AR Camera Control Without Preview to Cut Power Use

The patent extracts and removes the preview display function from the camera operation. When the camera is activated, instead of displaying preview content through the AR display, the system eliminates the preview display entirely. The camera operates in the background without visual feedback until a photographing action is triggered, at which point the captured image is displayed. This extraction of the continuous preview display resolves the contradiction by removing the energy-consuming element while preserving core camera functionality.

The patent implements periodic action by displaying the captured image only at specific moments (when photographing action is triggered) rather than continuously. The camera operates periodically: activation → background capture → trigger-based display. This periodic display approach maintains photographing functionality while dramatically reducing the duration of energy-consuming operations, thereby extending the endurance period of the AR apparatus.

The patent removes the high-frequency preview rendering function from the optical machine. Instead of continuously rendering preview content at high refresh rates, the system eliminates this rendering process entirely during camera operation. The optical machine only renders the captured image at the moment of photographing, not the continuous preview stream. This extraction resolves the contradiction by eliminating the energy-intensive high-speed rendering while preserving the ability to display photographic results.