Thanks that was a very cool presentation. Amazing that they made a
sustainable commercial success out of something so wildly impractical.
And the fact they made incremental improvements on the concept instead
of giving it up for some different scheme is amazing.
I got a sense that the engineer I met was doing something similar with a
spinning acrylic disc. Maybe same modulation technique with a solid
instead of a liquid hydrocarbon. I will have to research this some
more. I don't recall his name, we (My employer Motorola) needed an
expert witness at the time and this guy was probably from IEEE. I was
there to give him some technical input on an 800 MHz communications
system sale that was involved in a legal contest.
Joe
On 10/31/2018 5:54 PM, Julien Goodwin wrote:
Reminds me a little of the crazy Eidophor projectors.
"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."
https://www.youtube.com/watch?v=3-BvMcqEc98
https://en.wikipedia.org/wiki/Eidophor
On 31/10/18 04:39, Joe Leikhim wrote:
This is fascinating. I am a bit skeptical if this actually happened.
I had an opportunity to meet an engineer that was involved with early
HDTV development. Apparently early in his career he invented a color
projection CRT for cinema. It had some sort of target inside of it (I
think plastic) that was subjected to the electron beam but would outgas
hydrogen in significant amounts and that hydrogen would ionize in the
electron beam which was undesired. So they incorporated a band of
titanium around the neck of the tube and the titanium apparently allows
hydrogen to collect and migrate through it even though there is a vacuum
inside the tube. It worked as intended. Then the Chinese tried to
replicate the design and did not use a titanium band because they had no
idea it had a purpose. Their tubes failed miserably.
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Joe Leikhim
Leikhim and Associates
Communications Consultants
Oviedo, Florida
[email protected]
407-982-0446
WWW.LEIKHIM.COM
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