Theatre Design & Technology - Fall 1978 - 7
HOLOGRAPHY
An Introduction
by Edward A. Bush
(Enter GHOST)
BERNARDO:
In the same figure, like the king that's dead.
MARCELLUS:
Thou art a scholar; speak to it, Horatio.
BERNARDO:
Looks 'a not like the king? mark it, Horatio.
HORA TlO:
Most like: it harrows me with fear and wonder.
BERNARDO:
It would be spoke to.
MARCELLUS:
Speak to it, Horatio.
What art thou that usurps't this time of night,
HORA TlO:
Together with that fair and warlike form
In which the majesty of buried Denmark
Did sometimes march? by heaven I charge thee,
speak!
MARCELLUS:
It is a Hended.
BERNARDO:
See, it stalks away!
HORA TlO:
Stay! speak, speak! I charge thee, speak!
(Exit GHOST)
MARCELLUS:
'Tis gone, and will not answer.
BERNARDO:
How now, Horatio! you tremble and look pale:
Is it not something more than fantasy?
Hamlet, Act I, Scene 1
The ghost of Hamlet's father, the dagger that haunted Lady
Macbeth, even Zeus descending to the stage via the deus ex
machina exemplify stage effects for which holographic imagery would seem ideally suited. Presenting form without
substance, holography suggests a method to depict with unparalleled realism those people and things playwrights and
directors have striven for millenia to show. Yet even though
the possibility for large scale, three-dimensional imagery has
existed in principle since holography's invention, currently,
the practical use of holography in theatre still appears to be
as much a dream as the holographic images one could hope
to create are dreamlike. Engineering problems and financial
constraints continue to pose barriers to development for the
holographers, worldwide, conducting research into this, and
other similar applications.
Invented by Dennis Gabor in 19471 and made practical by
Emmett Leith and Juris Upatnieks in 1964; holography is a
method for recording an interference pattern created by the
intersection of two beams of light having a phase relationship.
Phase refers to the dynamically constant spatial relationship
each wave has to all the other waves in both beams, arising
from the uniform frequency (color) of the waves and their
common point of origin. Light with these characteristics is
called coherent and is the type emitted by a laser, the pre-
Edward A. Bush is director of educational services for the Museum of Holography, 11 Mercer Street, New York. 10013. He is also editor of
holosphBrB, the newsletter of holographic science, technology and art, published by the Museum.
Table of Contents for the Digital Edition of Theatre Design & Technology - Fall 1978
Contents
Theatre Design & Technology - Fall 1978 - 1
Theatre Design & Technology - Fall 1978 - 2
Theatre Design & Technology - Fall 1978 - 3
Theatre Design & Technology - Fall 1978 - Contents
Theatre Design & Technology - Fall 1978 - 5
Theatre Design & Technology - Fall 1978 - 6
Theatre Design & Technology - Fall 1978 - 7
Theatre Design & Technology - Fall 1978 - 8
Theatre Design & Technology - Fall 1978 - 9
Theatre Design & Technology - Fall 1978 - 10
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Theatre Design & Technology - Fall 1978 - 40
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