SLB-15-100NIR2 15.0 mm Dia. x -100.0 mm FL; Coated; Plano-Concave Lens 750-1550nm

The SLB-15-100NIR2 is a plano-concave lens with a diameter of 15.0 mm and a focal length of -100.0 mm, making it ideal for applications that require a negative focal length. This lens is sourced from OptoSigma, a renowned vendor in the optical industry, and is available for purchase on their website.

The lens is made from n-bk7 schott, a high-quality optical glass known for its excellent transparency and low auto-fluorescence. The base shape of the lens is circular, and it features a planar surface on one side and a concave surface on the other. The planar surface has a thickness of 2.5 mm at the edge and 2.0 mm at the center, while the concave surface has a radius of curvature of -51.9 mm.

The lens is coated with Opt IR2, a broadband anti-reflection coating designed for use in the 750-1550nm wavelength range. This coating reduces surface reflections, improving the overall transmission of the lens. The coating is applied to both the front and back surfaces of the lens.

The lens is spherical in shape, meaning it has a constant radius of curvature throughout its surface. This shape is commonly used in optical systems due to its simplicity and ease of manufacturing. The lens's geometry is designed to provide a high level of optical performance, making it suitable for a wide range of applications.