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公开(公告)号：EP1016026B1
公开(公告)日：2006-01-11
申请号：EP98949372.1
申请日：1998-09-16
发明人： BLAKE, Robert, E. , COLAVITO, Stephen, J. , ZHU, Xiaoxun , NAYLOR, Charles, A. , AMUNDSEN, Thomas , CARULLO, Thomas , KNOWLES, Carl, Harry
IPC分类号： G06K7/10
CPC分类号： G06K7/10851 , G02B26/105 , G02B26/106 , G06K7/10574 , G06K7/10643
摘要： A bar code symbol reading system is disclosed comprising a hand-supportable bar code symbol reading device (9) which embodies an electronically-controlled bar code symbol reading engine (18) for producing a raster-type laser scanning pattern in either a hands-free and hands-on mode of operation for scanning 1D and 2D bar code symbols. The electronically-controlled bar code symbol reading engine (18) has a high-speed/high-resolution raster scanning mode of operation, during which a high-speed, high-resolution raster-type scanning pattern is precisely generated under electronic control, and a high-speed/low-resolution raster scanning mode of operation during which a high-speed, low-resolution raster-type scanning pattern is precisely generated under electronic control.
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2.发明授权DOE-BASED SYSTEMS AND DEVICES FOR PRODUCING LASER BEAMS HAVING MODIFIED BEAM CHARACTERISTICS 有权美国能源部为基础的系统（杂散END，光学元件）和设备生产的激光束修饰过的特性的
公开(公告)号：EP1084430B1
公开(公告)日：2006-07-26
申请号：EP99925567.2
申请日：1999-04-30
发明人： DICKSON, Leroy , GOOD, Timothy, A. , AMUNDSEN, Thomas, C. , GROOT, John , KNOWLES, C., Harry , CARULLO, Thomas
CPC分类号： G02B5/1842 , G02B5/32 , G02B19/0014 , G02B19/0052 , G02B27/09 , G02B27/0944 , H01S5/005 , H01S5/4025
摘要： Novel methods are disclosed for designing and constructing miniature optical systems and devices employing light diffractive optical elements (DOEs) for modifying the size and shape of laser beams produced from commercial-grade laser diodes, over an extended range hitherto unachievable using conventional techniques. The systems and devices of the present invention have uses in a wide range of applications, including laser scanning, optical-based information storage, medical and analytical instrumentation, and the like. In the illustrative embodiments, various techniques are disclosed for implementing the DOEs as holographic optical elements (HOEs), computer-generated holograms (CGHs), as well as other diffractive optical elements.
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3.发明公开DOE-BASED SYSTEMS AND DEVICES FOR PRODUCING LASER BEAMS HAVING MODIFIED BEAM CHARACTERISTICS 有权美国能源部为基础的系统（杂散END，光学元件）和设备生产的激光束修饰过的特性的
公开(公告)号：EP1084430A2
公开(公告)日：2001-03-21
申请号：EP99925567.2
申请日：1999-04-30
发明人： DICKSON, Leroy , GOOD, Timothy, A. , AMUNDSEN, Thomas, C. , GROOT, John , KNOWLES, C., Harry , CARULLO, Thomas
CPC分类号： G02B5/1842 , G02B5/32 , G02B19/0014 , G02B19/0052 , G02B27/09 , G02B27/0944 , H01S5/005 , H01S5/4025
摘要： Methods are disclosed for designing and constructing miniature optical systems and devices (2) employing optical elements such as a lens (L1) and light diffractive optical elements (DOEs) (D1, D2) for modifying the size and shape of laser beams produced from commercial-grade laser diodes (4), over an extended range. The systems and devices have uses in a wide range of applications, including laser scanning, optically-based information storage, and medical and analytical instrumentation. Various techniques are disclosed for implementing the DOEs as holographic optical elements (HOEs), computer-generated holograms (CGHs), as well as other diffractive optical elements.
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公开(公告)号：EP1016026A1
公开(公告)日：2000-07-05
申请号：EP98949372.1
申请日：1998-09-16
发明人： BLAKE, Robert, E. , COLAVITO, Stephen, J. , ZHU, Xiaoxun , NAYLOR, Charles, A. , AMUNDSEN, Thomas , CARULLO, Thomas , KNOWLES, Carl, Harry
IPC分类号： G06K7/10
CPC分类号： G06K7/10851 , G02B26/105 , G02B26/106 , G06K7/10574 , G06K7/10643
摘要： A bar code symbol reading system is disclosed comprising a hand-supportable bar code symbol reading device (9) which embodies an electronically-controlled bar code symbol reading engine (18) for producing a raster-type laser scanning pattern in either a hands-free and hands-on mode of operation for scanning 1D and 2D bar code symbols. The electronically-controlled bar code symbol reading engine (18) has a high-speed/high-resolution raster scanning mode of operation, during which a high-speed, high-resolution raster-type scanning pattern is precisely generated under electronic control, and a high-speed/low-resolution raster scanning mode of operation during which a high-speed, low-resolution raster-type scanning pattern is precisely generated under electronic control.
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