67-990 9.0mm Dia. x -27 FL; NIR II Coated; Plano-Concave Lens 750-1550nm

This is a 9.0mm diameter Plano-Concave Lens, offering a focal length of -27 and designed for use within the near-infrared spectrum, specifically between 750-1550nm. The lens is sourced from Edmund Optics, a reputable vendor known for their high-quality optical components.

The lens is made from n-sf11 Schott, a material well-suited for near-infrared applications due to its low auto-fluorescence and high damage threshold. The lens geometry includes a thickness of 3.42mm at the edge and 3mm at the center, providing a balanced structure for efficient light transmission.

The lens features a standard EDM NIR-II coating on both the front and back surfaces. This coating is specifically designed to enhance performance within the near-infrared spectrum, ensuring optimal light transmission and reducing unwanted reflections.

The lens is spherical in shape, a common design for optical components due to its ease of manufacturing and versatility. The inner and outer radii are both 0, indicating a simple, direct design.

The lens is currently in stock and can be purchased directly from the Edmund Optics website using the provided weblink. With its specifications and high-quality construction, this lens is an excellent choice for near-infrared applications.