Optics: measuring and testing – Dimension – Thickness
Reexamination Certificate
2007-12-11
2007-12-11
Punnoose, Roy M. (Department: 2886)
Optics: measuring and testing
Dimension
Thickness
Reexamination Certificate
active
10547783
ABSTRACT:
A method for measuring three-dimensional objects by single view backlit shadowgraphy. To measure at least one geometrical parameter of such an object, for example the thickness of a hollow sphere, translucent or transparent to visible light, optical characteristics of the object are determined, by which at least one optical model of the propagation of light through the object is established. This model includes an equation that relates the parameter to the result of an observation directly performed on an image of the object, the object being acquired by observing the object by single view backlit shadowgraphy. The image is acquired, the observation is performed, and the parameter is determined by the equation and the result of the observation.
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Diou Alain
Lamy Francis
Pascal Ghislain
Voisin Yvon
Commissariat A l'Energie Atomique
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Punnoose Roy M.
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