MENU Open menu www.labspherestore.com Toggle search bar What can we help you find? Submit search CART Standards Color Standards Fluorescent Standards Wavelength Standards Diffuse Reflectance Standards Targets Permaflect Targets Spectralon Targets Spheres Components Port Plugs Adaptors Detectors Light Sources Port Adaptors Power Supplies Replacement Lamps Variable Attenuators Spectrometers Systems Goniometer / Goniophotometer Image Sensor Test Systems Laser Power Measurement Systems Light Measurement Systems Remote Sensing Calibration Systems Sunscreen Testing Optical Coatings and Materials Zenith Nav Menu 2 Nav Menu 3 Nav Menu 4 Nav Menu 5 Nav Menu 6 Nav Menu 7 Nav Menu 8 Home > Components > Port Plug Alternative Views: Mounting on to a port frame, a Port Plug replaces the open port with a cap that matches either the reflectance of the sphere wallor the open port. $175 to $400 Product Code: AS-023X0-0XX Coating*: First, Select Coating Diameter*: Then, Select Diameter Qty: Description Port Plugs mount onto a port frame to cap unused ports to eliminate light from escaping. Port plugs are matched to thereflectance of the sphere wall (-SF, -SL, or -IG), or to the open port itself (-FB) to maintain the system’s calibration. Accessories for this product... Port Frame Reducer General Purpose Sphere $196 to $300 Add $1,400 to $3,150 Add