The 65-305 is a Plano-Convex Lens, a type of spherical lens, sourced from Edmund Optics. This lens, with a diameter of 1mm and a focal length of 1.5mm, is designed for use in the near-infrared spectrum, specifically between 600 and 1050nm.
The lens is made from n-lasf9 Schott, a material known for its excellent optical properties in the near-infrared range. It features a standard NIR I coating on both the front and back surfaces, which enhances its performance in the specified wavelength range.
The geometry of the lens includes a thickness of 0.7mm at the edge and 0.8mm at the center. The effective focal length (EFL) is 1.5mm, and the radius of curvature (R1) is 1.28mm. The back focal length (BFL) is 1.07mm. The lens has no inner or outer radius, indicating a uniform curvature.
This lens is a versatile and high-performing option for applications that require near-infrared capabilities. Its compact size and robust design make it suitable for a wide range of optical systems.