16
PRELIMINARY
1M28, 1M75, and 1M150 User’s Manual
03-32-00525-04
DALSA
Figure 9: Output Signal (DS-11-01M28) at Different LinLog Values. Integration time: t
int
= 1 ms, intensity:
I = 535
µ
W/cm
2
and wavelength:
λ
= 850 nm
0
50
100
150
200
250
0
25
50
62.5
75
81.3
87.5
100
LinLog Value
A
D
C
S
ig
n
a
l
8b
it
Mean
When using the 4x hardware gain option (HIGH_GAIN = ON), the compression may be
ineffective (the A/D converter is out of range) because the logarithmic compression is only
effective on the upper intensity values. If it is necessary to use a camera with a logarithmic
response curve, the LinLog
technology will not replace it completely. On demand, DALSA
cameras can be modified to fulfil these needs.
If necessary, a look-up table (LUT) can be used to improve and adjust the characteristics to the
application. Please ask our support for more information.
Parameter Adjustment Procedure for LL2
There is no direct formula for the interactions of LL1, LL2, and COMP. To determine optimal
settings, use the flowchart on the next page.