Baumer SXC21c User Manual - Page 10

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Baumer SXC21c User Manual
Figure 5 ►
Quantum efficiency for 
Baumer SXC cameras.
Figure 6 ►
Structure of an imaging
sensor with global shut-
ter (interline).
10
6.
Product Specifications
6.1. Sensor Specifications
6.1.1. Quantum Efficiency for Baumer SXC Cameras
The  quantum  efficiency  characteristics  of  monochrome  and  color  matrix  sensors  for 
Baumer SXC cameras are displayed in the following graphs. The characteristic curves for 
the sensors do not take the characteristics of lenses and light sources without filters into 
consideration, but are measured with an AR coated cover glass.
Values relating to the respective technical data sheets of the sensors manufacturer.
350
450
550
650
SXC (monochrome)

6.1.2. Shutter

All cameras of the SX series are equipped with a global shutter.
Global shutter means that all pixels of the sensor are reset and afterwards exposed for a 
specified interval (t
). 
exposure
For  each  pixel  an  adjacent  storage  area  exists.  Once  the  exposure time elapsed, the
information  of  a  pixel  is  transferred  immediately  to  its  storage  area  and  read  out  from 
there.
Due to the fact that photosensitive surface gets "lost" by the implementation of the storage 
area, the pixels are mostly equipped with microlenses, which focus the light to the pixels 
active area.
750
850
950
1050
350
SXC (color)
Wave Length [nm]
450
550
650
750
850
950
Wave Length [nm]
Pixel
Active Area (Photodiode)
Storage Area
1050
Microlens