On Thu, 1 Nov 2018 08:54:27 +1100, you wrote: >"An Eidophor was a television projector used to create theater-sized >images. The name Eidophor is derived from the Greek word-roots eido >and phor meaning 'image' and 'bearer' (carrier). Its basic technology >was the use of electrostatic charges to deform an oil surface."
GE had a projector that wrote diffraction patterns on an oil film with an electron beam and could do color! The projection tube had a palladium diaphragm that let hydrogen from the breakdown of the oil diffuse out. I was trained on its care and feeding, but never went on one of the few conferences they booked. Any LCD projector can, of course outperform that refrigerator-sized box by a LOT. --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.