So sorry, I was indeed thinking of transmissive. j.
On Fri, May 25, 2012 at 5:18 PM, andy pugh <[email protected]> wrote: > On 25 May 2012 15:37, Jan de Kruyf <[email protected]> wrote: > > > I have made one before with just a piece of photo negative film. > > Unfortunately these sensors need a shiny/non-shiny contrast. > > I was anticipating using laserprint, but both white and black paper > are equally invisible to the sensor. > These sensors need > 60% and < 10% specular reflectivity. > I think that photo negative would be equally shiny whether black or > white (these are reflective sensors, not transmissive) > > -- > atp > If you can't fix it, you don't own it. > http://www.ifixit.com/Manifesto > > > ------------------------------------------------------------------------------ > Live Security Virtual Conference > Exclusive live event will cover all the ways today's security and > threat landscape has changed and how IT managers can respond. Discussions > will include endpoint security, mobile security and the latest in malware > threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
