47-911 25mm Dia. x -25 FL; VIS 0deg Coated; Plano-Concave Lens 425-675nm

The 47-911 is a Plano-Concave Spherical Lens, a type of optical element that refracts light to a single focal point. This lens, sourced from Edmund Optics, boasts a 25mm diameter and a focal length of -25mm, making it suitable for a wide range of applications.

The lens is crafted from n-sf11 Schott, a high-index glass with excellent transmittance across the visible spectrum. This material choice ensures high-quality imaging and minimal optical aberrations. The lens's geometry includes a 7.41mm thickness at the edge and a 3.5mm thickness at the center, providing a balanced structure for efficient light transmission.

The 47-911 features a standard coating on both the front and back surfaces. This coating, identified as 'edm vis-0 std curve', is designed to enhance the lens's performance within the visible light spectrum (425-675nm). It provides improved light transmission, reduced surface reflections, and increased durability, making it an excellent choice for various optical systems.