JGS1 Plano Concave Lens is manufactured from UV-grade fused silica (JGS1) and features one flat surface and one inward-curved surface for controlled beam expansion. The material provides excellent transmission from deep ultraviolet to near-infrared wavelengths with extremely low absorption and high homogeneity. It is widely applied in UV laser systems, semiconductor inspection tools, spectroscopy instruments, and scientific optical setups. The lens exhibits a high laser damage threshold and stable thermal properties, making it suitable for high-energy optical environments. Precision polishing ensures accurate focal characteristics and minimal wavefront distortion.