User's Manual

13. Ext trigger

The external trigger function is used with a frame grabber to obtain an image of an object at a desired

exposure time. Settings can provide images at various timings. The exposure time can be controlled by

the external trigger pulse width.

1) Trigger mode : Selects external trigger mode

• Mode 1: Use for exposure time less than 2 fields.

• Mode 2: Use for exposure time greater than 2 fields.

Note: Longer integration time tends to show increased noise and flaws in the CCD.

2) Delay time : Time from end of trigger pulse to camera sync reset

Setting range is 3 to 20 H. Can be used with a strobe light source to provide an optimum image with a

frame grabber.

3) Trig polarity : Selects positive or negative trigger pulse polarity.

4) WE polarity : Selects WE pulse polarity

Selects pulse (WE) output synchronized to image obtained from the camera rear panel multi connector for

1 field or 1 frame. Use to match the interface of an external frame grabber or other equipment.