Path: utzoo!attcan!uunet!ncrlnk!ncr-sd!hp-sdd!hplabs!hpda!hpcuhb!hpcllla!hpclisp!hpclkms!ken From: ken@hpclkms.HP.COM (Kenneth Sumrall) Newsgroups: sci.electronics Subject: Re: Looking for Blue LEDs Message-ID: <560003@hpclkms.HP.COM> Date: 21 Sep 88 21:54:12 GMT References: <1138@nmtsun.nmt.edu> Organization: HP NSG/ISD California Language Lab Lines: 17 / hpclkms:sci.electronics / cep4478@ritcv.UUCP (Christopher E. Piggott) / 8:23 am Sep 20, 1988 / Yes. Blue LED's exists, and are made by Siemen's Optoelectronics. They come in a stantard T1-3/4 package, and are packaged in CLEAR plastic. The forward voltage drop is ~4V. When I called Siemen's to ask for a sample, they told me they cost ~$50.00! They are made from silicon carbide, and emit light at 420 nm. (I am not sure about the wavelength. This is all from memory.) If you want to call Seimen's about them, the part number is: LDB 5410 Good luck getting one. Kenneth Sumrall HP California Language Labs ken%hpclkms@hplabs.hp.com ...!hplabs!hpclkms!ken