Omron V530-R150E-3 -, Operation Manual

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Glossary
Appendix D
Resolution
The resolution is a measure of the detail with which images are displayed. The V530-
R150 can display images (via a monitor) using approximately 250,000 pixels (512
™
484). This means that if the field of vision is 512 mm
™
484 mm, the resolution will be
1 (mm/pixel).
Marking Methods
There are several marking methods that can be used. The most suitable method will
depend on factors such as the material of the object onto which the code is marked. The
most commonly used marking devices are listed below.
• Printer
A printer can be used to print codes onto paper and different kinds of labels.
• Laser Marker
A laser marker can be used to mark metal objects. A laser marker can mark very
finely enabling the size of 2-dimensional codes can be reduced.
• Exposure Marking
Using exposure marking, particles are not created (unlike laser marking) and even
finer marking is possible than with laser marking. Exposure marking is used with
semiconductor wafers, LCD panels, and color filters that have exposure processing.
Margin
This is the empty space around 2-dimensional codes. Usually it is necessary to ensure
that there is a margin around 2-dimensional codes. Normally a margin of at least 4 cells
must be provided around 2-dimensional codes. When the QR Code (Pattern) mode is
used, a margin of 1 cell is acceptable.
The black area is the margin.