The ACL1512U-B is a high-quality aspheric condenser lens, designed and manufactured by Thorlabs. This lens boasts a focal length of 12 mm and a numerical aperture (NA) of 0.61, making it suitable for a wide range of applications that require efficient light collection and focusing.
The lens is crafted from B270 Schott glass, a popular choice for its excellent optical properties and durability. It features a 15 mm diameter, providing a generous light-gathering area. The lens has a center thickness of 8 mm and an edge thickness of 2.4 mm, ensuring robustness and stability.
The ACL1512U-B is coated with Thorlabs' BBAR coating on both the front and back surfaces. This anti-reflection coating is designed to minimize surface reflections and increase transmission in the 650-1050 nm spectral range, enhancing the overall performance of the lens.
The lens's aspheric design is a significant feature. Unlike traditional spherical lenses, aspheric lenses reduce spherical aberration, providing superior image quality and focusing capabilities. This makes the ACL1512U-B an excellent choice for applications that require high-resolution imaging or light focusing.