CN214310956U

CN214310956U - Aluminum-based reflecting film for enhancing reflectivity

Info

Publication number: CN214310956U
Application number: CN202120495902.2U
Authority: CN
Inventors: 刘景峰
Original assignee: Beijing Qifenglanda Optics Technology Development Co ltd
Current assignee: Beijing Qifenglanda Optics Technology Development Co ltd
Priority date: 2021-03-09
Filing date: 2021-03-09
Publication date: 2021-09-28
Anticipated expiration: 2031-03-09

Abstract

The utility model discloses an aluminium base reflectance coating of reinforcing reflectivity, include: the substrate with the aluminum film and a plurality of dielectric films plated on the aluminum film; the dielectric film comprises SiO₂Film and coating on SiO₂ZrO of film surface₂Film of SiO₂Film-coating on the surface of aluminium film, ZrO₂The film is at the outermost layer of the aluminum-based reflective film. The utility model discloses aluminium base reflectance coating of reinforcing reflectivity, the rete intensity that is than current reflectance coating is high, has higher reflectivity in near-infrared and visible light within range, can use at near-infrared and visible light wavelength range, and application range has obtained the extension。

Description

Aluminum-based reflecting film for enhancing reflectivity

Technical Field

The utility model belongs to the technical field of the aluminium reflectance coating technique and specifically relates to an aluminium base reflectance coating of reinforcing reflectivity.

Background

The reflection of reflective films is now increasingly required by the skilled worker, especially in the field of optical applications. The reflecting film in the prior art generally consists of a glass substrate and a zinc sulfide film layer, a zinc selenide film layer and an ytterbium oxide film layer which are arranged on the glass substrate, and the zinc oxide reflecting film has the defect of low reflectivity because the zinc oxide reflecting film absorbs light energy in the wavelength ranges of far infrared and middle infrared.

SUMMERY OF THE UTILITY MODEL

To the problem that prior art exists, the utility model aims to provide an aluminium base reflectance coating of reinforcing reflectivity.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

an aluminum-based reflective film with enhanced reflectivity, comprising: the substrate with the aluminum film and a plurality of dielectric films plated on the aluminum film; the dielectric film comprises silicon oxide (SiO)₂) Film and coating on said SiO₂Zirconium oxide (ZrO) on film surface₂) Film of wherein the SiO₂A film is plated on the surface of the aluminum film, and the ZrO₂The film is at the outermost layer of the aluminum-based reflective film.

Furthermore, the number of the dielectric film layers is 2-8.

Further, the substrate is K9 glass.

The utility model discloses aluminium base reflectance coating of reinforcing reflectivity, the rete intensity that is than current reflectance coating is high, has higher reflectivity in near-infrared and visible light within range, can use at near-infrared and visible light wavelength range, and application range has obtained the extension.

Drawings

Fig. 1 is a schematic cross-sectional structure diagram of an aluminum-based reflective film with enhanced reflectivity according to an example of the present invention;

in the figure:

1-a substrate; 2-an aluminum film; 3-dielectric film; 3-1-SiO₂A film; 3-2-ZrO₂And (3) a membrane.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the technical solutions of the present invention are described below clearly and completely with reference to the drawings in the examples of the present invention, and it is obvious that the described examples are only a part of examples of the present invention, but not all examples. Based on the examples in the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

As shown in FIG. 1, an aluminum-based reflective film with enhanced reflectivity is providedThe method comprises the following steps: the substrate 1 with the aluminum film 2, a plurality of dielectric films 3 plated on the aluminum film 2; the dielectric film 3 comprises SiO₂Film 3-1 and SiO-plated film₂ZrO of film 2-1 surface₂Film 3-2 of SiO₂Film 3-1 is plated on aluminum film 2, ZrO₂The film 3-2 is at the outermost layer of the aluminum-based reflective film.

The aluminum-based reflective film with enhanced reflectivity of the example has higher film strength than that of the existing reflective film, has higher reflectivity in the near infrared and visible light ranges, can be used in the near infrared and visible light wavelength ranges, and has an expanded use range.

In the dielectric film 3, the number of layers of the dielectric film 3 is 2 to 8. The larger the number of layers of the dielectric film 3, the higher the reflectivity, and those skilled in the art can determine the number of layers of the dielectric film 3 according to the requirement of the reflectivity.

Referring to fig. 1, in this example, the number of dielectric films 3 is 2.

In this example, the substrate 1 is K9 glass. The K9 glass is a glass product made of K9 material and is used in the fields of optical coating and the like.

The present exemplary aluminum-based reflective film can be prepared by the following method:

firstly, heating, and plating an aluminum film 2 on the surface of a substrate 1 when the temperature of the substrate 1 is 200-300 ℃;

heating, wherein when the temperature of the aluminum film 2 is 200-300 ℃, 2 dielectric films 3 are plated on the surface of the aluminum film 2, and the method specifically comprises the following steps:

plating a first dielectric film 3: plating a first layer of SiO on the surface of the aluminum film 2₂3-1 of a membrane; in the first layer of SiO₂Coating the surface of the membrane 3-1 with a first layer of ZRO₂3-2 parts of a membrane;

plating a second dielectric film 3: at the first layer ZRO₂Film 3-2 surface plating second layer SiO₂3-1 of a membrane; in the second layer of SiO₂Coating the surface of the membrane 3-1 with a second layer of ZRO₂And (3) a membrane (2).

Through the above steps, the aluminum-based reflective film of the present example was obtained.

In other embodiments of the present invention, if the reflectivity of the aluminum-based reflective film is enhanced, the dielectric film 3 with more layers is plated on the surface of the aluminum film 2, and the aluminum film is repeatedly operatedMaking SiO₂Membrane 3-1 and ZRO₂Membrane 3-2 gap plating with ZRO₂The film 3-2 is at the outermost layer of the aluminum-based reflective film.

Finally, it is to be understood that the above embodiments are merely exemplary embodiments that have been employed to illustrate the principles of the present invention, and that the present invention is not limited thereto. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention, and these changes and modifications are to be considered as the protection scope of the invention.

Claims

1. An aluminum-based reflective film with enhanced reflectivity, comprising: the substrate with the aluminum film and a plurality of dielectric films plated on the aluminum film; the dielectric film comprises SiO₂Film and coating on said SiO₂ZrO of film surface₂Film of wherein the SiO₂A film is plated on the surface of the aluminum film, and the ZrO₂The film is at the outermost layer of the aluminum-based reflective film.

2. The aluminum-based reflective film according to claim 1, wherein the number of layers of the dielectric film is 2 to 8.

3. The aluminum-based reflective film according to claim 1, wherein said substrate is K9 glass.