Spectro-Film
Manufacturer of optical filters and coatings. Stocking of laser and laser diode filters. Hard oxide sputtered and ion-beam assisted optical filters.
http://www.gaertnerscientific.com
http://www.majestic-coatings.com/
http://www.opticalcoatings.com/
http://www.techmark.nl/ocj/index.htm
http://www.thinfilmcenter.com/