American Cinematographer - December 1980 - 66

LIGHTING DEVELOPMENTS EXHIBITED AT PHOTOKINA 1980
Based
as

on a

the year

careful survey of the trends, this will perhaps be remembered
of arc lamps and plastic luminaires for photographic lighting

By THOMAS M. LEMONS
TLA-Llghting Consultants Inc., Salem, Mass.
The

major lighting developments in¬

troduced at PHOTOKINA '80 center on

lamps and the
plastics in luminaire housings. Be¬
yond this there is the ability to dim arc
lamps, such as the HMI, and use both
HMI and CSI/CID lamps in the same
luminaire. The arc lamp has thus become
a mjor concern in photographic lighting
and projection systems.
The HMI arc lamp was introduced
eleven years ago by Osram for use in TV
location lighting. It has slowly found its
way into the film lighting market and with
its acceptance has come a multitude of
the introduction of new arc
use

manufacturers of this source.

years ago

Several

GEC, an English lamp manu¬

facturer, became the first company to

provide competition for Osram. During

ILC, a California lamp
manufacturer, joined the competition and
now GEC, ILC and Philips offer a full line

the past year,

of HMI type

lamps.

Sylvania added the
2500-watt lamp to their previously an¬
nounced 572- and 1200-watt lamps.
Since Mitsubishi had shown the HMI type
lamp at a past PHOTOKINA, the compe¬
tition within this market is now becoming
At PHOTOKINA,

brisk.

lamp was introduced by Thorn
England over 15 years ago as a pro¬
jection lamp. About ten years ago it was
incorporated into a PAR 64 reflector lamp
for use in TV location lighting, especially
for sports facilities. About two years ago,
in the interest of improving the color of
the CSI lamp, Thorn introduced the CID
lamp. Since the CSI/CID lamps are of
single-ended construction, they provide
many advantages in their mounting and
optical control capabilities. At PHOTO¬
KINA, Thorn introduced a 2500-watt CID
lamp with a Mogul Bipost (G 38) base
The CSI

and 5-inch LCL for direct use in 2Kw

fresnel luminaires. This

lamp, along with

the 1000-watt open, as well as PAR 64
enclosed CID lamps, meet the color re¬

quirements of daylight film.
A CSI lamp of 185 watts was also intro¬
duced by Thorn. This lamp is being made
with a two-pin prefocus (GY 9.5) base, as
well as integrated into a reflector assem¬
bly for projection systems. The open
lamp was being demonstrated in a
battery-operated luminaire for remote TV
applications. At PHOTOKINA, Kobold,

Ryudensha, Arri, LTM, Lee, Blossl and
Cima all had 200-watt battery

operated

HMI

systems which suggests good po¬
new Thorn CSI lamp.
In the projection lamp market not only
was there a 185-watt Thorn CSI lamp with
integral reflector, but also 250 and 400watt Osram HTI lamps and a GE Gemini
300-watt lamp. These lamps have been
developed for the 8mm and 16mm film
projectors. The Gemini 300 is a direct
replacement for the Marc 300 with a 25
percent efficacy increase. A French
company, Hardware S.A.R.L., demon¬
tential for this

strated

575-watt HMI 35mm slide pro¬

jector. Overhead projectors have also
used the 575-watt HMI, 400- and 1000watt CSI and 400-watt HCI

lamps from

Osram, Thorn and Philips. Philips also
has a 400- and 1000-watt HPI lamp for

episcopes. The use of arc lamps in pro¬
jection systems is therefore expanding
rapidly.

The introduction at PHOTOKINA

by
Philips of the 220-watt tin-halide short
arc lamp provides another single-ended
lamp with a two-pin prefocus (GY 9.5)
base. They indicate that this lamp will be
extended to 500- and 1000-watt types
early next year. This lamp has minimum
flicker and good daylight color which
makes it very desirable for photographic
applications. This lamp size and con¬
struction makes it almost

direct

replacement for the FEL single ended
tungsten-halogen lamp. The potential for
this lamp is therefore very great and it can
easily be incorporated into many existing
systems.
With the development of electronic bal¬
lasts for arc lamps, there also exists the
potential for dimming lamps. Osram has
now

evaluated this for the 200-watt bat¬

tery operated systems and the CSEE of

The GUN-LUX HMI 1200FL is a super-light daylight temperature floodlight. The light and
ballast are made of high heat-resistant, high-impact plastic. The light has instant restart

capability, even when hot, and can be restarted at either the light or the ballast. An
aluminum carrying case for transporting both the light and the ballast is available.

American Cinematographer - December 1980

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