BICV401 40 mm Dia. x -63.5 mm FL; Uncoated; Double-Concave Lens

The BICV401 is a high-precision double-concave lens, 40 mm in diameter, and featuring a focal length of -63.5 mm. This lens is sourced from WTS Photonics, a reputable vendor in the optical industry. The lens is uncoated, which means it does not have any additional layers to protect or enhance its optical properties.

The lens is designed with a base shape of a circle and has a spherical geometry. The thickness at the edge of the lens is 8.27 mm, while the thickness at the center is 1.9 mm. The effective focal length (EFL) is -63.5 mm, and the radius of curvature for the first surface (R1) is -64.42 mm. The radius of curvature for the second surface (R2) is 64.42 mm, and the back focal length (BFL) is 60.7 mm. The inner and outer radii are both 0, indicating a uniform curvature across the lens.

The lens is made of n-BK7 Schott, a high-quality optical glass known for its excellent transparency and low dispersion. The lens is designed to operate at a wavelength of 546.1 nm. This lens is ideal for applications that require a strong converging lens with a large aperture.

Please note that the lens is uncoated, which means it may be more susceptible to environmental factors and may not perform as well in high-intensity light applications. However, the uncoated surface can be advantageous in certain applications where a high level of reflectivity is desired.

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