SLB-15B-30P 15.0 mm Dia. x 30.6 mm FL; Double-Convex Lens Uncoated

The SLB-15B-30P is a high-quality double-convex lens offered by OptoSigma, a renowned vendor in the optical industry. This lens, with a base shape of a circle, is designed for use in a wide range of optical applications.

The lens features a diameter of 15.0 mm and a center thickness of 3.8 mm, ensuring a robust and durable construction. The edge thickness is 2.0 mm, providing additional strength and resistance to wear and tear. The effective focal length (EFL) of this lens is 30.6 mm, making it suitable for applications requiring a moderate focal length.

The lens is made from n-BK7 Schott, a popular optical glass known for its excellent optical properties. This material ensures high transmittance and low dispersion, making it ideal for various applications, including imaging, beam shaping, and laser systems.

The curvature of the lens is defined by its first and second radii of curvature, which are 31.14 mm and -31.14 mm, respectively. These radii contribute to the lens's double-convex shape, which is designed to focus light efficiently. The back focal length (BFL) of this lens is 29.4 mm, which is the distance from the lens's rear surface to the focus point.

This lens is uncoated, meaning it does not have any anti-reflective coatings. While this may result in a higher reflectance at the air-glass interfaces, it also means the lens is more cost-effective and versatile, as it can be used in a wide range of wavelengths without the risk of coating damage.