114-0238E 25.4 mm Dia. x -500 mm FL; Uncoated; Double-Concave Lens

The 114-0238E is a high-quality double-concave lens, sourced from the reputable optical components manufacturer, EKSMA Optics. This lens is designed with a base shape of a circle and features a spherical geometry, making it suitable for a wide range of optical applications.

The lens has a diameter of 25.4 mm, providing a substantial surface area for light transmission. The edge thickness is 3.5 mm, while the center thickness is slightly less at 3.2 mm, indicating a precise manufacturing process. The effective focal length (EFL) of this lens is -500 mm, demonstrating its strong converging properties.

The 114-0238E is made from the material n-BK7 Schott, a popular choice in the optical industry due to its excellent optical properties and chemical durability. The lens is designed to operate at a wavelength of 546 nm, making it suitable for use in applications that utilize visible light.

Notably, this lens does not come with any coating. While coatings can enhance the performance of lenses in certain applications, an uncoated lens can be advantageous in others, such as when minimal reflection is required.