Theatre Design & Technology - Dec 1970 - 9

side by side. The fil m, "Water of Life and Mankind," dynamically projects the association of man,
nature, and water. The Electric Pavilion uses five
screens, 27 feet high totaling a width of 68 feet,
for the film "Hunter of Sun." The theme of this
film is the development of energy-from fire, to
electricity, to nuclear power. The Australian,
German, and Toshiba Pavilions use screens mounted
inside of a circular building achieving the effect of
a 360-degree projection environment.
The Toshiba Global Vision uses nine-facet multiscreens mounted in an abstract-looking building
constructed of so-ca lied "Tetra" modul es. Five
hundred spectators at a time are lifted on a disk
from ground level to the projection level (17 feet
above ground). During the 1 8-minute film, the disk
rotates slowly at intervals throughout the show,
In the case of the Midori Pavilion, "Astrorama,"
there is no circular screen, but instead a dome, 70
feet high and 90 feet in diameter. The dome is
constructed of 40 triangular steel modules, each
comprised of 640 fibre reinforced panels. Inside
of the dome, there are venetian-blind-like screen
elements of 1-1 /2 inch nylon tape, averaging 26
inches in length, totaling approximately 190,000
all together. The uniquely shaped "screen" causes
some problems. An 11-channel sound system using
515 speakers is concealed behind the screen. The
screen must transmit high fidel ity sound without
distortion, and should have no reciprocal light reflections. The two-part film, "Birth" and "March,"
was shot by a specially-built Astrorama camera,

I

made of five 35-mm eight-perforation Mitchell
cameras and equipped with a 300-mm wide-angle
lens covering the field range of 133 degrees. The
original 35-mm negative film was later printed onto
70-mm film for better projection perception. The
film is projected by five 70-mm 5-KW Xenon projectors, equipped with a horizontal film feeding
system. The projectors are evenly placed around the
bottom of the dome, keeping the projection distance
constant. The projected image is sharp without distortion. Although joints and flickers of the image
are still conspicuous, it is a wholly spectacular
show. The problem is not as sal ient as it is in the
Japanese Government Pavilion. The spectator, surrounded by a flood of images and sounds, quickly
finds his vision widened and perceives a new
domain of experience. The effect becomes more
fruitful and dominant when some abstract motif is
projected, as when, at one moment of the show,
kaleidoscopic patterns, apparently taken from a
stained glass window in a cathedral, are projected
on the entire dome to extol man's spiritual
awakening.
Its 1 6 horseshoe-shaped "ai r beams," give the
Fuji Pavil ion a humorous appearance. The air beams
are made of synthetic fibre tubes, each 13 feet in
diameter, 26-1/2 feet long, that are jointed together by fibre ribbons. Filled with compressed air
of 1.08 atmosphere, they can withstand typhoons
when the pressure is increased to 1.25. A giant
Canadian-made 25-KW Xenon projector casts a
single image 62.3 feet x 44.6 feet. On the
screen, in addition to a single picture, multi-vision
simultaneous images are projected using a single
21 O-mm fil m strip (the largest in the market). The
IMEX camera, (9 feet x 13 inches x 17 inches,
and weighing 38 Ibs. without lens and film), was
extensively used on location shooting. The camera
uses standard 65-mm film, and a unique 15perforation pin-registered pull-across to achieve
its remarkable 2.072 inch x 2.772 inch frame.
This camera has an aspect ratio of 1.34: 1, a film
speed of 8-24 fps., and a magazine capacity of
500-1,000 feet. The film shot by the IMEX
camera and set up on the IMEX projector, utilizes a new type of film advancing mechanism for
the large format, the "Rolling Loop." Because the

I

Relay lens

~oou

.
Sliding mirror

(Projector switching device)

[]illIJ THEATER DESIGN AND TECHNOlOGY

DECEMBER. 1970

Spherical screen at the Mitsubishi
Pavilion. Projectors alternate to produce a continuing 220° spherical
image in daylight.

9



Table of Contents for the Digital Edition of Theatre Design & Technology - Dec 1970

Contents
Theatre Design & Technology - Dec 1970 - 1
Theatre Design & Technology - Dec 1970 - 2
Theatre Design & Technology - Dec 1970 - 3
Theatre Design & Technology - Dec 1970 - Contents
Theatre Design & Technology - Dec 1970 - 5
Theatre Design & Technology - Dec 1970 - 6
Theatre Design & Technology - Dec 1970 - 7
Theatre Design & Technology - Dec 1970 - 8
Theatre Design & Technology - Dec 1970 - 9
Theatre Design & Technology - Dec 1970 - 10
Theatre Design & Technology - Dec 1970 - 11
Theatre Design & Technology - Dec 1970 - 12
Theatre Design & Technology - Dec 1970 - 13
Theatre Design & Technology - Dec 1970 - 14
Theatre Design & Technology - Dec 1970 - 15
Theatre Design & Technology - Dec 1970 - 16
Theatre Design & Technology - Dec 1970 - 17
Theatre Design & Technology - Dec 1970 - 18
Theatre Design & Technology - Dec 1970 - 19
Theatre Design & Technology - Dec 1970 - 20
Theatre Design & Technology - Dec 1970 - 21
Theatre Design & Technology - Dec 1970 - 22
Theatre Design & Technology - Dec 1970 - 23
Theatre Design & Technology - Dec 1970 - 24
Theatre Design & Technology - Dec 1970 - 25
Theatre Design & Technology - Dec 1970 - 26
Theatre Design & Technology - Dec 1970 - 27
Theatre Design & Technology - Dec 1970 - 28
Theatre Design & Technology - Dec 1970 - 29
Theatre Design & Technology - Dec 1970 - 30
Theatre Design & Technology - Dec 1970 - 31
Theatre Design & Technology - Dec 1970 - 32
Theatre Design & Technology - Dec 1970 - 33
Theatre Design & Technology - Dec 1970 - 34
Theatre Design & Technology - Dec 1970 - 35
Theatre Design & Technology - Dec 1970 - 36
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