Method and apparatus for the manufacture of a relief pattern, as well as of this pattern of a supporting sheet

摘要

PURPOSE: To provide a stereoscopic image forming sheet and a method for manufacturing the same in which desired image pattern is formed in a uniform height, and accurately formed in a stereoscopic form. ;CONSTITUTION: Circles 11-14 having equal diameters are formed at an interval of 0.3 times as large as the diameter of the circle is formed on the upper surface of a thermal expansion layer of a thermally expandable sheet. When it is irradiated with a light, the circles 11-14 absorb the light to generate heat. In this case, since the circles 11-14 are formed at a suitable distance, they are not affected by the light absorption and heat generation from the other circles, but formed in uniform height and shape.;COPYRIGHT: (C)1996,JPO