ASL10142M-B 1 in Dia. UVFS High-Precision; CNC Polished Aspheric Lenses; NA=0.143; EFL=79 mm AR 650-1050nm

The ASL10142M-B is a high-precision aspheric lens, meticulously crafted by Thorlabs. This lens is designed for use in the UV-FS material system, specifically for a wavelength of 780 nm. The lens is characterized by its circular base shape and a diameter of 25.4 mm, ensuring a wide field of view.

The lens features a thick edge of 3 mm and a center thickness of 6 mm, providing robustness and stability. The effective focal length (EFL) is 79 mm, making it suitable for various optical applications. The lens's shape is defined by its front and back radii (R1 and R2), which are 35.8256 mm and 0 mm respectively, and its conic constant (k1), which is -0.6291.

The ASL10142M-B also boasts an aspheric front surface, characterized by its high-order aspheric coefficients (A2 to A16), which are 0, 1.4398e-07, 0, 0, 0, 0, and 0 respectively. These coefficients contribute to the lens's high-quality imaging performance. The lens's numerical aperture (NA) is 0.143, indicating its light-gathering capability.

The lens is coated with a specialized anti-reflective coating, THOR ASL10142-B, on both the front and back surfaces. This coating is designed to reduce surface reflections and increase transmission in the 650-1050 nm wavelength range, making the lens ideal for use in laser applications.