SLB-20B-90PIR2 20.0 mm Dia. x 90.5 mm FL; Coated; Double-Convex Lens 750-1550nm

The SLB-20B-90PIR2 is a high-quality lens offered by OptoSigma, designed for use in the 750-1550nm wavelength range. This lens is a Spherical Lens (Convex-Convex) type, featuring a base shape of Circular for versatile application.

The lens has a diameter of 20.0 mm, with a thickness edge of 2.0 mm and a thickness center of 3.1 mm. The effective focal length (EFL) is 90.5 mm, providing a clear and focused image. The first radius of curvature (R1) is 93.42 mm, while the second radius of curvature (R2) is -93.42 mm, indicating a double-convex lens design. The back focal length (BFL) is 89.5 mm, and both the inner and outer radii are 0 mm.

The lens is made of n-bk7 schott material, a common and reliable choice for optical applications. It features a coating of opt ir2 on both the front and back surfaces, enhancing its performance in the specified wavelength range. The shape of the lens is spherical, ensuring excellent optical quality.

According to the vendor's website, this item is currently in stock, making it readily available for immediate use. The website link provided is valid, offering more detailed information and specifications for this product.