Contact screen and printing member produced therefrom

Claim 2

A CONTACT SCREEN FOR FORMING A PRINTING MEANS FOR PRINTING A PICTURE, SAID SCREEN HAVING IDENTICAL GROUPS OF SMALL LIGHT TRANSMITTING AREAS, EACH GROUP BEING MADE UP OF CONGRUENT AREAS, SAID LIGHT TRANSMITTING AREAS ADJOINING ONE ANOTHER AND THE AREAS ON THE EDGES OF THE GROUPS IN PARTS OF THE SCREEN OTHER THAN THE EDGES THEREOF ADJOINING AREAS OF ADJACENT GROUPS, EACH GROUP O AREAS HAVING SUBGROUPS OF AREAS WITH THE PHOTOGRAPHIC DENSITY OF EACH AREA IN A SUBGROUP BEING IDENTICAL TO THE PHOTOGRAPHIC DENSITY OF THE OTHER AREAS IN THE SUBGROUP, THE DENSITIES OF THE AREAS IN THE RESPECTIVE SUBGROUPS BEING DIFFERENT FROM THE DENSITY OF THE AREAS IN EACH OF THE SUBGROUPS WITHIN SAID GROUP OF AREAS AND THERE BEING A SUBGROUP CORRESPONDING TO EACH PHOTOGRAPHIC DENSITY IN A SERIES OF PHOTOGRAPHIC DENSITIES, THE AREAS OF EACH SUBGROUP BEING DISTRIBUTED OVER THE TOTAL AREA OF THE CORRESPONDING GROUP IN A REGULAR HOMOGENEOUS OPTICAL PATTERN AND THE AREAS OF EACH SUBGROUP WITHIN A GROUP TOGETHER WITH THE AREAS OF THE OTHER SUBGROUPS WITHIN THE GROUP HAVING A LOWER PHOTOGRAPHIC DENSITY FORMING A REGULAR HOMOGENEOUS OPTICAL PATTERN.

Claim 3

A PRINTING MEMBER FOR MAKING A PICTURE OF AN OBJECT TO BE REPRODUCED IN THE FORM OF AT LEAST ONE SERIES OF DOTS, ALL DOTS OF A SERIES HAVING THE SAME COLOR AND THE SAME DEGREE OF TRANSMISSION OR REFLECTION AND THE TOTAL AREA OF THE DOTS OF THE SERIES IN THE RESPECTIVE PORTIONS OF THE IMAGE OF THE OBJECT BEING FUNCTIONS OF THE RELATIVE BRIGHTNESS OF THE CORRESPONDING RESPECTIVE PORTIONS OF THE OBJECT, THE SAID PRINTING MEMBER BEING MADE BY EXPOSING A BASE HAVING A PHOTOSENSITIVE LAYER THEREON TO THE PICTURE TO BE REPRODUCED THROUGH A CONTACT SCREEN, SAID SCREEN HAVING IDENTICAL GROUPS OF SMALL LIGHT TRANSMITTING AREAS, EACH GROUP BEING MADE UP OF CONGRUENT AREAS, SAID LIGHT TRANSMITTING AREAS ADJOINING ONE ANOTHER AND THE AREAS ON THE EDGES OF THE GROUPS IN PARTS OF THE SCREEN OTHER THAN THE EDGES THEREOF ADJOINING AREAS ADJACENT GROUPS, EACH GROUP OF AREAS HAVING SUB-GROUPS OF AREAS WITH THE PHOTOGRAPHIC DENSITY OF EACH AREA IN A SUB-GROUP BEING IDENTICAL TO THE PHOTOGRAPHIC DENSITY OF THE OTHER AREAS IN THE SUBGROUP, THE DENSITIES OF THE AREAS IN THE RESPECTIVE SUBGROUPS BEING DIFFERENT FROM THE DENSITY OF THE AREAS IN EACH OF THE OTHER SUB-GROUPS WITHIN SAID GROUP OF AREAS, AND THERE BEING A SUB-GROUP CORRESPONDING TO EACH PHOTOGRAPHIC DENSITY IN A SERIES OF PHOTOGRAPHIC DENSITIES, THE AREAS OF EACH SUB-GROUP BEING DISTRIBUTED OVER THE TOTAL AREA OF THE CORRESPONDING GROUPS IN A REGULAR HOMOGENEOUS OPTICAL PATTERN AND THE AREAS OF EACH SUB-GROUP WITHIN A GROUP TOGETHER WITH THE AREAS OF THE OTHER SUB-GROUPS WITHIN THE GROUP HAVING A LOWER PHOTOGRAPHIC DENSITY FORMING A REGULAR HOMOGENEOUS OPTICAL PATTERN, AND CHEMICALLY TREATING THE BASE TO MAKE A PRINTING MEMBER THEREOF.

Claim 4

A PRINTING MEMBER FOR MAKING A PICTURE OF AN OBJECT TO BE REPRODUCED IN THE FORM OF AT LEAST ONE SERIES OF DOTS, ALL DOTS OF A SERIES HAVING THE SAME COLOR AND THE SAME DEGREE OF TRANSMISSION OR REFLECTION AND THE TOTAL AREA OF THE DOTS OF THE SERIES IN THE RESPECTIVE PORTIONS OF THE IMAGE OF THE OBJECT BEING FUNCTIONS OF THE RELATIVE BRIGHTNESS OF THE CORRESPONDING RESPECTIVE PORTIONS OF THE OBJECT, THE SAID PRINTING MEMBER BEING MADE BY EXPOSING A BASE HAVING A PHOTOSENSITIVE LAYER THEREON TO THE PICTURE TO BE REPRODUCED THROUGH A CONTACT SCREEN, SAID SCREEN HAVING IDENTICAL GROUPS OF SMALL LIGHT TRANSMITTING AREAS, EACH GROUP BEING MADE UP OF CONGRUENT AREAS, SAID LIGHT TRANSMITTING AREAS ADJOINING ONE ANOTHER AND THE AREAS ON THE EDGES OF THE GROUPS IN PARTS OF THE SCREEN OTHER THAN THE EDGES THEREOF ADJOINING AREAS ADJACENT GROUPS, EACH GROUP OF AREAS HAVING SUB-GROUPS OF AREAS WITH THE PHOTOGRAPHIC DENSITY OF EACH AREA IN A SUB-GROUP BEING IDENTICAL TO THE PHOTOGRAPHIC DENSITY OF THE OTHER AREAS IN THE SUBGROUP, THE DENSITIES OF THE AREAS IN THE RESPECTIVE SUBGROUPS BEING DIFFERENT FROM THE DENSITY OF THE AREAS IN EACH OF THE OTHER SUB-GROUPS WITHIN SAID GROUP OF AREAS, AND THERE BEING A SUB-GROUP CORRESPONDING TO EACH PHOTOGRAPHIC DENSITY IN A SERIES OF PHOTOGRAPHIC DENSITIES, THE AREAS OF EACH SUB-GROUP BEING DISTRIBUTED OVER THE TOTAL AREA OF THE CORRESPONDING GROUPS IN A REGULAR HOMOGENEOUS OPTICAL PATTERN AND THE AREAS OF EACH SUB-GROUP WITHIN A GROUP TOGETHER WITH THE AREAS OF THE OTHER SUB-GROUPS WITHIN THE GROUP HAVING A LOWER PHOTOGRAPHIC DENSITY FORMING A REGULAR HOMOGENEOUS OPTICAL PATTERN, AND CHEMICALLY TREATING THE BASE TO MAKE A PRINTING MEMBER THEREOF.