This is a 25.4 mm diameter Plano-Convex lens, type G063826000, manufactured by Qioptiq Photonics. The lens is made of N-BK7, a popular optical glass from Schott, and features an uncoated surface. The lens's design includes a convex shape on one side and a flat surface on the other, with a thickness of 3.5 mm at the edge and 4 mm at the center.
The effective focal length (EFL) of this lens is 300mm, making it suitable for various applications that require a long focal length. The lens's inner and outer radii are 0, and the curvature radius (R1) is 153.99 mm. This lens is designed to operate at a wavelength of 588 nm.
The item data indicates that this lens is mounted, suggesting that it is ready for immediate use in optical systems. The web link provided with the item data leads to Qioptiq Photonics' website, where users can find more information about this product, including its availability and pricing.