SLB-30-250NIR2 30.0 mm Dia. x -250.0 mm FL; Coated; Plano-Concave Lens 750-1550nm

The SLB-30-250NIR2 is a Plano-Concave Spherical Lens, 30.0 mm in diameter and featuring a focal length of -250.0 mm. This lens is sourced from OptoSigma, a renowned vendor in the optical industry. The lens is made of n-bk7 schott, a high-quality material known for its excellent optical properties.

The lens's geometry includes a thickness edge of 2.9 mm and a thickness center of 2 mm, providing a robust structure. The inner and outer radii are both 0 mm, indicating a flat surface on one side and a concave surface on the other. The lens's effective focal length (EFL) is -251.3 mm, and its radius of curvature (R1) is -129.75 mm.

The SLB-30-250NIR2 is coated with opt ir2 on both the front and back surfaces, enhancing its performance in the 750-1550nm wavelength range. This coating ensures optimal transmission and reduces reflection, making it suitable for various applications in the near-infrared spectrum.