A Herner optical holographic projector was a piece of technology that was mounted on the dome of R2-series astromech droids such as R2-RN8W, and R3-series astromech droids such as R3-B0017.
A Herner optical holographic projector was a piece of technology that was mounted on the dome of R2-series astromech droids such as R2-RN8W, and R3-series astromech droids such as R3-B0017.