eclipse by Scott Shim from usa
designer's own words:
Nobody likes to be bothered while taking care of business in the bathroom. The constant threat of interruption is enough to make this otherwise relaxing activity quite stressful. A solution to this problem is a knob that gives a visual indication that the bathroom is in use. An even better application would also make it difficult to jiggle the handle.
Eclipse is a door knob that provides intuitive recognition to avoid disruption while the bathroom is occupied. To use Eclipse, simply pull the inside door knob after the door has been shut. This will lock the door and hide the outside door knob, providing visual and physical feedback that the bathroom is occupied. Pushing the inside knob will release the lock.
Eclipse is meant for residential use and offers different colors to match consumer demand.
Problem statement
How eclipse work
Appearance of eclipse