35-561 76.2mm Dia. x 101.6mm EFL; 60° Protected Gold 100A; Off-Axis Parabolic Mirror Protected Gold 700-10000nm

The 35-561 is a high-quality Off-Axis Parabolic Mirror, sourced from the renowned optical vendor, Edmund Optics. This mirror, with a diameter of 76.2mm and a PFL of 76.2mm, is designed for use in the 700-10000nm wavelength range, making it suitable for a wide range of applications, particularly in infrared (IR) systems.

The mirror's geometry is carefully crafted, featuring an EFL (Effective Focal Length) of 101.6mm and an off-axis angle of 60°. This specific design allows for superior light collection and focusing, enhancing the overall performance of the optical system. The mirror's radius of curvature is 152.4mm, and its aperture (a) is 51.61mm, further contributing to its exceptional optical properties.

The mirror is made from N-BK7 Schott, a high-grade optical glass known for its excellent optical properties and durability. The front surface of the mirror is coated with EDM PRGold 700-10000, a protected gold coating that ensures high reflectivity across the entire operational wavelength range. This coating also provides excellent environmental stability, ensuring the mirror's performance over time.