SLSQ-15B-20N 15.0 mm Dia. x -19.7 mm FL; Double-Concave Lens Uncoated

The SLSQ-15B-20N is a high-quality double-concave lens offered by OptoSigma, a leading vendor in the optical industry. This lens, designed for use in various optical systems, features a spherical geometry with a diameter of 15.0 mm and a base shape of circular.

The lens's concave-concave design is characterized by its radii of curvature, R1 and R2, which are -18.4 mm and 18.4 mm respectively. This configuration results in a back focal length (BFL) of -20.3 mm and an effective focal length (EFL) of -19.7 mm. The lens's edge thickness measures 5.2 mm, while the center thickness is 2.0 mm, providing a robust structure suitable for various applications.

The SLSQ-15B-20N is fabricated from fused silica, a material known for its excellent optical properties and high damage threshold. This lens, in particular, uses the material mal-1965, ensuring reliable performance and durability.

The lens is uncoated, offering users the flexibility to apply their preferred coating based on their specific application requirements. This lens is designed to work with a wavelength of 546.1 nm, making it suitable for a wide range of optical systems.

The SLSQ-15B-20N is currently in stock and available for immediate purchase through the provided weblink. With its superior quality and versatile specifications, this lens is an excellent choice for those seeking a reliable and high-performing optical component.