AL50100-C 50 mm Dia. S-LAH64 High-Precision; CNC Polished Aspheric Lenses; EFL=100 mm; NA=0.24 AR 1050-1700nm

The AL50100-C is a high-precision aspheric lens offered by Thorlabs, a leading vendor in the optical industry. This lens, with a diameter of 50 mm, is designed for use with a wavelength of 780 nm and has an effective focal length (EFL) of 100 mm. The lens is made from n-BK7 Schott glass, a common material in optical systems due to its excellent optical properties and durability.

The lens features a high numerical aperture (NA) of 0.24, which allows for a wide angle of acceptance and increased light-gathering capability. The aspheric design of the lens helps to reduce spherical aberration, a common issue in traditional spherical lenses, resulting in improved image quality and resolution.

The lens is CNC polished, ensuring a high level of surface accuracy and smoothness. It also comes with anti-reflection (AR) coatings on both the front and back surfaces, specifically designed for the 1050-1700 nm range. These coatings help to minimize light loss due to reflection, thereby increasing the overall transmission efficiency of the lens.

The lens has a center thickness of 10 mm and an edge thickness of 3.8 mm, providing structural rigidity and resistance to deformation. The lens is available for immediate purchase and is currently in stock, according to the vendor's website.