Distance Measurement Device Wavelength Segmentation Eye Safety

The patent segments the light emitting elements into multiple groups that emit different wavelengths (e.g., first group emits wavelength λ1, second group emits wavelength λ2). This allows the system to switch between wavelengths based on measurement needs, using shorter wavelengths for high-precision measurements and longer wavelengths for safety-critical applications, thus resolving the contradiction between measurement accuracy and eye safety.

The patent dynamically changes the wavelength parameter of the emitted light based on the measured distance and reflection characteristics. When the object is far away or has low reflectivity, the system switches to shorter wavelengths to maintain measurement accuracy. When the object is close or has high reflectivity, the system switches to longer wavelengths to ensure eye safety, thereby adapting the wavelength parameter to resolve the contradiction.

The patent segments the light emitting elements into multiple groups with different wavelengths. By selectively activating specific groups based on safety requirements, the system can use safer longer wavelengths when eye protection is prioritized, while maintaining the capability to switch to higher-intensity shorter wavelengths when measurement accuracy is critical, thus balancing safety and accuracy.

The patent dynamically adjusts the wavelength parameter based on real-time measurement conditions and safety considerations. When eye safety is the primary concern, the system transitions to longer wavelengths with lower intensity. When measurement precision becomes critical, the system switches to shorter wavelengths with higher intensity, thereby dynamically resolving the contradiction between safety and accuracy.

The patent segments the light emitting elements into multiple groups that can be independently controlled. Each group targets specific spatial regions or distance ranges. This segmentation enables the system to apply different light intensities to different positions without requiring complex individual control of each element, thus achieving position-adaptive illumination while maintaining relatively simple device architecture.

The patent implements local quality by assigning different light intensities and wavelengths to different spatial regions or distance ranges. Rather than using uniform light intensity throughout, the system tailors the light properties locally according to the specific measurement requirements of each region, improving measurement precision for objects at varying distances while managing complexity through the segmented group control approach.