G313249000 40 mm Dia. N-BK7 Double-Concave Lens; EFL=-500mm Uncoated

The G313249000 is a 40 mm diameter, double-concave lens made from N-BK7 glass, a popular choice in the optical industry due to its excellent optical properties. This lens is uncoated and features a focal length of -500mm, making it suitable for a wide range of applications where a negative focal length is required.

The lens's geometry includes a center thickness of 2mm, and its concave surfaces have radii of -523.3mm and 523.3mm respectively. The lens is designed to be symmetric, which can be beneficial in certain applications where uniform dispersion is required. The lens's inner and outer radii are both zero, indicating a uniform curvature across the lens's surface.

This lens is sourced from Qioptiq Photonics, a reputable vendor known for their high-quality optical components. The lens is currently in stock and can be purchased directly from the vendor's website. The provided weblink leads directly to the product page for easy access and purchase.

Please note that this lens is uncoated, which may affect its performance in certain applications, particularly those involving high-intensity light sources or extreme environmental conditions. However, the lens's high-quality N-BK7 glass and precise manufacturing should ensure reliable performance in most applications.