AC064-013-B 6.35 mm Dia. N-LAK22/N-SF6HT Unmounted Achromatic Doublet; EFL=12.7mm 650-1050nm

The AC064-013-B is an unmounted achromatic doublet lens, part of Thorlabs' extensive catalog of optical elements. This lens is designed for use within the 650-1050nm spectral range, making it suitable for a wide range of applications in the near-infrared region.

The lens features a 6.35mm diameter and a thickness of 3.1mm at the edge. The geometry of the lens is complex, with three radii of curvature (r1: 8.6mm, r2: -6.7mm, r3: -29mm) and varying thicknesses at the center (2.5mm and 1.4mm). This design allows for precise control over the optical path and the correction of chromatic aberrations.

The lens is made from two types of Schott glass: N-LAK22 and N-SF6HT. These materials were chosen for their specific refractive indices and dispersion properties, which contribute to the lens' achromatic performance. The lens is coated with Thorlabs' AC650-1050-B coating on both the front and back surfaces, enhancing its transmission within the specified spectral range.

Please note that this lens is unmounted, meaning it does not come with any mechanical housing or mounting hardware. Users will need to provide their own mounting solution to integrate this lens into their optical system.

According to Thorlabs' website, this item is currently in stock, making it readily available for immediate use in your optical experiments or applications.