354171 4.7 mm Dia. D-ZK3 Molded Glass Aspheric Lenses; EFL=6.2 mm; NA=0.3 Uncoated

The 354171 4.7 mm Dia. D-ZK3 Molded Glass Aspheric Lens is a high-quality optical component sourced from Thorlabs. This lens, with a catalog number 354171, is currently in stock and available for immediate purchase through their website.

This aspheric lens is made of D-ZK3 CGDM glass, a material known for its excellent optical properties. The lens has a diameter of 4.7 mm and a thickness at the edge of 2.881 mm. The effective focal length (EFL) of this lens is 6.2 mm, making it suitable for a wide range of optical applications.

The lens's geometry is defined by its inner and outer radii, both of which are 0 in this case. The thickness at the center of the lens is 3.484 mm. The lens's conic constant (k1) is 0, and its second-order aspheric coefficient (k2) is -1.420775. The lens does not have any coating, as indicated by the empty 'coating' field in the item data.

The lens's numerical aperture (NA) is 0.3, indicating its light-gathering capability. The 'a2 back' parameter is 0, and the 'a4 back' parameter is -0.00235346. The 'a6 back' parameter is 8.438695e-07, and the 'a8 back' parameter is -5.362336e-07. The 'a10 back' parameter is 7.978766e-09, and the 'a12 back' parameter is 0. The 'a14 back' and 'a16 back' parameters are also 0.