This is a G313375329 12.7 mm diameter N-BK7 double-concave lens, specifically designed for use with a wavelength of 588 nm and an effective focal length (EFL) of -100 mm. The lens is sourced from Qioptiq Photonics, a renowned vendor in the field of precision optics.
The lens is spherical in shape, with a base shape of circular. The first radius of curvature (R1) is -104.41 mm, while the second radius of curvature (R2) is 104.41 mm. The lens has a center thickness of 1.5 mm. The inner and outer radii are both 0 mm, indicating a symmetrical concave-concave design.
The lens is made from N-BK7, a popular glass type in the optical industry known for its excellent optical properties. This particular lens features anti-reflective coatings on both the front and back surfaces, specifically the Qio HP Nbar ARHS-YAG coating. This coating is designed to reduce surface reflections and increase transmission at the specified wavelength of 588 nm.
The lens is currently in stock and available for purchase. For more information, including pricing and delivery details, please refer to the provided web link.