G311711000 31.5 mm Dia. UVFS Double-Convex Lens; EFL=30mm Uncoated

The G311711000 is a 31.5 mm diameter double-convex lens, manufactured by Qioptiq Photonics. This lens, designed for use in the ultraviolet spectrum at a wavelength of 355 nm, is uncoated and features a high degree of symmetry, with both faces of the lens being convex.

The lens has an effective focal length (EFL) of 30 mm, which is the distance from the lens's secondary principal plane to the focal point when the lens is imaging an object at infinity. This EFL, combined with the lens's diameter, contributes to a high numerical aperture, making it suitable for a wide range of applications that require high resolution and light gathering capability.

The lens's geometry is defined by its edge thickness of 2 mm and center thickness of 11.5 mm. The curvature of the lens is specified by its radii of curvature, R1 and R2, which are 28.49 mm and -28.49 mm respectively. The negative sign for R2 indicates that the second surface of the lens is concave. The lens's inner and outer radii are both zero, indicating that the lens is a simple double-convex lens without any additional features such as threads or mounts.

The lens is made from UVFS, a type of fused silica, which is known for its excellent optical properties, including high transparency in the ultraviolet range, low autofluorescence, and high resistance to thermal shock and chemical attack. The material ID for this lens is UVFS mal- 1965.

According to the vendor's website, this lens is in stock and available for immediate purchase. Further information, including pricing and shipping details, can be found at the provided weblink.