67-267 50mm Dia. UVFS Aspheric Lens; EFL=50mm; NA=0.5 Uncoated

The 67-267 50mm Dia. UVFS Aspheric Lens is a high-quality optical component sourced from Edmund Optics. This lens, with a catalog number 67-267, is designed for use in applications where a large numerical aperture (NA) and high precision are required.

The lens is made from UV Fused Silica (UVFS), a material with a high transmission range that includes the ultraviolet (UV) spectrum. This makes it an ideal choice for applications that require UV transmission, such as UV microscopy or spectroscopy. The lens has a diameter of 50mm and a numerical aperture (NA) of 0.5, providing a wide field of view and high light-gathering capability.

The lens features an aspheric design, which helps to reduce spherical aberration and improve optical performance. The geometry of the lens includes an inner radius of 0mm, an outer radius of 0mm, and a thickness at the edge of 3.49mm. The effective focal length (EFL) of the lens is 50mm, and it has a back focal length (BFL) of 36.63mm. The thickness at the center of the lens is 19.5mm.

The lens is uncoated, which means it does not have any anti-reflective coatings. While this can lead to increased reflection at the air-glass interfaces, it also means that the lens is less susceptible to damage from environmental factors. The lens is available for purchase through the Edmund Optics website, and as of the last check, it is in stock.