Optical Rangefinders TRIZ Cases
- Instrument Height Measurement Using Dual Light Paths in Surveying
Separate reference and distance-measuring receivers remove shutter switching, enabling compact continuous ToF instrument height measurement.
- ToF Distance Sensing with Dynamic Peak Selection Under Interference
Dynamic light-source control and histogram peak selection help ToF ranging resist multi-device interference and spoofed timing signals.
- Indirect ToF Sensing with Multi-Exposure Luminance Timing
Multiple exposure periods preserve reflectance and timing data in indirect ToF sensing, reducing noise and improving distance recognition.
- Hybrid Solid-State LiDAR Control for SPAD Dynamic Range
Dynamic VCSEL power and pulse-width control expands SPAD LiDAR range, reducing short-range saturation and improving long-range sensitivity.
- Laser Rangefinder Interface for Wind-Aware Ballistic Profiles
A multi-position button and inertial navigation simplify profile setup and add real-time wind compensation for accurate ballistic calculations.
- FMCW LiDAR ADC Sharing Across Non-Adjacent Receiving Waveguides
Non-adjacent waveguides share ADCs in FMCW LiDAR to cut converter count, lower crosstalk noise, and improve signal-to-noise ratio.
- Remote Tank Level Monitoring for Predictive Refueling
Remote fuel tank monitors use threshold alerts and predictive scheduling to avoid manual checks, missed refills, and wasted delivery trips.
- Optical Sensor Layout Using Crosstalk for Precise Distance and Angle Sensing
By separating main and crosstalk reflections from multiple emitters, this sensor improves close-range distance and angle measurement with simpler hardware.
- Folded Optical Imaging Layout for Wide-Angle Depth Sensing
Folded optical paths and image inversion enable wide-angle capture with long-focus resolution and more accurate disparity-based distance data.
- Configurable TIA Circuit for FMCW LiDAR Reference and Target Arms
One reconfigurable TIA serves both reference and target photodiode paths in FMCW LiDAR, cutting separate ASICs, complexity, and cost.
- Optical Sensor Baffle Enclosure for Cross-Talk-Free Doppler Sensing
A sealed transmit baffle blocks interface-window reflections from reaching receive optics, improving aircraft Doppler air data accuracy.
- Rotating Wheel Optical Inspection for Full-Circumference Defect Detection
Ultra-high-speed imaging and mixed illumination stitch wheel segments into full-circumference data for accurate profile and defect evaluation.
- LCoS Reticle Optics With Prism Beam-Path Integration
A prism-integrated LCoS reticle and λ/4 plate improve contrast and battery life in long-range optical sights without beam-path interference.
- 3D Measurement Dot Pattern Layout for Accurate Parallax Matching
Poisson disk dot layouts improve stereo image matching on flat or low-contrast surfaces, enabling more accurate 3D shape measurement.
- Light Source Module Feedback for Diffusion Plate Damage Detection
A wave guide and light-quantity sensor detect diffusion plate damage or peeling, allowing the laser driver to stop unsafe ToF emission.
- Cladding Oxidation Quenching Rig With Infrared Rapid Heating
Infrared heating and rail-guided quenching enable precise steam oxidation tests on reactor cladding with controlled heating and cooling rates.
- 3D LiDAR Targeted Field of View for Dense Point Clouds
Multiple parallel LiDAR beams widen field of view without sacrificing point cloud density, while filtered optics and lens shaping improve detection.
- Probe Tip Optical Path Switching to Suppress Stray Light
An absorbing wall opposite the optical path switch cuts probe-tip stray light, improving lateral and depth distance measurement accuracy.
- AR Calibration Using Distance Measurement for GNSS Alignment
Distance and image capture are combined to compute camera-to-antenna offsets, improving AR alignment with real-world GNSS coordinates.
- Time-of-Flight Distance Sensing Under Cluttered Reflections
Histogram peak timing and reflection-count features improve short-range time-of-flight distance accuracy under clutter and multiple reflections.
- FMCW LiDAR Optical Path Layout for Longer-Range Noise-Resilient Sensing
Multiple waveguides with different optical path lengths suppress fiber and optical noise, extending FMCW LiDAR distance and velocity measurement range.
- Variable-Focus Distance Ranging Using TOF and Aiming Dot Parallax
Combining TOF depth sensing with aiming dot parallax helps variable-focus imagers resolve distance errors and cut decode delays.