G313376000 12.7 mm Dia. N-BK7 Double-Concave Lens; EFL=-200mm Uncoated

The G313376000 is a high-quality double-concave lens, boasting a 12.7 mm diameter and a center thickness of 1.5 mm. This lens is crafted from N-BK7, a popular glass type known for its excellent optical properties, making it an ideal choice for various applications. The lens features a double-concave design, characterized by two concave surfaces that curve inward. This design is particularly useful for applications requiring light deflection or dispersion.

The lens has an effective focal length (EFL) of -200mm, indicating that it is a diverging lens. This means that it spreads out light rays, which can be beneficial in certain optical systems. The EFL is a critical parameter in lens selection, as it significantly influences the overall performance of the optical system.

This lens is uncoated, meaning it does not have any additional layers to enhance its optical properties. While coatings can improve light transmission, reduce reflections, and protect the lens surface, an uncoated lens can be advantageous in certain applications where specific coating properties are not required.

The lens is sourced from Qioptiq Photonics, a reputable vendor known for its precision optics. According to the vendor, the lens is currently in stock and available for immediate purchase. For more information, users can refer to the provided weblink.