Renseignements généraux

Nº de série

S/O

Nº de partie

1

Nombre total de parties

1

Ou

S/O

Brevets

S/O

Description générale

glass plate/ aluminum frame/ metal hardware

Dimensions

Remarque : Cette information reflète la taille générale pour l’entreposage et ne représente pas nécessairement les véritables dimensions de l’objet.

Longueur

16,3 cm

Largeur

13,8 cm

Hauteur

S/O

Épaisseur

1,0 cm

Poids

S/O

Diamètre

S/O

Volume

S/O

Lexique

Groupe

Physique

Catégorie

Lumière et radiation électromagnétique

Sous-catégorie

S/O

Fabricant

Ou

Sollid

Pays

United States of America

État/province

New Mexico

Ville

Los Alamos

Contexte

Pays

Canada

État/province

Ontario

Période

late 1980s

Canada

Collected for the exhibit "Images in Time & Space" mounted by the Associates of Science & Technology (AST) & the National Museum of Science and Technology, circa 1988-1989.

Fonction

A medium which presents a three dimensional image, in this case a photoelastic model in diffused light.

Technique

One of a number of early holograms produced by Jon E. Solid in 1969-1971 at General Dynamics in Fort Worth, Texas, for interferometric research purposes. This is a laser transmission, double exposure hologram done with a Helium/Neon laser. The theory of holography was developed in 1947 by British/Hungarian scientist Dr. Dennis Gabor while working to improve the resolution of electron microscopes. In 1960 the laser was invented and its pure white light was ideal for holography. In 1962 Emmett Leith and Juris Upatnieks of the University of Michigan, combined Gabor's theory with their own work in side-reading radar and applied it to holography, resulting in the off-axis technique of hologram production still in use & the first laser transmission hologram. Also in 1962 Dr. Yuri N. Denisyuk of the U.S.S.R combined holography with Gabriel Lippmann's work in natural colour photography to produce a white-light reflection hologram which, for the first time, could be viewed in light from an ordinary incandescent light bulb. By 1965 Leith, Upatnieks & other U.S. researchers had developed off-axis reflection holograms (Ref. 1). In 1965 Robert Powell and Karl Stetson published the first paper on holographic interferometry. This technique uses the interference between light beams to make more than one exposure on a single plate, of the same object in double exposure holograms, of the ambient air & a moving object in dynamic holograms, & of the same object recorded by two different wavelengths of laser light in contour interferometry (Refs. 1 & 2).

Notes sur la région

Inconnu

Détails

Marques

"72" printed in red on glass/ "PHOTOELASTICITY DIFFUSE LIGHT" formerly printed in white crayon (no longer visible - see old worksheet in Supp. Info.)

Manque

appears complete

Fini

colourless transparent glass/ anodized aluminum frame

Décoration

S/O