L-BCC065 25.4 mm Dia. Double-Concave Lens; EFL=-75mm Uncoated

The L-BCC065 is a 25.4 mm diameter Double-Concave Spherical Lens, sourced from the renowned optical vendor, Ross Optical. This lens is designed with a base shape of a circle, featuring a negative focal length (EFL) of -75mm, making it suitable for applications that require a converging lens.

The lens's geometry is intricately designed with an inner radius of 0 and an outer radius of 0, indicating a symmetrical double-concave structure. The center thickness measures 2.5mm, while the edge thickness is 4.18mm, providing a robust and durable construction.

This lens is fabricated from the high-quality material, N-BK7 Schott, a borosilicate crown glass known for its excellent optical properties, including a low coefficient of thermal expansion and high transmittance in the visible spectrum. The wavelength for this lens is specified at 587.6nm.

Notably, this lens is uncoated, offering users the flexibility to apply their preferred coating based on their specific application requirements. However, it's essential to consider that uncoated lenses may have lower transmission rates and are more susceptible to environmental factors such as dust and moisture.