SLB-05-25PIR2 5.0 mm Dia. x 25.0 mm FL; Coated; Plano-Convex Lens 750-1550nm

The SLB-05-25PIR2 is a Plano-Convex Spherical Lens, sourced from OptoSigma, designed for use within the wavelength range of 750-1550nm. This lens boasts a circular base shape, with a diameter of 5.0 mm and a thickness of 1.1 mm at the edge, transitioning to 1.4 mm at the center. The effective focal length (EFL) of this lens is 25 mm, making it suitable for a variety of optical applications.

The lens's front and back surfaces are coated with Opt IR2, a specialized coating designed for infrared (IR) applications. This coating enhances the lens's performance within its specified wavelength range, providing improved transmission and reduced reflection.

The lens is fabricated from n-BK7 Schott, a popular optical glass due to its excellent optical properties and versatility. The lens's inner and outer radii are 0, indicating a Plano-Convex geometry, where one surface is flat (Plano) and the other is curved (Convex). The radius of curvature for the curved surface is 12.98 mm.

The back focal length (BFL) of this lens is 24.1 mm, a critical specification for focusing applications. The lens's shape is spherical, ensuring consistent optical performance across the entire surface.