A Three-Channel Three-Waveform Photostimulator for Biophysical Research on Nervous Integration

We propose two designs for a photostimulator using light emitting diodes (LED's) and fiber optics for applications in the field of nervous integration in the vision of compound eyes. The analog circuit emits rectangular, sinusoidal, and triangular stimuli through three outputs. In the digital circuit rectangular stimuli light LED's in the bank.