Good point, Dave! One also probably can get neutral density film (grey)
that could be wrapped over the bulb to cut output. There may be pre-made
sleeves available for this purpose. However, I would have a couple of
questions with either of these solutions to lower output. First, what
affect would it have on the color of the light? I would imagine it would
lower the CRI? Second, would heat retention in the bulb increase, since the
less light is escaping? Would this shorten the life of the bulb, cause
premature color shift, or other concerns? I'd love to hear opinions on
these issues.
Marc
American Conservation Consortium, Ltd.
4 Rockville Road
Broad Brook, CT 06016
www.conservator.com
860-386-6058
*Collections Preservation Consultation
*Conservation Assessments & Surveys
*Low-Tech Environmental Control
*Moisture Management Solutions
*Collections in Historic Structures
*Conservation Treatment of:
Furniture
Painted Wood
Horse-Drawn Vehicles
Architectural Interiors
Marc A. Williams, President
MS in Art Conservation, Winterthur Museum Program
Former Chief Wooden Object Conservator, Smithsonian Institution
Fellow, American Institute for Conservation (AIC)
----- Original Message -----
From: "David Ryan" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Friday, October 13, 2006 1:45 PM
Subject: Re: [MUSEUM-L] light bulbs with less UV (dimming bulbs)
Dear Colleagues,
A trick I learned back in my preparator days to diminish the output of a
bulb
when you can't alter the distance is to dust the bulb with a little black
spray-
paint. Then check it with your light meter. If it is still too high- dust
it with a
little more paint. It works!
Sincerely,
Dave Ryan
Registrar
Colorado Springs Pioneers Museum
www.cspm.org
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