45-167 40mm Dia. x 60mm FL Uncoated; Double-Convex Lens

The 45-167 is a 40mm diameter, double-convex lens with a 60mm focal length, sourced from the reputable optical vendor, Edmund Optics. This lens, identified by the product code 5657, is a spherical lens, specifically designed with a convex-convex base shape, ensuring a high degree of curvature for precise optical applications.

The lens's geometry is meticulously crafted, with a thickness of 2mm at the edge and 8.8mm at the center, providing a robust structure while maintaining a sleek profile. The effective focal length (EFL) is 60mm, making it suitable for a wide range of optical systems. The first radius of curvature (R1) is 60.56mm, and the second radius of curvature (R2) is -60.56mm, indicating the lens's double-convex design. The back focal length (BFL) is 57.1mm, contributing to the lens's overall optical performance.

The lens is made from the high-quality material N-BK7 Schott, a borosilicate glass known for its excellent optical properties, including a low refractive index and low dispersion. This material ensures high light transmission and minimal chromatic aberration, making it ideal for various applications.

The lens is uncoated, meaning it does not have any anti-reflective or other surface treatments. While this may result in a higher reflective index, it also allows for greater customization, as users can apply coatings based on their specific requirements.