Optical Distance Measuring Apparatus Error Detection

The patent merges the error detection function with the existing light receiving portion by having it perform dual functions: receiving reflected light for distance measurement and detecting errors through clutter reflected light. This eliminates the need for a separate light guiding portion while maintaining error detection capability.

The light receiving portion is designed to perform multiple functions: it receives reflected light for normal distance measurement operations and simultaneously detects errors by analyzing clutter reflected light during non-distance measurement periods. This multi-functionality removes the need for dedicated error detection components.

The patent combines the error detection function into the existing light receiving portion, eliminating the need for additional light guiding portions and other dedicated error detection components. This merging approach maintains error detection capability while reducing overall device size.

The light receiving portion serves itself by performing both distance measurement and error detection functions. During non-distance measurement periods, it automatically detects errors using clutter reflected light without requiring separate dedicated components, thereby reducing device size.

The patent implements periodic error detection during non-distance measurement periods by utilizing clutter reflected light. This periodic approach allows error detection to occur at intervals without continuously interfering with distance measurement operations, balancing accuracy with time efficiency.

The system performs preliminary error detection during non-distance measurement periods before the next distance measurement cycle begins. This timing strategy ensures that error detection completes without extending the overall measurement time, as it utilizes otherwise idle periods in the operational cycle.