SLB-10-40NIR2 10.0 mm Dia. x -40.0 mm FL; Coated; Plano-Concave Lens 750-1550nm

The SLB-10-40NIR2 is a plano-concave lens with a diameter of 10.0 mm and a focal length of -40.0 mm, specifically designed for use in the spectral range of 750-1550nm. This lens is sourced from OptoSigma, a renowned vendor known for their high-quality optical elements.

The lens is made of n-bk7 schott, a popular material in the optical industry due to its excellent optical properties. The plano-concave geometry, characterized by a flat front surface and a curved back surface, is ideal for applications that require light collimation or dispersion.

The lens features a front and back coating of opt ir2, which enhances its performance in the infrared region of the spectrum. This coating reduces reflection and increases transmission, making the lens suitable for use in high-precision optical systems.

The geometry of the lens includes a thickness edge of 2.6 mm and a thickness center of 2 mm. The effective focal length (EFL) is -40.0 mm, and the radius of curvature of the back surface is -20.76 mm. The back focal length (BFL) is -41.3 mm.

The lens is circular in shape, with an inner radius and outer radius of 0 mm, indicating that it has no peripheral curvature. This makes it suitable for use in systems where a flat field of view is required.