35-501 25.4mm Dia. x 25.4mm EFL; 90° Protected Gold 100A; Off-Axis Parabolic Mirror Protected Gold 700-10000nm

The 35-501 is a high-quality Off-Axis Parabolic Mirror, sourced from the renowned optical vendor, Edmund Optics. This mirror, with a diameter of 25.4mm, 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 defined by a 12.7mm PFL (Pupil Fill Length), a 25.4mm EFL (Effective Focal Length), and a 90° off-axis angle. The off-axis design allows for superior optical performance in systems where a conventional parabolic mirror would introduce aberrations. The mirror's radius of curvature is 25.4mm, and its aperture (a) is 31.75mm, providing a generous optical working distance.

The mirror is crafted from N-BK7 Schott glass, a material known for its excellent optical properties and high damage threshold. The front surface of the mirror is coated with EDM PRGold 700-10000, a protected gold coating that enhances its reflectivity in the specified wavelength range. This coating is designed to withstand harsh environmental conditions, ensuring the mirror's longevity and reliability.