Bar code registration of optically addressed photo-luminescent displays

An apparatus for generating an image comprising:

• a display surface having a plurality of pixels thereon which are adapted and configured to be addressable with an optical beam;
• an optical addressing means disposed on a rear side of said surface when an opposing first side of said surface is a primary direction of image viewing;
• wherein said optical addressing means includes a light beam;
• a plurality of unique reflective identifiers disposed on said back side;
• said plurality of unique reflective identifiers being placed, oriented and configured to reflect light incident thereon from said light beam and thereby create a plurality of identifying reflections;
• a photodetector adapted and configured to receive the plurality of identifying reflections and provide a registration feedback signal to said light beam;
• wherein said plurality of unique reflective identifiers is a plurality of bar codes;
• wherein said light beam is a scanning light beam;
• wherein said scanning light beam is a light beam;
• wherein said optical addressing means further comprises acousto-optical modulators which are adapted, positioned and configured for scanning said UV light beam across said rear side of said display surface;
• a collimating lens disposed between a source of said UV light beam and said plurality of bar codes;
• wherein said source of a UV light beam is a laser;
• and
• a dielectric UV blocking element.

A method of registering a scanning beam in an optically addressed display comprising the steps of:

• providing a plurality of unique registration bar codes disposed on an interior side of a phosphor display surface;
• optically addressing and exciting phosphor on said interior side of said phosphor display surface with a light source;
• receiving a plurality of reflections from said light source where said plurality of reflections is influenced by said unique registration bar codes;
• and,
• adjusting a directional aspect of a light beam originating from said light source in response to receiving said plurality of reflections.

An improved optically addressed phosphor display of the type having a pixelated phosphor panel;

• and a scanning optical beam which is adapted and configured to be used to address individual pixels within said pixelated phosphor panel, where the improvement comprises:
• a plurality of unique registration bar codes disposed interior of said pixelated phosphor panel, where each of said plurality of unique registration bar codes is spatially associated with a unique pixel on said pixelated phosphor panel;
• and,
• a feedback mechanism coupled with said scanning optical beam for adjusting an operational registration characteristic of said scanning optical beam in response to reflections, received by a photodetector, from said plurality of unique registration bar codes.