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New SICK LED Gets Right To The Point |
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Wednesday, 21 July 2010 16:34 |
 SICK (UK) has increased the intensity, brightness and accuracy of opto-sensor technology with the new Pin-Point LED, enabling faster and more accurate quality control for the electronics industry.
The Pin-Point, which delivers performance comparable to a short-range laser scanner, will significantly broaden the range and performance of SICK’s LED-based photoelectric switches and photoelectric proximity switches
A new design of LED, the Pin-Point vastly increases light spot intensity and concentrates the energy on a much smaller area. Pin-Point boasts greater functional reserves, improved detection reliability and the capacity to detect longer ranges.
Using the Pin-Point, SICK photoelectric switches can detect much smaller objects, down to 1mm, and distances up to 500mm, providing an innovative alternative to Laser diode photoelectric switches.
Pin-Point technology doesn’t require the safety regime required for lasers, has a wider temperature operating range and, at 100,000 hours, typically lasts twice as long as a laser diode device, offering significant purchase and in-use cost savings.
Phil Dyas, sensor specialist, SICK (UK), commented: “The Pin-Point is an amazing development in the world of opto-sensors, it represents a similar technological leap as the change of transmission light source from light bulb to LED.”
The Pin-Point development has completely reconfigured conventional LED design, by removing the bonding wire at the tip of the LED, which creates a very distinctive central black spot in the emitted light, and a halo of lower intensity light. The resulting Pin-Point spot has virtually no halo effect and its homogenous intensity enables a much tighter and precise focus.
Alignment with the sensor is simplified, the tighter spot ensures a longer range and the more concentrated light helps overcome contamination and dirt which can occur during application.
Dyas concluded: “Pin-Point LED design takes the photoelectric and proximity sensor into a precision detection role. It also gives us scope for reducing the number of sensors needed for an application, increasing the potential applications for LED sources.”
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electrical industry photoelectric switch news, electricaldigest.co.uk
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