Ultra-violet ray damage, memo from Owen D. Hungerford to J. Irwin Miller (annotated)
1967-08-22
Irwin Management Company Inc.
M003-I-b-ii-B29F332
Item details
1967-08-22
Physical DescriptionOne page
IdentifierMHG_Ib_B029_F332_056
memorandums, annotations
SubjectsMiller House (Columbus, Ind.)
Geographic LocationColumbus (Ind.)
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MEMORANDUM
Date: August 22, 1967
To: Irwin Miller
From: O. D. Hungerford
Subject: Effects of Ultra-Violet Radiation on Oil Paintings and Other Art Objects at 2760
[u]Present status: [/u]Dr. R. W. Stanley, Purdue University specialist in spectroscopy will determine the amount of ultraviolet radiation which passes through the skylights at 2760. Recommendation by September 15. Specifics are:
1. The National Gallery of Art has eliminated the danger of damage from ultra-violet light to its art objects by eliminating ultra-violet radiation from natural light.
2. Invisible ultra-violet radiation activates molecules of pigments, dyes and varnishes used in paintings and other art objects, causing fading. The rate of damage is determined by the intensity of the ultraviolet wavelengths and the length of time of exposure. Both natural daylight and fluorescent light are sources of damaging ultra-violet radiation. (Incandescent light is not.)
3. Skylights at 2760 may not admit enough ultra-violet radiation to be damaging to art objects. By studying light transmission data of patterned glasses like those used in 2760 skylights, Dr. Stanley will try to determine amount of ultra-violet radiation at 2760. If studies are inconclusive, he'll come to Columbus to measure radiation with a spectroscope.
4. If ultra-violet radiation is present at 2760 in damaging amounts, Plexiglas UF-3 in clear 1/8' sheets as used in National Gallery is available to cover living room skylights at about $2.00 per square foot.
ODH/lj
O. D. Hungerford
cc-JFDorenbuschGWNewlin
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