> > I think the trick the Resolute encoder uses is this: the image is captured in > a perhaps sub microsecond flash of the LED, and then the "image" can be > shifted out of the sensor at a leisurely rate. The specifications sort of > suggests this (very fast capture (ns) time, but only multi KHz maximum update > rate) > > Peter Wallace > Mesa Electronics >
They may in fact use a laser for illumination as AFAIK you can get higher peak power with a pulsed laser than a LED. These are in the $30 region for 75W peak 40 ns pulse width, not much vibration or motion blur in 40 ns :-) http://www.osram-os.com/osram_os/en/products/product-catalog/laser-diodes/high-power-laser-diodes/pulsed-laser-diodes/hybrid-pulsed-laser-diodes/index.jsp ( thank you Harold Edgerton ) > > ------------------------------------------------------------------------------ > _______________________________________________ > Emc-developers mailing list > Emc-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-developers > Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your (")_(") signature to help him gain world domination. ------------------------------------------------------------------------------ _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
