SLB-40B-50PIR1 40.0 mm Dia. x 51.7 mm FL; Coated; Double-Convex Lens 633-1064nm

The SLB-40B-50PIR1 is a high-quality lens offered by OptoSigma, designed for use in the 633-1064nm 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 40.0 mm and a thickness edge of 2.0 mm, ensuring durability and stability. The thickness center is 10.0 mm, indicating a substantial lens body that can withstand handling and mounting. The effective focal length (EFL) of this lens is 51.7 mm, making it suitable for various optical systems.

The first radius of curvature (R1) is 51.9 mm, while the second radius (R2) is -51.9 mm, indicating a double-convex lens design. The back focal length (BFL) is 48.3 mm, which is crucial for determining the position of the lens in an optical system. The inner and outer radii are both 0 mm, suggesting a symmetrical lens design.

The lens is made of n-bk7 schott material, a popular choice for its excellent optical properties and versatility. The coating on both the front and back surfaces is opt ir1, which is specifically designed for the 633-1064nm wavelength range, enhancing the lens' performance and durability.