Method of making a sight model

Details Method of making a sight model Method of making a sight model

1982-03-25

1984-04-24

Dawson, Robert A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Contour or profile photography to reproduce...

156 59, 264221, 264225, 428913, 430160, 430204, 434152, B44C 300

Patent

active

044446071

ABSTRACT:
This invention comprises a process for molding a three dimensional decorative article where cored out or raised portions extend to a depth of at least 0.6 centimeter, said process comprising generating electronically a line drawing of said article and electronically displaying the drawing; photographing said drawing to form a photographic transparency; positioning said transparency over a layer of a liquid photopolymer having a depth greater than 0.6 centimeter; exposing said photopolymer through said transparency to actinic light to set the photopolymer; and removing the liquid from the set photopolymer to form a three dimensional article having the appearance of said drawing.

REFERENCES:
patent: 3901705 (1975-08-01), Pazos
patent: 4001062 (1977-01-01), Iisaka et al.

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