L-PCC040 18 mm Dia. Plano-Concave Lens; EFL=-250mm Uncoated

The L-PCC040 is a plano-concave lens with a diameter of 18 mm, making it a compact yet powerful optical component. This lens is manufactured by Ross Optical, a reputable vendor known for its high-quality optical elements. The lens's base shape is circular, ensuring uniform light distribution and minimal distortion.

The lens's geometry is characterized by its center thickness of 1.5 mm and an effective focal length (EFL) of -250 mm. The negative EFL indicates that this is a diverging lens, which spreads out light rays. The radius of curvature (R1) is -129.2 mm, further emphasizing its diverging properties. The lens's inner and outer radii are both zero, indicating that it is a simple plano-concave lens without any additional curvatures.

The L-PCC040 is made from N-BK7 Schott, a popular optical glass due to its excellent optical properties and high Abbe number. This makes the lens suitable for a wide range of applications, particularly where high optical quality and low dispersion are required. The lens is designed to operate at a wavelength of 587.6 nm, which is within the visible light spectrum.

Notably, this lens is uncoated. While coatings can enhance a lens's performance by reducing reflection, increasing transmission, or providing other benefits, an uncoated lens can be advantageous in certain applications. For instance, uncoated lenses can be more cost-effective and are less prone to damage from environmental factors.