SLB-15B-30N 15.0 mm Dia. x -29.7 mm FL; Double-Concave Lens Uncoated

The SLB-15B-30N is a high-quality double-concave lens offered by OptoSigma, a leading vendor in the optical industry. This lens, designed with a spherical shape, is crafted from n-BK7 Schott, a renowned optical glass known for its excellent transparency and homogeneity.

The lens boasts a diameter of 15.0 mm and a center thickness of 2.0 mm, ensuring a robust and compact design. The edge thickness is 3.8 mm, providing additional durability. The lens's effective focal length (EFL) is -29.7 mm, indicating its double-concave nature, which is further emphasized by its radii of curvature, R1 (-31.14 mm) and R2 (31.14 mm).

The back focal length (BFL) of this lens is -30.3 mm, a critical factor in determining the lens's performance in specific applications. Notably, the lens is uncoated, offering users the flexibility to apply their preferred coating based on their specific requirements.

This lens is currently in stock and available for immediate purchase, making it an ideal choice for those seeking a reliable, high-performance optical component. For more information, please refer to the vendor's website provided in the weblinks section.