Greenlee 560XL Manuel D'instructions page 10

XL Series LED Sources* (cont'd)
577XL-AS100, optimized for full-fill condition of 100/140 µm fiber
with a NA of 0.29
Farfield Specification (NA)
Relative
Intensity
5%
15%
75%
577XL-M90, 578XL-M90, optimized for full-fill condition of
62.5/125 µm fiber with a NA of 0.275
Farfield Specification (NA)
Relative
Intensity
5%
15%
75%
MFD = Mode Field Diameter
NA = Numerical Aperture (sine of scan angle)
10
Low High
0.245 0.255
0.210 0.225
0.100 0.120
Low High
0.250 0.275
0.230 0.255
0.100 0.130
Nearfield Specification (MFD)
Relative
Low
Intensity
5% 80.0
15% 70.0
75% 30.0
Nearfield Specification (MFD)
Relative
Low
Intensity
5% 57.0
15% 53.0
75% 29.0
High
95.0
85.0
45.0
High
63.0
59.0
35.0