1-12
V
ARI
*L
ITE®
-
VL2B
AND
VL2C
S
POT
L
UMINAIRE
S
ERVICE
M
ANUAL
CONFIDENTIAL
02.9631.0010
15 Jan 98
1.3
Location of Major Luminaire Components
1.3.1 Head
Components
Ref.
No.
Name
Description
1
Brightness/
Focus
Bulkhead
Motorized, belt-driven iris controls intensity. Iris leaves are
reflective on one side to resist heat of light beam. Motorized lens
mount adjusts focal properties of lamp/lens configuration to
control beam edge sharpness softness.
2
Lamp Focus
Assembly
Manual adjustments tilt mounting plate vertically and horizontally
to center the beam, and moves lamp back-and-forth in the
reflector to adjust divergence.
3
Lamp
VL2B Luminaire: OSRAM model HTI
™
400W S/E metal halide
arc light source (5000ºK). Operates at 400 watts for up to 250
hours.
VL2C luminaire: OSRAM model HTI
™
600W S/E metal halide
arc light source (6100ºK). Operates at 600 watts for up to 250
hours
4
Color Filter
Bulkhead
Two motor-driven filter wheels provide rapid, discrete color
change.
5
Tilt Mechanism
Drives belt driven pulley to tilt luminaire head. Interconnected to
yoke termination board for power and data.
6
Yoke Cable
Assembly
Provides power to yoke termination board, contains high-voltage
lamp cables, and also contains ground cable.
7
Ignitor Board
Assembly
Develops high-voltage pulse for arc lamp.
8
Yoke
Termination
Board
Provides motor and sensor wiring connections to yoke cable
assembly.
9
Reflector
Assembly
VL2B Luminaire: Ellipsoidal aluminum reflector directs light
from arc lamp forward through color filters, gobo/beam
projector, and dimming iris.
VL2C Luminaire: Cold mirror coated glass directs light from
arc lamp forward through color filters, gobo/beam projector, and
dimming iris.
10
Gobo/Beam
Projector
Motorized, cable-driven iris mounted at focal plane controls
beam size. Iris leaves and gobos are reflective on one side to
resist heat of light beam. Motor-driven gobo wheel provides for
projection of various patterns. Gobos snap in and out easily.
