The invention consists mainly of two major sub-systems, ie, three colored lamps and a solid state digital computer. The three lamp colors are green, blue and red. The Computer consists of several TTL devices, diodes, capacitors and resistors. The computer electronics generate the trigger pulses for controlling...http://www.google.com.au/patents/US4317071?utm_source=gb-gplus-sharePatent US4317071 - Computerized illumination system
