355230 6.325 mm Dia. D-ZLAF52LA Molded Glass Aspheric Lenses; EFL=4.5 mm; NA=0.55 Uncoated

The 355230 6.325 mm Dia. D-ZLAF52LA Molded Glass Aspheric Lenses are precision optical components designed for a wide range of applications. Sourced from Thorlabs, these lenses are characterized by their aspheric design, which offers superior optical performance over traditional spherical lenses.

The lenses boast a diameter of 6.325 mm and an effective focal length (EFL) of 4.5 mm, making them suitable for use in systems with limited space. The aspheric surface is defined by a conic constant of -3.576018 and a parabolic shape, which helps to minimize spherical aberration and distortion.

The lens is made from D-ZLAF52LA glass, a molded glass material with a refractive index of approximately 1.52 at 587.6 nm. This glass type is known for its excellent optical transmission and chemical resistance. The lens has a numerical aperture (NA) of 0.55, indicating a wide acceptance angle and high light-gathering capability.

The lens is uncoated, meaning it does not have any additional layers to enhance its optical properties or protect it from environmental factors. However, this does not affect its performance in many applications, and coated versions are available for specific requirements.

According to the vendor's information, these lenses are in stock, ensuring quick delivery for your optical system needs. For more details, you can visit the provided weblink.