Cross Beam System of two Shutter-Beams

The Cross Beam system is a special application of two Shutter-Beam's. The two IR Beams cross in space and form a point where both of the Shutter-Beams are fired simultaneously.  The two Shutter-Beam's outputs are tied in series. Both Shutter-Beams have to be triggered simultaneously for the camera's shutter release to be fired. That happens at the point of intersection of the two IR beams. Forming pin point subject location.


- Allows camera firing in one pin point location.
- Reduces missed pictures of subjects outside of FOV.


Cross Beam Application of the Shutter-Beam


The Cross Beam system is a special case of triggering. It is not required for most Shutter-Beam applications. If your subject is baited or forced to one location of the beam, (like a bullet, or a nesting bird) you can focus on that location and be fairly sure that your subject is not going to enter the IR Beam outside the cameras field of view. Two beams are not necessarily required unless you can not tolerate the occasional missed shot.

Photographing insects is an example of when you might need to use two Shutter-Beams. They fly very fast and in erratic patterns. The field of view, and depth of focus is very small.  Triggering has to be in the middle of the frame or the insect could easily fly outside of the picture (missed shot). The Cross beam application increases your odds in this case, but you don't have to use the Cross Beam system to get the shot.


Can you think of other applications for the Cross Beam Application ?  Email me.

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