Standard measurement scale and markers for defining standard mea

Details Standard measurement scale and markers for defining standard mea Standard measurement scale and markers for defining standard mea

1997-11-05

2000-08-22

Gray, David M.

Photography

Camera combined with or convertible to diverse art device

356 21, 348140, G03B 2900

Patent

active

061084972

ABSTRACT:
A standard scale used in a photogrammetric measurement system has a polygonal plate having three apexes which are arranged to define a reference plane, where each of the apexes defines a reference point. Another standard scale has a light-guide plate member which has three light-emitting spots for defining reference points. Yet another standard scale has a frame member, and reference-point-forming elements, for defining reference points, arranged on the frame to define a reference plane. A marker used in a photogrammetric measurement system for defining a standard scale has a light-guide plate having a light emitting spot for defining a reference point. Another marker has a polygonal-pyramidal-shaped optical assembly formed from light-guide plates, including a core layer containing fluorescent substances, such that an apex of the optical assembly is defined by an emission of fluorescent radiation therefrom.

REFERENCES:
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patent: 5603318 (1997-02-01), Heilbrun et al.
patent: 5642293 (1997-06-01), Manthey et al.
patent: 5699444 (1997-12-01), Palm
patent: 5732474 (1998-03-01), Cannon
patent: 5767960 (1998-06-01), Orman

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