TY - JOUR
AU - Haga, Hiroshi
AB - A compact imaging system is proposed for electronic document input. In this configuration, a linear image sensor formed on a glass substrate is coupled with an optical fiber array plate. There are multiple apertures in each photodiode of this sensor. Light from a linear light emitting diode array is transmitted through the glass, the apertures and the fiber successively and illuminates a document. The scattered light comes back in the same fiber and is detected by the sensitive part of the photodiode. Experiment with a 200dpi sensor shows a good spatial resolution. With a white paper illuminated at 100(mu) W/cm 2 , a signal yield of 0.75 pC is obtained with 1msec storage time. The depth of field is 70 micrometers . A prototype hand-held scanner has been developed by housing this imaging system in a 10mm-wide pen-shaped speed of 12cm/sec.
TI - Compact imaging apparatus for a pen-shaped handheld scanner
JF - Proceedings of SPIE
DO - 10.1117/12.275172
DA - 1997-04-25
UR - https://www.deepdyve.com/lp/spie/compact-imaging-apparatus-for-a-pen-shaped-handheld-scanner-r8Ql7EX4NU
SP - 168
EP - 173
VL - 3019
IS - 1
DP - DeepDyve
ER -