Recently I had to
change a light bulb in a hard-to-reach area of an exhibit, which is why today’s
post will be about lighting. I will confess
up front that dealing with the lighting in the museum is probably my least
favorite task. That old adage about not
being able to please everyone was probably created by someone trying to light
an exhibit! Visitors to the museum tend
to comment about the general light levels being too low, or about certain
artifacts not being spotlighted. It also
seems at times that I hear from everyone else in the museum whenever there’s a
burned-out bulb!
So, why don’t I just add more lights to
the galleries? I’ve touched on the
subject of lighting previously in the post on the collection room. Exposure to light can damage many materials,
including textiles, leather, wood, and paper.
The damage done is not reversible.
The simplest method of reducing the amount of light and thus the amount
of damage done to the artifacts is to lower the light levels. Displaying artifacts involves walking a pretty tight line between maintaining relatively safe levels of light for the artifacts versus keeping the artifacts
visible to the museum’s visitors.
There are also other
methods of helping to reduce light damage.
Exterior windows can have special UV filtering films placed on the
glass. Light diffusers can be used over
interior lights. Fiber-optic projectors
can be used to illuminate displays while eliminating UV light. Exhibit cases can utilize motion sensors
which turn on lights only when there are people nearby. In a more low-tech approach, items can be placed
behind doors or curtains which visitors can open. Generally, a combination of methods is
utilized in order to best display and protect the artifacts.
Protecting the artifacts from too much
light seems to ensure that the lights are difficult to reach though, especially
for collection managers of a somewhat shorter stature! It’s not as simple and straightforward as
changing a light bulb at home. The use
of a ladder is always required, plus many times artifacts and
risers need to be moved out of the case so that nothing (or no one!) falls on them, plus the job ideally should be completed before the museum opens to eliminate the possibility
of the artifacts being vandalized or stolen.
Here’s Tom changing the light bulb – he assured me that he was smiling for the photo! |
Success! The bulb has been replaced, the risers and artifacts are back in place, the doors are secured again, and the artifacts and staff members involved are safe. |
I’ll bet you never knew that changing a light bulb could be so complicated!
Photos
courtesy of the National Museum of Civil War Medicine.
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