alcove hologram

alcove hologram

[′al‚kōv ′häl·ə‚gram]
(optics)
A type of hologram whose surface is bent into an arc that is concave as seen by the viewer, allowing the formation of real images that are viewable over a 180° angle.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.