67-276 50mm Dia. UVFS Aspheric Lens; EFL=40mm; NA=0.63 VIS 425-675nm

This is a high-quality aspheric lens from Edmund Optics, catalog number 67-276. It is designed for use in the visible light spectrum, specifically between 425 and 675nm. The lens is made from UV fused silica, a material known for its excellent transmission properties and durability.

The lens has a diameter of 50mm and a numerical aperture (NA) of 0.63, indicating a wide acceptance angle and high light-gathering capability. The effective focal length (EFL) is 40mm, making it suitable for a variety of imaging and illumination applications.

The lens features a unique aspheric design, which helps to reduce spherical aberration and improve optical performance. The geometry of the lens includes a center thickness of 27.5mm and an edge thickness of 4.07mm, providing excellent structural integrity.

The lens is coated with a broadband anti-reflection coating, optimized for the visible spectrum (425-675nm). This coating reduces surface reflections, improving transmission and enhancing overall system performance.