Method for manufacturing a master die for a diffusion plate and

Details Method for manufacturing a master die for a diffusion plate and Method for manufacturing a master die for a diffusion plate and

1995-07-03

1998-03-31

Duda, Kathleen

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Making electrical device

430329, 430394, 430396, G03F 722

Patent

active

057337101

ABSTRACT:
A diffusion plate includes a plurality of superimposed basic patterns, each having a large number of microstructures. The microstructures are located in two dimensional periodic arrangements, and lattice vectors, corresponding to the periodic arrangement of the microstructures, vary in accordance with the pattern. The invention also discloses a method for manufacturing a master die for such a diffusion plate, and a focusing screen using the diffusion plate.

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