LD2297-A In Stock

The LD2297-A by ThorLabs is a premium bi-concave lens crafted from a N-SF11 substrate. The LD2297-A lens has a unique composition, utilizing N-SF11 substrate, which boasts a low Abbe Number of 25.76 compared to N-BK7 substrate, the LD2297-A lens offers higher dispersion characteristics.

To further enhance its optical performance, the LD2297-A lens features an advanced anti-reflective (AR) coating on both sides of the lens. This coating is optimized for the 350 - 700 nm wavelength range, reducing unwanted reflections and maximizing light transmission, resulting in improved image quality and reduced ghosting and flare. The LD2297-A lens is meticulously crafted with a bi-concave shape, providing a negative focal length of -25.0 mm. This unique design makes it ideal for diverging converging beams, making it a versatile choice for a wide range of optical applications. The spherical surface irregularity of λ/4 ensures precise optical performance, contributing to the overall high-quality construction of the LD2297-A lens.