AR Display Light Emitter Alignment Detection

The patent introduces light emitting sections as intermediary objects that emit light rays which are reflected by target objects and captured by the image pickup section. These light rays serve as mediators between the image pickup section and target objects, providing detectable reference points (crossing positions of light rays) that enable accurate calculation of position and pose changes. This intermediary approach transforms the undetectable movement into detectable optical patterns.

The patent utilizes changes in light patterns (optical properties) detected by the image pickup section. By analyzing the positions where light rays from multiple light emitting sections cross and reflect off target objects, the system detects changes in optical patterns that correspond to movement. This optical pattern analysis provides precise movement detection that simple image analysis cannot achieve.

The patent divides the light emission function into multiple separate light emitting sections, each emitting light rays in specific directions. This segmentation allows the system to create multiple crossing light ray patterns that provide richer positional information. By analyzing the relative positions of crossing points from different light emitting sections, the system can more accurately determine the positional relationship between the image pickup section and target objects.

Each light emitting section serves multiple functions: it provides reference light rays for position detection, creates crossing patterns for pose detection, and enables detection of movement in multiple directions. This multi-functionality allows the system to achieve high measurement precision without proportionally increasing device complexity, as each component contributes to multiple detection objectives simultaneously.