Optics: image projectors – Projected image combined with real object
Patent
1978-06-06
1980-05-13
Stephan, Steven L.
Optics: image projectors
Projected image combined with real object
33 1C, 353102, 356 2, 356394, G03B 2126, G03B 2120, G01C 1112, G01B 1124
Patent
active
042026121
ABSTRACT:
A plurality of projectors are positioned in spaced relationship about an object with a surface to be geometrically analyzed. The projectors have cooperating masks which project onto the object illuminated patterns that subdivide the object into predetermined sections. Each mask has a predetermined pattern of sections, and is applied in sequence. The masks are cooperatively advanced in the projectors, with a separate illuminating pattern prevailing on the object each time that the masks are advanced. The combinations of the patterns on the masks define closely-spaced sections subdividing the object. The patterns are coded so that each section is uniquely defined in coded form. Cameras having the entire object within their field of view, photograph the object each time a separate mask is applied. The patterns or sections are parallel planes projected through a mask onto the object.
REFERENCES:
patent: 1716768 (1929-06-01), Edmunds
patent: 2949057 (1960-08-01), Polidor
patent: 3479117 (1969-11-01), Tronnier et al.
patent: 3619065 (1971-11-01), Agnew
patent: 3866052 (1975-02-01), Di Matteo et al.
patent: 3884568 (1975-05-01), Fritzsch
patent: 3894802 (1975-07-01), Higgins
Di Matteo Paul L.
Ross Joseph A.
Stern Howard K.
Waszak Lawrence
Fogiel Max
Solid Photography Inc.
Stephan Steven L.
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