Symbol 5541 from IEC 60417 - Title/Meaning: Background light Function/description: To identify a background light compensation control.
Additional information: 
Published in: Supplement M, 1994
Own work using: iso.org/obp/graphics/grs/55cca86b-0fd4-41fd-9c78-4d80225b9675 200.png
Vectorization:  Mrmw