L-BCC111 50 mm Dia. Double-Concave Lens; EFL=-200mm Uncoated

The L-BCC111 is a 50 mm diameter Double-Concave Spherical Lens, offering a negative focal length (EFL) of -200mm. This lens is sourced from the reputable vendor, Ross Optical, and is available for purchase through their online catalog.

The lens features a base shape of a circle, with a thickness of 4.9mm at the edge and 2mm at the center. The inner and outer radii are both zero, indicating a uniform curvature throughout. The radii of curvature for the first and second surfaces are -207.5514135mm and 207.5514135mm respectively, suggesting a symmetrical design.

The lens is made from N-BK7 Schott, a popular optical glass known for its excellent optical properties and versatility. It is designed to work optimally at a wavelength of 587.6nm. The lens does not come with any coating, as indicated by the empty 'coating' field in the item data.

Please note that the lens is uncoated, which may affect its performance in certain applications. Coatings can be applied to enhance the lens's properties, such as reducing reflection, increasing transmission, or improving abrasion resistance. If you require a coated version of this lens, we recommend contacting Ross Optical or consulting with a professional optics supplier.

In conclusion, the L-BCC111 is a high-quality, Double-Concave Spherical Lens, ideal for various optical applications. Its robust design and reliable performance make it a valuable addition to any optics toolkit.