vacuum conditions, ICP energy bombardment, the two coating materials of silicon hydride and silicon oxide are alternately sputtered on the A surface of the glass substrate according to the set film system program under the reaction of chemical vapor deposition to form a layer of HR film (high reflection film). The optical indicators λ=905±35nm, @AOI=30°-50°, Rmin>97.5%, @AOI=50°-60°, Rmin>97%.

[0041] 8) BL coating on B surface: Silicon hydride, silicon dioxide and silicon nitride are selected as coating materials, and a sputtering coating machine is used to sputter a layer of BL film (absorption film) on the B surface of the glass substrate by chemical vapor deposition under vacuum conditions. The optical index λ=905±35nm, @AOI=20°-60°, Rmax<3.5%. On the premise of meeting the optical index, the stress of the HR film layer on the A surface is neutralized to achieve the effect of improving the surface shape of the product.

[0042] 9) Debonding and cleaning: Place the coated products into the fixture, and soak them in thinner water at room temperature for 4 hours to fully soften the peelable glue and black ink, and then put them into the ultrasonic cleaning machine to remove them through ultrasonic oscillation to obtain the debonded products. Different areas have different film layers stacked, corresponding to different optical functions. The debonding and cleaning process is mild and will not damage the film layer plated on the surface of the product, solving the problem of film corrosion during the strong alkaline debonding of traditional yellow light protective glue.

[0043] 10) Laser cutting: After the laser beam is focused by a lens, the focus of the laser beam is positioned at the cutting position of the product obtained in 9). Part of the laser energy forms high temperature on the product, which can be used to accurately and efficiently cut the product. The shape and size of the product are set through program software, and the required product shape and specifications are obtained by cutting. After cutting, the edge waste is removed to obtain the final multi-region adjustable optical performance window reflector product.

[0044] like Figure 2 As shown, a multi-region adjustable optical performance reflector is manufactured according to the above-mentioned manufacturing method, and the reflector is a window reflector.

[0045] The present invention achieves the functional richness of the windowed reflector product through the development of new processes and new materials. At the same time, the optical stability and surface shape problems are significantly improved, making the product more suitable for practical application scenarios.

[0046] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A method for manufacturing a multi-region adjustable optical performance reflector, It is characterized in that The manufacturing method comprises the following steps: 1) Substrate cleaning: Use an ultrasonic cleaner and chemical cleaning agents to clean the dirt remaining on the surface of the substrate. After cleaning, use a centrifugal dryer and bake at 65°C for 20 minutes to remove surface moisture and obtain a glass substrate with a clean surface; 2) AR coating on A surface: One side of the glass substrate is selected as the A surface, and an evaporation coating machine is used. Under vacuum conditions, two coating materials, silicon oxide and titanium oxide, are bombarded by ion source energy according to the set film system program to form an AR film on the surface of the glass substrate by physical vapor deposition; 3) AR coating on the B side: Take the reverse side of the A side as the B side, repeat the operation in 2) and coat a layer of AR film on the B side as well; 4) Print peelable adhesive on side A: Use precision steel screen printing technology to print a layer of peelable adhesive on the designated area of ​​side A; 5) Printing peelable adhesive on side B: Repeat the operation in 4) to print a layer of peelable adhesive in the window area of ​​side B; 6) Cleaning: Use an ultrasonic cleaner and chemical cleaning agent to clean the dirt remaining on the surface of the glass substrate; 7) HR coating on the A surface: Silicon hydride and silicon dioxide are selected as coating materials, and a sputtering coating machine is used. Under vacuum conditions, ICP energy bombardment, the two coating materials of silicon hydride and silicon oxide are alternately sputtered on the A surface of the glass substrate according to the set film system program under the reaction of chemical vapor deposition to form a layer of HR film; 8) BL coating on the B surface: Silicon hydride, silicon dioxide and silicon nitride are selected as coating materials, and a sputtering coating machine is used to sputter a layer of BL film on the B surface of the glass substrate by chemical vapor deposition under vacuum conditions; 9) Debonding and cleaning: Place the coated products into a fixture, and soak them together with the fixture in thinner water at room temperature for 4 hours to fully soften the peelable glue and black ink, and then put them into an ultrasonic cleaning machine to remove them through ultrasonic oscillation to obtain the debonded products; 10) Laser cutting: After the laser beam is focused by a lens, the focus of the laser beam is positioned at the cutting position of the product obtained in 9), the shape and size of the product are set by the program software, and the required product shape and specifications are obtained by cutting. After cutting, the edge waste is removed to obtain the final window reflector product.

2. A method for manufacturing a multi-region adjustable optical performance reflector according to claim 1, It is characterized in that The current power of the ultrasonic cleaning machine in 1) is 3A, the pH value of the chemical cleaning agent is 8±1, and the ultrasonic cleaning time is 30 minutes.

3. The method for manufacturing a multi-region adjustable optical performance reflector according to claim 1, It is characterized in that The 4) is specifically: a. Print a layer of black ink in the window area of ​​side A. The printing size of the black ink is 0.2mm smaller than the size of the window on one side, and no curing agent is added to the ink. After printing, bake at 150℃ for 20 minutes to initially cure the black ink; b. Print a layer of peelable glue on the black ink. Stir for 30 minutes before printing to expel all bubbles in the peelable glue to ensure printing flatness. The printing size should be consistent with the window hole size. After printing, bake at 180℃ for 60 minutes to completely solidify the ink and peelable glue.

4. The method for manufacturing a multi-region adjustable optical performance reflector according to claim 1, It is characterized in that The shapes and sizes of the window areas on the A side and the B side are different, and can be customized separately through the steel mesh films on both sides.

5. A multi-zone adjustable optical performance reflector, It is characterized in that The reflector Manufactured according to the manufacturing method of claim 1, the reflector is a windowed reflector.

Images