G063874400 25.4 mm Dia. N-BK7 Mounted Plano-Concave Lens; EFL=-500mm

This is the G063874400 25.4 mm Dia. N-BK7 Mounted Plano-Concave Lens, a high-quality optical component sourced from Qioptiq Photonics. The lens, which has a plano-concave shape, is designed for use with a wavelength of 588 nm and is made from N-BK7 glass, a popular choice due to its excellent optical properties and wide transparency range.

The lens has a diameter of 25.4 mm and a center thickness of 1.5 mm. The effective focal length (EFL) is -500mm, indicating that it is a diverging lens, which spreads out light rays. The radius of curvature (R1) is -260.39mm, while the inner and outer radii are both 0mm, suggesting a simple, single-concave design.

The lens is coated with Qio Silver RAGV 45 on both the front and back surfaces, which enhances its light transmission capabilities and protects it from environmental damage. This coating is designed to provide high reflectivity and low absorption across a wide range of wavelengths, making it suitable for use in a variety of optical systems.

The lens is mounted, which means it is ready for immediate use in optical systems. The vendor, Qioptiq Photonics, is a reputable supplier of precision optics, ensuring that this lens meets high standards of quality and performance.

For more information, including pricing and availability, please refer to the vendor's website using the provided weblink.