Photometry Using Reference Value TRIZ Cases

See how ambient light comparison across sensor groups validates trigger events to reduce inadve

See how a refrigerator door uses light transmission through a front plate to enable dynamic col

See how a refrigerator door uses a light source and front plate with transmission correction to

See how a removable blocking member prevents foreign substances from adhering to optical lenses

See how multiple light sensors aligned along polyhedron faces detect light direction without di

See how multiple light sensors aligned along polyhedron faces enable omnidirectional sensing an

See how a solar tracker uses photo-sensitive sensors and three linear actuators to achieve auto

See how a net radiometer measures sky-to-building radiation difference to dynamically adjust HV

Optical pulse reflection compares live and background signals to detect moving or stationary aisle objects before mobile storage closes.

A rotating sunlight beam sweeps lighting zones in sequence, using persistence of vision and solar tracking to cut energy use.

Fringe-pattern reflection and camera-based boresight measurement characterize CSP mirror slope errors in real time to improve alignment and power output.

A portable pyranometer array measures divergent heliostat beams at long range, separating low irradiance from ambient light for accurate evaluation.

A motor-driven arcuate shade arm tracks the sun automatically, reducing adjustment needs while keeping pyranometer sensors clean and accurate.

Adjusting photovoltaic module orientation curbs short-term power swings, giving large solar plants finer output control without storage.

Resilient flexible beams rotate light receiving elements without joints, cutting solar tracker bulk, dust-related failures, and maintenance.

Multiple light sensors replace astronomical tracking to keep solar panels aligned on moving platforms and under cloud cover.

A motor-driven arcuate shadow arm tracks solar movement, avoids frequent adjustment, and adds sensor cleaning for lower-maintenance pyranometers.

Concentrated electromagnetic radiation is transmitted through optical conduits, then separated into heat, light, and electricity while managing cable heat.

A low-intensity signal beam enables closed-loop heliostat alignment without blinding sensors or taking mirrors off-sun for calibration.

A spring-biased worm and spur gear with multi-stage mounting cuts heliostat backlash and reflector flexing for more accurate sunlight redirection.

Photosensor difference signals and inclinometer data let solar collectors track the Sun more precisely with less mechanical wear and complexity.

Flexible beams convert support translation into sun-tracking rotation, cutting joint complexity, dust-prone wear, and system bulk.

A color sensor and control unit match vase and light wall lighting to flower color, creating real-time interactive floral display.

A motor-driven arcuate shadow arm tracks solar position, avoids frequent declination adjustment, and adds sensor cleaning for stable pyranometer use.

Opposed bending moments shape an elastic reflector panel into a precise solar curve, improving concentration and focal length adjustment.

A removable bulk dishwasher dispenser detects low chemistry and ambient light to alert users only when present, reducing refills and power use.

An onboard imager lets each heliostat align sun and receiver spots antipodally, improving tracking accuracy without centralized calibration.

Varying reflector curvature redirects edge rays toward the receiver center to limit misalignment losses and hot spots in solar collectors.

Extended end reflectors capture sunlight that would escape at trough ends, boosting solar collector output and light utilization.

Compound-curved reflector panels and a space frame support improve CPV flux uniformity, airflow, and tracking while lowering structural cost.

Three linear actuators and a universal joint keep a solar platform aligned from horizon to zenith with low energy use and minimal setup.

Artificial light reflections and tower cameras let multiple heliostats be calibrated in cloudy or nighttime conditions with less time.

A variable-curvature reflector redirects edge rays toward the receiver center to reduce hot spots, tolerate misalignment, and improve solar collection.

An onboard imager keeps sun and receiver spots antipodal, enabling autonomous heliostat alignment with faster calibration and less central control.

A-shaped solar module pairs alternately power tilt and rotation motors, keeping panels aligned through daily and seasonal sun-path changes.

Measures actual windshield light attenuation with integrated optics and rain sensors to calibrate vehicle cameras without glass-specific setup.

Dual luminance detection adjusts laser energy density in real time to stabilize pulse waveform and keep silicon film processing consistent.

Driver target-recognition tests at different speeds and brightness levels set tunnel midsection lighting standards that reflect real visibility needs.

Protected tapered metal layers in optical filters narrow color passbands, reduce angle shift, and improve image sensor color stability.

Low-frequency monitoring current feedback matches APD gain, improving common-mode noise removal and SNR in optical inspection.

Directional light sensing lets a vehicle display adjust backlight by incident angle, improving screen visibility under uneven ambient lighting.

A recessed heat sink mount embeds hardware inside the fin array to lower vehicle light profile while improving heat dissipation.

Separating SPAD photodiodes and counting logic onto two substrates cuts circuit scale while preserving sensitivity, pixel density, and power saving.

Feedback equalizes low-frequency APD monitoring currents to match bias conditions, improving common-mode noise rejection and SNR.

Photodiode slope-based current control stabilizes microscopy laser output despite temperature drift, avoiding bulky active heat regulation.

Photodiode slope calibration stabilizes microscopy laser intensity and coherence without bulky active heat regulation.

A reference emission curve and differential analysis isolate weak plasma signals to stop high aspect ratio etching at the right endpoint.

An internal movable conductive shield replaces external choppers, shrinking radiation sensors while preserving modulation and characterization.

Ambient light differences between two photosensors detect device presence, cutting wireless charger standby power without active signals.

Factory-stored calibration keeps laser output below exposure limits at a set audience distance, cutting venue setup and expert testing.

A remote ambient light sensor, integrated with a rain sensor, avoids mirror-area occlusion and improves rearview mirror auto-dimming control.

A segmented LED chip combines emitters and detectors on one die, sharing optics to simplify adaptive headlight control and improve energy use.

A dual-phase quantization scheme captures high-intensity light during exposure and low-light signals after exposure to improve sensor dynamic range.

A stacked visible and near-infrared sensor with selective optical filtering improves low-light sensing without enlarging the sensor footprint.

A behind-display proximity sensor uses light blocking and pixel shutdown during calls to avoid visible spots, display interference, and wasted power.

Polarization optics separate visible light from infrared interference, enabling accurate ambient brightness sensing in thin display borders.

Shared illuminance data helps vehicles anticipate sudden light changes and adjust cabin brightness before tunnels, bridges, or overpasses.

A switchable MPD comparison circuit accepts source or sink photodiode current, improving OMA control accuracy across laser package polarities.

Transfer-matrix light control adapts sensors, lamps, and shading to room changes without manual recalibration, keeping illumination consistent.

An optical sensor in the welding helmet records arc time at a set light threshold, cutting monitoring cost without advanced power sources.

A beam detector monitors laser power between source and work area to catch interference early and trigger shutdown or interlock protection.

Camera exposure data is reused to estimate ambient brightness and control light source output without adding a separate illuminance sensor.

Ambient light sensing adjusts IR time-of-flight sensitivity to reduce false absence detection and improve timely user presence response.

Beam power monitoring detects laser path interference in CNC fabrication and triggers shutdown to prevent damage and preserve accuracy.

Predefined bending edges turn a planar substrate into a 3D optical assembly, cutting manual adjustment while preserving precise off-axis alignment.

Direct edge-to-edge light measurement verifies lens presence and damage in real time, helping maintain laser safety compliance.

Weak light changes are amplified through converter and boosting feedback circuits, enabling accurate event detection with fewer transistors.

A reference photodiode and difference amplifier subtract dark-current errors from the live signal for accurate high-temperature sensing.

A feedback circuit combining conversion and boosting signals amplifies weak sensor outputs while reducing transistor count and design area.

A two-phase switched-capacitor delta-sigma circuit boosts ambient light sensor gain while minimizing switch errors and low-light noise.

Multi-stage converter and boosting feedback amplifies weak light-intensity changes for event-based sensing with fewer transistors and lower data load.

A switched calibration current replaces the band-gap reference to keep light sensing accurate while cutting IC area and power use.

Converter and boosting feedback circuits amplify weak light-intensity changes for event sensing while limiting transistor count and pixel area.

Barrier objects block light paths in conducting channels, triggering self-destruct programs upon unauthorized disassembly to protect data.