SLB-50.8-90NIR1 50.8 mm Dia. x -90.0 mm FL; Coated; Plano-Concave Lens 633-1064nm

This is a Plano-Concave Spherical Lens, model SLB-50.8-90NIR1, manufactured by OptoSigma. The lens has a diameter of 50.8 mm and a focal length of -90.0 mm, making it suitable for a variety of optical applications. The lens is made of n-bk7 schott material, a popular choice for its high refractive index and low dispersion.

The lens features a plano-concave geometry, meaning one side is flat while the other is curved inward. The curvature of the concave side is defined by a radius of -46.71 mm, and the back focal length is -92 mm. The edge thickness of the lens is 10.5 mm, while the center thickness is 3 mm.

The SLB-50.8-90NIR1 is coated with opt ir1 on both the front and back surfaces. This coating enhances the lens's performance in the 633-1064nm wavelength range, making it ideal for use in near-infrared (NIR) applications.

Please note that the lens is designed to be used with a collimated beam, and the beam should be incident on the concave side of the lens. The flat side, or the plano side, should be facing the source of the beam.

This lens is currently in stock and available for immediate shipping. For more information, including detailed specifications and pricing, please refer to the vendor's website using the provided weblink.