公开(公告)号：EP0171925A3

公开(公告)日：1986-07-02

申请号：EP85304963

申请日：1985-07-11

申请人： Rockwell III, Marshal A,

发明人： Rockwell III, Marshal A,

IPC分类号： G06K07/10 ,  G06K09/24

CPC分类号： G06K7/10881 ,  G06K2207/1018

摘要： A hand held scanning device (20) has a sensing unit (26) consisting of a first linear array (30) of light emitting diodes (LEDs) (32) spaced from and parallel to a second linear array (34) of photosensitive element integrated circuits (36). The LEDs (32) and integrated circuits (36) are mounted on a common substrate (60) facing an opening in bottom surface (24) of housing (22). A roller (28) is parallel to the sensing unit (261. A wheel (82) containing light and dark areas is positioned to be rotated by the roller (28). The roller (28) assures that the scanning device (20) travels in a straight line path when it is moved along a sheet of paper. The light and dark areas of the wheel (82) are sensed to define line scans of the device (20) and uniform light exposure by the LEDs (32) on the basis of distance travelled along the sheet of paper. A tight collimating fiber optic plate (67) is positioned over each integrated circuit (36).

公开(公告)号：EP0171925A2

公开(公告)日：1986-02-19

申请号：EP85304963.3

申请日：1985-07-11

申请人： Rockwell III, Marshal A,

发明人： Rockwell III, Marshal A,

IPC分类号： G06K7/10 ,  G06K9/24

CPC分类号： G06K7/10881 ,  G06K2207/1018

摘要： A hand held scanning device (20) has a sensing unit (26) consisting of a first linear array (30) of light emitting diodes (LEDs) (32) spaced from and parallel to a second linear array (34) of photosensitive element integrated circuits (36). The LEDs (32) and integrated circuits (36) are mounted on a common substrate (60) facing an opening in bottom surface (24) of housing (22). A roller (28) is parallel to the sensing unit (261. A wheel (82) containing light and dark areas is positioned to be rotated by the roller (28). The roller (28) assures that the scanning device (20) travels in a straight line path when it is moved along a sheet of paper. The light and dark areas of the wheel (82) are sensed to define line scans of the device (20) and uniform light exposure by the LEDs (32) on the basis of distance travelled along the sheet of paper. A tight collimating fiber optic plate (67) is positioned over each integrated circuit (36).

公开(公告)号：EP0171925B1

公开(公告)日：1992-07-01

申请号：EP85304963.3

申请日：1985-07-11

申请人： Rockwell III, Marshal A,

发明人： Rockwell III, Marshal A,

IPC分类号： G06K7/10 ,  G06K9/24

CPC分类号： G06K7/10881 ,  G06K2207/1018