Photoelectric Miniature Light Sensor Panasonic PM2LF10, diffuse ON, sensing 2.5–8 mm

Panasonic PM2LF10 is a miniature photoelectric light sensor with diffuse ON switching behavior and a short sensing range of 2.5–8 mm. The compact optical element and housing are designed for small-form-factor object detection and presence sensing in confined spaces where non-contact, close-range detection is required. This sensor delivers simple diffuse reflection detection suitable for integration into automation equipment, robotics end-effectors, and compact assembly stations.

Advantages

The sensor's very small size enables installation in tight mechanical assemblies and narrow mounting positions. Diffuse ON operation simplifies wiring and logic integration by providing a clear light-on output when a reflective surface is present within the specified range. The short sensing distance improves stability for near-field detection, reducing sensitivity to background objects beyond the intended detection zone.

Suitable for

• Short-range object presence detection on assembly lines
• End-of-arm tooling and small robotic grippers
• Position verification in compact automation modules
• Detecting parts with reflective or matte surfaces within a few millimetres

Key specifications

• Operating principle: diffuse reflective photoelectric sensing
• Switching mode: light-on (diffuse ON)
• Sensing range: 2.5–8 mm
• Form factor: miniature optical sensor for tight spaces
• Target type: reflective surfaces and nearby objects

How to use

Mount the sensor facing the target area so the emitting and receiving optics have a clear view of the detection zone at the specified range. Adjust the position so that targets passing through the 2.5–8 mm window reliably interrupt or reflect light to produce a stable ON output. Ensure wiring follows the device's electrical specifications and that the sensor is secured to prevent movement or vibration that could change the sensing distance. Test detection with representative parts to confirm reliable switching before final commissioning.

Recommendations

For consistent performance, keep the optics free of dust and debris and avoid strong ambient light directly shining into the sensor. Use reflective targets or apply consistent surface finish when possible to improve detection reliability within the 2.5–8 mm range.