Radiant energy – Invisible radiant energy responsive electric signalling – With or including a luminophor
Patent
1981-05-22
1983-09-13
Howell, Janice A.
Radiant energy
Invisible radiant energy responsive electric signalling
With or including a luminophor
250363S, 250368, 378 2, G01T 120
Patent
active
044044690
ABSTRACT:
A multi-pinhole aperture lead screen (22) forms an equal plurality of invisible mini-images having dissimilar perspectives of an x-ray and gamma-ray emitting object (ABC) onto a rear-earth phosphor layer (24) which, in turn, provides visible light mini-images directly into a visbile light image intensifier (26). A viewing screen (34/48) having an equal plurality of dissimilar perspective apertures distributed across its face in a geometric pattern identical to the lead screen, provides a viewer with a real, pseudoscopic image (A'B'C') of the object with full horizontal and vertical parallax. Alternatively, a third screen (34) identical to the viewing screen (48) and spaced apart from a second visible light image intensifier (42), may be positioned between the first image intensifier (26) and the viewing screen (48), thereby providing the viewer with a virtual, orthoscopic image (A"B"C") of the object (ABC) with full horizontal and vertical parallax.
REFERENCES:
patent: 4142101 (1979-02-01), Yin
patent: 4360797 (1982-11-01), Fenimore et al.
Chang et al., "A Method of Tomographic Imaging Using a Multiple Pinhole-Coded Aperture", J. Nucl. Med. vol. 15, No. 11 (Nov. 1974) p. 1063.
Three-dimensional imaging of x-ray and gamma-ray objects in real time, Yin et al., Applied Optics, vol. 19, No. 17, Sep. 1, 1980.
Wide-angle Integral Photography-The Integram System, R. L. de Montebello, SPIE vol. 120 Three Dimensional Imaging (1977).
Bushnell Robert E.
Howell Janice A.
Manning John R.
The United States of America as represented by the United States
Tresansky John O.
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