This is a G311203525 10 mm Dia. UVFS Double-Convex Lens, a high-quality optical component sourced from Qioptiq Photonics. The lens, which has a diameter of 10 mm, is designed for use in the ultraviolet to near-infrared spectrum, specifically between 725 and 1050 nanometers.
The lens features a double-convex geometry, meaning it has two spherical surfaces that curve outwards. This design is characterized by its refractive power, which bends light rays towards the optical axis to provide a sharp image. The first surface has a radius of curvature of 9.578 mm, while the second surface has a radius of -9.578 mm, indicating a concave shape.
The lens has an effective focal length (EFL) of 10 mm, which is the distance from the lens's secondary focal point to its center. This EFL, combined with the lens's diameter, allows for a wide field of view and high light-gathering capability.
The lens is made from UVFS, a type of fused silica. This material is known for its excellent optical properties, including high transparency across a wide spectrum and low auto-fluorescence. The lens has a thickness of 1.2 mm at the edge and 4 mm at the center.
The lens is coated with Qio Bbar Arb2nirnbk7 on both the front and back surfaces. This coating enhances the lens's durability and performance by reducing reflection and increasing transmission in the specified wavelength range.