Lighting System Working Distances
Product Reference Guide 207
Lighting System Working Distances
Reader Model Lighting System Working Distance
Matrix 300N 41x-010 Red Wide 20 to 550 mm
Matrix 300N 45x-010 White Wide 20 to 550 mm
Matrix 300N 47x-010 Diffused Red, both LED Groups 20 to 250 mm
Matrix 300N 48x-010 MLT-DPM Central LED Group 20 to 250 mm
Matrix 300N 48x-010 MLT-DPM Peripheral LED Group 20 to 50 mm
Matrix 300N 712-010 Red Wide 20 to 650 mm
Matrix 300N 712-015 Red Wide, Polarized 20 to 350 mm
Matrix 300N 752-010 White Wide 20 to 650 mm
Matrix 300N 772-010 Diffused Red, both LED Groups 20 to 350 mm
Matrix 300N 726-010 Red Medium 40 to 1200 mm
Matrix 300N 796-010 White Medium 40 to 1200 mm
Matrix 300N 776-010 Diffused Red, both LED Groups 40 to 450 mm
Any model LT-51x 13 mm
The following figure shows the focus distan
ce of a reader equipped with an LT-
51x illuminator:
Figure 100 - Focus distance = α + β
The best results for this illuminator are obtained when α is approx. 13 mm
(0.5’’). β measures 75 mm, therefore the focus distance in this case equals 88
mm.
CAUTION
The minimum and maximum DPM application distance is limited by both the lighting
system working distance and the reader focus distance.
For example, the minimum application distance is limited by the reader minimum
focus distance (25 mm for liquid lens models). The maximum application distance is
limited by the smaller of the illuminator maximum working distance or the lens max-
imum focus distance. See also “Global FOV Diagrams” on page 94.
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