Zero Amp-Glow; Camera Performance Analysis - TOUPTEK PHOTONICS ATR2110C User Manual

The cooling system of ATR2110C is two-stage
heat dissipation.
The TEC system is controlled by PID algorithm, which allows the TEC to be precisely regulated towards the target
temperature with 0.1C deviation.
The working temperature can be regulated to specific number, and effective temperature drop can be -42C from ambient
temperature. Such efficient cooling system guarantees the stability of camera image and its quality.

2.8 Zero Amp-Glow

ATR2110C has been carefully designed and is able to achieve zero amp-glow photo shooting. Figure 3 and Figure 4 show the
different cameras at 20C and 5-minute exposure time with and without amp-glow. By comparison, the image captured by
ATR2110C shows zero amp-glow.
Figure 3 Amp-glow

2.9 Camera Performance Analysis

Camera performance can be evaluated with e-/ADU,
e-/ADU: The sensors found in cameras used for vision applications have pixels that convert incoming photons into electrons.
Gain on a CCD /CMOS camera represents the conversion factor from electrons (e-) into digital counts, or
Units
(ADUs). Gain is expressed as the number of electrons that get converted into a digital number, or electrons per ADU
(e-/ADU).
Read Noise: Read Noise
to the analog to digital conversion, amplification and processing steps that enable an image to be produced.
most important reference to measure the performance of a camera. Lower read noise usually means better SNR and better
quality of image.
Full Well: The electrons are held in each pixel and are converted into electrical charge which can be measured to show the
amount of light that has fallen on each pixel. The maximum electrical charge possible is termed
the same conditions such as noise and A/D converter quality, the greater full well capacity a sensor has, the wider dynamic
range the sensor has. As there is a limit to the depth to which pixels can be made, the full well capacity is often proportional
to the frontal area of the light gathering element of the pixel.
Dynamic Range: Dynamic range
signal amplification (noise floor which is the RMS (root mean square) noise level in a black image). The noise floor of the
camera contains sensor readout noise, camera processing noise and the dark current shot noise.
the camera's ability to display/reproduce the brightest and darkest portions of the image and how many variations in between.
This is technically intra-scene dynamic range. Within one image there may be a portion that is in complete black and a portion
that is completely saturated.
For the ATR series camera, the
of the camera performance
Thermoelectric Cooling
Read
is created within the camera electronics during the readout process as the electrons are subjected
is the ratio between the maximum output signal level and the noise floor at minimum
Gain Value
is in xxx% mode. Here xxx is used as the x axis
ATR2110C(ATR3CMOS02300KPA) User Manual
(TEC) with controllable electric fan assisting
Figure 4 Zero amp-glow
Noise, Full Well Dynamic
and
4
Range.
Analog-Digital
Read Noise
"full well capacity". Under
Dynamic range
represents
Value) for the description
(Gain
is the