This is the G052115331 model from Qioptiq Photonics, a 12.7 mm diameter Plano-Convex lens made of N-BK7 glass. The lens has a focal length (EFL) of 150mm, making it suitable for a wide range of optical applications.
The lens features a spherical geometry with a thickness of 2.7mm at the edge and 3mm at the center. The front and back surfaces are coated with "qio al ralvis aoi 45", which is designed to enhance the lens' performance in specific wavelengths.
The lens is mounted, making it ready for immediate use in your optical system. The vendor, Qioptiq Photonics, provides a valid link to their website where you can find more information about this product, including its availability in stock.
With its high-quality N-BK7 glass and precise manufacturing, this Plano-Convex lens is an excellent choice for various optical applications.