Ketch Rossi
Well-known member
- Joined
- Jan 10, 2007
- Messages
- 15,041
- Reaction score
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- Points
- 38
- Location
- Sardinia, Italy
- Website
- www.afroditefilms.com
Wish I could afford it
Ketch, you lucky dog
A very Hard Working Lucky Dog that is, he he.
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Wish I could afford it
Ketch, you lucky dog
I think it is safe to assume that there are lots of developments in 3D coming... active glasses are not one of the better ideas.
The fact that 3 big companies get together to try to force a bad idea just doesn't sit right with me... so we won't let that happen.
Jim
Are we going to hear some 3D news from Red in the next month?
No glasses would be amazing, but I have yet to see a "no glasses" technology that doesn't suck.
Passive polarization is where it's at right now, but interlaced or checkerboard style polarization masks on HDTV displays sucks too. In some ways just as bad as active glasses. There are electronic switching polarization films/filters that can solve this -- hey, Kirk Melby just posted a link to one.. I honestly can't believe that the big HDTV makers did not jump on the passively-polarized DLP or the switching layer on LCD and plasma displays. Should've gone with passive glasses right from the start. On a DLP or LCOS system with a color wheel, adding polarization is stupid simple (relatively, anyway). It literally becomes another independent wheel component to swap polarizing filtration for alternating frames. ...Oh, wait, Samsung and Mitsubishi own patents on forms of this tech and concept. Nice to see they made good use of it.
Now, if I had to speculate about what RED is up to, I think we're getting an off the cuff and somewhat veiled update on the progress of the "4K LASER Projector" that RED is working on. You see, it makes perfect sense for them to be using LASERS... No spinning color wheels needed, only RGB (or multi-component) LASER sources and they can be used with DMD or LCOS, or even other means by which to build an image. In most situations, LASER light is polarized and the type/ order or direction of polarization can be controlled through states of emission within a LASER device. A rapid phase changing or state switching LASER device can alter polarization as needed without altering any visible (to the human eye) differences in light properties or output levels. No wave plates or switching filters needed in front of a LASER to induce the desired polarization. So no light loss, no interlaced or "checkerboard" polarization masks, no active shutter glasses that make me want to have an epileptic fit...
Of course, I've got my speculation hat pulled on tight... Whether or not I'm anywhere close to what RED is really working on here, I do know that Jim is absolutely right. Those other guys are half-asleep at the wheel and they're driving slowly on the wrong side of the highway.
There is a no excuse passive system... coming soon.
Jim
Eric,
I went into a shop to check out the LG displays. It is interesting that while they claim extra brightness, the Samsung monitor was extra bright to begin with, then you halve resolution. LG, shouldn't allow Samsung etc to dictate the market place to them they should give them heaps. The truth is, a full resolution high brightness sequential image passive display maybe far more doable and cheap than expected. Hopefully the technical people behind the Red comments have realised this, but we live in hope over the decades of genius with money compared to the dysfunctional business norm, genius without money, non genius with.
He, he,..Rather than haggling over higher level “crude” formats, it would make more sense to agree on the implementation of a lower level more open format that developers can actually do something with; for example the binary version of XML.
I am 41, recently I spent a couple of weeks with undergrads and post docs etc. in a very remote location in NM digging Triassic fossils. In spite of this remote location, everybody had some kind of computational media linked device, all I-phones, the occasional I pad etc. Great stuff. Even at the dinner table you are having a conversation and they are looking up REAL TIME what it is you are talking about..their thumbs in a constant frenetic blur. The Thing that’s interesting is the ‘TV” as such takes people AWAY from this rich source of data access. At some point the “big companies” are going to have to wake up to that, and provide an open platform that software developers and media content developers can really run with. As it is 2d presentation of imagery is now starting to be processed as a subset of 3d rendering, a much deeper digital capability is being brought to bear for the simple presentation of imagery.
In this sense the hardware manufacturer’s do have a responsibility to show the way (for the future), and I’m sure that they allready recognize that if they continue with this same 1950’s type model that they are going to completely lose their audience. I.e. hardly anyone will watch TV whether its 2d or 3d or 4k (apart from sports events) and the occasional movie.
I think the stuff that Jeff is going on about sounds freaking awesome, but really expensive...(a powerful blue laser alone costs an arm and a leg…). Can’t wait to see this stuff
I would be quite confident in predicting that that ain't gonna happen, at least with any current technology I know about. None of the people predicting this seem up to the task of explaining exactly how this would work in any practical sense. Sure, it you want to watch movies with your head immobilized in a 19th century photographer's clamp, well go for it, otherwise....No glasses would be amazing, but I have yet to see a "no glasses" technology that doesn't suck.
Now, if I had to speculate about what RED is up to, I think we're getting an off the cuff and somewhat veiled update on the progress of the "4K LASER Projector" that RED is working on. You see, it makes perfect sense for them to be using LASERS... No spinning color wheels needed, only RGB (or multi-component) LASER sources and they can be used with DMD or LCOS, or even other means by which to build an image. In most situations, LASER light is polarized and the type/ order or direction of polarization can be controlled through states of emission within a LASER device. A rapid phase changing or state switching LASER device can alter polarization as needed without altering any visible (to the human eye) differences in light properties or output levels. No wave plates or switching filters needed in front of a LASER to induce the desired polarization. So no light loss, no interlaced or "checkerboard" polarization masks, no active shutter glasses that make me want to have an epileptic fit...
Of course, I've got my speculation hat pulled on tight... Whether or not I'm anywhere close to what RED is really working on here, I do know that Jim is absolutely right. Those other guys are half-asleep at the wheel and they're driving slowly on the wrong side of the highway.
As you say, because the polarization of the lasers can be switched electrically, there is no need for a rotating polarizer filter wheel in front of the lens. This actually has a two big advantages:
In the alternative "Super Anaglyph" system used by Dolby, Panavision and others, the rotating filter wheel is designed to alternately pass two slightly different wavelengths each of red, green and blue light. When the left image is being shown, the projected image passes through a filter section with the same filter spectrum as the lens covering the left eye, then when the right image is being shown the light passes through the other filter section, which matches the filter spectrum as the lens covering the right eye.
Kodak's new laser system uses 3 banks of 12 = 36 semiconductor lasers, each with a 3 Watt output. Current green and blue semiconductor lasers aren't up to this task, so the Blue and Green wavelengths are produced by infrared laser beams passed through harmonic generator crystals which halve the wavelengths, giving visible blue and green, while the Red component is produced directly by 12 x red-emitting lasers.
For my money, I think the Super Anaglyph system has the most potential, since it doesn’t require a metalized screen like the polarizing version. 3D images could actually be projected onto any surface, which opens up other entertainment and advertising possibilities. Being able to have your regular everyday eyeglasses made up with the laser type filters so you could watch movies in greater comfort would also have to be a potential winner.
I think it is safe to assume that there are lots of developments in 3D coming... active glasses are not one of the better ideas.
The fact that 3 big companies get together to try to force a bad idea just doesn't sit right with me... so we won't let that happen.
Jim