New CVI Melles Griot SafeClose™ Shutters for Laser Applications



November 6, 2012

November 6, 2012, ROCHESTER, NY - CVI Melles Griot introduces SafeClose laser shutters, based on the proven rotor drive actuation technology modified to close on power down. The proprietary Rotor Drive actuator provides a reliable, multimillion-cycle operation and ability to withstand harsh environmental conditions, including wide temperature variations (from -40°C to +70°C), high shock, and vibration in a clean environment.

Designed for laser safety and laser switching, the SafeClose shutter was designed to be highly reliable and to always maintain laser safe conditions by closing automatically when power is interrupted. The fail-safe magnetic return mechanism guarantees that the blade will reliably close upon signal interruption. The SafeClose shutter does not require a separate controller and a simple 9V DC signal is sufficient to actuate the shutter and hold it open. With its small diameter/aperture, SafeClose shutters work efficiently with small beam diameter lasers and provided with a standard gold-plated blade design for high laser damage thresholds. Other optional blade coatings are available to meet specific laser line performance requirements.

SafeClose laser shutters are appreciated by volume manufacturers of laser launches and engines for the following reasons:

 Multimillion cycle life expectancy
 Fail-safe magnetic blade return
 No separate controller required
 High shock and vibration resistance
 Reliable operation from -40°C to +70°C
 High laser damage threshold blade coating
 High reliability
 Simple actuation signal
 Low power consumption

SafeClose shutter are manufactured in Rochester, NY at the CVI Melles Griot-Optical Systems manufacturing facility.

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