357775 6.325 mm Dia. D-LAK6 Molded Glass Aspheric Lenses; EFL=4 mm; NA=0.6 Uncoated

The 357775 6.325 mm Dia. D-LAK6 Molded Glass Aspheric Lenses are precision optical components designed for a wide range of applications. These lenses, sourced from Thorlabs, are characterized by their aspheric design, which offers superior optical performance over traditional spherical lenses. The base shape of these lenses is circular, ensuring uniform light distribution and minimal aberration.

The lenses are made from D-LAK6 glass, a unique material known for its excellent optical properties. The wavelength for these lenses is 408 nm, making them suitable for use in applications that require high-precision optics at this specific wavelength.

The geometry of these lenses is carefully crafted to ensure optimal performance. The inner radius is 0, while the outer radius is also 0, indicating a symmetrical design. The diameter of the lens is 6.325 mm, and the edge thickness is 1.59 mm. The effective focal length (EFL) is 4 mm, which is a crucial parameter for determining the lens's focusing power.

The lens's thickness at the center is 2.898 mm, and it has an NA (numerical aperture) of 0.6. The aspheric coefficients for the front and back of the lens are provided, offering a detailed view of the lens's shape and its impact on optical performance. However, the coating for these lenses is not specified, indicating they are likely uncoated.