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US 4,359,319 AGranted
Visual instruction systems for printed circuit boards
AssigneeLoral Corporation
InventorGerard B. Greco
Life of this patent
Estimating the term…
Abstract
A visual instruction system for the building and reworking of printed circuit boards. By superimposing a printed circuit board and a one-to-one transparency illustrating component placement, cuts, jumpers, wiring information etc., the worker is constantly apprised of the work completed, and the work remaining to be done. The method is not compatible with more highly sophisticated and expensive production assembly systems, but is intended as a prototype tool for short runs.
Claims1
A visual instruction system for the building and rework of printed circuit boards comprising:
- a work fixture having a first location for supporting a workpiece, and a second location including a back-illuminated recess positioned in spaced coplanar relation with respect to said first location;
- a printed circuit board workpiece disposed at said first location;
- a transparent corresponding sized overlay showing components and modifications to be incorporated on said workpiece disposed in said second location;
- and means including an optical viewing device overlying said first location and a mirror and beam splitter system conducting in highly magnified condition images from said first and second locations to said optical viewing device for displaying an image of said workpiece with said overlay to appear as positioned upon the workpiece to provide a visual comparison to an operator of the instantaneous state of the workpiece relative to a fully completed state indicated by said overlay.
1 more element
Dependencies are inferred from the claim text.