SLB-25.4B-30P 25.4 mm Dia. x 31.2 mm FL; Double-Convex Lens Uncoated

The SLB-25.4B-30P is a high-quality double-convex lens offered by OptoSigma, a renowned vendor in the optical industry. This lens, designed for use in various optical systems, boasts a diameter of 25.4 mm and a focal length of 31.2 mm, making it a versatile choice for a wide range of applications.

The lens is made from n-BK7 Schott, a popular optical glass known for its excellent optical properties. This material ensures high transmittance and low dispersion, making it ideal for applications that require high image quality and color fidelity. The lens is uncoated, which means it does not have any additional layers to enhance its optical properties. However, this does not affect its performance in many applications where anti-reflection coatings are not necessary.

The geometry of the lens is defined by its edge thickness of 1.8 mm and center thickness of 7.2 mm. The lens's inner and outer radii are both 0 mm, indicating a symmetrical design. The effective focal length (EFL) is 31.2 mm, and the back focal length (BFL) is 28.7 mm. The radius of curvature for the first and second surfaces are 31.14 mm and -31.14 mm, respectively, indicating a biconvex lens shape.