114-0228E 25.4 mm Dia. x -250 mm FL; Uncoated; Double-Concave Lens

The 114-0228E is a high-quality double-concave lens, sourced from EKSMA Optics, a renowned vendor in the optical components industry. This lens is designed with a base shape of a circle and features a concave-concave design, making it suitable for a wide range of applications.

The lens boasts a diameter of 25.4 mm and a thickness at the edge of 3.5 mm. The center thickness is slightly less at 2.9 mm, providing a sleek and compact design. The effective focal length (EFL) of this lens is -250 mm, indicating its double-concave nature. The first radius of curvature (R1) is -259.9 mm, while the second radius (R2) is 259.9 mm, further emphasizing its concave-concave structure.

The lens is crafted from the material n-BK7 Schott, a popular choice in the optical industry due to its excellent optical properties. The wavelength of this lens is 546 nm, making it suitable for use in various applications that operate within this wavelength range.

Notably, this lens does not come with any coating, offering a bare, uncoated surface. While coatings can enhance the performance of lenses in certain applications, an uncoated lens can be advantageous in others, providing a more straightforward and cost-effective solution.

For more information and to view this lens in stock, please visit the vendor's website using the provided weblink.