The 49-348 is a high-quality achromatic doublet lens, designed and manufactured by Edmund Optics. This lens is specifically engineered for use in the visible (VIS) and near-infrared (NIR) spectrum, with a wavelength range of 400-1000nm. The lens boasts a 20mm diameter and an effective focal length (EFL) of 30mm, making it suitable for a wide range of optical applications.
The lens is composed of two elements: S-BAH11 from Ohara and N-SF10 from Schott. These materials are carefully selected for their optical properties, contributing to the lens's overall performance. The lens is coated with EDm VIS-NIR 0SP2002000 on both the front and back surfaces, enhancing its transmission capabilities and reducing unwanted reflections.
The lens geometry is meticulously designed, with a center thickness of 8.4mm and edge thickness of 7.21mm. The radii of the curvatures are r1=21.41mm, r2=-13.75mm, and r3=-105.58mm. The lens also features an inner radius of 0mm and an outer radius of 0mm.