Optical Rangefinders TRIZ Cases

A wide-range LiDAR guides FMCW focus adjustment to keep surface distance measurement accurate as object distance changes.

Combining triangulation with phase-difference sensing extends distance range while avoiding larger optics and saturation in compact measurement hardware.

Selective filtering and reference-signal synchronization cut useless multi-sensor data transfer while preserving needed information for later processing.

Variable pulse emission intervals separate overlapping histogram bins, improving multi-object distance accuracy and measurable range.

Dynamic exposure and distance-image tuning helps indirect ToF sensors measure close low-reflectance objects while limiting autofocus power use.

Template pulse profiles and lookup-based resolution parameters improve LiDAR distance accuracy without high ADC clock rates or heavy processing.

Dual light sensing regions and calibrated intensity comparison help proximity sensing distinguish object distance while reducing unwanted reflections.

Apertures or light-blocking plates intercept stray echo paths in folded lidar receivers, suppressing ghost lines without losing valid ranging.

Controlled laser diode current and temperature create narrow-band pseudo thermal light for ghost imaging and range sensing without speckle or intensity loss.

Separating frame capture from distance measurement timing reduces infrared light interference while preserving image quality in low light.

Sub-pixel environmental light measurements create a noise reference that improves TOF distance accuracy without extra receivers or frame-rate loss.

Accounts for lens thickness and distortion correction in TOF ranging to improve focal distance accuracy and 3D point cloud conversion.