Thanks, is a collimating lens also telecentric?
I havent given up on this, just yet. The current idea is to attach sensors(FETS) to the wing tips and the difference in voltage, due to the gradient of the atmospheric ionization, will indicate attitude. Maynard Hill did it first using a piece of radioactive polonium. My hunch is that the DC electronics at the time were difficult and FETS werent around. This voltage difference could move an electroactive polymer actuator in X-Y. The mouse sensor would read the object surface driven by the actuator.