How does Foshan craft glass achieve the iridescent effect?
Release time:
Jan 06,2025
Iridescent glass (also known as light wave glass or optical film glass) achieves its iridescent effect mainly based on the principles of light interference and reflection. Its production process mainly includes the following methods:
1. Ordinary laminated film process
This process involves producing iridescent film (also known as dichroic film, rainbow film, colorful film, fantasy film, or laser rainbow film) by laminating it between two pieces of glass. The iridescent film is a multilayer film made by melting and extruding two or more resins with different refractive indices, layered up to more than 100 layers, with each layer only a few hundred nanometers thick.
This multilayer structure causes light to interfere and reflect when passing through the iridescent film, resulting in specific colors and effects.
2. Surface coating process
This process involves applying an iridescent coating treatment to the surface of a single glass piece. Through this thin layer of high and low refractive index metal oxide coating, iridescent glass can present a rich variety of color changes with changes in viewing angle and sunlight conditions.
This flexible and variable color-changing characteristic not only adds rich visual layers to the glass but also endows it with profound artistic connotations.
3. Optical film deposition
Depositing multiple layers of special optical films on the glass surface is also a method to achieve iridescent effects. These optical films can precisely control light interference and reflection, producing specific colors and patterns.
This technology is usually used to manufacture iridescent glass with more complex and intricate patterns.

4. Applications and characteristics
Iridescent glass not only has a unique decorative effect but also exhibits excellent optical performance. It has high light transmittance and high clarity, allowing ample outdoor light to enter, creating a bright and comfortable indoor environment.
In addition, iridescent glass also possesses high scratch resistance, chemical corrosion resistance, and excellent thermal insulation properties, making it both convenient and durable in practical applications. More importantly, it can effectively reduce heat loss in buildings, enhancing energy efficiency.

In summary, iridescent glass achieves its unique iridescent effect through ordinary laminated film processes, surface coating processes, and optical film deposition, combined with the principles of light interference and reflection.
These processes not only endow iridescent glass with rich colors and patterns but also give it excellent optical performance and practicality.
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