Eric Lange
Well-known member
Like wise, Keith, I really enjoyed reading your post, quite an education.
The idea that you can have such narrow bandwidth filters that they are completely transparent is super cool. Initially you think Dolby 3d .. yuck (weird colors), but what you describe with these highly tuned systems definitely sounds worth a go. [A few years ago I got to see the inventor of DLP systems give a presentation at ‘Stereoscopic displays and applications XIX”. Honestly if anyone came into your board room and said, “I have this great new idea, for digital projection systems and TVs that involves making these completely new semiconductors that user realy realy realy tiny little mirrors that we wiggle... at different rates…to make all the colors”; you would say ‘Dude,… what the hell have you been smoking…” . It does seem remarkable to me how some of the most improbable seeming technologies manage to win through. So it always pays to keep an open mind.
So here’s a stupid/ignorant question, if the lasers are essentially coherent and structured light sources, at what point does the laser light become more like very well collimated “unstructured light”? How come you don’t get weird interference/fringing effects at the surface of the screen or earlier on in the optical path?
I am a big fan of linear polarization over circular, seems to give much crisper images (especially on a large screen) with less cross talk; I don’t really think the head tilting thing is such an issue.
For home 3d cinema use would it possible to have a retro-reflective lenticular screen (possibly on a slight curve) that enables glasses free viewing from projectors where the “sweet spot” is the size of several meters (i.e. a sofa and some chairs are all inside the 3d volume of the “sweet spot’)?
Ta.
Eric
The idea that you can have such narrow bandwidth filters that they are completely transparent is super cool. Initially you think Dolby 3d .. yuck (weird colors), but what you describe with these highly tuned systems definitely sounds worth a go. [A few years ago I got to see the inventor of DLP systems give a presentation at ‘Stereoscopic displays and applications XIX”. Honestly if anyone came into your board room and said, “I have this great new idea, for digital projection systems and TVs that involves making these completely new semiconductors that user realy realy realy tiny little mirrors that we wiggle... at different rates…to make all the colors”; you would say ‘Dude,… what the hell have you been smoking…” . It does seem remarkable to me how some of the most improbable seeming technologies manage to win through. So it always pays to keep an open mind.
So here’s a stupid/ignorant question, if the lasers are essentially coherent and structured light sources, at what point does the laser light become more like very well collimated “unstructured light”? How come you don’t get weird interference/fringing effects at the surface of the screen or earlier on in the optical path?
I am a big fan of linear polarization over circular, seems to give much crisper images (especially on a large screen) with less cross talk; I don’t really think the head tilting thing is such an issue.
For home 3d cinema use would it possible to have a retro-reflective lenticular screen (possibly on a slight curve) that enables glasses free viewing from projectors where the “sweet spot” is the size of several meters (i.e. a sofa and some chairs are all inside the 3d volume of the “sweet spot’)?
Ta.
Eric