Virtual Image Display Optical Alignment After Assembly

The patent applies preliminary action by performing optical axis alignment adjustment after the optical system is initially assembled but before final assembly steps. The adjustment device allows for corrective action to be taken in advance of final assembly, preventing optical axis shifts that would occur during subsequent circuit board attachment and outer packaging assembly processes.

The patent implements dynamics by providing an adjustable optical system where the optical axis can be dynamically modified during the assembly process. The adjustment device enables the optical system to adapt its configuration in response to changes occurring during subsequent assembly steps, maintaining optimal alignment throughout the manufacturing process.

The patent applies dynamics by transforming the optical system from a fixed configuration to an adjustable one. The adjustment device allows the optical system to maintain its precisely aligned state while providing the capability to modify the display position if shifts occur during subsequent assembly processes, thus combining manufacturing precision with adaptability.

The patent implements parameter changes by enabling modification of the optical system's display position parameters after initial assembly. The adjustment device allows for changing positional parameters of the optical axis and display area to compensate for shifts that occur during circuit board attachment and outer packaging assembly, maintaining image position accuracy throughout the manufacturing process.