Flashed opal diffusers are optical components that use a surface treatment technique to provide a diffuse and uniform illumination over a wide viewing angle.
The surface treatment is achieved by vapor depositing a thin layer of opal glass onto a transparent glass substrate, creating a rough and scattering surface. These diffusers are commonly used in backlighting applications, such as liquid crystal displays (LCDs) and signage. The degree of diffusion can be controlled by adjusting the thickness of the opal layer, and they are available in a range of sizes and thicknesses.
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