The SPX011AR.33 is a Plano-Convex Spherical Lens, sourced from the reputable vendor MKS/Newport. This lens boasts a diameter of 12.7 mm and a focal length of 16 mm, making it a compact yet powerful optical component. The lens's base shape is circular, and it features an inner radius of 0, indicating a flat back surface.
The lens's geometry is meticulously designed, with a thickness of 3 mm at the edge and 6.66 mm at the center. The front surface has a radius of curvature of 7.335 mm, and the back focal length measures 11.43 mm. This combination of features results in an effective focal length (EFL) of 16 mm, providing a focused, high-quality image.
The lens is constructed from UVFS Mal-1965, a material with a refractive index that optimizes light transmission. The lens is coated with AR-33, a proprietary coating from MKS/Newport, on both the front and back surfaces. This coating enhances the lens's performance by reducing reflective losses and increasing transmission, particularly at the wavelength of 589 nm.