SLB-20B-120PIR2 20.0 mm Dia. x 120.5 mm FL; Coated; Double-Convex Lens 750-1550nm

The SLB-20B-120PIR2 is a high-quality lens offered by OptoSigma, designed for use in the 750-1550nm wavelength range. This lens, with a diameter of 20.0 mm and a focal length of 120.5 mm, is a spherical lens of the convex-convex type, featuring a base shape that is circular.

The lens has a front and back coating of opt IR2, providing excellent optical performance. The geometry of the lens includes a thickness of 2.0 mm at the edge and 2.8 mm at the center, with an effective focal length (EFL) of 120.5 mm. The radii of curvature are R1 = 124.56 mm and R2 = -124.56 mm, while the back focal length (BFL) is 119.5 mm. The lens is made of n-bk7 schott material, a popular choice for its excellent optical properties.

This lens is currently in stock and available for immediate purchase, as indicated by its weblink status. For more information, users are encouraged to visit the provided weblink, which provides a detailed product description and purchasing options.