| Author | Message | ||
     M.H. Rating: N/A |
In 2003, Christoph Bungert started on this WWW a section: Pleading for a low-cost 1-chip-DLP active-stereoscopic-3D projector. I was not able to fully participate in this disusion - I was in this time already under NDA becouse I was partialy participating just on such device development (putting together required technical requests) and later on testing. I have finally got permission from President of Lightspeed Design (my 3D video software development partner) to speak about this topic. During a few week there will come on the market a small one chip based DLP projector able to fully synchronize to 100 Hz and 120 Hz page flipping output. Device will work with all standard shutteglasses. The projector is the result of a joint project between Lightspeed and a major video projector manufacturer. I was able during last year to test several prototypes of this device. I can confirm that the version prepared for the market works perfect. This version was already shown to public during National Manufacturing Week in Chicago. I will give you more details during next week. | ||
| clyde Rating: N/A |
Thanks M.H. Keenly awaiting the news.. Fill us in when you can on the basic of operations for now! i.e. does it use a built-in Zscreen polarization plate? or external or how? Regards Clyde | ||
| M.H. Rating: N/A |
The device works with shuterglasses - so it does not use Z-screen for polarizing the output light. It is used for active projection for small auditoria. In principle the device could be potentialy combined with Z-screen to obtain circular polarized passive projection, but the light lose will be to much hi for practical usage ... | ||
| Christoph Bungert (Admin) Rating: N/A |
That's great news! However what I'm really hoping for is Texas Instruments implementing a 3D-mode into the DLP-electronics and firmware design. DLP-chips are insanely fast and TI is doing all kinds of tricks on them. Implementing a 100-160Hz active-stereo3d-mode would be snap for TI. This mode wouldn't make producing the components more expensive. 3D with DLP could become a standard feature hidden in some sub-menu on virtually every DLP device. The only thing we may need is a 50 cent DIN-3 connector on the projector for the sync. Too bad these 50 cents will break our neck - as they did on VGA-boards already. (Usually the sync is taken from the VGA-board, but digital devices, such as DLP have a buffer which cause a time-gap, so the sync for the shutterglasses, should be taken from the projector. I think Barco does this on their 96Hz active-stereo DLP.) Christoph | ||
| Peter Wimmer Rating: N/A |
Hi Michal, Will this projector be affordable for consumers? Peter | ||
| M.H. Rating: N/A |
Christoph : The projector produce precisely 1 frame delay. So glasses synced to VGA out are in perfect synchronization - but with reversed eye. It is necceasry to switch the eye in the drivers or glasses HW controler to be in sync. Christie Mirage works in similar way - they have precisaly one frame delay as well. It should be noticed that for DLP the glasses sync must be aprox 300% more precise than from CRT - or you will se color distorsion. I had seen it worsk O.k. from this point of view. Accrding the 50 cen for the DIN-3. I had heard during the device development, it is not so simple calculation: - you must modifie the producting machines to put the connector there (machine assembing chasi, the projector will use standard chasi) - you must modify the machine for the circut board layout + several other things ... The connector price is neglible, modifing the production factory setup is the problem. If you want to make the device price acceptable - it was impossible. Peter: Price is not under my control. But it is sure the device will be much more price acceptable than existing 3 chip solutions. | ||
| chris ward Rating: N/A |
Hi, this is Chris from Lightspeed. I thought I would answer a couple of the questions posed here. The resolution of the new projector is 800x600. This is the highest resolution possible in 120 3D given current technology. The initial list price of the projector will be in the $3,500 US range. This price is in the upper range of typical portable video solutions targeted at business and consumer use. Chris | ||
| Christoph Bungert (Admin) Rating: N/A |
Michal and Chris thank you for the information. ###This is the highest resolution possible in 120 3D given current technology.### This is something I don't understand. See what I wrote about 'DLP-speed' back in 2003: http://www.stereo3d.com/dlppleading.htm There are 6-speed color wheels around and maybe even faster ones - in HDTV consumer projectors. The DLP's and their memory-interfaces are getting faster and faster. More color segments, more rotations per second, higher color depth(!?). TI is preparing a consumer (!) 1920x1080 device and the insanely complex SCR technology. So, my understanding is: 1) DLP is insanely fast and still gets faster 2) TI can play all kinds of tricks on them If a given device isn't fast enough couldn't TI sacrifice some grey-scales, color-depth or wheel-speed to get a higher frame rate? I'd suspect the reason behind this is they don't want to do any major changes to the DLP-driver-electronics and memory interface in favor of stereo3d, because it's a small market. So isn't it more of an economical problem? Anyway a 120Hz SVGA is already a great achievement and the price sounds really reasonable. The Barco only does 96Hz in stereo and costs a fortune. Thank you Christoph | ||
| Chris Ward Rating: N/A |
>>So, my understanding is: >>1) DLP is insanely fast and still gets faster >>2) TI can play all kinds of tricks on them Yes, DLP is insanely fast, and has lots of future head-room. One of the issues was bottlenecks within the core architecture of inexpensive electronic systems. Chris Lightspeed | ||
| Christoph Bungert (Admin) Rating: N/A |
###The Barco only does 96Hz in stereo and costs a fortune.### I had this in the back of my mind. Don't know if I confused something or if Barco changed this. Anyway the current Barco Galaxy family of projectors delivers 110 Hz. Christoph |
