SLB-25B-35PIR2 25.0 mm Dia. x 36.1 mm FL; Coated; Double-Convex Lens 750-1550nm

The SLB-25B-35PIR2 is a spherical lens with a base shape of a circle, offering a diameter of 25.0 mm and a focal length of 36.1 mm. This lens is sourced from OptoSigma, a renowned vendor in the optical industry. The lens is designed for use within the wavelength range of 546.1 nm, making it suitable for a variety of optical applications.

The lens features a double-convex geometry, with radii of curvature of 36.33 mm for the first surface and -36.33 mm for the second surface. This geometry contributes to the lens's overall thickness, which measures 2.0 mm at the edge and 6.4 mm at the center. The back focal length of the lens is 33.9 mm, while the effective focal length is 36.1 mm.

The SLB-25B-35PIR2 is constructed from n-BK7 Schott, a high-quality optical glass known for its excellent transparency and low auto-fluorescence. This material makes the lens suitable for use in a wide range of applications, including those that require high precision and clarity.

The lens is coated with Opt IR2 on both the front and back surfaces. This coating enhances the lens's performance within the infrared spectrum, specifically within the 750-1550 nm range. The coating improves the lens's transmission characteristics, reduces surface reflections, and increases overall system efficiency.