[TechAssist] Re: Bent light, still the off topic very large projection sy...
- From: MDileo0000@xxxxxxx
- To: techassist@xxxxxxxxxxxxx
- Date: Sun, 28 Mar 2004 21:06:24 EST
LCOS is a liquid crystal technology. DLP uses a tilting micro mirror array
chip and synchronized color wheel.
http://www.intel.com/design/celect/technology/lcos/
Dominic DiLeo
Atlantic TV
Freeport, Maine
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In a message dated 3/28/04 3:05:12 PM Eastern Standard Time,
support@xxxxxxxxxxxxxxxxxx writes:
> 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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