SLB-25B-80NIR1 25.0 mm Dia. x -79.7 mm FL; Coated; Double-Concave Lens 633-1064nm

The SLB-25B-80NIR1 is a high-quality double-concave lens, designed with a base shape of a circle, and a diameter of 25.0 mm. This lens is sourced from OptoSigma, a renowned vendor known for its precision optical components. The lens features a significant focal length of -79.7 mm, making it suitable for a wide range of applications that require concave lenses.

The lens is made from n-bk7 schott, a material well-known for its excellent optical properties. This material ensures high light transmission and low optical dispersion, making it ideal for applications that require high-precision optics.

The SLB-25B-80NIR1 is coated with opt ir1 on both the front and back surfaces. This coating enhances the lens's performance by reducing reflection and increasing transmission in the 633-1064nm wavelength range. The coating also provides protection against environmental factors, ensuring the lens maintains its performance over time.

The lens's geometry is carefully designed to provide optimal performance. The edge thickness is 4 mm, while the center thickness is 2 mm. The lens's effective focal length (EFL) is -79.7 mm, and the back focal length (BFL) is -80.3 mm. The inner and outer radii are 0, indicating a symmetrical design.