111-0240E 25.4 mm Dia. x 700 mm FL; Uncoated; Double-Convex Lens

The 111-0240E is a double-convex lens with a diameter of 25.4 mm and a focal length of 700 mm. This lens is sourced from EKSMA Optics, a reputable vendor known for their high-quality optical components. The lens is made of BK7 Schott, a popular glass type in the optical industry due to its excellent optical properties and versatility.

The lens's geometry is characterized by its double-convex shape, with radii of curvature of 725.5 mm for the first surface and -725.5 mm for the second surface. This specific curvature allows for a high degree of light bending, making it suitable for applications that require significant refraction. The lens has an edge thickness of 3.8 mm and a center thickness of 4 mm, providing structural integrity and resistance to deformation.

The lens is uncoated, meaning it does not have any additional layers to enhance its optical properties or protect it from environmental factors. This makes it suitable for applications where such coatings are not necessary or desirable. However, users should be aware that uncoated lenses can be more susceptible to surface damage and may have reduced transmission in certain wavelength ranges.

The lens is designed to operate at a wavelength of 546 nm, a common reference wavelength in the optical industry. It is important to note that the lens's performance can vary depending on the wavelength of the light it is intended to focus or transmit.