[time-nuts] MEMS oscillators

[Joe Leikhim]

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.
>>
>>
> ---
> This email has been checked for viruses by AVG.
> https://www.avg.com
>

-- 
Joe Leikhim


Leikhim and Associates

Communications Consultants

Oviedo, Florida

JLeikhim at Leikhim.com

407-982-0446

WWW.LEIKHIM.COM