产 品 说 明                                                                                                                          

• Michelson interferometers use optical path differences between optical paths L1 and L2 in the figure.

• With  the same lengths of L1 and L2 and an optical path difference, a  circular interference fringe moves to indicate optical path differences  of 1/4 wavelength.

• Has  a wide range of applications, including measurement of microscopic  length, light wavelength, and wavelength ratio, refractive index,  dispersion, surface roughness, and thin films.