Spectrophotometer Transmittance Measurement

An inside look at how Shanghai Optics engineers measure transmittance using a Spectrophotometer. Spectrophotometers measure transmittance and reflectance of lenses and lens assemblies (objectives). This process is designed to measure coatings on lenses. 0:12 - Step 1: Initialize the Spectrometer 0:23 - Step 2: Insert the polarizer 0:34 - Step 3: Set test parameters (wavelength, incident angle, polarization type, etc.) 0:39 - Step 4: Calibrate the baseline 0:49 - Step 5: Place the witness piece 1:07 - Step 6: Measure spectral reflectance curve