Optical comparator with 3-D image

Details Optical comparator with 3-D image Optical comparator with 3-D image

1978-12-26

1980-11-11

Corbin, John K.

Optics: measuring and testing

By configuration comparison

With projection on viewing screen

350144, G01B 908

Patent

active

042329680

ABSTRACT:
An optical comparator which provides confronting images of a pair of similar objects being compared, the images having a pronounced 3-D effect when viewed with a single eye. Images of the two objects are projected in separate optical paths and are greatly enlarged, the resultant composite image showing comparable portions of the two objects side-by-side with a sharp dividing line. The two objects are mounted in related alignment on a common holder and, when the holder is moved, the objects are scanned across their faces with the images converging toward or diverging from the dividing line, depending on the direction of motion of the holder.

REFERENCES:
patent: 2169397 (1939-08-01), Stanley
patent: 3744917 (1973-07-01), Craig
patent: 4017147 (1977-04-01), Weber et al.

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