This is a 50.8mm diameter Off-Axis Parabolic Mirror, sourced from the renowned optical components vendor, Edmund Optics. The mirror boasts a high-quality EDM DBaregoldmodifie coating on the front surface, ensuring excellent reflectivity and durability. The mirror's off-axis angle is 15 degrees, and it has a focal length of 304.8mm, resulting in an effective focal length of 310.08mm. The mirror's geometry is designed for superior optical performance, with a radius of curvature of 609.6mm and a shape that deviates from the standard parabolic shape to accommodate off-axis applications. The mirror is made from N-BK7 Schott glass, a material known for its excellent optical properties and versatility. This mirror is designed to operate at a wavelength of 588nm, making it suitable for a wide range of optical applications. The item data indicates that it is in stock, ensuring prompt delivery upon order.