G313337000 25.4 mm Dia. N-BK7 Double-Concave Lens; EFL=-50mm Uncoated

This is a high-quality symmetric concave lens, sourced from the renowned optical components manufacturer, Qioptiq Photonics. The lens, identified as G313337000, boasts a 25.4 mm diameter and a center thickness of 1.5 mm, making it suitable for a wide range of applications.

The lens is made from N-BK7, a popular glass type known for its excellent optical properties. This material is often used in high-precision optical systems due to its low dispersion and high Abbe number. The N-BK7 Schott designation indicates that the glass meets the stringent quality standards set by Schott, a leading glass manufacturer.

The lens features a double-concave geometry, with radii of curvature of -52.33 mm for both the front and rear surfaces. This design results in a negative focal length of -50 mm, making it ideal for use in imaging systems where a reduced image scale is required.

The lens is uncoated, meaning it does not have any anti-reflective coatings. While this may result in higher reflective losses at the air-glass interfaces, it can also make the lens more cost-effective and suitable for applications where such coatings are not necessary.

The lens is currently in stock and can be purchased directly from the Qioptiq Photonics website. For more information, please refer to the provided weblink.