This is a Plano-Convex lens, type 38-287-INK, sourced from the renowned optical component vendor, Edmund Optics. The lens, with a base shape of a circle, is designed for visible light applications, specifically within the wavelength range of 425-675nm.
The lens has a diameter of 12.5mm and a thickness at the edge of 1.29mm. The center thickness is 3.8mm, providing a decent depth for various optical applications. The effective focal length (EFL) of this lens is 17.5mm, making it suitable for applications that require a longer focal length.
The lens is made from N-BK7 Schott glass, a popular choice for its high refractive index and low dispersion. This makes the lens suitable for a wide range of applications, including imaging, beam shaping, and laser applications.
The lens features a VIS 0° coating on both the front and back surfaces. This coating is standard from Edmund Optics and is designed to improve transmission in the visible spectrum. The coating also provides protection against environmental factors, ensuring the longevity of the lens.