Laser TVs -- "the next revolution in visual technology"

[Patrick Murphy]

Sydney Morning Herald Tech Pages; heading says it all:

Laser TV: here comes the plasma killer (http://newsletters.fairfax.com.au/cgi-bin16/DM/y/hBCO10ELENZ0JhK0Me6q0EC)

It's being hailed by its developers as the next revolution in visual technology - a laser television that will make plasma screens obsolete


Regards
Chris Walsh

[reposted from ILDA's Laserist List, with permission of Chris Walsh]

[Hugo Bunk]

Sounds interesting even more if it is cheaper then a plasma like they say.
I can already see a dual function tv: a laser tv with a scanhead on top for atmospheric shows in your living room.

[Karl Dawson]

These new laser TVs will use an compact RGB module from Novalux

its the size of a matchbox and emits 465nM 532nM 620nM

now the amazing bit is the power output 465 @ 3W 532@ 3W and 620@ 750mW

the artical about this amazing hardware is here

http://optics.org/articles/news/12/8/39/1

hmmmm just spent a few thousand dollars on 1.2W of RGB ... should have spent it on women and wild nights out ..... and bought one of these TVs in 2007 and stripped it down :D


all the best ........ Karl

[John Birchman]

Also of interest:

Novalux Website:
http://www.novalux.com/

Presentation - The dawn of lasers in projection:
(from the 2006 Projection Summit in June)
http://www.novalux.com/assets/downloads/Lasers_in_Projection.pdf

John

[Karl Dawson]

Wow ..... on thier website they say the total light scource will cost less than a standard DLP projector lamp so i guess they are saying it will cost less than $400 ....

so what about the scan engine .... 60,000 pps for $25 :D perhaps

all the best ...... Karl

[Lasergreg]

One aspect of the on-going development of laser sources for laser TV is an optical aspect called Entendue. Basically, a DLP chip illuminated by lasers does not require the same beam characteristics as we might desire for laser display. So, instead of getting cheap high power RGB lasers via this channel, the lasers may be essentially useless to us.

Another way of looking at this is a factor called mm-mr (millimeter-milliradian). Most of the gas lasers were around 2 mm-mr, the new DPSS/Diode lasers may be as high as 3 mm-mr, but some of the RGB lasers developed as video lightsources are much higher. You can make the beam smaller, but the divergence will increase. Or you can make the divergence smaller, but the beam will get larger.

So, yes, we may see watts of light available for low dollars, but this may not be particularly useful to for our application.

[Tim Walsh]

So, yes, we may see watts of light available for low dollars, but this may not be particularly useful to for our application.

But we all feel a glimmer of hope in news like this, don't we?:)

Tim

[Peter Mayer]

There are so many technolgies running amazing:

I talked to Fraunhofer Institut at the Electronica 2006 fair in Munich,
and they explained me an interesting project based on the silicon
technology.
- They have developed a single chip (size DIP-14) which contains
a mirror of dia. 1mm which is driven by a single MEMS. The mirror
can be moved in X AND Y in this chip with resonant high frequency
of probably a few MHz.
- They create a TV projection with this chip and a RGB highspeed
modulated diode layser system.
- The interesting is, that they are not using raster scan, they drive
the mirror in X and Y with two different sinus frequencies creating
a classical lissayou pattern, with refresh rate above 50Hz, this is
as physical based the frequency difference betwenn the X and the
Y sinus modulation multiplied (I believe) with 1/2 of the resolution.
- A fast DSP knows the position of the mirror in realtime and modulates
the RGB lasers accordingly to the video pixel data input which is stored
in frame first in last out buffers and then processed via wait state algorithms.
Really heavy task !
- They made a prototype for cars and going further to airplanes, where
they projects flight control datas and graphics onto the front window.
- The price for such a system depends on the success of this technology
in ultra high mass applications.

Peter Mayer