Post by gjaky on Feb 13, 2016 4:07:07 GMT -5
Hold something steady...
I have a friend who had one of his dreams come true, when he could afford a used 3chip DLP DPI TITAN HD250 projector, which is a great projector except for its 720P resolution... This guy happens to be very clever actualy, he also designs astronomical telescopes, so he knows his way around optical devices. He simply took the idea of JVC's e-shift technology and built his own DIY variant do overcome the shortcomings of his 720P projector.
I don't want to reveal his findings entirely, but I let you know that the solution is that complex as you think.
It needs a HTPC to do the signal processing (and video playback), and needs a projector which can display the source frame sequental (ie. not droping any frames) and is not 24Hz -the DPI Titan does this at 60Hz. And needs of course the proprietary vibrating mirror device -that he made, and a small electronic circuit that drives the mirror -which... ahem... I made...
With this it is possible to virtually double the resolution of ANY digital projector being able to display pictures without dropping frames. Yesterday I was at his place to check out this system in person (which is working since 2 months now without problems...) and I must say it was great! Really! No screendoor was seen even though it is only a 720P projector, yet fine details still looked crispy, fine text edges looked antialiased etc. This stuff made the 720P projector to be a virtual 1440P projector.
Again, this method can be used on any systems, so with a 1080P projector (which have good enough lens) can be upgraded to capable of display virtual 4K at a very low cost.
So far the system was tested on 3 projectors:
Qumi LED DLP -it works
Samsung A600 -it did not work because it has no synchronized output, ie. always throwing frames away
DPI TITAN 250 -it works
I have a friend who had one of his dreams come true, when he could afford a used 3chip DLP DPI TITAN HD250 projector, which is a great projector except for its 720P resolution... This guy happens to be very clever actualy, he also designs astronomical telescopes, so he knows his way around optical devices. He simply took the idea of JVC's e-shift technology and built his own DIY variant do overcome the shortcomings of his 720P projector.
I don't want to reveal his findings entirely, but I let you know that the solution is that complex as you think.
It needs a HTPC to do the signal processing (and video playback), and needs a projector which can display the source frame sequental (ie. not droping any frames) and is not 24Hz -the DPI Titan does this at 60Hz. And needs of course the proprietary vibrating mirror device -that he made, and a small electronic circuit that drives the mirror -which... ahem... I made...
With this it is possible to virtually double the resolution of ANY digital projector being able to display pictures without dropping frames. Yesterday I was at his place to check out this system in person (which is working since 2 months now without problems...) and I must say it was great! Really! No screendoor was seen even though it is only a 720P projector, yet fine details still looked crispy, fine text edges looked antialiased etc. This stuff made the 720P projector to be a virtual 1440P projector.
Again, this method can be used on any systems, so with a 1080P projector (which have good enough lens) can be upgraded to capable of display virtual 4K at a very low cost.
So far the system was tested on 3 projectors:
Qumi LED DLP -it works
Samsung A600 -it did not work because it has no synchronized output, ie. always throwing frames away
DPI TITAN 250 -it works
