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Dec 3, 2019 · SPD stands for Suspended Particle Devices (rod-like particles that are suspended in a matrix). SPD can block up to 99% of light, making it ideal for custom shading in outdoor windows, and not a solid privacy solution.
Suspended Particle Devices (SPD) is a smart glass technology developed and patented by US-based Research Frontiers Inc., which offers an instantaneous and reversible change in tint when driven by voltage. In the deactivated state, SPD smart glass is opaque.
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The SPD film allows dynamic control of light transmission without ever completely blocking the view, offering excellent versatility in a variety of fields. The microscopic particles suspended in the fluid layer within the material show blue in the OFF state and transparent in the ON state.
SPD smart glass blocks 99% of light, allowing windows to dim and tint without blocking views, making it the optimal shading choice for exterior windows across industries. LCG® Smart Glass is available with two distinct technologies: PDLC or SPD.
The SPD film layer in SPD-Smart architectural products is called a “light valve.” Within the film are millions of microscopic particles. The particles are randomly oriented due to Brownian motion and absorb over 99% of visible light hitting the window.