The factors that determine the transparency of frosted lampshades mainly include the following:
1. * * Degree of frosting treatment * *: The degree of frosting treatment is one of the key factors affecting the transmittance. The heavier the frosting treatment, the higher the surface roughness, and the greater the degree of light scattering when passing through the lampshade. This will cause more light to be dispersed rather than directly penetrated, thereby reducing the transmittance.
2. * * Material * *: The material of the lampshade itself can also affect the transmittance. Even with the same frosting treatment, different materials (such as PC, PMMA, glass, etc.) may have different light transmittance properties due to their inherent differences in optical properties. Materials with high transparency can theoretically achieve higher light transmittance, but this advantage will be weakened after frosting treatment.
3. * * Thickness of lampshade * *: The thickness of lampshade will affect the attenuation of light when passing through. A thicker lampshade will cause more light to be absorbed or scattered during the passage process, resulting in a decrease in transmittance.
4. * * Color *: If the frosted lampshade has a color, the depth of the color will also affect the transmittance. The darker the color, the more light is absorbed, and the less light is transmitted, resulting in a natural decrease in transmittance.
5. * * Surface flatness * *: Although the surface of the frosted lampshade is originally designed to be non smooth, differences in flatness in local areas may also affect the way light is scattered, thereby affecting the transmittance.
6. * * Manufacturing process * *: The processing accuracy, cleanliness (such as the presence of impurities), and whether additional optical optimization designs (such as microstructure treatment) are adopted during the manufacturing process can all affect the transmittance.
7. * * Environmental factors * *: Although not a characteristic of the lampshade itself, temperature changes or accumulation of pollution in the usage environment may also affect the light transmission performance of the lampshade, especially after long-term use.
Understanding these factors helps to better predict and regulate the light transmittance performance of frosted lampshades when designing and selecting them to meet specific lighting needs.
