37-439 50mm Dia. N-SF5 Precision Aspheric Lens; EFL=37.5mm; NA=0.66 Uncoated

The 37-439 is a high-precision aspheric lens, boasting a 50mm diameter and a numerical aperture (NA) of 0.66. This lens is sourced from the reputable optical vendor, Edmund Optics. It is designed for use with a wavelength of 587.6nm, making it suitable for a wide range of optical applications.

The lens is made from N-SF5 Schott, a high-quality optical glass known for its excellent transmittance and chemical resistance. The aspheric design of the lens helps to reduce spherical aberration, enhancing the overall image quality. The lens has an effective focal length (EFL) of 37.5mm, making it a versatile choice for various optical setups.

The geometry of the lens is carefully crafted, with an inner radius of 0mm and an outer radius of 0mm. The lens has a thickness of 7.47mm at the edge and 21.34mm at the center. The front surface of the lens has a radius of curvature of 25.226mm, with higher-order aberration coefficients (k1) of -1.187653.

The lens is uncoated, offering a clear, unaltered view of the optical phenomenon. However, users should note that uncoated lenses may be more susceptible to surface reflections and may not perform as well in high-light conditions.

The lens is currently in stock and can be purchased directly from the Edmund Optics website, with the provided weblink offering a direct path to the product page.