Baird and the Volumetric Display - UK Vintage Radio Repair and Restoration Discussion Forum

Duke_Nukem · 11th Aug 2006, 9:51 am

Fairly interesting article on above subject has appeared in latest IET mag. If of interest to anyone then I may be able to scan it.

TTFN,
Jon

Panrock · 11th Aug 2006, 10:20 am

Yes please !

Steve

Sam · 11th Aug 2006, 10:28 am

Sounds interesting to me too!

Sam

dave walsh · 11th Aug 2006, 10:09 pm

Please put this up if you can Jon. I am presuming it's about the potential 3D/colour scanning system developed 'before' he'd even produced a picture and as described on the KINEMA Eyes of the World JLB site,
Thanks Dave. Nr the Baird house Bexhill.

Duke_Nukem · 14th Aug 2006, 7:07 pm

Slight delay as some muppet left the mag at work over the weekend

.

TTFN,
Jon

Panrock · 14th Aug 2006, 10:26 pm

Thanks Jon.

So what Baird proposed was quite a simple idea; layers of virtual rotating Nipkow disks placed in front of one other to reproduce the third dimension of 'depth'. They had to be 'virtual' because solid disks would have got in the way of the light from the other layers behind. Instead, the disks were thin wire frames with the their active light-emitting areas defined by the positions of wire electrodes.

These wire-frame discs would have had to rotate in a sealed chamber of low-pressure gas in order to emit light. Since there would have had to be one layer for each 'line' of depth; even for thirty lines the structure would have been very difficult to construct.

Not sure how a matching camera could be also made using this 'volumetric' principle either. Nor, if the stereo camera used a more traditional left/right channel approach, how the signals could be integrated to feed the volumetric receiver before the age of computers had dawned.

All in all, fascinating.

Steve

11th Aug 2006, 9:51 am	#1
Duke_Nukem Octode Join Date: Jan 2003 Location: Birmingham, West Midlands, UK. Posts: 1,268	Baird and the Volumetric Display Fairly interesting article on above subject has appeared in latest IET mag. If of interest to anyone then I may be able to scan it. TTFN, Jon

11th Aug 2006, 10:20 am	#2
Panrock Nonode Join Date: Feb 2005 Location: Worcestershire, UK. Posts: 2,533	Re: Baird and the Volumetric Display Yes please ! Steve

11th Aug 2006, 10:28 am	#3
Sam Hexode Join Date: Apr 2003 Location: Higham-on-the-Hill, Leicestershire, UK. Posts: 338	Re: Baird and the Volumetric Display Sounds interesting to me too! Sam __________________ Can he lead a Normal life, Doctor? No, he will be ... an Engineer.

11th Aug 2006, 10:09 pm	#4
dave walsh Dekatron Join Date: Jan 2006 Location: Ramsbottom (Nr Bury) Lancs or Bexhill (Nr Hastings) Sussex. Posts: 5,817	Re: Baird and the Volumetric Display Please put this up if you can Jon. I am presuming it's about the potential 3D/colour scanning system developed 'before' he'd even produced a picture and as described on the KINEMA Eyes of the World JLB site, Thanks Dave. Nr the Baird house Bexhill.

14th Aug 2006, 10:26 pm	#6
Panrock Nonode Join Date: Feb 2005 Location: Worcestershire, UK. Posts: 2,533	Re: Baird and the Volumetric Display Thanks Jon. So what Baird proposed was quite a simple idea; layers of virtual rotating Nipkow disks placed in front of one other to reproduce the third dimension of 'depth'. They had to be 'virtual' because solid disks would have got in the way of the light from the other layers behind. Instead, the disks were thin wire frames with the their active light-emitting areas defined by the positions of wire electrodes. These wire-frame discs would have had to rotate in a sealed chamber of low-pressure gas in order to emit light. Since there would have had to be one layer for each 'line' of depth; even for thirty lines the structure would have been very difficult to construct. Not sure how a matching camera could be also made using this 'volumetric' principle either. Nor, if the stereo camera used a more traditional left/right channel approach, how the signals could be integrated to feed the volumetric receiver before the age of computers had dawned. All in all, fascinating. Steve