84-211 6.0mm Dia. x 21.0mm FL; Plano-Convex Lens Laser V-Coat 1550nm

The 84-211 is a Plano-Convex spherical lens, a type of optical lens featuring one flat surface and one curved surface. This lens boasts a 6.0mm diameter and a focal length of 21.0mm, making it suitable for a wide range of applications. The lens is fabricated from the high-quality material n-BK7 Schott, a borosilicate crown glass known for its excellent optical properties, including high transparency and low dispersion.

The lens is coated with Edmund Optics' Las V-Coat 1550, a proprietary coating designed for use with 1550nm wavelengths. This coating enhances the lens' performance by reducing surface reflections and improving transmission, making it ideal for use in laser applications.

The lens' geometry is carefully designed to ensure optimal performance. The center thickness is 1.42mm, while the edge thickness is 1.0mm, providing a robust and durable structure. The lens' inner and outer radii are 0mm, indicating a uniform curvature. The back focal length is 20.06mm, and the effective focal length is 21.0mm, which are crucial specifications for determining the lens' focusing capabilities.

This lens is available from Edmund Optics and is currently in stock, making it a readily available option for those in need of a high-quality, 1550nm lens. The provided web link offers more information and the opportunity to purchase this product directly from the vendor.