[TechAssist] Re: Bent light, still the off topic very large projection system th
- From: "Intrepid Video Support" <support@xxxxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sun, 28 Mar 2004 14:44:18 -0500
Peter...called "Digital Light Projector(DLP)"
Philips version is LCOS...not sure of the exact difference, but I believe the
same technology.
DLP was invented and patented by Texas Instruments a few years back.
Jeff Dougherty
Intrepid Video TV/VCR
263 S Front St
Steelton PA 17113
fax...717-564-4952
www.intrepid-video.com www.tech-repair.net
----- Original Message -----
From: "Peter oliver" <oliver_peter1@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Sunday, March 28, 2004 9:54 AM
Subject: [TechAssist] Re: Bent light, still the off topic very large projection
system th
I think what Russ is refering to would come under the Freznel effect, he
noticed the effect arround objects and used the idea to make his famous
lens.
Gravity can bend light but I don't think that there is a suficent
differental, at least to be easily percived, to cause the effect here since
we are in a gravity well already.
As for the large screens much of what Iv'e seen on billboards etc appears
to be LED based.
Did see an add chanel surfing on one of the home shopping chanels for an
RCA big screen TV what the sales people were toughting was a white lamp
(from mercury vapor) with a spinning disk and one of the 1.3 million element
micro ossilating mirror arrays. I supose that the system colud be adapted
provided a suficent light source, Laser I supose could work but since it is
mono chromatic you would need at least R,B,B but wit a spinning color disk a
sufficently bright white source probabbly would work if the other elements
were cooled enough.
Peter Oliver
Tucson Radio TV
From: "Hoyt's TV" <hoytstv@xxxxxxxxxxx>
Reply-To: techassist@xxxxxxxxxxxxx
To: <techassist@xxxxxxxxxxxxx>
Subject: [TechAssist] Bent light
Date: Sun, 28 Mar 2004 08:58:05 -0500
Something I found interesting but never tried to find out why.
When I did a lot of flying in a small plane, I noticed that our shadow on
the ground had a bright outline around it when we were up a ways. I don't
remember the exact altitude. The first time I noticed it was over Florida,
coming back to Augusta Ga. The highest thing in Fla at the time was a TV or
radio tower at about 1500 feet so we didn't feel the need to get much over
3000, but we did use whatever altitude allowed us to take advantage of
prevailing winds. So we might have been 6 or 8 thousand. Obviously
something was going on there with the light passing by us.
After that I used to look for it elsewhere when I thought of it and it was
like that whenever I could find our shadow.
Russ Hoyt
Hoyt's TV
Exeter, NH
----- Original Message -----
From: "Doug Keller" <dek@xxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Sunday, March 28, 2004 8:28 AM
Subject: [TechAssist] Re: Large tv screen in Vegas
> Gravity will influence the path of photons.
>
> Doug Keller
> Wis-Kel Electronics
> 101 Freeland Ave.
> Terra Alta, WV
> USA 26764
> dek@xxxxxxxxxxxxxx
> dek@xxxxxxxxxxxxxxx
> http://www.tech-assist.org
> "Learn from the mistakes of others, because you
> won't live long enough to make them all yourself"
>
>
>
>
>
> Tel-Tek wrote:
>
> >I guess. Light beam won't deflect like an Electron beam, but I'm sure
> >someone wiser then you and I are working on it. Would be ideal just
deflect
> >a laser like the do an Electron Beam, then your screen size could be
> >unlimited.
> >Oh well...back to the drawing board.;-)
> >
> >-Ed-
> >Tel-Tek Electronics
> >Ontario-Canada
> >teltek3@xxxxxxxxxxxx
> >AOL Instant Messenger-Teltek813
> >----- Original Message -----
> >From: "Damon" <damon101@xxxxxxxxxxxxxx>
> >To: <techassist@xxxxxxxxxxxxx>
> >Sent: Saturday, March 27, 2004 5:03 PM
> >Subject: [TechAssist] Re: Large tv screen in Vegas
> >
> >
> >
> >
> >>I don't know if you can make a mirror light enough to scan at 32khz, of
> >>course you might be able to use DLP technology if you can modulate the
> >>
> >>
> >angle
> >
> >
> >>of the mirror with a sawtooth.
> >>
> >>Damon Brunger
> >>Telrad Electronic Services
> >>Ft Wayne, IN 46815
> >>----- Original Message -----
> >>From: "Ed Gaidies" <teltek3@xxxxxxxxxxxx>
> >>To: <techassist@xxxxxxxxxxxxx>
> >>Sent: Saturday, March 27, 2004 11:07 AM
> >>Subject: [TechAssist] Re: Large tv screen in Vegas
> >>
> >>
> >>| There's an idea. Make projectors from R-G-B lasers to project on a
> >>
> >>
> >screen.
> >
> >
> >>| Maybe we already have that..Do we?;-)
> >>|
> >>|
> >>| -Ed-
> >>|
> >>|
> >>|
> >>| Tel-Tek Electronics
> >>| Ontario-Canada
> >>|
> >>| teltek3@xxxxxxxxxxxx
> >>| ----- Original Message -----
> >>| From: "Shoreline Electronics" <jstielau@xxxxxxxx>
> >>| To: <techassist@xxxxxxxxxxxxx>
> >>| Sent: Saturday, March 27, 2004 10:34 AM
> >>| Subject: [TechAssist] Re: Large tv screen in Vegas
> >>|
> >>|
> >>| > Just came back from there myself.....if your referring to the one
that
> >>is
> >>| a
> >>| > large canopy used when they do the music and video shows at night ,
it
> >>| > appeared to me of a laser/projection type setup ...no?
> >>| >
> >>| > ==========================
> >>| > Jeff Stielau
> >>| > Shoreline Electronics Repair
> >>| > 344 East Main Street
> >>| > Clinton,CT 06413
> >>| > 860-399-1861
> >>| > 860-664-3535 (fax)
> >>| > jstielau@xxxxxxxx
> >>| > ========================
> >>| > "If you push something hard enough it will fall over."
> >>| > Fudd's First Law of Opposition - Sir Sidney Fudd
> >>| >
> >>| >
> >>| > ----- Original Message -----
> >>| > From: "John @ Myers TV" <myers_tv@xxxxxxxxxxxxx>
> >>| > To: <techassist@xxxxxxxxxxxxx>
> >>| > Sent: Friday, March 26, 2004 10:13 AM
> >>| > Subject: [TechAssist] Large tv screen in Vegas
> >>| >
> >>| >
> >>| > > Hi everyone.
> >>| > > We just returned from Vegas. I was amazed by the large video
screens
> >>| > there, but one in particular was really amazing. It is a city block
> >>
> >>
> >long
> >
> >
> >>| > screen built into the roof over Fremont street. It appears to use 4
> >>color
> >>| > pixels (red, green, blue, white), to produce the video images.
> >>| > > It was made by LG. What I wouldn't give for a tour of that
system.
> >>| > >
> >>| > > John Myers
> >>| > > Myers TV Service Since 1984
> >>| > > Alliance, OH
> >>| > > ph 330-821-6545
> >>| > >
> >>| >
> >>|
> >>
>
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