SLB-40B-40P 40.0 mm Dia. x 42.1 mm FL; Double-Convex Lens Uncoated

The SLB-40B-40P is a high-quality double-convex lens, sourced from the reputable optical component manufacturer, 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 40.0 mm and a center thickness of 12.3 mm, ensuring a substantial surface area for light transmission while maintaining structural integrity. The edge thickness is a mere 2.0 mm, minimizing unnecessary material and weight. The effective focal length (EFL) of this lens is 42.1 mm, making it suitable for applications requiring a longer focal length.

The lens is made from n-BK7 Schott, a popular optical glass due to its excellent optical properties and high Abbe number. This material ensures low dispersion and high homogeneity, making it ideal for applications requiring high image quality and color correction.

The SLB-40B-40P is uncoated, meaning it does not have any additional layers to enhance light transmission or protect the surface. However, this does not affect its performance in many applications, and users can always opt for additional coatings based on their specific needs.