Path: utzoo!utgpu!news-server.csri.toronto.edu!clyde.concordia.ca!uunet!samsung!zaphod.mps.ohio-state.edu!sol.ctr.columbia.edu!cica!iuvax!bsu-cs!cfchiesa From: cfchiesa@bsu-cs.bsu.edu (Christopher Chiesa) Newsgroups: comp.graphics Subject: Re: Hologram. Summary: Also interested in computer-generated holograms Keywords: COMPUTER GENERATED HOLOGRAM Message-ID: <11165@bsu-cs.bsu.edu> Date: 5 May 90 13:30:02 GMT References: <511@lily.warwick.ac.uk> Organization: CS Dept, Ball St U, Muncie, IN, USA Lines: 33 In article <511@lily.warwick.ac.uk>, laucy@warwick.ac.uk (TS Wong) writes: > Is there anyone have experience of direct computer generate hologram? > The idea is to use a computer to generate the interference pattern > and then use photographic technique to resize the interference > pattern. No DIRECT experience, but I did THINK of this same idea a while back and ask the folks I work with about it. My company, Light Valve Technology, makes a Digital Image Recorder capable of laying down continuous-tone exposures at up to 1016 lines/inch, and I wondered if this was sufficient to create holograms. Apparently, though, one would need much higher reso- lution to do this with our type of equipment. On the other hand, perhaps with other (most likely laser) output tech- nology you should be able to do it. I would think the calculations for determining the interference patterns would be the only hard part, IF you have equipment capable of laying down the results onto film. Do you have an output device in mind? > > Any relevant materials about this topic will be wellcome. > Thanx. I'd like to hear more about this, too, so that I can try it myself. I've got access to lots of technology including our Image Recorder AND a bunch of old laser equipment! Chris Chiesa usually posting from (and send your e-mail replies to) Chris_F_Chiesa@cup.portal.com -- UUCP: !{iuvax,pur-ee,uunet}!bsu-cs!cfchiesa cfchiesa@bsu-cs.UUCP