49-304 6.25 mm Dia. N-BAF10/N-SF10 Achromatic Doublet; EFL=12.5mm VIS-NIR 400-1000nm

The 49-304 is a high-quality achromatic doublet lens, boasting a 6.25 mm diameter and a focal length of 12.5mm, specifically designed for the visual (VIS) and near-infrared (NIR) spectrum, spanning 400-1000nm. This lens is sourced from the reputable optical vendor, Edmund Optics, and is available for immediate use.

The lens is constructed from two types of Schott glass, N-BAF10 and N-SF10, which are renowned for their excellent optical properties. The lens features a sophisticated geometry, with an inner radius of 0mm, an outer radius of 0mm, and a center thickness of 3mm. The edge thickness is 3.12mm, and the lens has a central thickness of 0.8mm, providing robust structural integrity.

The 49-304 lens is coated with a premium EDM VIS-NIR coating on both the front and back surfaces, enhancing its performance in the VIS-NIR spectrum. This coating reduces surface reflections, improves transmission, and increases the lens's overall durability.

The lens is classified as a multiplet, indicating that it is composed of multiple elements. This design helps to correct chromatic aberrations, ensuring sharp and clear images across the entire spectral range. The lens's shape is circular, contributing to its wide field of view and uniform image quality.