HO-BVL50-10 50mm Dia. N-BK7 Double-Concave Lens; EFL=-500mm Uncoated

This HO-BVL50-10 lens is a high-quality optical component from Holmarc Opto-Mechatronics, a renowned vendor in the field. It is a spherical lens with a base shape of a circle, featuring a concave-concave design, also known as a double-concave lens. The lens has a diameter of 50mm and a center thickness of 2.5mm, making it a substantial yet manageable size for various applications.

The lens's effective focal length (EFL) is -500mm, indicating that it is a diverging lens, which spreads out light rays. This property makes it ideal for use in applications where beam expansion is required, such as in projectors, lasers, and other optical systems. The inner and outer radii of the lens are 0, suggesting a symmetrical design that ensures consistent optical performance.

The lens is made of N-BK7, a popular material in the optical industry due to its excellent optical properties. This material, also known as Schott glass, offers a high refractive index and low dispersion, making it suitable for a wide range of applications, particularly where high image quality is essential.

The lens is uncoated, meaning it does not have any additional layers to enhance its optical properties. While this may limit its performance in certain applications, it can be advantageous in others, such as where cost-effectiveness is a priority or where specific coating may interfere with the application's requirements.

The lens's wavelength is 587.6nm, which is in the visible light spectrum. This makes it suitable for applications involving visible light, such as in imaging systems, optical instruments, and other light-based technologies.