DCX0811 25.4 mm Dia. x 500 mm FL; Uncoated; Double-Convex Lens

The DCX0811 is a Double-Convex Spherical Lens, a high-quality optical component manufactured by Union Optic. This lens boasts a diameter of 25.4 mm and a focal length of 500 mm, making it suitable for a wide range of optical applications.

The lens is made of N-BK7 Schott, a popular optical glass due to its excellent optical properties and high Abbe number. The N-BK7 Schott material ensures high transmittance and low dispersion, making it an ideal choice for various optical systems.

The lens geometry is characterized by its double-convex shape, with radii of curvature R1 and R2 being 517.91 mm and -517.91 mm respectively. This shape provides a high refractive power, focusing light effectively and efficiently. The lens has an edge thickness of 2 mm and a center thickness of 2.3 mm, ensuring robustness and durability.

The lens's effective focal length (EFL) is 500 mm, and its back focal length (BFL) is 499.2 mm. The BFL is the distance from the lens's rear surface to the focal point, which is crucial in designing optical systems.

Notably, this lens is uncoated. While coatings can enhance the performance of lenses by reducing reflection, increasing transmission, and protecting the lens surface, an uncoated lens can be advantageous in certain applications where cost, simplicity, or specific optical characteristics are priorities.