DS6400
2
2.8 FLASH™ DYNAMIC FOCUS
The DS6400 has an innovative linear motor designed to control the focus position of the
scanner via software. This dynamic system, called FLASH
TM
,
is able to move the focus
position rail to rail, from the minimum position to the maximum position.
The FLASH
TM
functionalities are programmed via the GENIUS™ tool (refer to the GENIUS™
Help On-Line for details) and can operate in the following modes:
• Fixed Mode
• Continuous Mode
• Triggered Mode
• D-Flash™ Mode
2.8.1 Fixed Mode
In Fixed mode, the focus is set in the wished position via software (expressed in cm). This
mode represents the basic Flash™ function, in which the focus position is adjusted in
software and is stored in the scanner decoder. This function is similar to the focus
adjustment available for the DS6300 scanner with the great difference that the adjustment is
performed via software through the GENIUS™ tool and not through a manual adjustment of
an external screw.
Figure 62 – Flash™ Fixed Mode
2.8.2 Continuous Mode
In Continuous mode, the focus position is continuously moving from a minimum position to a
maximum position with a defined frequency (f1 in the figure below). This Flash™ function
allows exploiting the whole reading range of the current DS6400 when the object to be
detected is large and slow moving. Typical examples of applications for the Continuous
mode are front side reading of big pallets, or reading on a fork lift truck.
Figure 63 – Flash™ Continuous Mode
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