Abstract: A novel polymer optical waveguide and method of manufacturing is presented herein. A digitally manufactured process is described which utilizes a micro-dispensed UV optical adhesive as the contour guiding cladding, a fused deposition modeling technology for creating a core, and a subtractive laser process to finish the two ends of the optical interconnect. The optical waveguide can be printed directly on a circuit board in some embodiments. Alternatively, using a slightly modified process including a step to bond the optical fiber to the substrate, the optical interconnect can be manufactured on a flexible substrate.

Abstract: A field-controlled direct current motor is provided with a circuit responsive to armature current which is adjustable as to the amount of armature current representative signal, and the adjusted current representative signal is used to provide a selected amount of droop in the speed-load characteristic of the motor. A plurality of individually field-controlled direct current motors operating in parallel on a common load are individually adjusted as to the amount of sensed armature current to provide through field control individual selected amounts of droop in the respective speed-load characteristics.