KEYENCE LV-S71 Ultra-Small Laser Sensor Head
The LV-S71 is a high-precision, ultra-small thrubeam laser sensor head from Keyence’s NEO Series. Designed specifically for detecting minute targets in extremely confined industrial environments, the LV-S71 utilizes a highly collimated visible red laser. This model is engineered to provide unmatched stability and precision, making it a benchmark for micro-object detection in high-speed automated processes.
Technical Specifications and Performance
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Model: LV-S71 (Thrubeam type)
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Light Source: Visible Red Semiconductor Laser (Wavelength: 660 nm)
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Laser Class: Class 1 (FDA (CDRH) Part 1040.10, IEC 60825-1)
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Detecting Distance: Up to 500 mm (Standard) / 200 mm (High Resolution)
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Beam Diameter: Approx. ø0.05 mm (at 100 mm distance)
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Enclosure Rating: IP67 (IEC60529)
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Ambient Temperature: -10 to +50 °C (No freezing)
High-Precision Optical Engineering
The LV-S71 is distinguished by its ultra-fine beam spot, which remains concentrated over its entire operating range. This allows the sensor to detect targets as small as a few microns, which is essential for the semiconductor and electronics industries.
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Small Form Factor: The miniature sensor head allows for installation on thin plates and inside mechanical assemblies where standard photoelectric sensors cannot fit.
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Class 1 Laser: Provides a safe yet powerful light source that requires no special laser safety precautions while ensuring high-intensity light for reliable penetration through airborne dust or mist.
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Ruggedized Design: Despite its small size, it features an IP67 rating, ensuring the internal optics are protected against dust and water ingress in harsh manufacturing zones.
Industrial Applications and Integration
The KEYENCE LV-S71 is optimized for the following high-tech applications:
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PCB Component Detection: Verifying the presence of micro-SMD components and lead frames.
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Precision Edge Control: Monitoring the exact edge position of thin films, foils, or wafers.
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Drill Breakage Monitoring: High-accuracy verification of small-diameter drills and taps in CNC machinery.
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Compatible Amplifiers: Designed for seamless integration with Keyence LV-N series (LV-N11P, LV-N11N) and LV-S series digital laser amplifiers for advanced sensitivity adjustment.
