SLB-10B-20N 10.0 mm Dia. x -19.7 mm FL; Double-Concave Lens Uncoated

The SLB-10B-20N is a high-quality double-concave lens offered by OptoSigma, a leading vendor in the optical industry. This lens, designed with a spherical shape, is crafted from n-BK7 Schott, a renowned optical glass known for its excellent optical properties.

The lens boasts a diameter of 10.0 mm, making it suitable for applications requiring compact optical components. The edge thickness is 3.2 mm, while the center thickness is 2.0 mm, providing a robust structure that can withstand typical handling and usage.

The SLB-10B-20N has an effective focal length (EFL) of -19.7 mm, indicating its double-concave nature. This characteristic is further emphasized by its radii of curvature, R1 and R2, which are -20.76 mm and 20.76 mm, respectively. The back focal length (BFL) is -20.3 mm, and the lens has no inner or outer radius, indicating a uniform curvature throughout.

This lens is designed to operate at a wavelength of 546.1 nm, making it suitable for a wide range of applications in the visible light spectrum. Notably, the lens is uncoated, offering users the flexibility to apply their preferred coating based on their specific application requirements.