From: Gaurang Hirpara Subject: Re: TECH: Voltage for glasses? Date: Thu, 14 Jan 1993 13:33:28 -0500 (EST) >In article 16638@philabs.philips.com, kkt@philabs.philips.com >(Kim-Kiat Tan) writes: > >>How much voltage is needed to turn the glass on & off ? I built the >>serial interface according to the diagram I downloaded, and it doesn't >>shut the glass dark enough, and when I measured the voltage, it's +/- >>0.5 volts. > >Question: > > Is the 0.5V measured when the glasses are connected? > >If not, maybe you have a short in the wiring or a faulty solder joint... > >If the glasses are connected when you measure it, it could be some >kind of breakdown of the LCD (as a wild guess) > >Willie My results seem to suggest that if you supply ~9V the glasses will dim, ~10V and the darkening is just about total. It's been a while, and I don't have the results on me, but flipping the direction of the sense of the voltage will alternate which eye gets darked. --dan *************************************************************** gh1r@andrew.cmu.edu Opinions? Vee don't need no stinkin' opinions.