Reflectivity - RoboSense RS-Ruby Lite User Manual

9 Reflectivity

The reflectivity is included in the data field of MSOP packet. Reflectivity is a scale to evaluate
the ability of the object in reflection of light. This value is highly related to the material of
measured object. Hence, the character can be used to distinguish the different materials.
RS-Ruby Lite reports reflectivity values from 0 to 255 with 255 being the reported reflectivity
for an ideal reflector. Diffuse reflection reports values from 0 to 100, with the weakest
reflectivity reported from black objects and strongest reflectivity reported from white objects.
Retro-reflector reports values from 101 to 255, the ideal retro-reflector is near to 255.
Diffuse Reflector
Black, diffuse reflector
Reflectivity ≈ 0
Retro-Reflector
Retro-Reflector is covered
with semi-transparent
Reflectivity > 100
The value of reflectivity is already encapsulated in MSOP. It means that the reflectivity can be
directly read.
Figure 12: Calibration of reflectivity.
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RS-Ruby Lite Users' Manual
Black, diffuse reflector
Reflectivity < 100
Retro-Reflector without
any coverage
Reflectivity ≈ 255