Electromagnetic Wave Reradiation TRIZ Cases

A statically inclined 3D LIDAR uses UAV yaw rotation to achieve full indoor spherical scanning without added motors, weight, or blind zones.

A passive reflector creates a secondary beat frequency from uncollected backscatter, doubling FMCW LiDAR distance resolution.

Time-multiplexed VCSEL pixel sets cut lidar current and power density while reducing jamming and detector complexity.

An internal optical fiber reference path enables frequent LIDAR distance calibration without external targets or narcissus-signal saturation.

Mirror-symmetrical triangular detector regions and an amplitude-phase grating suppress unwanted harmonics for precise 2D position measurement.

Current-threshold feedback switches SPAD bias and recharge current to suppress afterpulsing while preserving single-photon detection stability.

Reflectivity-indexed DRNU calibration matrices correct receiving-unit distance errors in continuous-wave LiDAR while preserving fast ranging.

Adjustable alignment optics and feedback correct beam angular errors before the output lens, preserving regular LIDAR scan spacing.

Spatial modulation replaces mechanical scanning so radar can derive distance from multiple points and improve resolution and imaging completeness.

Using long-period internal and short-period external modulation, this case shows how optical ranging gains both long distance and high resolution.

A reflected backscatter path replaces optical splitters and recombiners, shrinking FMCW heterodyne LiDAR while preserving beat-frequency ranging.

Two lasers with different wavelengths and chirp rates separate vibration noise from target motion, improving LiDAR distance and speed sensing.

Priority-based sector scanning steers LiDAR toward high-risk points of interest to cut reaction time while preserving multi-directional coverage.

A single transmitter-receiver uses helical light scanning to capture 3D surroundings around a movable body without multilayer LIDAR cost.

Contoured fins and fan-driven airflow cool vehicle sensor hardware and clear debris from the window without complex cooling pipe routing.

Different pixel regions use short and long accumulation periods to speed low-light recognition while limiting noise, blur, and power use.

Rising waveform extraction and pre-stored laser signatures help verify reflected light faster and reduce false distance measurements in noise.

A refraction member redirects oblique infrared reflections through a band-pass filter, widening reception angle without sacrificing S/N ratio.

An aperture, waveguide, and mirror co-align LiDAR transmit and receive paths to block background light and reduce parallax errors.

Time-of-flight, mmWave, and vision sensors detect nearby objects so the treadmill can alert users or slow and stop the belt.

Dynamic grouping of LiDAR detection elements boosts weak-return sensing at long range while staying within eye safety limits.

MAP-based point cloud association and clustering improve extended object tracking when noisy measurements and closely spaced targets complicate assignment.

A reference channel and optical IQ mixing cancel Doppler-shifted LiDAR signals, cutting bandwidth, electronics complexity, and cost.

A coaxial visible pilot beam guides alignment of an infrared distance sensor while preserving ambient-light resistance and detection sensitivity.

An offset optical receiving module compensates LiDAR walk-off angle, keeping return light centered to reduce signal loss and improve echo validity.

Sequential observation windows separate background noise from return pulses, keeping SPAD-based ToF distance sensing linear under intense light.

By adjusting only the mirror return stroke, scanner timing stays synchronized with external LiDAR signals without degrading distance accuracy.

Combining non-sinusoidal control signals with different duty cycles cuts harmonic noise in CW ToF modulation while keeping accuracy and cost in check.

Phase-coded transmission pulses preserve pulse association over long distances or short pulse periods, enabling accurate optical time-of-flight measurement.

Combining depth images with luminance-based clustering helps detect low-reflectance objects that 3D point clouds alone often miss.

Heater wire spans the LIDAR projection window with spacing at least equal to beam width, improving defogging without bending or blocking light.

Per-pixel reverse bias tuning matched to breakdown voltage cuts shading noise and improves ToF distance image accuracy.

Transmission and reception optics reshape VCSEL LiDAR light paths to widen horizontal FOV while reducing distortion, size, and power use.

Adjustable beam-shaping arrays adapt laser and reception beams to scattering or reflecting targets while reducing overload and distance errors.

Magneto-optic switches and orthogonal fiber arrays replace moving scanners in LiDAR to expand field of view, raise frame rate, and improve reliability.

Dynamic lidar emission control lowers power and optical crosstalk near detected objects while preserving short-range ranging precision.

Combines outputs from multiple ground filters with point and cell features to classify terrain more accurately without manual tuning.

Brush bristles span the rotating sensor gap to limit airflow escape and debris ingress while preserving cooling and a clear field of view.

By integrating an acoustic sensor into a radar or camera housing with a shared harness, vehicle installation space and assembly work are reduced.

Dual-wavelength sensing uses an LED feedback path to set photosensor bias, improving sensitivity and distance measurement accuracy.

A depth-controlled trench isolation layout suppresses local electric field peaks, reducing dark count and crosstalk in smaller APD pixels.

Adaptive high-rate sampling of free-running laser pulses resolves TOF ambiguity and improves electro-optical distance precision with simpler hardware.

Selective VCSEL block illumination and parallel sensor readout improve ToF depth accuracy under background light while cutting power use.

Pixel scattering coefficients correct TOF distance errors when close objects scatter light and distort far-range measurements.

Gas-absorption mid-infrared imaging combines active and passive signals to identify low-contrast targets and calculate distance for 3D views.

SNR-based weighting across macrocell sensor elements sharpens LiDAR time-of-flight histograms for longer-range, more reliable detection.

Phase-change pulse modulation improves optical distance measurement by resisting reception noise and waveform distortion during ranging.