354280 6.5 mm Dia. D-ZK3 Molded Glass Aspheric Lenses; EFL=18.4 mm; NA=0.15 Uncoated

The 354280 6.5 mm Dia. D-ZK3 Molded Glass Aspheric Lens is a high-quality optical component sourced from Thorlabs. This lens, with a catalog number 354280, is designed for use in optical systems that operate at a wavelength of 780 nm.

The lens features an aspheric design, which is a type of lens surface that deviates from a spherical shape, allowing for improved optical performance. The base shape of this lens is circular, and it is made from D-ZK3 glass, a type of glass known for its excellent optical properties.

The lens has an outer diameter of 6.5 mm and a thickness at the edge of 1.775 mm. The effective focal length (EFL) of this lens is 18.4 mm, which is a measure of the lens's ability to focus light. The lens has a numerical aperture (NA) of 0.15, which is a measure of the lens's light-gathering ability.

The lens is uncoated, meaning it does not have any additional layers applied to its surface to alter its optical properties. The center thickness of the lens is 2.178 mm, and it has a conic constant of -0.686129. The lens's front and back surfaces have aspheric coefficients up to the 16th order, indicating a high degree of precision in its manufacture.

This lens is currently in stock and available for purchase through the Thorlabs website.