The SLB-15-30NIR2 is a Plano-Concave Spherical Lens, 15.0 mm in diameter and featuring a focal length of -30.0 mm. This lens is sourced from OptoSigma, a renowned vendor in the optical industry. The lens is made from n-bk7 schott, a high-quality material known for its excellent optical properties.
The lens's geometry is meticulously designed, with an edge thickness of 3.9 mm and a center thickness of 2 mm. The effective focal length (EFL) is -30.0 mm, and the radius of curvature (R1) is -15.57 mm. The back focal length (BFL) is -31.3 mm, and both the inner and outer radii are 0 mm.
This lens is designed to operate within the wavelength range of 546.1 nm. It comes with a coating on both the front and back surfaces, specifically an opt ir2 coating, which enhances its performance within the 750-1550nm spectral range.