Re: Acousto optic scanner

In article <[EMAIL PROTECTED]>, [EMAIL PROTECTED] (Helpful person) wrote:

>Doug,
>
>A reflective deformable mirror grating (if similar to the TI devices)
>will probably not be suitable for my application as it results in a
>"broken" wavefront.  I am using coherent illumination.  However, I
>will try and find information on the Sony device.  Thanks.
>
>The devices sold by GSI are overkill for my application and much
>larger and more expensive than the method we have engineered in house.

Well, they have used the deformable grating devices with lasers as light 
valves for laser video projectors, it's just easier to use white light split
up with a cube to get RGB. As for the GSI galovs being overkill for your
application, then the grating devices would be even worse as they are 
meant for very high resolution, progressive scan projection systems and
I would guess the grating itself in chip form will go for a grand or so with
the driver, etc. possibly even more. Sounds like maybe you should be
looking into some kind of bimorph type device as they can be made small
and cheap, but I don't know what kind of angles and/or speed you can get
from them, plus linearity may be a problem. There are also magnetoconstrictive
devices, but again, pricey, small excursion for area, but they have the 
advantage of moving a heavy load with a very small device, in fact that's
when they work best.
Good luck with your search!

Doug