This is a mounted plano-convex lens, type G063043331, with a diameter of 22.4 mm. It is made of N-BK7, a popular optical glass from Schott, which is known for its excellent optical properties and wide transparency range. The lens has an effective focal length (EFL) of 40mm, making it suitable for a variety of applications that require moderate magnification.
The lens geometry includes a thickness of 1.7mm at the edge and 5mm at the center. The front surface of the lens has a radius of curvature of 20.833mm, while the back surface is flat. The lens is coated with Qio AL RALVIS AOI 45 on both the front and back surfaces, which enhances its transmission and reduces reflection, especially in the visible spectrum around 588nm.
This lens is spherical in shape, which is a common choice for many optical systems due to its ease of manufacturing and good optical performance. The lens is mounted, which means it is ready to be integrated into an optical system, saving users the time and effort of mounting it themselves.
According to the vendor, Qioptiq Photonics, this lens is in stock and available for immediate purchase. The vendor's website also provides more detailed specifications and application examples.