Howard <howard.leigh@xxxxxxxxxxxx> writes: > "Basic Materials and Processes of Photography by Stroebel, Compton, > Current and Zakia" > > This book is expensive... > > However, revealing my true ignorance (I assume that only I don't know > of them since no-one else queried them!) I can't find anywhere a > simple reference to Kerr Cells / optical effect within the normal > practice of photography. In fact I couldn't, with a search in Google, > find a readable indication of what a Kerr Cell is... > > Any URLs easy on the eye and intellect please? The #1 hit when I google on "kerr cell" is <http://www.elec.gla.ac.uk/groups/opto/Kerr.html>, which describes their origin. The #2 hit is at thefreedictionary.com, and says Noun 1. Kerr cell - optical device consisting of a transparent cell with two electrodes between two polarizing media; passes light only if the two planes of polarization are parallel; used as a high-speed shutter or to modulate a laser beam Which don't, either of them, give much information on them *within the normal practice of photography*, I quite agree. But they define quite clearly, at different levels, what a Kerr cell is. -- David Dyer-Bennet, <mailto:dd-b@xxxxxxxx>, <http://www.dd-b.net/dd-b/> RKBA: <http://noguns-nomoney.com/> <http://www.dd-b.net/carry/> Pics: <http://dd-b.lighthunters.net/> <http://www.dd-b.net/dd-b/SnapshotAlbum/> Dragaera/Steven Brust: <http://dragaera.info/>
