Optical Rangefinders TRIZ Cases

See how triangulation ranging with multiple light sources and photosensitive surfaces prevents

See how angular-encoded laser patterns replace complex circuitry to determine spatial position,

See how a reflection member in the scan range returns light to the ranging device, increasing s

See how a sensor cover with angular light-blocking openings eliminates body and floor reflectio

See how ultrasonic distance detection replaces manual counting to automatically monitor article

A single light receiving module uses front, side, and upward IR emitters to cut sensing cost and detect overhead obstacles.

A slit-guided ocular tool aligns a scope reticle to firearm features without external references, preventing lateral shot displacement.

Depth and skeleton sensing track presence and movement in real time while preserving privacy and distinguishing multiple people in any lighting.

A spheroidal transmissive cover redirects reflections between stereo viewpoints to suppress stray light and improve image recognition and distance measurement.

A triangular-wave refractive steering approach evens LIDAR beam spacing, improves scan coverage, and lowers power and tuning demands.

Combining short and long camera baselines by object characteristics improves distance accuracy and matching reliability for vehicle sensing.

Combining monocular and stereoscopic phase-difference measurements improves distance accuracy and reliability for non-planar vehicle objects.

Calibrate a work-machine distance sensor from external reference objects when the work tool is outside the measurement area.

Triangular cable-net modules with tension and distance control simplify reflector antenna fabrication and improve shape matching and replaceability.

A fisheye-lens marker measurement approach estimates receiver distance in real time to correct antenna phase shifts and improve short-range power reception.

Multiple protected power units switch to keep a ranging module powered longer, improving battery life and supply reliability.

Dedicated liquid and air nozzles clean LiDAR and camera covers together while offloading cleaning control from the vehicle ECU.

Two-pass distance and brightness filtering removes vehicle LiDAR crosstalk artifacts without extra hardware, improving object detection reliability.

Angled optical windows, baffles, and filters reduce internal reflections and ambient light for more accurate lidar ranging.

A multi-region isolation structure around a SPAD photoelectric conversion device cuts electrical and optical crosstalk while lowering dark current.

Non-overlapping observation sets let parallel filters avoid temporally correlated detections while preserving update frequency for autonomous robot tracking.

Predicted LIDAR sectors isolate trailer data, reducing compute waste and improving pose estimation for autonomous tractor-trailers.

Temperature data along the lens optical axis is used to correct focal shifts and keep vehicle distance measurement accurate in harsh conditions.

Controlled Risley prism rotation approximates a triangular waveform to even LiDAR scan spacing, improve coverage uniformity, and cut power use.

A shared ECU links two vehicle cameras to add stereo depth sensing while cutting wiring, weight, cost, and hardware complexity.

Asymmetric circuit placement and heat-transfer paths balance left-right sensor temperature and reduce imaging element heating.

Oblique light reflection sensing detects substrate passage accurately in complex transfer paths with multiple processing and load lock modules.

Offsetting parallel light emitter arrays from their optical axes removes non-irradiated gaps while preserving strong, continuous illumination.

Multiple comparator thresholds and time-walk correction extend measurable distance while improving point cloud density and accuracy under external light.

A hafnium-oxide pass filter blocks harmful UV wavelengths so an excimer bulb can sterilize occupied spaces with IoT-based use tracking.

IMU-based posture checks accept calibration only when the work implement is statically stable, improving guidance and control accuracy.

Position sensing and stored site coordinates let a work machine measure distances to unreachable points without entering difficult areas like rivers.

Separate timing and reflection receivers with guided pulse paths correct emission and reception variation for more accurate distance measurement.

A light control mechanism redirects LiDAR beams by road condition, extending object detection range while preserving usable return light.

A microlens array and telecentric afocal layout raise ToF ranging resolution without enlarging the light receiving element array.

DRAM memory bins and inter-pulse refresh cut SRAM transistor overhead in LIDAR pixels while preserving time-of-flight resolution and range.

Microlens beam splitting with a telecentric afocal layout keeps emitter and receiver views aligned for compact, high-resolution ToF sensing.

A resistor-and-transistor clamping circuit limits SPAD overvoltage before it reaches the readout path, preventing breakdown under excessive laser light.

Separating returning beams by polarization lets a LiDAR pixel raise SNR, improve surface discrimination, and sharpen object and velocity detection.

A microresonator PIC and coherent in-line balanced detector remove isolators and circulators, enabling more compact LiDAR with higher pixel resolution.

Flexible-sheet pivots and electromagnet-driven mirror motion widen vehicle detection coverage while limiting vibration and shock effects.

A balanced Maxwell bridge coil with temperature correction improves foreign object detection in wireless power transfer, including small metal objects.

Unique VCSEL beam profiles encode source identity, enabling faster 3D object positioning without complex correspondence processing.

On-chip signal processing and selective output cut imaging module thickness while sending only needed image data and metadata.

A reflected light beam and time-of-flight analysis track vertical and transverse contact wire movement without invasive sensors or camera systems.

Adjusts acceleration and deceleration timing during stereo camera distance correction to avoid sudden braking from temperature or mounting drift.

Internal signal processing and selective image or metadata output cut transmission load while keeping imaging modules compact.

Image-based template matching realigns removable vehicle sensors after replacement, preserving computer vision accuracy across similar vehicles.

A back-illuminated ToF sensor moves wiring off the light-receiving surface to raise sensitivity, suppress noise, and improve distance accuracy.

Electro-optic resonator feedback injection-locks an on-chip laser to narrow linewidth and enable compact FMCW lidar sources.

A chalcogenide-glass lens layout reduces Petzval sum to correct aberrations while keeping a small f-number for infrared distance measurement.

A multilayer hafnium oxide pass filter blocks UV above 231 nm, enabling excimer sterilization that kills pathogens without harming human tissue.

Optical triangulation measures the showerhead-to-support gap through a chamber window, enabling precise high-temperature alignment despite bowing.

Adjustable duty cycle correction aligns light emission and depth measurement signals to reduce depth errors and improve image data quality.

A saturated optical amplifier keeps LIDAR output amplitude constant during frequency tuning, improving distance and velocity data reliability.

On-chip signal processing and selective output reduce image data transfer while helping imaging sensors stay thin and compact.

A duty cycle feedback circuit corrects timing mismatches between light emission and depth measurement to improve depth accuracy and image data reliability.

Digital pulse counting in a laser rangefinder replaces amplitude-based timing to reduce timing walk error and improve long-range distance accuracy.

Aligning camera images with LIDAR reflections helps derive road elevation and vehicle speed for more precise autonomous navigation.

Mode switching across frequency, exposure time, duty ratio, and light intensity extends distance measurement range while avoiding saturation.

Corrects Doppler shift errors in FMCW LiDAR surface scans by using distance and time differences to calibrate oblique measurements.