Auto Canvas Blinds
Automatic Blinds have a spring roller at the top and steel runners mounted to the wall. Arms fitted to the bottom roller slide up and down these runners.
The standard arms are 300mm but can be longer or shorter.
Normally manufacture ingreen backed Awning Canvas for a full blockout or in Structural Mesh for 90% shade and see through capabilities.
If not under an eave then they will often have hoods at the top.