Product News: Optics & Photonics

Laser Shutters provide multimillion-cycle operation.

Press Release Summary:

Laser Shutters provide multimillion-cycle operation.

November 21, 2012 - Based on rotor drive actuation technology, SafeClose™ Laser Shutters maintain safe laser conditions by closing automatically when power is interrupted. Units feature fail-safe magnetic blade return mechanism and gold-plated blade design for high laser damage thresholds. Other optional blade coatings are available to meet specific laser line performance requirements. Operating from -40 to +70°C, shutters offer shock and vibration resistance and do not require separate controller.

Original Press Release

New CVI Melles Griot SafeClose(TM) Shutters for Laser Applications

Press release date: 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 -40C to +70C), 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 -40C to +70C
• 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.

CVI Melles Griot has served over 40 years of operations in the semiconductor, biotech and life sciences, industrial process, analytical instrumentation, aerospace and scientific and materials research industries. Since its founding in 1972, CVI has combined optical design and precision manufacturing expertise as a leading high volume producer of thin-film enabled optical components and subsystems. CVI Melles Griot provides engineering design and applications support, rapid prototyping services, substrate manufacturing and coating services, advanced metrology, and sub-system design and integration for challenging requirements.

Headquartered in Albuquerque, New Mexico, CVI Melles Griot operates manufacturing facilities in New Mexico, California, New York, the British Isles, Japan, and South Korea with sales representatives and distributors located worldwide. In June 2011 CVI Melles Griot became a unit of IDEX Corporation. For additional information about Melles Griot and its products please visit,

Katie Toma
Marketing Specialist
IDEX Optics & Photonics
200 Dorado PL SE
Albuquerque, NM 87123
Tel: (505) 296-9541 x1280
Fax: (505) 298-9908


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