Ball Lens CaF2 is manufactured from calcium fluoride crystalline material with isotropic optical properties and low refractive index dispersion. The spherical geometry allows symmetric light convergence and divergence, enabling efficient coupling between optical fibers and light sources. CaF2 exhibits broad transmission from ultraviolet to mid-infrared ranges with minimal absorption. The material also shows low birefringence and stable optical behavior under temperature variation, making it suitable for precision optical systems requiring spectral consistency.