photoelectric control[¦fōd·ō·i′lek·trik kən′trōl]
Control of a circuit or piece of equipment by changes in incident light.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
A control function which is actuated by a change in incident light.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.