I: Measure thickness, refractive index, reflectivity and transmittance:
 
Single-layer film or multilayer film superposition
 
 
Single film layer
 
 
Liquid film or air layer
 
 
 
 
 
 
 
2. Measurements under different conditions, including:
 
On a flat or curved surface
 
 
The light spot can reach a minimum of 20 microns
 
 
Desktop, XY coordinate automatic film thickness measurement, or online configuration