Red/Green 3D glasses would appear to be the obvious first answer to that.
And that doesn't necessarily need different frequencies if you can use two transmitters and time slice between then and combine the two to build a three d virtual image ...
Now it may be that different frequencies penetrate differently so you might be able to do the "looking under the skin" bit ... but I have no knowledge of that.
no subject
Date: 2009-01-09 03:20 pm (UTC)And that doesn't necessarily need different frequencies if you can use two transmitters and time slice between then and combine the two to build a three d virtual image ...
Now it may be that different frequencies penetrate differently so you might be able to do the "looking under the skin" bit ... but I have no knowledge of that.