67-260 30 mm Dia. N-SF5 Precision Aspheric Lens; EFL=17.5mm; NA=0.86 BBAR 600-1050nm

The 67-260 is a high-precision aspheric lens, boasting a 30 mm diameter and a numerical aperture of 0.86. This lens is fabricated from N-SF5 Schott, a material known for its excellent optical properties, particularly in the near-infrared region.

The lens's geometry is meticulously designed, featuring an inner radius of 0 mm, an outer radius of 0 mm, and a thickness at the edge of 1.78 mm. The effective focal length (EFL) is 17.5 mm, and the back focal length (BFL) is 9.43 mm. The center thickness is 13.5 mm, and the lens has a high refractive power, indicated by its high numerical aperture.

The lens's shape is aspheric, which means it has a non-spherical surface. This design helps to minimize spherical aberration, a common optical problem that can degrade image quality. The lens's shape is defined by its conic constant (k1), which is -0.945575, and its aspheric coefficients.

The lens is coated with BBAR 600-1050, a broadband anti-reflection coating that reduces reflection across the 600-1050 nm wavelength range. This coating enhances the lens's transmission, improving its performance in the near-infrared region.

The lens is available from Edmund Optics, a leading supplier of optical components. According to the vendor's website, the lens is currently in stock, indicating its availability for immediate purchase and delivery.