Difference between revisions of "Shutter"
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All strips rotate simultaneously so as alternately to exhibit or obscure a light. | All strips rotate simultaneously so as alternately to exhibit or obscure a light. | ||
[[Image:Ch2_Fig36.jpg|400px]] | [[Image:Ch2_Fig36.jpg|400px|border]] | ||
{{IALAFooter}} | {{IALAFooter}} | ||
Latest revision as of 10:01, 1 March 2009
2-4-115
A device comprising opaque strips, usually mounted so that each may be rotated through about 90 degrees on an axis.
All strips rotate simultaneously so as alternately to exhibit or obscure a light.
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)
