Difference between revisions of "Revolving Screen"
Jump to navigation
Jump to search
m (1 revision) |
m (1 revision) |
| (One intermediate revision by the same user not shown) | |
(No difference)
| |
Latest revision as of 10:01, 1 March 2009
2-4-120
An opaque screen, usually of cylindrical form with apertures revolving about a vertical axis in such a way as to interrupt the light from a luminous source in an optic, and so to produce a desired rhythmic light.
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)
