Diagnostics Using Light TRIZ Cases

See how a handheld UV light device with touch-screen control illuminates hidden contamination o

See how a handheld device combines UV and visible light sources to illuminate contamination on

See how a thin-portion resin seating part transmits infrared light for optical pulse detection,

See how segmented sensors at multiple heights differentiate falls from movements, enabling auto

See how segmented detection zones distinguish bed movements from actual falls and exits, enabli

An optical fiber mat tracks baby movement and breath counts through light attenuation, reducing false alarms from vibration and mattress interference.

Near-infrared sensing maps body fat thickness at multiple anatomical points, helping users visualize localized obesity more clearly.

Multiple resonator cavities enable continuous wavelength sweeping in a compact spectrometer, improving wearable bio-measurement accuracy.

A magnetic shield between the light source and detector blocks stray light in a compact wearable biometric sensor while preserving charging layout flexibility.

A conductive guidewire carries power and sensor data on one wire, enabling precise catheter positioning and physiological measurement with less imaging risk.

Filters, check valves, and controlled airflow keep a vehicle gas sensor chamber clean for accurate multi-substance breath detection.

Organic orientation control in hybrid phototransistor layers enables wearable biosignal sensing with both low power use and high measurement precision.

Real-time spectroscopic feedback identifies tissue composition and adjusts laser delivery to limit non-target exposure and wasted energy.

A hybrid connector uses movable optical alignment and fiber links to cut optical loss while supporting multi-analyte photoplethysmography.

A movable, spring-backed optical interface maintains physical contact to cut laser transmission loss while keeping PPG sensors removable.

A thulium-doped fiber resonator combines 1560 nm and 1705 nm pulses in one laser source, reducing separate equipment for dual-band output.

A magnetic light-blocking member between the emitter and detector cuts internal light leakage while preserving compact wearable sensor layout.

PPG sensors built into the steering wheel replace camera-based monitoring to cut interference and compute load while tracking driver physiology.

A concentric emitter-detector layout with selective wavelength filtering and Fresnel lenses improves physiological sensing accuracy despite optical losses.

A single conductive pathway uses electric field coupling to power distal sensors and return data, reducing wire complexity in guidewires and catheters.

Multiple resonator cavities enable coarse and fine spectral scanning in a compact on-chip spectrometer for accurate non-invasive glucose measurement.

A 3D PCB, coil, and contact layout improves space use and electrode connectivity for dual bio-signal sensing in compact wearables.

Matter-wave interference replaces contact probes and long baselines, enabling precise angle measurement and surface inspection in small spaces.

A semiconductor-elastomer active layer helps stretchable optoelectronic diodes resist damage while maintaining electrical characteristics.

A concentric emitter-detector layout with selective transparency and a Fresnel lens reduces optical loss for more accurate PPG sensing.

A biometric sensor doubles as an optical data link to bypass noisy in-band charging communication and expand wireless power data exchange.

A guidewire-based power and data link lets distal catheter sensors work with accurate positioning while reducing X-ray and dye use.

A thin InAlAs window lets one InGaAs photodiode detect visible and near-infrared light, reducing detector count and path-length error.

A conductive guidewire carries sensor power and data on one wire, enabling pressure sensing and precise positioning without X-rays or dye.

Two-step heating of a polyamic acid precursor improves polyimide crystallization and boosts photoelectric sensitivity with less processing time.

Pulsed single- or dual-LED sensing measures blood alcohol within seconds while avoiding sensor heating, cooling units, and long stabilization.

Selective quantum dots and multi-wavelength illuminators improve wearable PPG accuracy by filtering noise and motion-corrupted signals.

A time-varying electric field powers and reads catheter or guidewire sensors without physical contacts, improving placement accuracy.

Standardized heartbeat interval probability enables faster, more reliable detection of driver abnormality signs from camera-based monitoring.

Standardized heartbeat interval patterns enable faster, more reliable detection of driver abnormality signs without long monitoring periods.

Wireless self-checks in the charging case compare transducer and microphone responses to stored profiles, enabling early fault detection.

A magnet integrated behind the optical sensor package preserves direct sensing access while maintaining strong wireless charging attachment.

A stacked emitter-filter-detector layout cuts sensor footprint while isolating direct light to improve detection of frequency-shifted backscatter.

A concentric emitter-detector layout with selective optical filtering improves multi-wavelength PPG signal capture and physiological measurement accuracy.

Line-of-sight and tracer gas signals are compared to detect breath-sample tampering without slowing contactless alcohol measurement.

By suppressing yellow light and boosting red output, this case shows how visible-light spectrum tuning makes skin veins easier to distinguish.

A 3D contact unit links cover electrodes to a flexible PCB, fitting dual biosignal sensing and wireless charging into tight wearable space.

A stretchable medium layer with over 60% wavelength transmittance improves skin conformity, signal capture, and reuse durability.

By correlating operator load with biometric response history, this case improves real-time work appropriateness checks despite individual variation.

Combining optical and electrical sensing in one probe enables precise multi-parameter measurement without increasing sensor module size.

A high-quantum-efficiency group III-V receiver and interference-control layout improve optical signal stability and SNR during motion.

Matter-wave interference replaces long baselines and manual alignment, enabling precise non-contact angle measurement in small or microscopic spaces.

A vertically offset emitter-receiver layout improves returned-light stability and signal-to-noise ratio for motion-tolerant physiological sensing.

RF sensing in the charging dock keeps biosignal measurement running during charging, reducing the need to wear the device continuously.

A thin InAlAs window layer lets one InGaAs photodiode cover visible and near-infrared sensing, reducing detector count, size, and path-length error.

A flexible LED module bends to body contours while maintaining uniform light output and safe skin-contact temperature for photodynamic therapy.

Opposite-polarity voltage switching starts and stops laser diode pulses precisely, improving neural activity detection while reducing power use.

Correct photoacoustic signals by estimating laser energy and pulse width from correlation data to offset source aging and stabilize image intensity.

Combining quantum dot white LEDs with 620-700 nm red LEDs lowers COI while preserving CRI, efficiency, and spectral stability for clinical observation.

Perpendicular polarization filters and reflective or absorbing side layers cut optical crosstalk in compact wearable vital-sign sensors.

An annular wearable combines EEG, PPG, and GSR sensing at one site to cut setup time, improve consistency, and reduce noise.

TOF sensing tracks patient-room movement and interaction vectors to flag unacceptable activity without capturing privacy-invasive images.

Isolating DC and AC components from raw PPG signals improves real-time respiration detection despite small respiratory signals, motion, and noise.

A bio-signal measuring apparatus uses a textured finger contact surface to guide consistent finger placement for stable optical sensing.

A biological component estimation apparatus calculates a blood vessel alignment index using dual light sources and detector arrays.

Interfering light generates vertical section images of lingual fur for precise thickness analysis.