L-BCC049 25 mm Dia. Double-Concave Lens; EFL=-75mm Uncoated

The L-BCC049 is a 25 mm diameter Double-Concave Spherical Lens, sourced from the renowned optical vendor, Ross Optical. This lens is designed with a unique concave-concave base shape, making it an ideal choice for applications requiring a negative focal length.

The lens's geometry is meticulously crafted, with a thickness of 3.5 mm at the edge and 1.5 mm at the center, ensuring optimal light transmission and minimal distortion. The effective focal length (EFL) of this lens is -75mm, making it suitable for applications that require a reversed image, such as in telescopes or other optical instruments.

The lens's surface radii are precisely engineered to -78.11173832mm for the first surface and 78.11173832mm for the second, contributing to its high-performance imaging capabilities. The inner and outer radii are both zero, indicating a symmetrical design that further enhances its optical performance.

The L-BCC049 is fabricated from the high-quality material, N-BK7 Schott, a borosilicate glass known for its excellent optical properties and durability. The lens is uncoated, offering users the flexibility to apply their preferred coating based on their specific application requirements.

This lens is designed to work with a wavelength of 587.6nm, making it suitable for a wide range of applications, including but not limited to, imaging, beam shaping, and light collimation.