38-419 18.0mm Dia. x 30.0mm FL; NIR II Coated; Plano-Convex Lens NIR II 750-1550nm

This is a Plano-Convex lens, type 38-419, with a diameter of 18.0mm and a focal length of 30.0mm, specifically designed for use in the near-infrared (NIR) spectrum, covering the wavelength range of 750-1550nm. The lens is sourced from the reputable vendor, Edmund Optics.

The lens is made of the high-quality material, N-BK7 Schott, a borosilicate crown glass known for its excellent optical properties, including high transmittance and low dispersion. This makes it ideal for applications that require high-resolution imaging and precise light control.

The lens features a plano-convex geometry, where one side is flat (plano) and the other side is curved (convex). This design allows for a wide range of applications, from simple magnification to complex imaging systems. The lens has an inner radius of 0mm and an outer radius of 0mm, indicating a uniform curvature across its surface.

The lens is coated with the EDM NIR-II std curve on both the front and back surfaces. This coating enhances its performance in the NIR spectrum, improving its transmission and reducing reflections. The coating thickness at the edge is 1.52mm, while at the center, it is 4.4mm. The effective focal length (EFL) of the lens is 30mm, and the back focal length (BFL) is 27.1mm.