High diffuse reflection aluminum film on frosted surface and preparation method thereof

A technology with high diffuse reflection and frosted surface, applied in sputtering plating, ion implantation plating, coating, etc., can solve the problems of low reflectivity of high reflective film and high reflectivity of high diffuse reflective aluminum film

Active Publication Date: 2018-07-27
苏州市唯嘉光学有限公司
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Problems solved by technology

[0005] In view of the defects in the above-mentioned prior art, the purpose of this invention is to propose a method for preparing a high diffuse reflection aluminum film on a frosted surface, the high diffuse reflection aluminum film on the frosted surface prepared by the method has a high reflectivity, and the visible area The range can reach more than 95%, which solves the problem of low reflectivity of high reflective film coated on the frosted surface

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  • High diffuse reflection aluminum film on frosted surface and preparation method thereof

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Embodiment 1

[0041] A method for preparing a high diffuse reflection aluminum film on a frosted surface, comprising the steps of:

[0042] 1) Clean the frosted surface of the sandblasted aluminum plate to obtain a frosted surface that meets the requirements; the specific steps are as follows:

[0043]First use eight slots to ultrasonically clean the frosted surface of the sandblasting aluminum plate: the first slot is for degreasing, ultrasonic power: 1200W, ultrasonic frequency: 40KHz, temperature: 50°C; the second slot is for water rinsing, the water temperature is 50°C; the third slot and The fourth tank is pure water washing, ultrasonic power: 1200W, ultrasonic frequency: 40KHz, temperature: 50°C; the fifth and sixth tanks are pure water washing, ultrasonic power: 900W, ultrasonic frequency: 80KHz, temperature: 50°C; The seventh tank is to cut water and dry slowly, using a purification blower; the eighth tank is a drying tank, using a quartz tube heater.

[0044] Then dehydrate and dr...

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Abstract

The invention discloses a high diffuse reflection aluminum film on a frosted surface and a preparation method thereof. The preparation method comprises the following steps of cleaning the frosted surface of a sand blasting aluminum plate through ultrasonic waves to obtain the frosted surface meeting requirements; plating an aluminum film through a vacuum evaporation method; and continuously and immediately plating a multi-layer dielectric film in a high-vacuum coating machine to obtain the high diffuse reflection aluminum film. According to the preparation method, the reflectivity of the highdiffuse reflection aluminum film on the frosted surface is high, and can reach more than 95% in the visible region range, and the problem that the reflectivity of the high-reflectivity film plated onthe frosted surface is low is solved.

Description

technical field [0001] The invention belongs to the emission film coating technology of optical elements, in particular to a high diffuse reflection aluminum film on a frosted surface and a preparation method thereof. Background technique [0002] Due to the advantages of laser light sources such as pure color, high brightness, and stable use, laser display technology is the direction of development today. Among them, the aluminum film that is highly reflective to the visible light area (380nm ~ 780nm) on the sandblasted aluminum plate is one of them. of a photoelectric element. Usually the high reflective film is coated on the "mirror surface", also known as the "glossy surface". Its reflectivity is in line with the optical reflection theorem. The "hair surface" that has been sandblasted (about 200 mesh) is also called the "frosted surface". [0003] In the field of optical films, the difference between "frosted surface" and "mirror surface" lies in the flatness of the su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/24C23C14/02C23C14/08C23C14/10C23C14/16
CPCC23C14/021C23C14/028C23C14/081C23C14/10C23C14/16C23C14/221C23C14/24
Inventor 范皓洋
Owner 苏州市唯嘉光学有限公司
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