49-849 25.4mm Dia. x 50.8mm FL; Plano-Convex Lens Uncoated

The 49-849 is a Plano-Convex lens with a diameter of 25.4mm and a focal length of 50.8mm, sourced from the reputable optical vendor, Edmund Optics. This lens is uncoated, offering a simple, cost-effective solution for various optical applications.

The lens's geometry is characterized by a convex surface with a radius of curvature of 26.25mm, and an edge thickness of 1.72mm, transitioning to a center thickness of 5mm. The effective focal length (EFL) is 50.8mm, making it suitable for applications that require a longer focal length. The lens's base shape is circular, providing a wide field of view and uniform illumination.

The lens is made of N-BK7 Schott glass, a common material in optical systems due to its excellent optical properties and high Abbe number. This material ensures low dispersion and high homogeneity, making it ideal for applications that require high image quality and precision.

The lens is designed to operate at a wavelength of 587.6nm, making it suitable for applications in the visible spectrum. However, it can also be used in other spectral regions, depending on the specific requirements of the application.

Please note that the lens is uncoated, which means it does not have any anti-reflective or protective coatings. While this can make the lens more affordable, it may also result in higher reflective losses and increased susceptibility to environmental factors such as dust and scratches. Therefore, it is essential to consider the specific requirements of your application when choosing an uncoated lens.