ASL10142-B 1 in Dia. UVFS High-Precision; CNC Polished Aspheric Lenses; NA=0.143; EFL=79 mm AR 650-1050nm

The ASL10142-B is a high-precision aspheric lens, meticulously crafted by Thorlabs. This lens is designed for use in the ultraviolet to near-infrared spectrum, with a specified wavelength of 780 nm. The lens is made from UVFS material, identified by the manufacturer as "UVFS mal- 1965".

The lens features a diameter of 1 inch (25.4 mm) and a center thickness of 6 mm, with an edge thickness of 3.5 mm. The effective focal length (EFL) of this lens is 79 mm, making it suitable for a variety of optical applications. The lens's shape is defined as aspheric, with specific curvature radii (r1 and r2) of 35.8256 mm and 0 mm, respectively.

The lens's numerical aperture (NA) is 0.143, indicating a wide acceptance angle for incoming light. The lens's surface has been CNC polished for high precision. The lens's design includes higher-order aspheric terms (a4 to a16), which helps to minimize spherical aberration and other optical aberrations, thereby improving image quality.

The lens is coated with a broadband anti-reflection coating, specifically designed for the wavelength range of 650-1050 nm, which further enhances its performance in the specified spectral range. The coating is applied to both the front and back surfaces of the lens.