111-0222E 25.4 mm Dia. x 150 mm FL; Uncoated; Double-Convex Lens

The 111-0222E is a double-convex lens, characterized by its spherical shape and circular base. This lens is sourced from EKSMA Optics, a reputable vendor in the optical components industry. The lens boasts a diameter of 25.4 mm and a focal length of 150 mm, making it suitable for a wide range of optical applications.

The lens is made from BK7 glass, a popular material in the optical industry due to its excellent optical properties. The BK7 designation refers to the glass's composition, which is a borosilicate crown glass. This material is known for its low dispersion and high transmission in the visible spectrum, making it an ideal choice for many optical systems.

The lens's geometry is defined by its edge thickness of 3 mm and center thickness of 4 mm. The radii of curvature for the first and second surfaces are 154.9 mm and -154.9 mm, respectively. The lens is uncoated, meaning it does not have any additional layers to enhance its optical properties. However, this does not affect its performance in applications where coating is not a critical factor.

The lens is designed to work with a wavelength of 546 nm, which falls within the green region of the visible light spectrum. This wavelength is often used in interferometry and other precision optical measurements.