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WanMan
Joined: 19 Mar 2006
Posts: 10270
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| Posted: Sun Mar 23, 2008 4:38 pm Post subject: Fantasy Projector Question |
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Ok, within reasonable limits and abilities, what would the the Top Ten features in a CRT projector that you would like to have met technologically. Let's keep this within reason and not say it comes with a free naked milk maiden to operate your remote. 
I'm guessing some of the true Geeks out there will offer up something that was already found to benefit in the form of high-dollar modifications.
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Tom.W
Joined: 09 Mar 2006
Posts: 6635
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| Posted: Sun Mar 23, 2008 4:51 pm Post subject: Re: Fantasy Projector Question |
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| WanMan wrote: | Ok, within reasonable limits and abilities, what would the the Top Ten features in a CRT projector that you would like to have met technologically. Let's keep this within reason and not say it comes with a free naked milk maiden to operate your remote.
I'm guessing some of the true Geeks out there will offer up something that was already found to benefit in the form of high-dollar modifications. |
Why not ? Cliffy would be disapointed... 
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deronmoped
Joined: 03 Nov 2006
Posts: 1154
Location: San Diego
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| Posted: Sun Mar 23, 2008 5:20 pm Post subject: |
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I would just like to see today's technology applied to a CRT. I could not really think of any one big upgrade that is needed that would make the image any better. With todays technology applied, I would expect to see incremental improvements in a lot of areas.
1) Digital video chain.
2) Higher bandwidth.
3) Better phosphors.
4) Better lenses.
You would end up with a G90 on steroids 8)
Deron.
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tse
Joined: 03 May 2006
Posts: 1014
Location: Sweatbucket, Fl.
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| Posted: Sun Mar 23, 2008 5:38 pm Post subject: |
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There is one thing that would keep CRT projectors viable. Increase the light output by 10X and there would be new life. Then the light losses that would happen with internal convergence and one (small/cheap) lens output wouldn't matter so much.
Ooops! This is supposed to be doable. Sorry, 'bout that.
Scott
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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Zebu Fellenz
Joined: 21 Dec 2006
Posts: 2567
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| Posted: Sun Mar 23, 2008 8:40 pm Post subject: |
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I would like either rock solid convergence throughout a wide range of temperatures or a computer controlled tracking system that watch the screen while your video is playing and constantly adjust the convergence to keep the image optimum from a cold start.
Erik
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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| Posted: Sun Mar 23, 2008 9:06 pm Post subject: |
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| Zebu Fellenz wrote: | I would like either rock solid convergence throughout a wide range of temperatures or a computer controlled tracking system that watch the screen while your video is playing and constantly adjust the convergence to keep the image optimum from a cold start.
Erik |
That would be great ! I'll add to it, and an automated electronic focus for both mechanical(motorized lenses) and the coils.
Athanasios
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voodoo7869
Joined: 19 Oct 2007
Posts: 193
Location: Chicago, IL USA
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| Posted: Mon Mar 24, 2008 5:49 am Post subject: |
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the new crt tech is plasma tubes they were designed for front projection but never really took off. it uses nano tubes of phos and each tube would be a pixel crap loads on the face glass with a high precision electron beam. very high light output i think it was double the light of a standard tube I remember reading about it on avs a while back but never took off. Cost to much to produce. maybe someone else remembers better than me.
sounded really cool though.
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Person99
Joined: 09 Mar 2006
Posts: 4899
Location: Flower Mound, TX
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| Posted: Mon Mar 24, 2008 11:40 am Post subject: |
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| Zebu Fellenz wrote: | I would like either rock solid convergence throughout a wide range of temperatures or a computer controlled tracking system that watch the screen while your video is playing and constantly adjust the convergence to keep the image optimum from a cold start.
Erik |
Sorry, this has already been done! My projector's convergence is rock solid from the time it is turned on until turned off. That is not the case with most PJs, so I'm lucky. Also, mine does had the auto convergence feature that will keep redoing convergence from the IRIS camera while content is being shown. All you need to get these features is a different projector.
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Person99
Joined: 09 Mar 2006
Posts: 4899
Location: Flower Mound, TX
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| Posted: Mon Mar 24, 2008 11:45 am Post subject: |
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| tse wrote: | There is one thing that would keep CRT projectors viable. Increase the light output by 10X and there would be new life. Then the light losses that would happen with internal convergence and one (small/cheap) lens output wouldn't matter so much.
Ooops! This is supposed to be doable. Sorry, 'bout that.
Scott |
I'm with this 100%. And I tell you, brightness is addictive! I've been checking out lots of different PJs and just like louder music sounds better, brighter pictures look better.
The thing I would like to see is IR operated anamorphic lenses integrated as part of the "normal" lenses. Ones with pass through, 1.33x, and 2.0x settings.
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Dave
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kal
Forum Administrator
Joined: 06 Mar 2006
Posts: 18114
Location: Ottawa, Canada
TV/Projector: JVC DLA-NZ7
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Person99
Joined: 09 Mar 2006
Posts: 4899
Location: Flower Mound, TX
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| Posted: Mon Mar 24, 2008 3:32 pm Post subject: |
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| kal wrote: | | Person99 wrote: | | Also, mine does had the auto convergence feature that will keep redoing convergence from the IRIS camera while content is being shown. |
Really?? I never knew that IRIS3 would do this.
Have you ever tried it? I've never even tried the IRIS setup on mine ...
Kal |
Yep, IRIS3 does this!
It is in the "ProVerge" manual that came with my Zenith (basically and IRIS3 manual with "Barco" changed to "Zenith" and "IRIS3" changed to "ProVerge").
I have never done it because I don't use IRIS to do the set up. And frankly, I don't have to ever TOUCH the set up. This things has been on the ceiling for 15 months and it has NO drift. It is bang on when I turn it on and bang on when I turn it off. Convergence is the same a year after I set it! So, I've never played around with the IRIS stuff.
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Dave
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Zebu Fellenz
Joined: 21 Dec 2006
Posts: 2567
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| Posted: Mon Mar 24, 2008 6:37 pm Post subject: |
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Dave,
I meant in a wide range of temperatures, the temperature in my theater will vary anywhere from about 30-90 degree's depending on the season and how much I want to pay to keep the heat on.
Show me your 1200 being rock solid at 30 degree's and then at 90 degrees without changing setup
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kal
Forum Administrator
Joined: 06 Mar 2006
Posts: 18114
Location: Ottawa, Canada
TV/Projector: JVC DLA-NZ7
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| Posted: Mon Mar 24, 2008 6:41 pm Post subject: |
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| Person99 wrote: | | I have never done it because I don't use IRIS to do the set up. And frankly, I don't have to ever TOUCH the set up. This things has been on the ceiling for 15 months and it has NO drift. It is bang on when I turn it on and bang on when I turn it off. Convergence is the same a year after I set it! So, I've never played around with the IRIS stuff. |
Me either for the exact same reasons. When I first got it I wanted to try it out but the instructions didn't seem that straight forward so I didn't want to bother learning how to use IRIS since I knew that after I set the thing up, I'd basically never have to touch it again.
I do find there's a very subtle drift with the change in seasons so I do a quick 2 minute static convergence tweak twice a year. You're in Texas so it's likely always the same there. My HT is always to same too (always around 72F and 40-50% relative humidity) so not sure why I have to, but I've heard it's somewhat normal.
| Zebu Fellenz wrote: | | Show me your 1200 being rock solid at 30 degree's and then at 90 degrees without changing setup |
My Zenith 1200 is also rock solid from turn-on to turn off. A lot of this has to do with the age of the unit: It's very new (built in 2001).
My BG800 from 1991 with 26K hours wasn't stable when I first got it. It took a good hour to stabilize after which I'd quickly adjust the static convergence every time I watched the damned thing. The problem was that every time I turned it on and let it warm up for an hour, the convergence always ended up slightly different. I changed about 100 questionable caps in the unit and after that it was always rock solid after a 20 min warmup.
30F - 90F? Well that's just plain silly. You actually watch movies at sub-freezing temperatures and in sweltering 90F heat? How can that possibly be comfortable?
Kal
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Person99
Joined: 09 Mar 2006
Posts: 4899
Location: Flower Mound, TX
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| Posted: Mon Mar 24, 2008 6:54 pm Post subject: |
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| Zebu Fellenz wrote: | Dave,
I meant in a wide range of temperatures, the temperature in my theater will vary anywhere from about 30-90 degree's depending on the season and how much I want to pay to keep the heat on.
Show me your 1200 being rock solid at 30 degree's and then at 90 degrees without changing setup |
Over the last year the temp in the theater has varied from 58 degrees to 85 degrees. Convergence has been rock solid. Not 30, but I'm not sure why a functioning theater would ever need to get below freezing! 
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Dave
A train station is where the train stops. A bus station is where the bus stops. On my desk, I have a work station....
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Spanky Ham
Joined: 22 Mar 2006
Posts: 5643
Location: Comedy Central
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| Posted: Mon Mar 24, 2008 7:04 pm Post subject: |
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| Zebu Fellenz wrote: | Dave,
I meant in a wide range of temperatures, the temperature in my theater will vary anywhere from about 30-90 degree's depending on the season and how much I want to pay to keep the heat on.
Show me your 1200 being rock solid at 30 degree's and then at 90 degrees without changing setup |
I'm sorry, aren't you like 15? Why would you have to pay for the heat?
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