DV9500
36
3
3.7 AUTOFOCUS PROCEDURE
CAUTION
Allow the camera to warm-up for at least 15 minutes before performing
this procedure. If the storage temperature of the camera is different from
the working one, this time has to be increased.
The autofocus procedure sets the
a.
autofocus position table: the table that describes the autofocus position to be set at the
various heights
b.
sensitivity table: the table of the sensitivity to be set at the autofocus reference speed.
This procedure should be performed during camera installation or for periodic system
checks.
The following procedure describes the autofocus setup for a Top Reading camera station.
For side reading cameras it is the same considering “height” the distance from the conveyor
border opposite to the camera.
The autofocus setup procedure checks the focus value and the sensitivity to be set at
different reference heights.
An easy way to do this is to place the target on a platform that can be moved up and down
with the required step. Datalogic provides, as an optional accessory, AST-9000 (part number
93ACC1610):
Figure 30 – AST-9000 Autofocus Tool
The autofocus procedure will sample the best focus value for the target at distances from
zero to maximum package height (DOF) in steps of 50 mm.
The focusing target is a barcode-like image that can be ordered separately, part number
93ACC1360.
Running the Genius™ Autofocus wizard the following window appears:
Summary of Contents for DV9500 Series
Page 1: ...DV9500 Installation Manual ...
Page 2: ......