Hitachi CCD Camera 用户手册

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页码 20
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Lens connector 
When using an auto iris lens, install the lens plug on the lens 
Cable as indicated in the figures. Refer to the lens instructions 
Regarding the signals and wire colors. 
 
 
DC type lens 
 
 
 
 
 
 
Video type lens 
 
 
 
 
 
After installing the plug on the cable, connect it to the lens 
connector on the rear of the camera. 
+12V  Video input 
GND 
Damping coil    -
Damping coil   + 
Drive coil  - 
Drive coil  + 
 
Flangeback adjustment is needed in cases where focus cannot   
be obtained by normal lens focus operation or focus is lost at the
maximum telephoto and wide angle settings of a zoom lens. 
In such cases, open the lens iris and adjust as follows.   
Fixed focus lens 
1)    Set the lens focus ring to infinity. 
2)    Aim toward an object at least 20 meters distant. 
3)    Loosen the (2) lens mount screws and turn the lens mount   
ring to adjust the focus.    Use care not to disturb the lens 
focus ring. 
4)    Tighten the lens mount screws. 
Zoom lens 
1)  Set the lens to telephoto and aim toward an object at least 
20 meters distant. 
2)    Turn the lens focus ring to adjust the focus. 
3)  Set the lens to wide angle.    Loosen the (2) lens mount 
        screws and turn the lens mount ring to adjust the focus.     
Use care not to disturb the lens focus ring. 
4)  Again set to telephoto but adjust the focus by turning the   
Lens focus ring. 
5)    Repeat these steps and carefully adjust for best focus. 
6)    Finally, tighten the lens mount screws. 
   
 
NOTE 
If using an auto iris lens and the adjustment object distance 
is less than several meters, due to lens depth of focus 
relationship, slight blurring can occur at certain iris positions.   
In this event, darken the scene so as to open the iris and   
adjust the focus or flangeback to prevent the blurring. 
Set the switch according to the type of auto-iris lens. 
The factory setting is DC. 
 
 
 
 
DC 
Set to DC when using a lens having a DC 
                      Control voltage input. 
VIDEO 
Set to VIDEO when using a lens having a 
           Video signal input. 
 
 
 
 
 
 
 
 
NOTE
 
1)  To the extent possible, set the lens response to 
Average. Hunting can occur toward the Peak setting. 
2)  When adjusting the level, choose a location with 
adequate brightness (more than 300 lux) where the   
AGC and Sens Up functions are not needed. 
 
 
Flangeback adjustment 
Lens selector switch 
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