The SLB-15B-50P is a 15.0 mm diameter double-convex lens with a focal length of 50.5 mm, sourced from OptoSigma. This lens is made of n-bk7 schott material, a popular choice for its high refractive index and low dispersion. The lens is uncoated, which means it does not have any additional layers to enhance light transmission or protect the surface.
The lens has a center thickness of 3.1 mm and an edge thickness of 2 mm, providing a robust structure. The radii of curvature for the first and second surfaces are 51.9 mm and -51.9 mm respectively, indicating a strongly converging lens. The back focal length is 49.5 mm, and the effective focal length is the same as the focal length at 50.5 mm.
This lens is suitable for applications that require a strong converging lens with a moderate focal length. It can be used in various fields such as imaging, beam shaping, and laser applications. However, due to its uncoated nature, it may not perform optimally in high-intensity light applications or where surface protection is required.
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