Understanding Fiber
Optic Curtains
The Stars
A star is actually a fiber point, or the tip of a
polymer fiber strand, which is manually inserted through
the face fabric and secured with a strong adhesive.
The intensity of a star is controlled by its size.
A single fiber point with a 0.75 mm diameter is standard,
but the size can range up to five fibers per point.
For a standard star drop the fiber points are usually
randomly distributed over the entire drop at a density
of 3.125 points per square foot. A greater or lesser
number of points should only be considered when a
custom design or layout applies.
Illumination
Individual fiber strands are gathered in bundles that
terminate usually at the top or bottom of the drop.
Each bundle is 7' long from the termination point.
It has a fitting or ferrule that connects to the illuminator.
The maximum number of fibers that different ferrules
can accommodate varies. We figure an average of 400
and a maximum of 900 strands per bundle. The total
number of stars directly relates to the number of
illuminators required to light the drop.
Example:
Star Drop Size is 30' x 20'
600 sqft x 3.125 points per sqft = 1875 points
1875 points / max. 900 fibers per bundle = 2
This drop requires a minimum
of 2 illuminators. With a smaller bundle size, more
illuminators will be needed.
Illuminators can be simple stand-alone units for a
limited pre-set number of effects but uncomplicated
operation, or DMX controllable for a greater variety
and quick changes of effects. They come equipped with
a color wheel for color changes, and a twinkle wheel
to provide twinkle effects.
Zone & Circuit
All the fiber points in any one fiber bundle are connected
to the same illuminator. They will light up at the
same time and are controlled together. Larger star
drops requiring more than one illuminator are usually
divided into two or more zones. Each zone is controlled
separately and may contain one or more illuminators.
The bundles or illuminators in each zone are referred
to as circuits.

Zones and circuits become important when various areas
of a drop need to light up at different times or be
controlled in different ways. For instance, if you
have a star drop with a fiber optic logo in the center
you may want to light the stars and logo at different
times, or you may want the logo in steady colors and
the stars to twinkle clear. You may want some stars
to fade away while the remaining stars are concentrated
in only one specific area. The possibilities are endless...
In these custom designed cases pre-determined fiber
bundling becomes crucial.
This type of designated star
layout in specific zones and circuits is more time
consuming and therefore costlier than a random star
spread.
Handling & Durability
Fiber optic curtains can be folded and stored in hampers
just like other theatrical curtains. The fibers points
are flush with the fabric surface and do not protrude.
They are attached with a very durable adhesive and
will not come loose given proper handling. We recommend
folding the star drop with the liner still attached
for added protection. |