G311204322 12.5 mm Dia. UVFS Double-Convex Lens; EFL=12.5mm

This is a G311204322 12.5 mm Dia. UVFS Double-Convex Lens, sourced from the renowned optical components manufacturer, Qioptiq Photonics. The lens, with a diameter of 12.5 mm, is designed for use in systems operating at a wavelength of 355 nm.

The lens features a double-convex geometry, characterized by two spherical surfaces that curve outwards, meeting at the center. This design allows for a high degree of light bending, making it ideal for applications that require a strong converging or diverging lens. The lens's effective focal length (EFL) is 12.5 mm, which is the distance from the lens's center to the point where parallel rays of light converge or diverge.

The lens's geometry includes a thickness of 1 mm at the edge and 4.7 mm at the center. The inner and outer radii are 0, indicating that the lens's curvature begins and ends at its edge. The first radius of curvature (R1) is 11.548 mm, while the second radius of curvature (R2) is -11.548 mm, reflecting the lens's double-convex design.

The lens is made from UVFS, a material with a high transmission rate in the ultraviolet spectrum. This makes it suitable for applications that require the transmission of ultraviolet light, such as UV curing, fluorescence microscopy, and various analytical instruments.

The lens is coated with Qio Bbar Arb2visnbk7 on both the front and back surfaces. This coating enhances the lens's durability and resistance to environmental factors, while also reducing surface reflections and improving transmission.