The 84-321 is a 15mm diameter, plano-convex lens with a focal length of 75mm, designed for use in the visible to near-infrared spectrum (VIS-NIR), specifically catering to the wavelength of 587.6nm. This lens is sourced from the reputable vendor, Edmund Optics, and is currently in stock, as indicated by its weblink status.
The lens is made from fused silica, a material with the material ID of mal-1965, ensuring high transmittance and durability. The front and back surfaces of the lens are coated with the edm visnir0sp2002000 coating, which is specifically designed for VIS-NIR applications, further enhancing its performance in this spectrum.
The geometry of the lens includes a thickness of 2.17mm at the edge and 3mm at the center. The inner and outer radii are both zero, indicating a flat inner surface and a curved outer surface. The lens's effective focal length (EFL) is 75mm, and the back focal length (BFL) is 72.94mm. The lens's shape is spherical, and its base shape is circular.