Aligning the lamp in the optical path is achieved by altering the three adjusters located on the rear of the fixture.
This procedure should be undertaken to properly align the lamp in the optical system, thus avoiding the possible overheating of internal
components and ensuring the maximum luminous output form the fixture.
aligning
Alignment is effected by operating the three adjusters
A
,
B
and
C
simultaneously with the lamp on, shutter and simmer open and
no filters in place.
Output from a non-aligned lamp will be noticeable for a hot-spot; adjustment will bring the hot spot towards the centre of the beam
(adjusters B and C), flattening it in the process (adjuster A).
Vertical adjustment
Adjuster (
C
) acts on an internal lever and spring assembly which moves the lamp vertically toward the centre of the parabolic reflec-
tor; rotate it until the correct positioning is achieved.
Horizontal adjustment
Adjuster (
B
) acts on an internal lever which moves the lamp horizontally in the centre of the parabolic reflector; rotate it until the
correct positioning is achieved.
Axial adjustment
Adjuster (
A
) moves the entire lampholder assembly axially within the reflector, rotate it until a flat, even beam is produced, with no
noticeable hotspot.
NB: It is extremely important to ensure that the beam is adjusted to its maximum uniformity avoiding hotspots which may result in
damage to the gobos and dichroics.
A
B
C
Adjust lamp position
by turning screws
A
,
B
and
C
lamp
lamp
Caution hot lamp
Isolate electrically
before re-lamping
LO
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MP
LOOSE
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13. Aligning the lamp in the optical path
19
English
Summary of Contents for iSPOT 585 MB
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