Method of exposing a multi-color target structure

Claim 1

THE METHDO OF EXPOSING THE MULTI-COLOR TARGET OF A CATHODE-RAY TUBE FOR REPRODUCING AN IMAGE IN SIMULATED NATURAL COLOR WHICH COMPRISES THE STEPS OF: SUPPORTING SAID TARGET IN AN EXPOSURE POSITION WHICH IS SUBSTANTIALLY NORMAL TO A REFERENCE AXIS PASSING CENTRALLY THROUGH SAID TARGET; SUPPORTING AT A PREDETERMINED DISTANCE FROM TEH CENTRAL PORTION OF SAID TARGET IN THE GENERAL DIRECTION OF SAID REFERENCE AXIS BUT AT AN ACUTE ANGLE RELATIVE TO SAID AXIS, A DIRECTIONAL APPROXIMATE POINT LIGHT SOURCE HAVING A DIRECTIVITY PATTERN OF LIGHT INTENSITY WHICH INCREASES ALONG A SELECTED RADIUS OF SAID TARGET FROM A MINIMUM AT SAID CENTRAL PORTION OF SAID TARGET FROM A MINIMUM IN THE DIRECTION OF THE OUTER PERIPHERY THEREOF; SUPPORTING AN IMAGING STRUCTURE ACROSS SAID AXIS BETWEEN SAID TARGET AND SAID LIGHT SOURCE; AND ESTABLISHIGN RELATIVE ROTARY MOTION BETWEEN SAID TARGET AND SAID LIGHT SOURCE THROUGHOUT A SELECTED EXPOSURE INTERVAL WHILE MAINTAINING SAID LIGHT SOURCE AT SAID ACUTE ANGLE RELATIVE TO SAID AXIS AND IN A FIXED LOCATION RELATIVE TO SAID REFERENCE AXIS AND TO SAID TARGET TO SEQUENTIALLY ESTABLISH SAID DIRECTIVITY PATTERN OF LIGHT INTENSITY ALONG ALL RADII OF SAID TARGET AND EFFECT SUBSTANTIALLY UNIFORM EXPOSURE OF SAID TARGET TO A PROJECTED IMAGE OF SAID IMAGING STRUCTURE.