SLB-15-20N 15.0 mm Dia. x -20.0 mm FL; Plano-Concave Lens Uncoated

The SLB-15-20N is a Plano-Concave Lens with a 15.0 mm diameter and a -20.0 mm focal length, sourced from the reputable vendor OptoSigma. This lens is made of n-BK7 Schott, a high-quality optical glass known for its excellent transparency and low auto-fluorescence.

The lens geometry features a 5.2 mm edge thickness and a 2 mm center thickness, providing robustness and precision. The base shape is circular, ensuring uniform light distribution. The lens is uncoated, offering versatility in various applications, although it may require additional coatings for specific use cases.

The lens's geometry includes an inner radius of 0 mm and an outer radius of 0 mm, indicating a simple, straightforward design. The shape is spherical, which is a common choice for its ease of manufacturing and broad compatibility with various optical systems.

The wavelength for this lens is 546.1 nm, which is within the visible light spectrum. This makes it suitable for applications that involve visible light, such as imaging, beam shaping, and light collimation.