Symbol 5894 from IEC 60417 - Title/Meaning: Electronic shutters, open Function/description: To identify the control to widen electronic shutters to expose to view an image displayed on medical equipment.
Additional information: 
See also the symbol 5893
Description was editorially improved on 2007-12-21
Published in: 3C/1316/FDIS, 3C/1373/RVD
Own work using: iso.org/obp/graphics/grs/60e6322b-e265-4cc2-820a-c62eebb2313b 200.png
Vectorization:  Mrmw