69-860 10 mm Dia. N-SF5 Precision Aspheric Lens; EFL=7.5mm; NA=0.67 BBAR 600-1050nm

This is the 69-860 model from Edmund Optics, a high-precision 10 mm diameter Aspheric Lens made from N-SF5 Schott material. The lens boasts a 0.67 numerical aperture (NA) and an effective focal length (EFL) of 7.5mm, making it suitable for a wide range of applications that require high-resolution imaging and light collection.

The lens features a unique aspheric design with a inner radius of 0 and an outer radius of 0, providing superior optical performance over traditional spherical lenses. The aspheric surface is defined by a conic constant of -1.055033, ensuring minimal spherical aberration and distortion. The lens has a thickness of 2.21mm at the edge and 5mm at the center, providing excellent structural rigidity.

The lens is coated with BBAR 600-1050, a broadband anti-reflection coating that enhances transmission in the 600-1050nm wavelength range. This coating reduces surface reflections, improving light transmission and image contrast. The coating is applied to both the front and back surfaces of the lens.

The lens is currently in stock and available for purchase through the Edmund Optics website. With its high NA, EFL, and superior optical quality, this lens is an excellent choice for applications in fields such as biomedical imaging, machine vision, and scientific research.