Agfa Gevaert Nv

Arnold A Willem

Daniel M Timmerman

Walter F De Winter

Jozef Leonard Van Engeland

Willy K Van Landeghem

Jean Martha De Gueldre

Johan M Broekaert

An apparatus and method is described for producing an electric field distribution in an imaging chamber corresponding with that of spherical caps. By adequately choosing the distance between annular ring electrodes provided on or in the electrodes of the imaging chamber, use may be made of a high DC-voltage generator of the cascade type so that the voltage applied to each annular electrode is an integer of a basic voltage. Also the voltage over the gap may so be generated. As a consequence, only one high DC-voltage is necessary for generating all the voltages of the whole system.

Method of recording X-ray images and imaging chamber suited therefor

An ionographic imaging chamber, which comprises: first and second substantially planar electrodes; means supporting said electrodes in the chamber in spaced relation defining a gap therebetween; means for connecting a voltage source to said electrodes, and means enabling a dielectric charge receptor member to be introduced into said chamber and into contact with one of said electrodes, wherein said one electrode has in a non-porous surface layer for contacting said member a relief structure or configuration providing a recess or recesses capable of holding gas while a said charge receptor member is in position against said one electrode.

Imaging chamber with electrode structure

A method for producing an electrostatic charge pattern on an insulating charge-receiving member comprising the steps of:

Growing community of inventors

Moerbeke-Waas, Belgium

Arnold A Willem