This is a G063070331 22.4 mm Dia. N-BK7 Mounted Plano-Concave Lens, with a focal length (EFL) of -40mm. 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. It has a diameter of 22.4mm and a center thickness of 1.5mm. The inner and outer radii are both zero, indicating a plano-concave design. The focal length of -40mm suggests a strong converging capability.
The lens is made of N-BK7, a popular glass type in the optical industry known for its excellent optical properties. It is designed to operate at a wavelength of 588nm.
The lens comes with a coating on both the front and back surfaces. The coating is Qio AR Al RALVIS AOI 45, which is designed to reduce reflection and improve transmission.
The item data also indicates that this lens is in stock and available for immediate purchase. For more detailed information, please refer to the vendor's website using the provided weblink.