Highest speed solid state scanner

[LaserLover]

This latest solid state scanner from Japan NTT group R&D is pretty cool in that a single crystal can deflect a laser beam up to 10 degrees ( plus or minus 5 deg ) at speeds up to 100 kHz . Imagine being able to deflect in X and Y axis from a single crystal.
NEOS (now Gooch & Housego) had developed laser scanners using Acousto-Optic Beam Deflectors but only in one axis at about 6 degrees.
This is pretty cool technology and will revolutionize the laser TV/ projection market.
Learn more by visiting this link " http://www.ntt-at.com/products_e/KTN_scanner/index.html "


Enjoy
Rick

[Doc]

Steve posted a thread about this recently. Very interesting though.

I don't see how it would have uniform refraction across the visible spectrum though, so how useful it would be in an rgb I don't know. Though I'm sure there are plenty of people on here that will explain.

[mixedgas]

Neos has 255 x 255 and 512x512 AO scanners, and had them for years. Even demoed them at ILDA.

Steve

[LaserLover]

Neos has 255 x 255 and 512x512 AO scanners, and had them for years. Even demoed them at ILDA.

Steve

Yes,
I'm well aware of that, but each scanner uses qty ( 2 ) AOBD crystals, 2 RF drivers that span 3 octaves, 2 digital to analog converters. The scan angle is only about 6 degrees. A monochrome scanner using the above sold for about $16,000 maybe 10 years ago. So you would require 3 of these systems for RGB and associated combining optics, etc...

Steve, did you ever get that NEOS, AOBD I sold you working as a laser deflector ?


TTYL
Rick

[LaserLover]

Steve posted a thread about this recently. Very interesting though.

I don't see how it would have uniform refraction across the visible spectrum though, so how useful it would be in an rgb I don't know. Though I'm sure there are plenty of people on here that will explain.

Hi Doc,

If you watched the crude video demonstration, you can clearly see a randomn scan and also a rotating star pattern using a red laser source. Visible spectrum operation starts at 532 nm and up so can't handle blue or violet yet, but promising !

TTYL
Rick

[sugeek]

Other than damage threshold and spot size a 2-D MEMS can already do this, see microvision's projector. Now finding a darn driver for the things is the hard part...

-Adam

[LaserLover]

Other than damage threshold and spot size a 2-D MEMS can already do this, see microvision's projector. Now finding a darn driver for the things is the hard part...

-Adam

Hi Adam,

Yep, 2D MEMS based on the technology developed by Texas Instruments over a decade ago have come a long way, but the're electro mechanical devices that have speed limitations and will eventually fail. Solid state scanners are far superior and maintenance free other than the electronics that might fail.

Did you buy a MEMS development kit to experiment with or cannibalize a dead TV ?

TTYL
Rick

[sugeek]

Hi Adam,

Yep, 2D MEMS based on the technology developed by Texas Instruments over a decade ago have come a long way, but the're electro mechanical devices that have speed limitations and will eventually fail. Solid state scanners are far superior and maintenance free other than the electronics that might fail.

Did you buy a MEMS development kit to experiment with or cannibalize a dead TV ?

TTYL
Rick

I will see later, but there is not much point until they can handle more than 100mW without warping. Well I just went over to microvisions site and they now have a development kit! Now I just need to get a job again and I might be able to afford it! I dunno the Eyemagik servos are pretty awesome too with a HUGE scan angle!

http://www.microvision.com/pico_proj...plays/pek.html

-Adam

[mixedgas]

Microvision has been at it what, 15 years, with no fielded products I'm aware of save for that one virtual screen projection thing?

Someone correct me if I'm wrong.

Steve

[mixedgas]

Steve, did you ever get that NEOS, AOBD I sold you working as a laser deflector ?

yes, needed 4 watts of drive.

Steve