parallel-slit interferometer

parallel-slit interferometer

[′par·ə‚lel ‚slit ‚in·tər·fə′räm·əd·ər]
(optics)
A type of stellar interferometer consisting of a screen with two narrow, parallel slits whose separation is adjustable, placed over the objective of a refracting telescope.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.