AD-130GE
70
11. Other functions
11.1. Basic functions
The AD-130GE is based on a dichroic prism, allowing precise separation of the visible (color)
and near-infrared parts of the spectrum into two separate channels. The visible (color) channel
is referred to as Channel 1 and the near-infrared channel is referred to as Channel 2. Channel 1
and 2 can be configured to operate separately or synchronously. When operating separately
each channel can be triggered independently.
The AD-130GE can operate in Continuous (free-run) mode or in triggered modes.
The variable partial scan mode provides higher frame rates at lower vertical resolution.
11.1.1 2CCD optical assembly
The dichroic prism incorporated in the AD-130GE separates the visible (color) part of the
spectrum into a wavelength band from 400nm to 650nm (Channel 1) and the near-IR part into a
band ranging from 760 nm to 1000 nm (Channel 2).
The figure below shows the concept of the separation into visible and near-IR bands.
Fig.46 Conceptual diagram for 2CCD prism optics
11.1.2 Electronic shutter
The AD-130GE has three shutter modes: programmable exposure, GenICam standard Exposure
Time Abs, and auto shutter.
Exposure Time Abs (GenICam Standard)
This is a function specified in the GenICam standard.
The shutter speed can be entered as an absolute exposure time in microseconds (μs) in register
address 0xA018. The entered absolute time (Time Abs) is then converted to programmable
exposure (PE) value inside the camera.
The calculating formula below shows the relationship between the PE values used by the
Imager 2
Visible light
Channel 1
Near-IR
Channel 2
