This is a 6 mm diameter Plano-Concave lens, manufactured by Qioptiq Photonics, a renowned provider of precision optics. The lens is made of N-BK7, a popular glass type known for its excellent optical properties, and is mounted for ease of use.
The lens features a negative focal length (EFL) of -10mm, making it suitable for applications that require light convergence. It is designed to work within the wavelength range of 450-700nm, which covers the visible light spectrum, making it ideal for various optical systems in this range.
The lens's geometry includes a 1mm thickness at the center, with the inner and outer radii being 0. This suggests a simple, straightforward design that is easy to integrate into optical systems.
The lens is coated with qio bbar arb2visnbk7 on both the front and back surfaces. This coating enhances the lens's performance by reducing reflection and increasing transmission, which is particularly beneficial in applications where high light throughput is required.