A design project published at lightbulbcomputer.com proposes an alternative to smart glasses and headsets: a speculative device called the Lightbulb Computer. It combines a projector with computer vision in the shape of a large light bulb, so it can screw into any Edison socket in a wall or ceiling, or sit in a portable lamp base.

The device responds to voice commands, sees where a person points, analyzes what it sees, and projects content onto real surfaces. The demos include recipe widgets and timers pinned to kitchen counters, a wall-sized map two people can pan and scroll together, photos sent over from a phone, a family checklist in the hallway, and smart home controls triggered by pointing at a device instead of naming it.

All the videos come from a real but bulky prototype setup, with no editing or AI generation. The designer says consumer hardware is not quite there yet, but projectors are getting brighter and smaller, and vision models are fast enough to read a bookshelf in milliseconds.…