A proximity sensor detects peak intensity of reflected signals to determine distance from a surface.
A self-calibrating optical feedback loop detects emitted light and dynamically adjusts the VCSEL drive current to eliminate manual calibration steps.
A dense multi-axis array of photosensitive elements detects motion via differential photocurrents, resolving signal dropouts during off-axis movement.
An automated larvae counter replaces manual sampling with optical detection and gravity flow, improving measurement precision while reducing labor intensity.
Extending the illuminating path length beyond the imaging path increases light throughput and return signal strength for far-out symbols.
Pre-classifies interfering light objects outside the detection region to prevent false negatives caused by depolarizing materials.
A limit switch uses a slit in the plunger to modulate light incidence on a receiver, enabling signal output based on displacement.
A modular plug-in accessory with an omni-directional light indicator connects to a light curtain end cap.
An integrated optical finger navigation module combines infrared sensing and ambient light detection on a single substrate.
A microscope auto focus device uses a laser beam and cylindrical lens to generate an astigmatism light spot on a quadrant photo detector.
Optical counting replaces mechanical wear by using periodic camera triggers to detect bar ends, improving reliability and speed.
An optical filter separates background light from laser beams, enabling accurate target orientation measurement despite interference.
A separated smoke sensor uses wireless optical signals to synchronize transmitting and receiving units without control lines.
An optical pest detector monitors bait consumption via light propagation to resolve maintenance inefficiencies from premature termite feeding.