PAC046 25.4 mm Dia. N-BAK4/N-SF10 Visible Achromatic Doublet; EFL=76.2mm MgF2 400-700nm

The PAC046 is a high-quality achromatic doublet lens, designed and manufactured by MKS/Newport. This lens is specifically engineered for visible light applications, with a wavelength range of 400-700nm. The lens is constructed from two types of high-grade Schott glass, N-BAK4 and N-SF10, ensuring excellent optical performance.

The lens features a diameter of 25.4mm and a focal length of 76.2mm, providing a relatively long focal length for a lens of this size. The lens is designed in a circular shape, with a thickness of 5.2mm at the edge and a center thickness of 7.5mm. The lens's geometry is optimized for use in a variety of optical systems, with inner and outer radii of 0mm and carefully calculated radii (r1 and r2) of -37.152mm and -123.853mm, respectively.

The PAC046 lens is coated with MgF2 on both the front and back surfaces, which is known for its excellent broadband anti-reflection properties. This coating enhances the lens's transmission, reduces ghosting and flare, and increases overall image quality.

This lens is a multiplet, meaning it is composed of multiple elements. The use of multiple elements in this lens helps to correct chromatic aberrations, providing sharp, clear images with minimal color fringing. The lens is available for purchase directly from the MKS/Newport website, where it is listed as in stock.