Cheetah Pregius Camera with 10 GigE Vision Interface – User Manual
October 8, 2020
Page
114
of
170
Rev 1.0
In Standard Trigger mode, the maximum exposure time is defined by the
formula:
Exposure Time (max) = Trigger Period – Readout Time,
where the Readout Time is equal to the
CurrentFrameTime
(in free-running
mode, with
AcquisitionFrameRateEnable
off).
In Standard trigger mode, the minimum exposure is equal to 1 line time. This
value depends on a sensor model and some other parameters such as
PixelFormat
.
In Fast Trigger mode, the maximum exposure time is 16 s.
Global Shutter
In global shutter mode, all pixels in the array reset at the same time, then collect signal during
the exposure time, and finally transfer the image to a pixel memory region within each pixel.
After transferring the image to the pixel memory region, the readout of the array begins. In this
way, all pixels capture the image during the same period, which reduces any image artifacts due
to motion within the scene. The maximum exposure is frame-time dependent, and the minimum
exposure varies based on the image sensor.
The camera overlaps the exposure and read-out times in free-running and Fast Trigger modes as
shown in the following figure.
