How They Work

LSD surface relief structures are replicated from a holographically recorded master. • The completely random, non-periodic structures can be thought of as randomized micro-lenslets. • LSDs are non-wavelength dependent and will work in white, monochromatic, coherent or incoherent light. • LSDs diverge light, emulating a negative lens. • LSDs work best with collimated light, but will also work well with non-collimated light. • The randomized structures eliminate Moiré and color diffraction. • Incoming light is precisely controlled within well defined areas. Light does not escape these boundaries, resulting in greater control and utilization of light, thus maximizing photon utilization. • LSDs provide greater photon density compared to other diffusers, making LSDs very suitable for high ambient or highly efficient light conditions.