Absinthe
05-02-2008, 10:01 AM
http://science.slashdot.org/article.pl?sid=08/05/02/0418258&from=rss
| View Full Version : Ok, how's this, Pinhole Telescope? Absinthe 05-02-2008, 10:01 AM http://science.slashdot.org/article.pl?sid=08/05/02/0418258&from=rss Marco B 05-02-2008, 10:48 AM Well, time to shoot my Zero Image 4x5 pinhole into space... it has a rotating disk with besides three pinholes, also three fresnel / zone plate "lenses"... See if I can capture some aliens!... :D Absinthe 05-02-2008, 11:09 AM Hmm, sounds like it may just compete :) Michel Hardy-Vallée 05-02-2008, 01:02 PM I would rather say "Zone Plate Telescope" keithwms 05-02-2008, 01:07 PM I was contemplating a pinhole for deep UV shots into the sun. Problem is that the bloody atmosphere probaby blocks the deep UV, and I don't yet have a spacecraft. walter23 05-02-2008, 01:25 PM I was contemplating a pinhole for deep UV shots into the sun. Problem is that the bloody atmosphere probaby blocks the deep UV, and I don't yet have a spacecraft. Don't worry - several stages in a high power model rocket carrying "P motors" ought to get you into orbit. http://youtube.com/watch?v=XsyeHL--hJ4&feature=related http://youtube.com/watch?v=OZ2v48CoLqY glbeas 05-03-2008, 11:51 AM Xray telescopes use zone plate technology to focus the images so this is nothing new to astronomy. The newness of it is the wavelength involved in the imaging. Absinthe 05-03-2008, 11:10 PM Cool, just seemed like something that might be of interest here |