This is the G314003400 10 mm Dia. N-BK7 Plano-Concave Lens, a high-quality optical component sourced from Qioptiq Photonics. The lens, which has a negative focal length (EFL) of -10mm, is designed for use in a variety of optical systems where a concave lens is required.
The lens is made from N-BK7, a popular optical glass known for its excellent optical properties. It has a diameter of 10mm and a center thickness of 1mm. The lens's geometry is plano-concave, meaning one side is flat while the other is curved inward. The radius of curvature for the curved surface is -5.168mm.
The lens is coated with Qio Silver RAGV 45 on both the front and back surfaces, enhancing its performance in the specified wavelength of 588nm. This coating helps to reduce reflection and increase transmission, making the lens suitable for use in high-precision optical applications.
The lens is available for purchase directly from the Qioptiq Photonics website, where it is listed as in stock. The website also provides further technical specifications and application examples for this lens.