Data Sheet
Page 6
SJ-GU-CE30-C-03 A01
this part of data and set the corresponding pixel output to zero, forming the depth map in Figure 3. This processing
causes the phenomenon that some object edges have no data, and leads to irregularities on the edges of detected objects.
Depth data measurement also use high dynamic range (HDR) technology to expand the measurement range. In the
CE30-C, the exposure time of each adjacent two pixel rows is set to different period. One is long and another is short:
pixels with longer exposure time can reliably measure distant objects, and overexposure happens when it measure
short-range objects; pixels with shorter exposure time can reliably detect objects in close range but will be
underexposure when it measure distant objects. Therefore, when measuring an object at a certain distance, generally only
one row of pixels in each adjacent two pixel rows has normal data output, forming the black stripe patterns of the depth
image shown in Figure 3.
4. Detection Range Description
4.1. Blind Zone
Figure 4 Blind zone distribution (test with 90% reflectivity objects)
When detecting objects with high reflectivity, except for the CE30-C’s inherent blind zone of 0-10 cm, a blind zone as
shown in Figure 4 would appear. This is caused by the overexposure when objects’ reflected light is excessive. When the
detected object’s reflectivity is lower, the blind zone can become smaller.