What are the changes in the optical properties of PS light guide plates under different thicknesses, shapes or surface treatments?

PS (polystyrene) light guide plate will have an impact on its optical performance under different thickness, shape or surface treatment conditions. Here are the possible changes:
Thickness changes:
Light transmittance: Generally speaking, a thinner PS light guide plate may have a higher light transmittance because the light does not need to pass through too thick a material.
Light uniformity: A thicker light guide plate may cause more scattering and reflection of light during propagation, thereby reducing light uniformity.
Shape changes:
Light propagation direction: Different shapes of light guide plates may have an impact on the direction of light propagation. For example, a curved light guide plate may focus or scatter light better.
Optical effects: Specially shaped light guides may produce specific optical effects, such as refraction, reflection or diffraction, for specific application needs.
Changes in surface treatment conditions:
Light uniformity: Different surface treatment methods, such as frosting, sandblasting, polishing, etc., will affect the light uniformity on the surface of the light guide plate, thereby affecting the uniformity of light transmission.
Reflection and diffuse reflection: The surface treatment method may change the reflection and diffuse reflection characteristics of light, affecting the propagation direction and uniformity of light.
The optical performance changes of PS light guide plates under different thickness, shape or surface treatment conditions are manifold. These changes will affect the light propagation effect, light uniformity, and light source utilization efficiency of the light guide plate in different application scenarios.