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07/2020
Corona II
– LED Line Scan Illumination
PMA_CHR_CD40069_R05_Manual_Corona-II_XLC4
37
5.3.3 Illumination characteristics
Figure 5-19
Definition of coordinate system of the Corona illumination
Conditions:
All charts are based on cool white LED (LED-color ID=04) and the maximum current of 1.8
amps.
All simulations and measurements are performed with screen option 1 “Glass with little
diffusion”. To get the values for the other screen option apply with the following correction
factors.
Screen 1 & 3
Screen 2
Screen 4 & 7
Glass, low diffusion
Polarizer screen
Glass, medium
diffusion
Relative Illuminance
@ 100 mm
100 %
approx. 40 %
approx. 50 %
The detector planes are orientated parallel to the x-axis.
Recommended working distances
Focal length
From
To
Reflector “A”
60 mm
50 mm
70 mm
Reflector “B”
95 mm
70 mm
120 mm
Reflector “C”
190 mm
120 mm
300 mm
Reflector “D”
parallel
300 mm