Michel-Levy Birefringence Chart
Birefringence (n1 - n2)
0.001
0.005
0.010
0.015
0.020
0.025
0.030
0.035
0.040
0.045
0.050
0.055
First Order
Second Order
Third Order
Fourth Order
Fifth Order
Sixth Order
100
300
500
565
700
900
1130
1300
1500
1690
1900
2100
2265
2500
2700
2820
3100
Wavelength
Thickness of Thin Section in Millimeters
0.06
0.05
0.04
0.03
0.02
0.01
0.065
0.070
0.080
0.090
0.120
0.160
Birefringence
Thickness
Path
Difference
Difference
Interference
Color
Color