Projection Inclination Guidance for Accurate Image Leveling

The patent introduces an adjustment support device as an intermediary component that generates and displays guide information (such as graphical overlays showing inclination status and adjustment directions) to assist users in leveling the projection apparatus. This intermediary provides the necessary guidance without fundamentally altering the core projection function, thereby improving ease of operation while maintaining relatively simple device structure.

The patent replaces complex mechanical inclination measurement and indication mechanisms with electronic/image processing-based solutions. Instead of using physical levels, gears, or mechanical indicators, the system uses image sensors, processors, and displayed graphical information to detect and guide inclination adjustment, thereby reducing mechanical complexity while improving user guidance.

The patent implements a feedback mechanism where the adjustment support device continuously monitors the inclination status of the projection apparatus (through sensors or image analysis) and provides real-time guide information indicating the current inclination state and the direction/amount of adjustment needed. This closed-loop feedback enables users to make precise adjustments until the desired horizontal/vertical alignment is achieved, thereby improving alignment precision without requiring complex automated adjustment mechanisms.

The patent replaces precision mechanical alignment systems (such as precision gears, cam mechanisms, or mechanical level indicators) with electronic detection and visual guidance systems. Using image sensors and graphical displays provides sufficient precision for alignment while maintaining simpler device structure compared to pure mechanical solutions.