
The SLB-50.8B-90P is a high-quality double-convex lens, boasting a diameter of 50.8 mm and a focal length of 91.6 mm. This lens is sourced from OptoSigma, a renowned vendor known for their precision optical elements.
The lens is crafted from n-bk7 schott, a material widely recognized for its excellent optical properties. The base shape of the lens is circular, and it features a spherical geometry, with a center thickness of 9.8 mm and an edge thickness of 2.8 mm. The lens has an inner radius of 0 mm and an outer radius of 0 mm, further emphasizing its double-convex design.
The effective focal length (EFL) of the lens is 91.6 mm, and its back focal length (BFL) is 88.3 mm. The first radius of curvature (R1) is 93.42 mm, while the second radius of curvature (R2) is -93.42 mm, indicating the lens's convex-convex structure.
Notably, the lens is uncoated, offering users the flexibility to apply their preferred coating based on their specific application requirements. The lens is currently in stock and can be purchased directly from the vendor's website.