Metrologic Instruments IS4823 - Manual (Page 19)

15
Minimum Allowable Window Position Required
To Avoid Detrimental Internal Reflective Beam Interference at
Negative Exit Beam Angle Tolerance
Exit Beam
Depression Angle β
Minimum Projected Distance (mm)
from the Engine’s Base to
the Window’s Internal Surface (M)
Minimum
Window Angle θ
-2.5° 5.0 23.5°
-2.5° 10.0 16.5°
-2.5° 15.0 12.5°
-2.5° 20.0 10.5°
-2.5° 25.0 9.0°
-2.5° 30.0 8.0°
-2.5° 35.0 7.5°
-2.5° 40.0 7.0°
-2.5° 45.0 6.5°
-2.5° 50.0 6.0°
Figure 13.
Specifications are subject to change without notice.