AC127-030-B 12.7 mm Dia. N-LAK22/N-SF6HT Unmounted Achromatic Doublet; EFL=30mm 650-1050nm

The AC127-030-B is a high-quality unmounted achromatic doublet lens, designed and manufactured by Thorlabs. This lens is specifically engineered for use within the 650-1050nm spectral range, making it ideal for a wide variety of applications within the near-infrared spectrum.

The lens features a 12.7 mm diameter and a thickness of 3.7 mm at the edge. The inner and outer radii are 0, and the first and second radii of curvature are 19.8 mm and -16.2 mm, respectively. The lens is constructed from two materials: N-LAK22 and N-SF6HT, both from Schott, which are renowned for their optical quality and durability.

The lens is coated with Thorlabs' proprietary AC650-1050-B coating on both the front and back surfaces, enhancing its performance within the specified spectral range. The lens shape is a multiplet, which is a complex lens system made up of multiple individual lenses. This design allows for the correction of various aberrations, resulting in superior image quality.

The lens has an effective focal length (EFL) of 30mm, which is a crucial parameter in lens selection. The EFL, combined with the lens's diameter and thickness, determines the lens's field of view and magnification, among other optical characteristics.

The lens is unmounted, providing users with the flexibility to integrate it into their optical systems in the most suitable manner. The lens's catalog number is AC127-030-B, and it is currently in stock on Thorlabs' website, as indicated by the 'Valid - in stock' status in the item data.