Archived posting to the Leica Users Group, 2001/08/31
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]re: leitz/picker x-ray 90/f1 as henning noted, it was for photographing the screen of a flouroscope which does emit visible light. they used to do this sort of things a lot in the old days. i worked at matrix instruments, which dominated the market for medical "image recorders"; devices which captured images from monitors onto x-ray-sized film. it was an curious mix of technology; CTs and MRIs hooked up to computers, reconstructing images and generating image slices, going to video operator terminals. a "T" coax connector would split the video to the image recorder, and by operator control, an electro- mechanical system would move the x-ray sized (14"x17") film, into the correct location (you could get 12 images on this film) and the optical system would "photograph" the image. it was almost rube-goldbergish but very effective. we oem'ed to GE, picker, philips siemens, all the big players. i don't believe you can create an optical system for x-rays. - -rei > From: Jim Brick <jim_brick@agilent.com> > > Could someone please tell me what these lenses are good for, except the > known use... a paper weight. Being computed for the x-ray spectrum, it > couldn't possibly produce a usable image using the visible spectrum and film. > > Could it? > > Jim >