optical Component:Diaphragms Speculum Lens, Sphere Lens, Brewster Window, Plane Waveplate, Plane Mirror, Plano Filter, Plane Windows, Attenuance Filter, Plane Attenuator, Curved Surface Mirror, Clindrical Lens, Prisms, Ellipsoidal Mirror, Spherical Lens, Infared ( IR ) Filter, Axicon Lens, Aspherical Lens, Aspherical Metal Lenses, Aspherical Mirror, Spherical Mirror, Ir Lenses, Extender / TeLeconverter Lenses, Field Lenses, Terahertz Lenses, Beam Expander, Shot Wave Infrared ( Swir )Lenses, Uv Lenses, TeLecentric Field Lenses, Prime Athermalized Lens, Continuous Zoom Lens.