Panasonic HL-D3 Series User Manual page 128

●Mirror reflector installed measuring range
In the mirror reflection installation, in case normal reflecton workpiece such
as mirror or glass, etc. is measured, the measuring range is limited as below
because the measureing ragne is different from diffuse reflection installation.
《Diffusion reflector installed
measuring range》
Measuring
range
X-axis
measuring range
In the mirror reflection installation, smaller "width direction (X) measureing
range" and "height direction (Z) measureing range" provide higher speed
measurement. For details, refer to "4-4-2 Head setting"
 Mask function
When there is an effect from stray light, such as a secondary reflected light
caused by the shape and surface condition of the object being measured, the
measurement can be stabilized by applying a mask in the range to be disr e-
garded.
Variations in the position of the object being measured, and the mask range
can also be corrected at the same time.
The measurement is
not stable due to the
effect of stray light.
The mask function cannot be used when the measurement mode is set to
"Multi-select D.S. meas. mode" and "Const.-pitch meas.".
Z-axis
measuring
range
4-49
Chapter 4 Description of Functions
《Mirror reflector installed
measuring range》
Measuring
Z-axis measuring range
range
approx.±2mm
X-axis measuring range
approx.±2mm
The measurement value is
stable by disregarding the
effect of stray light.
4
Mask area