SLB-08B-20PIR2 8.0 mm Dia. x 20.4 mm FL; Coated; Double-Convex Lens 750-1550nm

The SLB-08B-20PIR2 is a high-quality double-convex lens, designed and manufactured by OptoSigma. This lens is specifically engineered for use within the wavelength range of 750-1550nm, making it suitable for a variety of applications within the infrared spectrum.

The lens boasts a base shape of a circle, with a diameter of 8.0 mm and a thickness at the edge of 1.5 mm. The center thickness of the lens is 2.3 mm, providing a robust structure that can withstand typical use. The effective focal length (EFL) of the lens is 20.4 mm, which is a critical specification for determining the lens's magnification and field of view.

The lens is made from n-bk7 schott, a popular material for optical lenses due to its excellent optical properties and durability. The lens features a double-convex geometry, with radii of curvature of 20.76 mm for the first surface and -20.76 mm for the second surface. This geometry, combined with the lens's material, provides superior optical performance.

The SLB-08B-20PIR2 is coated with opt ir2 on both the front and back surfaces. This coating enhances the lens's performance by reducing reflection and increasing transmission within the specified wavelength range. The coating also provides protection against environmental factors, ensuring the longevity of the lens.