SLSQ-40B-90N 40.0 mm Dia. x -89.7 mm FL; Double-Concave Lens Uncoated

The SLSQ-40B-90N is a high-quality, double-concave lens offered by OptoSigma. This lens, with a diameter of 40.0 mm, is designed for use in a wide range of optical applications. The lens's base shape is circular, and it features a double-concave geometry, making it suitable for applications requiring a negative lens.

The lens has a center thickness of 2.0 mm and an edge thickness of 6.9 mm, providing excellent structural integrity. The effective focal length (EFL) of this lens is -89.7 mm, and the back focal length (BFL) is -90.3 mm, indicating a strong converging power. The radii of curvature for the first and second surfaces are -82.8 mm and 82.8 mm, respectively.

The lens is made from fused silica, a material known for its excellent optical properties, including high transparency and resistance to thermal shock. This makes the lens suitable for use in high-power laser applications. The lens is uncoated, offering users the flexibility to apply their preferred coating based on their specific application requirements.

The lens is designed to work with a wavelength of 546.1 nm, making it suitable for use in a wide range of applications, from scientific research to industrial inspection. The lens is currently in stock and available for immediate purchase, as indicated by its valid web link status.