000002664 001__ 2664
000002664 005__ 20160701171708.0
000002664 037__ $$aASTROimport-821
000002664 100__ $$ade Cuyper, J.
000002664 245__ $$aThe D4A Digitiser
000002664 260__ $$c2005
000002664 520__ $$aThe D4A (Digital Access to Aerial- and Astro-photographic Archives) project aims to acquire the necessary know-how, hardware and software to digitise the astro-photographic collections of the Royal Observatory of Belgium and the aerial-photographic collections of the National Geographic Institute and the Royal Museum of Central Africa in collaboration with AGFA-Gevaert.  The D4A digitiser under construction consists of a granite based Aerotech ABL 3600 open frame air bearing XY positioning system, with custom build hardware to mount glass plates, film sheets and film rolls. The optical subsystem consists of a C-Cam Technologies CMOS camera mounted to a Schneider telecentric Xenoplan lens and will be illuminated by a computer controlled LED. The maximum scanning area is 350mm × 350mm with a speed of 6 plates (240mm × 240mm) per hour. A first benchmark of a prototype ABL 3600 was done and the proposed illumination system tested as detailed below. 
000002664 700__ $$a Winter, L.
000002664 773__ $$c651$$pAstronomical Data Analysis Software and Systems XIV$$v347$$y2005
000002664 85642 $$ahttp://esoads.eso.org/abs/2005ASPC..347..651D
000002664 905__ $$apublished in
000002664 980__ $$aNONREF