OptoSigma presents the TFA-130C18-4, a 130 mm diameter circular metallic mirror with a thickness of 18 mm. This mirror is made of n-BK7 glass from Schott, a material well-known for its excellent optical properties. The mirror features a hard glass front surface, which is coated with Opt TFA aluminum and protected by a magnesium fluoride (MgF2) layer, offering a high reflectivity of 45% at the specified wavelength of 588 nm.
The mirror's thin lens shape and λ/4 (quarter-wave) surface quality make it an ideal choice for various applications demanding high-quality reflective surfaces. Its robust design ensures longevity and stability, making it suitable for use in optical systems exposed to harsh environments. The TFA-130C18-4 is currently in stock and available for purchase through the OptoSigma website, as indicated by its valid weblink status.