The Lightbulb Computer: Reimagining Spatial & Ambient Computing with Projectors

The Lightbulb Computer concept explores an alternative approach to human-computer interaction by blending ambient computation and spatial information display in everyday spaces. This device combines projector technology and computer vision advancements within a large lightbulb form factor, making it easy to mount in a portable lamp base or screw into any wall or ceiling Edison socket for a room-scale permanent setup.

The Lightbulb Computer can be activated using simple voice commands, allowing users to interact with their surroundings in a more natural and social manner. For instance, in the kitchen, users can pin widgets like recipes and timers onto various surfaces, making it easier to work with wet or flour-covered hands without needing to unlock a phone or deal with small screens. Similarly, while studying or reading, users can ask questions about the content, receiving instant answers without the distraction of taking out a phone.

The device also enables more fluid interactions with smart home devices, as users can simply point to control them. Additionally, the Lightbulb Computer can serve as an ambient display, showing time, alarm clock, weather, or calendar information next to a bed without the need to look at a screen. Family boards can live in hallways, allowing everyone to see and interact with the shared information at a glance, with items checked off by tapping.

Moreover, the Lightbulb Computer can augment physical objects in the house, such as creating an interactive map of the area around a property, overlaying weather or time-specific information. Objects like a 3D map of a ski resort can be made interactive, with the Lightbulb Computer highlighting relevant locations upon request.

While the technology behind the Lightbulb Computer is not yet fully developed for consumer use, recent advancements in computer vision and projector technology suggest that it may not be far off. However, user privacy and security would be crucial considerations for such a device, necessitating on-device processing, hardware guardrails against unauthorized camera access, and other protective measures.