--===============0370679058== Content-Type: multipart/alternative; boundary="part1_3ab.6451a0d.31ee6270_boundary" --part1_3ab.6451a0d.31ee6270_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit If by "coherent" you mean you hope to radiate a flat wavefront from the assembled ends of the image bundle, that's not feasible: each fiber will have a different phase length. If by "coherent" you mean that an input checkerboard object emerges as an output checkerboard image, that's easy: Coil up a zillion loops of continuous (cladded) fiber on a drum; soak one short section in epoxy; then cut the section in half and polish the ends. The fibers will be almost perfectly aligned (within one fiber) and an exact image will be translated from one end of the floppy bundle to the other. Generally one needs to use an eyepiece between the object plane (fiber ends) and the eye, unless your eye is trained to focus to 5 mm. Your earlier HMD sold to a vanished buyer seems to have a prism but no eyepiece. Remarkable. Enough to make the user just... vanish. Oliver Edwards Zyberwear, Inc. --part1_3ab.6451a0d.31ee6270_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable <HTML><FONT FACE=3Darial,helvetica><HTML><FONT COLOR=3D"#000000" FACE=3D"Gen= eva" FAMILY=3D"SANSSERIF" SIZE=3D"2">If by "coherent" you mean you hope to r= adiate a flat wavefront from the assembled ends of the image bundle, that's=20= not feasible: each fiber will have a different phase length.<BR> <BR> If by "coherent" you mean that an input checkerboard object emerges as an ou= tput checkerboard image, that's easy: Coil up a zillion loops of cont= inuous (cladded) fiber on a drum; soak one short section in epoxy; th= en cut the section in half and polish the ends. The fibers will be al= most perfectly aligned (within one fiber) and an exact image will be transla= ted from one end of the floppy bundle to the other. <BR> <BR> Generally one needs to use an eyepiece between the object plane (fiber ends)= and the eye, unless your eye is trained to focus to 5 mm. Your earli= er HMD sold to a vanished buyer seems to have a prism but no eyepiece. = Remarkable. <BR> <BR> Enough to make the user just... vanish.<BR> <BR> <BR> Oliver Edwards<BR> Zyberwear, Inc.</FONT><FONT COLOR=3D"#000000" FACE=3D"Geneva" FAMILY=3D"SANS= SERIF" SIZE=3D"2"></FONT></HTML> --part1_3ab.6451a0d.31ee6270_boundary-- --===============0370679058== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Wear-Hard mailing listhttp://www.haven.org/mailman/listinfo/wear-hard --===============0370679058==--
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