SLSQ-25B-40N 25.0 mm Dia. x -39.7 mm FL; Double-Concave Lens Uncoated

The SLSQ-25B-40N is a high-quality double-concave lens offered by OptoSigma, a leading vendor in the optical industry. This lens, designed for use in a variety of optical systems, features a spherical geometry with a diameter of 25.0 mm and a center thickness of 2.0 mm. The lens's edge thickness measures 6.4 mm, providing robustness and durability.

The lens's base shape is circular, and it boasts an effective focal length (EFL) of -39.7 mm, making it suitable for applications requiring strong negative magnification. The radii of curvature for the first and second surfaces are -36.8 mm and 36.8 mm, respectively, contributing to its double-concave design. The back focal length (BFL) is -40.3 mm, which should be considered when integrating this lens into an optical system.

The lens is crafted from fused silica, a material with a high damage threshold and excellent transmission properties across a wide range of wavelengths. This particular lens is uncoated, offering users the flexibility to apply their preferred coating based on their specific application requirements.

The SLSQ-25B-40N is currently in stock and available for immediate purchase through the provided weblink. With its high-quality construction, precise geometry, and versatile design, this lens is an excellent choice for a wide range of optical applications.