67-987 9.0mm Dia. x -9 FL; NIR II Coated; Plano-Concave Lens 750-1550nm

The 67-987 is a 9.0mm diameter Plano-Concave Lens with a focal length of -9, sourced from the renowned optical components vendor, Edmund Optics. This lens is designed for use in the near-infrared (NIR) spectrum, specifically between 750nm and 1550nm, making it suitable for a wide range of applications in this spectral region.

The lens is made from n-SF11 Schott, a high-index glass with excellent transmittance in the NIR region. This material allows for the creation of lenses with high numerical apertures and low dispersion, making it ideal for imaging and beam shaping applications.

The 67-987 features a plano-concave geometry, with a center thickness of 2.25mm and an edge thickness of 3.63mm. This geometry is designed to diverge light, making it suitable for use as an optical element in lasers, beam expanders, and other optical systems where beam divergence is required.

The lens is coated with Edmund Optics' NIR-II standard curve coating on both the front and back surfaces. This coating is designed to enhance the lens's performance in the NIR region, improving its transmittance and reducing reflections. The coating status is currently valid, and the lens is in stock, ensuring quick delivery for your optical system needs.