Nye's optical gels and fluids are designed to serve as a "bridge" for light signals. When applied between two solid materials, such as transparent plastics and glasses, they minimize reflection of light by matching the refractive index of the mating materials, thereby optimizing light transmission.
Also known as "index-matching" gels and fluids, these optical couplants offer other advantages. Unlike optical epoxies, Nye's optical gels allow pliable mechanical connections between rigid parts. They are viscoelastic and can take up the differential thermal expansion of precision optical parts without inducing excessive stresses or delamination.
Nye's optical gels and fluids are ultraclean, non-yellowing, and unaffected by x-ray, ultraviolet, or sunlight exposure. They have extremely low outgassing and volatility characteristics, and are free from light-absorbing microscopic particulates. Formulated with chemically stable, non-toxic, wide-temperature synthetic materials, Nye's optical products are designed for reliability and long service life.