The Technology Partnership, Plc.

Keith Gardner

Timothy Andrew Large

Victor Carey Humberstone

Peter John Taylor

Guy Charles Newcombe

A light-emitting diode (LED) print head has a linear array of LEDs and device drivers for delivering current to each LED individually. An imaging lens system to create a real image of the LED array is provided in the form of a plurality of gradient index lenses and the LEDs each have emission cones closely matched to the numerical aperture of the gradient index imaging lenses.

Led print head for electrophotographic printer

An electrophoretic display has a matrix addressing structure which includes a first support structure on one side of the display and a second support structure substantially parallel to the said first support structure, on the other side of the display. On the inner surface of the first support structure there is a first set of parallel electrodes and on the facing the inner surface of the second support structure there are second and third sets of parallel electrodes arranged substantially orthogonal to the first set of electrodes The electrodes of the second and third sets are interspersed with one another.

Growing community of inventors

Cambridge, United Kingdom

Keith Gardner