Optical Glass Window Piece - Cube Reference Mirror λ/4 Surface for Precision Applications, 1 (7.5 x 0.5 mm)

Made of optical quality artificial crystal, which ensures excellent light transmission and durability. The surface type λ/4@633 nm provides excellent flatness and a minimum parallel difference of less than 30 arcseconds for precise optical applications. Ideal for use in guidance systems and low temperature laboratory observation openings, making it a versatile for various scientific fields. Features a protective bevel of 0.2-0.5mm at 45° to improve and prevent damage during handling and installation. The surface finish of 40/20-60/40 guarantees optimal performance and clarity, making it suitable for high-precision instruments and optical setups.