Lincoln Laser polygonal laser scanner achieves scan rates greater than 10 kHz

Sept. 13, 2010
The “KW Series” polygonal laser scanner features copper mirrors to dissipate heat more efficiently and produce faster scan rates than are possible with galvanometer-based scanners.

The “KW Series” polygonal laser scanner features copper mirrors to dissipate heat more efficiently and produce faster scan rates than are possible with galvanometer-based scanners. In typical applications, the scanner can safely handle beam power densities of 1000 W (1 kW) per square millimeter. Active scan angles greater than 120° or scan rates greater than 10 kHz can be achieved, depending upon configuration.
Lincoln Laser
Phoenix, AZ
www.lincolnlaser.com

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PRESS RELEASE

NEW ‘KW SERIES’ POLYGONAL SCANNERS UTILIZE COPPER MIRRORS TO IMPROVE PERFORMANCE OF HIGH-POWER LASERS IN MATERIAL PROCESSING APPLICATIONS

PHOENIX, AZ – February 16, 2010. Phoenix-based Lincoln Laser Company has introduced the ‘KW Series’ Polygonal Laser Scanner featuring copper mirrors developed for material processing applications utilizing high-energy laser sources.

Lasers utilized in material processing applications are rapidly becoming more powerful. As a result heat dissipation on galvanometer mirrors has become an issue in some applications. When galvanometer mirrors are enlarged to compensate for high-power lasers, the scan rate inherently slows down.

Lincoln Laser Company's new ‘KW Series’ Polygonal Scanners dissipate heat more efficiently and produce faster scan rates than are possible with galvanometer-based scanners. The heart of the ‘KW Series’ scanner is a solid copper polygonal mirror. The copper substrate conducts heat very efficiently, acting as a large heat sink which draws heat away from the mirror facets. Additional heat dissipation occurs naturally as the polygonal mirror rotates allowing the laser beam to transfer rapidly from facet to facet minimizing dwell time experienced on any singular facet.

In typical applications, a ‘KW Series’ Polygonal Scanner can safely handle beam power densities of 1,000 watts (1 kilowatt) per square millimeter.

‘KW Series’ copper polygonal mirrors are available for many of Lincoln Laser Company's standard precision scanning motors. Depending upon the mirror/motor combination, one can achieve active scan angles of greater than 120 degrees or scan rates of over 10 KHz. ‘KW Series’ Polygonal Scanners can also be custom designed to meet thermal, optical, speed and accuracy requirements for lasers of all wavelengths and power levels.

Posted by Lee Mather

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