Topic: 3d is here to stay

[toasty0]

This is wicked cool: http://gl.ict.usc.edu/Research/3DDisplay/

[Bonk]

That is pretty nifty.    Very sci-fi, I kept expecting to see R2 projecting the image.

I found their description of the refresh rate a tad confusing though. I concluded it is 20Hz, which is a bit low but I'm sure could be improved with time. I'm curious how much sound the system makes.

[Tus-XC]

I want one!!! I could use it when I model to get a better view of something lol

[Lepton]

Seems pretty primitive.  A spinning mirror is hardly an elegant solution.  It feels reminiscent of the early concept of a mechanical television or a rotoscope.

[Dracho]

http://www.3dicon.net/

[Bonk]

http://www.3dicon.net/

Pretty vague. Looks vapourwareish. And a gawdawful all-flash website that says a lot about how great they are with lots of buzzwords and very little about any actual technology or hardware. Conclusion: fundraising. Seems to me we saw these guys some time ago as well, but nothing has changed.

[marstone]

http://www.3dicon.net/

Pretty vague. Looks vapourwareish. And a gawdawful all-flash website that says a lot about how great they are with lots of buzzwords and very little about any actual technology or hardware. Conclusion: fundraising. Seems to me we saw these guys some time ago as well, but nothing has changed.

that is what I was thinking, very cool if it works.  Would be nice if they would have a short demo showing that their tech actually does something.

[toasty0]

http://www.3dicon.net/

Pretty vague. Looks vapourwareish. And a gawdawful all-flash website that says a lot about how great they are with lots of buzzwords and very little about any actual technology or hardware. Conclusion: fundraising. Seems to me we saw these guys some time ago as well, but nothing has changed.

that is what I was thinking, very cool if it works.  Would be nice if they would have a short demo showing that their tech actually does something.

Huh? Did you watch the demo all the way through?

[marstone]

http://www.3dicon.net/

Pretty vague. Looks vapourwareish. And a gawdawful all-flash website that says a lot about how great they are with lots of buzzwords and very little about any actual technology or hardware. Conclusion: fundraising. Seems to me we saw these guys some time ago as well, but nothing has changed.

that is what I was thinking, very cool if it works.  Would be nice if they would have a short demo showing that their tech actually does something.

Huh? Did you watch the demo all the way through?

no, not the one you posted the second one.  The first one works good, would be great for modeling. But has limited uses as it needs to have the spinning mirrors  to work.

[Centurus]

Right now it needs spinning mirrors to work, but there was a time television sets needed large transistor tubes to work and still only be around 9 inches.

In 10 years, who knows how this technology may develop?

[Panzergranate]

What the heck is a "Transistor Tube"??

I've been in the electronics industry for 25 years and that's a new one on me....

I think that maybe you mean "Cathode Ray Tube" (Screen) to work.

Televison is pretty simple to create and receive, using analogue technology, hence why it was in existance back in the 1930's.

However, despite the technological advancements in televison transmission and reception, most of the content available to watch is 90% crap.

[marstone]

What the heck is a "Transistor Tube"??

I've been in the electronics industry for 25 years and that's a new one on me....

I think that maybe you mean "Cathode Ray Tube" (Screen) to work.

Televison is pretty simple to create and receive, using analogue technology, hence why it was in existance back in the 1930's.

However, despite the technological advancements in televison transmission and reception, most of the content available to watch is 90% crap.

No he means transister tube.  YOu had the CRT and you also had the transister tube (the small glass tubes in the old tv's that made them hot and the insides glow)

Also tube amplifier, vacuum tube.  A few names for them.  I know them as a vacuum tube, but a search of transister tube does bring up hits on these guys also.

[Panzergranate]

Actually, the "Transistor Tibe" doesn't exist..... the picture is of a "Thermionic Valve" or, as refered to in the US, "Thermionic Valve".

Transistors and valves / tibes operated on totally different principles.

Transistors use doped Silicon layers to control electron flow, via appllied current bias, (transistor principle) where as valves / tubes use a single (or multiple) grid plates to interupt the electron flow between the heater and the anode(s).

Valve operate using (lethal) high voltages, and in some cases, emit X-Ray radaition (Klystron RF Gigawatt Valves), and transistors operate using lower, less harmfull voltages.

But the major difference is that Valves are used to amplify small currents where as Transistors are used to amplify small voltages.

Valve / Tube audio amplifiers give a cleaner sound than noisy solid state transistors..... I've fixed quite a few Valve / Tube guitar amps.

Alas, electronics engineers that still know how to dabble with Valves / Tubes are a dying breed, as the youngsters see just how many hundreds of DC volts are exposed within a accidental finger's reach and shy away.

[Sirgod]

I'm not sure Panzer, you might be right, But I remember working with my son years ago, fixing Transistor radios, and replacing alot of those old tubes.

It might be Just a play on words from the states to across the pond though.

Stephen

[marstone]

I'm not sure Panzer, you might be right, But I remember working with my son years ago, fixing Transistor radios, and replacing alot of those old tubes.

It might be Just a play on words from the states to across the pond though.

Stephen

I think it comes down to mixing of terms due to time.  When I was growing up they were all called vacuum tubes.  I know here in the states we don't always keep terms clean and accurate.

[Sirgod]

I think so also. I mean hell, how long have they been trying to have us switch to Metric time? You would think they invented English or something.

Stephen

[Bonk]

Ah, the warm glow and fuzz of a pair of overdriven 12AX7s, nothing like it.  (see: guitar riffs and solos in Steely Dan's "Reeling in the Years" - I can hear it now...)

I think the confusion here is that triode vacuum tubes perform an equivalent electronic function to a solid-state transistor. The transition from tubes, I imagine, led to the whole concept of the "solid-state" label for electronics - no tubes to replace. Then came MOSFET transistors, etc. In the seventies, audio amp manufacturers made a big deal of labelling thier products "solid-state" as a desirable feature - which you will find many audiophiles argue against. My first TV's amplifier sections were all tube driven. Before I was born when my father was supposed to be studying for his exams, my mother would take a key tube out of the TV and take it with her to work in her purse so he wouldn't couch-potato in front of the TV instead of cramming.

Now a triode tube is not to be confused with an electron multiplier tube or horn, another subject altogether...

I just love geeking out with you guys! 

[Centurus]

What the heck is a "Transistor Tube"??

I've been in the electronics industry for 25 years and that's a new one on me....

I think that maybe you mean "Cathode Ray Tube" (Screen) to work.

Televison is pretty simple to create and receive, using analogue technology, hence why it was in existance back in the 1930's.

However, despite the technological advancements in televison transmission and reception, most of the content available to watch is 90% crap.

Psst...television has been around alot longer than 25 years.   

[Panzergranate]

Thomas Edison, an American, patented what he call "A Therionic Valve".

The term "Vaccum Tube" is a slang term used by radio operators and ham radio users, the same as Integrated Circuits are refered to as "Silicon Chips", or just "Chips".

In radio operator jargon, headphones are refered to as "Cans", due to home brew efforts of the 1920's and 1930's being literally being built into tin cans.

I like old valve / tube equipment as it seems more alive, with the glowing heaters. Faunlt finding is so simple as falty valves either glow electric blue or are toatlly silvered out when the "Getter" detects the vaccuum seal is gone.

And old valve radios fire up quicker than this MS Windows Quad Core Laptop..... ain't progress great??!!