METHOD FOR PRODUCING LIGHT TRANSMISSIVE HARD SUBSTRATE LAMINATED BODY

摘要

PROBLEM TO BE SOLVED: To provide a method capable of producing a light transmissive hard substrate laminated body at high production efficiency while reducing the risk of cracks.;PROBLEM TO BE SOLVED: To provide a method for producing a light transmissive hard substrate laminated body comprising a process where pressurization is performed to a part of either or both of the outermost face of a pasted laminated body to provide the laminated body with a pressurized recessed part and a non-pressurized flat part, the area projected on the face perpendicular to the directional axis at which the laminated body is laminated in the recessed part is smaller than the area projected on the face perpendicular to the directional axis at which the laminated body is laminated in the flat part, and also, the shortest distance from the edge face parallel to the directional axis at which the laminated body is laminated in the pressurized part for providing the recessed part is 5% or lower than the length of the whole circumference of the contour projected on the face perpendicular to the directional axis at which the laminated body is laminated.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2018,JPO&INPIT