Hacking optical mice

Tim,

Well, if that's all the resolution they need, then maybe it's not so useful.

However, optical mice utilize a high intensity LED; a digital camera;
and some sort of signal processor to take snapshots and interpolate
where they are etc., etc...

A lot of nice sensing technology there! I'm curious to find a review
article or description of exactly what's going on in there...

Sometime REAL soon, they are going to be able measure both the
interference patterns AND the polarization of the returning light.

When THAT happens, then resolution will be as good as a fraction
of the LED/laser wavelength .... ca. 50nm ....

Mike

>If you open up standard a mouse you will find 2 low line count quadrature
>encoders. I just opened up a MS wheel mouse and it has 36 line encoder
>wheels. Resolution would be pretty rough.