in researching an idea i came across this page below.
http://laserpointerforums.com/f48/la...tic-49068.html
if you had a lense to make the beam go wide (toslink cable) immediately after coming out of the pointer, then a second lense make the beam narrow to a focal point (last pic) would the only dangerous part to an eye be at the focal point. is there a way the beam would only be concentrated and thus dangerous at 1 point, a focal point? on a 2W laser for instance. or a 1W maybe.
http://laserpointerforums.com/f48/la...tic-49068.html
if you had a lense to make the beam go wide (toslink cable) immediately after coming out of the pointer, then a second lense make the beam narrow to a focal point (last pic) would the only dangerous part to an eye be at the focal point. is there a way the beam would only be concentrated and thus dangerous at 1 point, a focal point? on a 2W laser for instance. or a 1W maybe.