Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!agate!garnet.berkeley.edu!macklin From: macklin@garnet.berkeley.edu (Macklin Burnham) Newsgroups: comp.dcom.lans Subject: IR ethernets Message-ID: <22121@agate.BERKELEY.EDU> Date: 27 Mar 89 19:02:40 GMT Sender: usenet@agate.BERKELEY.EDU Reply-To: macklin@garnet.berkeley.edu (Macklin Burnham) Organization: University of California, Berkeley Lines: 6 Keywords:infrared,laser,safety is considered a class IIIb device. What measures are necessary to keep someone from looking into the transmitter long enough to sustain retinal damage? Since our potential applications for this technology would involve unattended operation on rooftops, I'm looking for reassurance that the infrared beam is not powerful enough or focused enough to be a hazard.