SLSQ-40B-80N 40.0 mm Dia. x -79.7 mm FL; Double-Concave Lens Uncoated

The SLSQ-40B-80N is a high-quality, double-concave lens offered by OptoSigma, a leading vendor in the optical industry. This lens, designed for use in a wide range of optical systems, boasts a 40.0 mm diameter and a significant focal length of -79.7 mm, making it suitable for applications requiring substantial optical power.

The lens is fabricated from fused silica, a material known for its excellent optical properties, including high transparency across a broad spectrum, making it an ideal choice for various wavelengths. The base shape of the lens is circular, and it features a spherical geometry with radii of curvature of -73.6 mm and 73.6 mm for the first and second surfaces, respectively.

The lens has a center thickness of 2 mm and an edge thickness of 7.5 mm, providing robustness and durability. Despite its robust construction, the lens remains lightweight, making it suitable for use in portable or handheld devices.

The SLSQ-40B-80N is delivered uncoated, offering users the flexibility to apply the coating that best suits their specific application requirements. However, it's important to note that the uncoated version may have higher surface reflection, which could affect the overall system performance.