AD-131GE
75
Relation with Exposure Time (RAW) is as follows.
The following table shows the maximum accumulation time in Exposure Time (RAW)
Maximum
Storage
Time
V-Binning Off
V-Binning Off V-Binning On
Partial Scan
Off
Partial Scan
On
Partial Scan
Off
Full Frame
Full Frame
Full Frame
Line
[L]
982
978
494
Time [s]
1/31
1/32
1/53
Auto shutter
Auto shutter works in the range of 1/31 to 1/325 sec (982L to 95L), depending on the incoming
light.
GPIO in combination with Pulse Width trigger
More precise exposure time can be obtained by using GPIO in combination with Pulse Width
mode. The clock generator and counter can be programmed in very fine increments.
In the AD-131GE, previous settings are also available in JAI Acquisition Control.
11.4. Shading correction
The AD-131GE features a shading correction circuit that can be used for reducing shading
resulting from illumination, lens vignetting or prism shading caused by lenses with a wide
output aperture.
The shading correction circuit divides the image into horizontal and vertical fields, and adjusts
these regions in relationship to the image center.
Binning Vertical
Exposure Time(us) => Exposure Time(Raw)
Calculation formula
1Step
Minimum
Storage
Time
Maximum
Storage
Time
“1” (V
-Binning Off)
INT (Exposure time/ (1660/51324000))
32.344us
11.490 us
31.761 ms
“2” (V
-Binning On)
INT (Exposure time / (1960/51324000))
38.189us
17.340 us
18.865 ms
Note: This formula is a reference. The real value may differ du to the internal
microprocessor round off error.
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