G313375525 12.7 mm Dia. N-BK7 Double-Concave Lens; EFL=-100mm 725-1050nm

This is a G313375525 model double-concave lens, sourced from the reputable optical components vendor, Qioptiq Photonics. The lens is characterized by its spherical shape and circular base, with a diameter of 12.7 mm. It has a center thickness of 1.5 mm and an effective focal length (EFL) of -100 mm, making it suitable for a wide range of optical applications.

The lens is made from N-BK7, a high-quality borosilicate glass known for its excellent optical properties. This material is identified by the Material ID [n-bk7 schott] in the item data. The double-concave geometry of the lens is defined by its first and second radii of curvature, R1 and R2, which are -104.41 mm and 104.41 mm respectively.

The lens is coated with a broadband anti-reflection coating, specifically the Qio Bbar Arb2nirnbk7 coating, on both the front and back surfaces. This coating is designed to reduce surface reflections and increase transmission within the wavelength range of 725-1050 nm.

The item data also indicates that this lens is in stock and available for purchase. For more detailed information, including technical specifications and purchasing options, please refer to the vendor's website using the provided weblink: https://www.qioptiq-shop.com/en/Precision-Optics/Singlets/Symmetric-Concave-Lenses/Symmetric-concave-lenses-unmounted-N-BK7.html