There is just a sensor, its an array of photodiodes.
I think I have a few floating around the workshop.
Glen Slick wrote:
I was hoping there might be some sort of preassembled
optical sensor
array available with the right spacing for paper tape holes, but maybe
that is hoping for too much. If you build one with discrete sensors,
is it easy to find ones that are narrow enough to stack side to side
with the correct spacing?
Hi
Ahh, such concepts as make one come to mind. You could
scrap a number of mice for the optical sensors ( two for
each axis, 4 total per mouse ) or you could buy photo
transistors from Jameco. In a pinch, the clear lensed
LED's make reasonable detectors.
Use a little imagination.
Dwight
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