Method of making lenticular screens

Abstract

Abstract A METHOD OF MANUFACTURING A HIGH-QUALITY LENTICULAR SCREEN OFPRESET CROSS-SECTION AND HAVING AN OPAQUE LAYER BETWEEN THE LENS ELEMENTS WHEREIN A FIRST TRANSPARENT PLATE HAVING A LIGHT-SENSITIZED COLLOID LAYER IS PROVIDED, WHICH LAYER CONTACTS A SECOND TRANSPARENT PLATE UPON WHICH THE LENTICULAR SCREEN IS TO BE MADE. A NEGATIVE OF A WORKPIECE IS PRINTED ON THE LIGHT-SENSITIZED LAYER BY PASSING LIGHT FROM A LIGHT SOURCE OF UNIFORM INTENSITY THROUGH AN INITIAL SCREEN AND THE SECOND TRANSPARENT PLATE. THIS SO FORMED NEGATIVE OF THE WORKPIECE IS STAINED TO FORM NON-TRANSPARENT AREAS IN THE PLACES OF THE FUTURE LENSES. THE SECOND TRANSPARENT PLATE IS COATED WITH A LIGHT-SENSITIZED COLLOID AND THE COATED PLATE IS MATCHED WITH THE STAINED NEGATIVE OF THE WORKPIECE ON THE FIRST TRANSPARENT PLATE. A POSITIVE IMAGE OF THE WORKPIECE IS PRINTED ON THE COATED SECOND PLATE. THE POSITIVE IMAGE OF THE WORKPIECE IS THEN STAINED TO FORM NON-TRANSPARENT LAYERS BETWEEN THE TRANSPARENT AREAS FOR THE LENSES. THE POSITIVE IMAGE OF THE WORKPIECE IS AGAIN COATED WITH A LIGHT-SENSITIZED COLLOID AND MICROLENSES ARE FORMED IN THE TRANSPARENT AREAS BY EXPOSING THE COATED POSITIVE IMAGE OF THE WORKPIECE TO A SOURCE OF LIGHT OF UNIFORM INTENSITY THROUGH THE INITIAL SCREEN.

Inventors

• 👤 Semen Pavlovich Ivanov
• 👤 Ljudmila Vladimirovn Akimakina

Bibliographic Details