Method for manufacturing a black light-transmitting material and use thereof

By adjusting specific light-diffusing powder to create black light-transmitting material, the problems of inconsistent appearance and poor light transmission of the light-transmitting material of camera fill light beads are solved, achieving a black appearance and soft light transmission effect, which is suitable for front-facing cameras of displays.

CN115592998BActive Publication Date: 2026-07-24DONGGUAN HAMPO ELECTRONIC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DONGGUAN HAMPO ELECTRONIC TECH CO LTD
Filing Date
2022-10-08
Publication Date
2026-07-24

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Abstract

The application relates to a camera technical field, in particular to a black light-transmitting material manufacturing method and application thereof, which comprises the following steps: step 1, preparing a toner formula, wherein the toner formula comprises PC / PS organic light diffusion powder 30-35%, MP90 light diffusion powder 30-35%, toner diffusion oil 0.5-2% and EB-FF diffusion powder 30-35% according to weight percentage, and the toner formula is adjusted to 20g of toner according to the above weight percentage; the problem of black appearance matching is solved, light transmission is not too dark, lamp color consistency can hide light sources and dazzling light sources, the whole resin can emit softer, more beautiful and elegant light, a comfortable effect of light transmission and non-transparency is achieved, the application is suitable for a camera in front of a display screen, the application will not cause harm to the eyes of a user, the black light-transmitting material can transmit white light, so that the lamp beads cannot be seen, and the overall color is coordinated.
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Description

Technical Field

[0001] This invention relates to the field of camera technology, and in particular to a method for manufacturing a black light-transmitting material and its application. Background Technology

[0002] A webcam is a video input device. With the maturity of network technology, webcams are widely used in video conferencing, online education, and live streaming. However, traditional webcams in front of computer screens, due to their limited functionality and the thinness of computer monitors, cannot meet users' video input needs. Therefore, installing a standalone webcam in front of the screen has become the preferred method for most users. A standalone webcam typically has a supplementary LED light around the lens, which illuminates the subject (people or objects) in low light conditions to capture relatively clear images. The lens and LED light are assembled in a housing, and a light-transmitting material is placed at the front of the housing to both allow light to pass through and protect the lens and LED light. However, existing light-transmitting materials are generally made of transparent or colored materials, and colored materials cannot be black, which presents the following drawbacks: First, the light-transmitting material of the camera's fill light LED is easily visible, affecting its appearance; second, the light-transmitting material of the camera's fill light LED cannot transmit a pure white color; third, the light-transmitting material of the camera's fill light LED has poor light transmission; fourth, the camera's casing is black, and the color of the light-transmitting material of the camera's fill light LED does not match the casing. Therefore, it is necessary to propose a new technical solution to solve the above problems. Summary of the Invention

[0003] To overcome the shortcomings mentioned above, the present invention aims to provide a technical solution that can solve the above problems.

[0004] A method for manufacturing a black translucent material includes the following steps: Step 1: Prepare the color powder formula. The color powder formula includes 30%-35% PC / PS organic light diffusing powder, 30%-35% MP90 light diffusing powder, 0.5%-2% color powder diffusing oil, and 30%-35% EB-FF diffusing powder by weight percentage. The color powder formula is adjusted according to the above weight percentages to make 20g of color powder. Step 2, raw material mixing: After coloring in Step 1, put 20g of color powder and 25kg of PC110 plastic raw material into a mixer and mix them evenly for 30 minutes. The mixed raw material is close to the brown PC110 raw material. Step 3, raw material baking: Pour the raw material mixed in Step 2 into the hopper of the injection molding machine. The raw material enters the barrel of the injection molding machine along the hopper for baking. The baking temperature is controlled at 110-130 degrees Celsius for 3-4 hours to bake the raw material into a molten material. Step 4, injection molding: The molten material baked in step 3 is injected into the mold through the injection nozzle of the injection molding machine for injection molding. It is then molded into the desired shape, demolded, and cooled for 30 seconds to form a black translucent material of the desired shape. Step 5: Finished product measurement. The black light-transmitting material injection molded in Step 4 is subjected to size testing and visual inspection. If it meets the required size of the lens housing, it is considered a qualified product.

[0005] Preferably, the color powder formulation comprises, by weight percentage, 33.5% PC / PS organic light diffusing powder, 33.5% MP90 light diffusing powder, 1% color powder diffusing oil, and 32% EB-FF diffusing powder, and the color powder formulation is adjusted to produce 20g of color powder according to the above weight percentages.

[0006] Preferably, the PC / PS organic light-diffusing powder is a special organosilicon resin spherical micro powder.

[0007] Preferably, the MP90 light-diffusing powder is a copolymer of methyl methacrylate and acrylate.

[0008] An application of a black translucent material, comprising a black translucent material made by the aforementioned method, characterized in that the black translucent material is applied to the lens housing of a camera to block the supplementary light beads arranged around the camera lens, so that the light emitted by the supplementary light beads passes through the black translucent material.

[0009] Compared with the prior art, the beneficial effects of the present invention are: The color powder formula uses PC / PS organic light diffusing powder, MP90 light diffusing powder, color powder diffusing oil, and EB-FF diffusing powder to create 20g of black color powder. After color mixing, 20g of color powder and 25kg of PC110 plastic raw material are placed in a mixer to produce the black raw material needed to manufacture the camera lens housing. Then, the black raw material is injection molded into the required camera lens housing structure. The light-transmitting material is composed of a combination of various light diffusing powders, which can be combined with PC110 plastic raw material and can be injection molded. The black color of the light-transmitting material solves the problem of black appearance matching. The light transmission is not too dim, and the light color is consistent. It can block the light source and glare light source, while making the entire resin emit a softer, more beautiful, and elegant light, achieving a comfortable light transmission but not transparency effect. It is suitable for the application of front-facing cameras of displays and will not harm the user's eyes. The black light-transmitting material can transmit pure white light, so that the LED beads are not visible, and the overall color is harmonious.

[0010] Additional aspects and advantages of the invention 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 invention. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a flowchart of the process flow of the present invention; Figure 2 This is a schematic diagram of the structure of the camera lens housing in this invention. Detailed Implementation

[0013] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0014] In this embodiment of the invention, a method for manufacturing a black translucent material is disclosed. The black translucent material is applied to the lens housing of a camera to block the supplementary light beads arranged around the camera lens, so that the light emitted by the supplementary light beads can be transmitted through the black translucent material.

[0015] Among them, PC / PS organic light diffusing powder, MP90 light diffusing powder, color powder diffusing oil, and EB-FF diffusing powder were used to adjust the color of the black powder; PC / PS organic light diffusing powder is a special organic silicone resin spherical micro powder, specifically diffusing powder KMP-590, which has a three-dimensional cross-linked network molecular structure and exhibits excellent heat resistance, dispersion performance, and high temperature resistance up to 470 degrees without discoloration. It is widely used in high-end transparent PC / LED lampshades / lamp tubes and light boxes, flat panel LCD light diffusing plates, and other fields; MP90 light diffusing powder is a colorless and transparent solid polymerized from methyl methacrylate and acrylate copolymer, commonly known as plexiglass, with a density of 1.18 g / cm3. It is lightweight, not easily broken, has good light transmission, and is relatively stable to acids and alkalis. It is easily soluble in acetone, ethyl acetate, chloroform, etc.; pigment diffusion oil is used in the injection molding and masterbatch production of various plastics to improve the dispersion of pigments, making the coloring more uniform and brighter, while also giving the surface of the product a glossy finish and acting as an internal and external mold release agent, and can greatly improve product performance; EB-FF diffusion powder is a waxy ethylene bis-stearamide (EBS) with a high melting point of 146 degrees Celsius and maintains low viscosity in the molten state; it has good compatibility with resins and solvents in the high-temperature molten state.

[0016] Specifically, it includes the following steps: Step 1: Prepare the color powder formula. The color powder formula includes 30%-35% PC / PS organic light diffusing powder, 30%-35% MP90 light diffusing powder, 0.5%-2% color powder diffusing oil, and 30%-35% EB-FF diffusing powder by weight percentage. The color powder formula is adjusted according to the above weight percentages to make 20g of color powder. Step 2, raw material mixing: After coloring in Step 1, put 20g of color powder and 25kg of PC110 plastic raw material into a mixer and mix them evenly for 30 minutes. The mixed raw material is close to the brown PC110 raw material. Step 3, raw material baking: Pour the raw material mixed in Step 2 into the hopper of the injection molding machine. The raw material enters the barrel of the injection molding machine along the hopper for baking. The baking temperature is controlled at 110-130 degrees Celsius for 3-4 hours to bake the raw material into a molten material. Step 4, injection molding: The molten material baked in step 3 is injected into the mold through the injection nozzle of the injection molding machine for injection molding. It is then molded into the desired shape, demolded, and cooled for 30 seconds to form a black translucent material of the desired shape. Step 5: Finished product measurement. The black light-transmitting material injection molded in Step 4 is subjected to size testing and visual inspection. If it meets the required size of the lens housing, it is considered a qualified product.

[0017] The color powder formula uses PC / PS organic light diffusing powder, MP90 light diffusing powder, color powder diffusing oil, and EB-FF diffusing powder to create 20g of black color powder. After color mixing, 20g of color powder and 25kg of PC110 plastic raw material are placed in a mixer to produce the black raw material needed to manufacture the camera lens housing. Then, the black raw material is injection molded into the required camera lens housing structure. The light-transmitting material is composed of a combination of various light diffusing powders, which can be combined with PC110 plastic raw material and can be injection molded. The black color of the light-transmitting material solves the problem of black appearance matching. The light transmission is not too dim, and the light color is consistent. It can block the light source and glare light source, while making the entire resin emit a softer, more beautiful, and elegant light, achieving a comfortable light transmission but not transparency effect. It is suitable for the application of front-facing cameras of displays and will not harm the user's eyes. The black light-transmitting material can transmit pure white light, so that the LED beads are not visible, and the overall color is harmonious.

[0018] Preferably, the color powder formulation comprises, by weight percentage, 33.5% PC / PS organic light diffusing powder, 33.5% MP90 light diffusing powder, 1% color powder diffusing oil, and 32% EB-FF diffusing powder, and the color powder formulation is adjusted to produce 20g of color powder according to the above weight percentages.

[0019] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. A method for manufacturing a black translucent material, characterized in that, Includes the following steps: Step 1: Prepare the color powder formula. The color powder formula includes 33.5% PC / PS organic light diffusing powder, 33.5% MP90 light diffusing powder, 1% color powder diffusing oil, and 32% EB-FF diffusing powder by weight percentage. The color powder formula is adjusted according to the above weight percentages to make 20g of color powder. Step 2, raw material mixing: After coloring in Step 1, put 20g of color powder and 25kg of PC110 plastic raw material into a mixer and mix them evenly for 30 minutes. The mixed raw material is close to the brown PC110 raw material. Step 3, raw material baking: Pour the raw material mixed in Step 2 into the hopper of the injection molding machine. The raw material enters the barrel of the injection molding machine along the hopper for baking. The baking temperature is controlled at 110-130 degrees Celsius for 3-4 hours to bake the raw material into a molten material. Step 4, injection molding: The molten material baked in step 3 is injected into the mold through the injection nozzle of the injection molding machine, and then molded into the desired shape. After demolding and cooling for 30 seconds, it is formed into the desired shape of black translucent material. Step 5: Finished product measurement. The black light-transmitting material injection molded in Step 4 is subjected to size testing and visual inspection. If it meets the required size of the lens housing, it is considered a qualified product.

2. The method for manufacturing a black translucent material according to claim 1, characterized in that, PC / PS organic light diffusion powder is a special type of organosilicon resin spherical micro powder.

3. The method for manufacturing a black translucent material according to claim 1, characterized in that, MP90 light-diffusing powder is a copolymer of methyl methacrylate and acrylate.

4. An application of a black translucent material, comprising a black translucent material prepared by any one of claims 1-3, characterized in that, A black, light-transmitting material is applied to the lens housing of the camera to block the fill light beads placed around the camera lens, allowing the light emitted by the fill light beads to pass through the black, light-transmitting material.