SLB-60B-120P 60.0 mm Dia. x 121.7 mm FL; Double-Convex Lens Uncoated

The SLB-60B-120P is a high-quality double-convex lens, sourced from the reputable optical vendor, OptoSigma. This lens, with a base shape of a circle, is designed for use in a wide range of optical applications, thanks to its precise geometry and material composition.

The lens has a diameter of 60.0 mm and a center thickness of 10.3 mm, ensuring a substantial light-gathering capacity. The edge thickness is 3.0 mm, providing structural rigidity and resistance to deformation. The effective focal length (EFL) of this lens is 121.7 mm, making it suitable for applications that require moderate magnification and a relatively long focal length.

The lens is made of n-BK7 Schott, a popular optical glass due to its excellent optical properties, including a high Abbe number and low dispersion. This makes the lens ideal for applications that require high image quality and color correction, such as imaging systems, beam shaping, and laser applications.

The radii of curvature for the first and second surfaces of the lens are 124.56 mm and -124.56 mm, respectively. This double-convex design provides a wide field of view and low spherical aberration, contributing to the lens's high image quality. The back focal length (BFL) of the lens is 118.3 mm, which should be considered when designing the optical system to ensure sufficient clearance for the detector or other optical elements.

This lens is uncoated, meaning it does not have any anti-reflective coatings. While this may result in higher reflective losses, it can be advantageous in applications where broadband transmission is required, or where the user prefers to apply their own custom coatings.