US Patent Application 17752115. LASER-SAFETY CONTROL FOR LIDAR APPLICATIONS simplified abstract
Contents
LASER-SAFETY CONTROL FOR LIDAR APPLICATIONS
Organization Name
SONY SEMICONDUCTOR SOLUTIONS CORPORATION
Inventor(s)
Jianming Xu of San Jose CA (US)
LASER-SAFETY CONTROL FOR LIDAR APPLICATIONS - A simplified explanation of the abstract
This abstract first appeared for US patent application 17752115 titled 'LASER-SAFETY CONTROL FOR LIDAR APPLICATIONS
Simplified Explanation
- The patent application describes a lidar system that can automatically adjust the optical power of its optical-probe beam. - The adjustment is based on measurements of the scan rate and/or detection of a person within the system's field of view. - The system can turn off the laser source if the scanning mirror stalls. - The scan rate can be continuously monitored using photodiodes, a position-sensing photodetector, or a two-dimensional light sensor. - The reflected light used for monitoring can include a small portion of the optical-probe-beam light or can be generated using a separate light source.
Original Abstract Submitted
A lidar system capable of automatically adjusting the optical power of an optical-probe beam thereof based on scan-rate measurements and/or detection of a person within the system's field of view. In an example embodiment, the automatic power-adjustment capability includes a capability of turning OFF the corresponding laser source, e.g., when the scanning mirror has stalled. In various embodiments, the scan rate may continuously be monitored using suitably positioned photodiodes, a position-sensing photodetector, or a two-dimensional, pixelated light sensor configured to receive light reflected from the scanning mirror. Depending on the specific embodiment, the reflected light may include a small portion of the optical-probe-beam light or may be generated using a separate dedicated light source.
