Adjustable Light Guide Plates for Head-Mount Display Alignment

The patent implements an adjustment mechanism that allows the light guide plates to be dynamically repositioned relative to each other. The plates can be moved along guidance directions to achieve proper alignment, transforming a static assembly into a dynamically adjustable one. This resolves the contradiction by enabling post-assembly alignment correction without requiring extremely precise initial manufacturing tolerances.

The patent divides the alignment adjustment into independent segments - each light guide plate can be adjusted separately along its guidance direction. The adjustment mechanism is segmented into multiple adjustment units, each handling specific alignment degrees of freedom. This segmentation allows independent optimization of each plate's position, making the overall alignment process more manageable and less dependent on global manufacturing precision.

Instead of requiring high precision in the static assembly process, the patent introduces dynamic adjustment capability. The light guide plates are equipped with mechanisms that allow them to be moved and positioned precisely during assembly and maintenance, but remain fixed during normal operation. This transforms the precision requirement from a manufacturing constraint to an operational feature, significantly easing assembly difficulty.

The patent introduces intermediary adjustment mechanisms between the light guide plates and the housing structure. These intermediaries (such as adjustable mounts or positioning mechanisms) absorb the alignment tolerance requirements, allowing the plates to be connected to standard, easily manufactured components while still achieving high final alignment precision through the intermediary adjustment features.

The patent implements a dual-state system where the light guide plates are dynamically adjustable during assembly and maintenance phases, then statically fixed during operation. The adjustment mechanisms allow movement when needed, and locking features provide stability when required. This temporal separation of dynamic and static states resolves the contradiction between structural stability and alignment correction capability.

The patent enables preliminary alignment adjustment before final fixation. The adjustment mechanisms allow the plates to be positioned and aligned correctly during the assembly process, and then locked in place. This preliminary action ensures proper alignment is achieved before the stability requirement takes effect, eliminating the need for post-assembly correction while maintaining operational stability.