Hi Eric, Plan Optik GmbH in Germany (http://www.planoptik.com) can make an appropriate offer for such a filter. Please contact me. Best regards, Carsten Wesselkamp Plan Optik GmbH Unter den Eichen 56479 Elsoff Germany Tel.: +49-2664-5068-25 Fax: +49-2664-5068-91 -----Original Message----- From: Eric Sanjuan [mailto:EricS@Bridgewave.com] Sent: Monday, June 02, 2003 7:46 PM To: mems-talk@memsnet.org Subject: [mems-talk] filter out 334nm from aligner hello all, I'm looking for a material, preferably a 5" glass plate, that I can use to cut out <350nm wavelengths ( I really only need to cut out the 334nm peak) from my aligner. Can anyone point me in some direction? I have found a glass on Schott called wg320 which I could have an optical film put on to cut out the 334nm peak. Does anyone know of a vendor that can provide this service for a small lot (one piece) at a reasonable price (Melles Groit would charge in the 1000's)? thanks in advance, eric