Large Fluorescent Tube/Diffuser Screen (380mm Dia) Light Box
Large Fluorescent Tube/Diffuser Screen (380mm Dia) Light Box
Polariscope Components for 380mm Diameter Field Examination of Models with a Diffused White-Light Source, as used in the Structural Engineering Laboratory of Imperial College, London
Large Fluorescent Tube/Diffuser Screen (380mm Dia) Light Box
Large Diameter (380mm) Polariser roller-mounted on cast iron stand for rotation about a horizontal axis
Large Diameter (380mm) Analyser roller-mounted on cast iron stand for rotation about a horizontal axis
Photoelastic Model Loading Frame to suit 380mm diameter Polariscope, with means to rotate model about horizontal and vertical axis, and to move model up/down/left/right in the polariscope field