CN111138084A

CN111138084A - Glass coating method

Info

Publication number: CN111138084A
Application number: CN202010045229.2A
Authority: CN
Inventors: 陆张武; 李恭剑; 徐征驰; 王迎
Original assignee: Zhejiang Jingchi Photoelectric Technology Co ltd
Current assignee: Zhejiang Jingchi Photoelectric Technology Co ltd
Priority date: 2020-01-16
Filing date: 2020-01-16
Publication date: 2020-05-12

Abstract

A glass coating method belongs to the technical field of coating. The method comprises the following steps: step S01, arranging a plurality of transverse and vertical grooves on the film coating surface of the glass to be coated so as to uniformly divide the film coating surface into a plurality of units; step S02, ultrasonically cleaning the glass to be coated and coating; and step S03, splitting, namely cutting the complete coated glass into small unit-shaped pieces. The invention can produce the coated glass with high stress and high film thickness in a large scale with low cost, and solves the problem of easy film stripping caused by the film thickness.

Description

Glass coating method

Technical Field

The invention belongs to the technical field of film coating, and particularly relates to a glass film coating method.

Background

The existing glass coating means that SI, TI, AL, NB and the like and oxides thereof are coated on the surface of materials such as glass and the like, the coated glass has specific transmission and reflection requirements within the range of 300-1500nm, and the glass is mainly applied to imaging lenses. For the film thickness exceeding 2500nm, the stress is increased due to the increase of the film thickness, and the film falls off when the film is coated on the surface of the substrate. In order to solve the problem of demoulding caused by the increase of stress, the existing solutions have two kinds: one is to increase the adhesion between the film layer and the substrate by adding an adhesive layer; the other method is to cut the substrate to reduce the area of the film layer to reduce the stress of the film layer, and then improve the film sticking degree of the film layer on the surface of the substrate.

However, both of the above methods have certain drawbacks. Scheme one, because stress increases, need increase the tie coat and promote the adhesion of rete and substrate, can increase the membrane thickness for the coating film cost increases, and it is long when having increased the coating film, moreover because tie coat optical characteristic relation makes product optical characteristic receive extra influence. In the second scheme, the substrate is cut into small coating films, so that the requirement of a coating jig is increased, and the cost of batch production is increased. At the same time, the cost of the test strip is increased.

The invention patent application CN201710088686.8 discloses a preparation method of high infrared reflection coated glass, and particularly discloses a preparation method of the high infrared reflection coated glass, which is to cut a glass substrate into preset sizes and coat a film on a single substrate. This method has the above problems, and mass production of high-stress, high-film-thickness coated glass is impossible.

Disclosure of Invention

The invention provides a glass coating method which is low in cost and can be used for producing high-stress high-film-thickness coated glass in a large scale aiming at the problems in the prior art.

The invention is realized by the following technical scheme:

the invention relates to a glass coating method, which comprises the following steps

Step S01, arranging a plurality of transverse and vertical grooves on the film coating surface of the glass to be coated so as to uniformly divide the film coating surface into a plurality of units;

step S02, ultrasonically cleaning the glass to be coated and coating;

and step S03, splitting, namely cutting the complete coated glass into small unit-shaped pieces.

The method only needs to carry out film coating on the complete piece of glass, and then carries out splitting treatment to obtain a plurality of small pieces of coated glass, so that the film coating efficiency is high, and the batch production with low cost can be realized. And the method reduces the risk of demoulding.

Preferably, the thickness of the glass to be coated is 0.1-1.00 mm.

Preferably, the depth of the grooves is one fifth to two thirds of the thickness of the glass.

Preferably, the step S03 specifically includes performing a splitting process on the complete coated glass, and cutting the coated glass into a plurality of unit-shaped small pieces by using the grooves as cutting positions.

Preferably, the coated glass is applied to an imaging lens or a small-piece type coated product.

The invention has the following beneficial effects:

the invention relates to a glass coating method, which comprises the following steps:

1. the cutting does not crack, so that the product can be coated according to a large sheet process, and the coating difficulty is reduced. The difficulty of coating films on the products cut into small pieces increases sharply in the aspects of jigs, measurement and the like. Moreover, the film coating finished in large scale has low cost and large batch.

2. The firmness of the film layer is increased. Because the film coating area is divided into small areas, the transverse stress of the film layer is reduced, the film coating force of the product is increased, and the risk of film stripping is reduced.

Drawings

FIG. 1 is a flow chart of a glass coating method of the present invention;

FIG. 2 is a schematic front view of a coated glass using the method of the present invention;

FIG. 3 is a schematic side view of a coated glass using the method of the present invention.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

Referring to fig. 1, the present invention provides a glass coating method, including:

step S02, ultrasonically cleaning the glass to be coated and coating;

The glass to be coated is selected from glass with the thickness of 0.1-1.00 mm.

In step S01, the glass to be coated is specially processed, that is, grooves are formed on the coating surface of the glass to be coated, referring to fig. 2, a plurality of staggered grooves are formed in the vertical and horizontal directions, the coating surface is uniformly divided into a plurality of units by the plurality of grooves, and the size of each unit can be set according to the requirement of the imaging lens. As can be seen in FIG. 3, the glass to be coated is still a whole, and is only divided into a plurality of units by the grooves on the coating surface. The depth of the groove is one fourth to one half of the thickness of the glass.

And then, cleaning the surface of the glass by ultrasonic cleaning so as to facilitate film coating. The coating can be carried out by coating SI, TI, AL, NB and the like and oxides thereof on the surface of the glass by adopting the existing coating machine according to the needs, so that the coated glass has specific transmission and reflection requirements in the range of 300-1500nm, and is suitable for different types of imaging lenses or other small-piece coating products.

The step S03 specifically includes: and (4) carrying out splitting treatment on the complete coated glass, and cutting the coated glass into a plurality of unit-shaped small pieces by taking the grooves as cutting positions. On the basis of the whole piece of coated glass, a cutting device is utilized to rapidly cut a plurality of lower pieces with uniform sizes along the groove. Because the film coating area is divided into small areas, the glass can not only be ensured to have a high film thickness, but also the film stress is reduced, and the film stripping is avoided.

It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention. The objects of the present invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.

Claims

1. A glass coating method is characterized by comprising the following steps:

step S02, ultrasonically cleaning the glass to be coated and coating;

2. The method according to claim 1, wherein the thickness of the glass to be coated is 0.1-1.00 mm.

3. The method of claim 1, wherein the depth of the grooves is one fifth to two thirds of the thickness of the glass.

4. The method according to claim 1, wherein the step S03 comprises splitting the whole coated glass into several unit-shaped pieces with the grooves as cutting positions.

5. The method of claim 1, wherein the coated glass is applied to an imaging lens or a small-sized coated product.