Iridescent glass, also known as dichroic glass or seven-color coated glass, is a special type of optical glass with a decorative style. Its most distinctive feature is that it can reflect different colors at different angles.
Five colors - orange, green, blue, red and yellow - change according to the Angle of the top of the direct sunlight and the observer's position, creating a dreamlike light and shadow effect.

Five changeable colors
There are two production processes for colored glass: The first is the common laminated process: the finished product produced by laminating the colored film/dichroic film through two pieces of glass is called colored glass.

Laminating process
Glass lamination uses two or more pieces of glass to sandwich a strong PVB film in the middle. The film adhesive is stuck between two pieces of glass. They are compressed by a hot press to expel as much intermediate air as possible and then placed in a high-pressure steam engine. High temperature and high pressure are formed by dissolving a small amount of residual air in the film.
Iridescent film
Iridescence film is a stretchable decorative material, also known as rainbow film, seven-color film, dazzling color film, laser rainbow film, etc. It is a plastic composite film made by melting and extruding two or more resins with different refractive indices and stacking them at intervals for more than 100 layers. Each layer is only a few hundred nanometers thick. The material is relatively brittle and it is a multi-layer film that can be used alone. It can also be applied after being rechecked with various materials.
The second is the surface crystal coating process: It refers to the application of a dazzling crystal coating on the surface of a single glass sheet. The dazzling glass formed in this way has a more excellent seven-color color-changing effect.
The dazzling glass can present different color changes from various angles mainly due to the crystal layer on its surface, which follows the optical principle (an optical phenomenon formed by equilateral triangles with three sides of the same degree).
The principle of the seven-color presentation of a prism
The performance of colorful glass: Transparency. High ornamental value, environmentally friendly, non-fading, non-salivating, acid and alkali resistant, high-temperature resistant, sterilization and other functions. The middle layer can reduce solar radiation and prevent energy loss. It can also buffer the vibration of sound waves and achieve a sound insulation effect.
The magical color-changing effect of the dazzling glass has made it a highly popular decorative material. It is an ideal, environmentally friendly and new type of building material that is contemporary, luxurious, elegant and beautiful.
In the hands of designers, the material of the dazzling glass has been endowed with a pure soul, creating ever-changing and magnificent postures and light and shadow in the fields of architecture, interior and exterior.
