专利名称：Apparatus for generating polyphase scan
patterns
发明人：Thomas D. Hayosh,Anthony J. Torre申请号：US05/626408申请日：19751028公开号：US04041322A公开日：19770809
摘要：An optical scanner is disclosed for reading of bar code symbols on packagesmoving through a reading field. The scanner generates a polyphase scan pattern which isadapted for omnidirectional reading of a bar code symbol. The scanner, in one
embodiment, comprises an oscillatory mirror driven by an electromechanical resonatorfor producing beam deflection along the amplitude axis and includes a rotarymultifaceted mirror for producing beam deflection along the time axis. In anotherembodiment an optical galvanometer is used to produce beam deflection along theamplitude axis and in this embodiment a substantially straight line trace is produced inaddition to the polyphase pattern.
申请人：SCHILLER INDUSTRIES, INC.
代理机构：Reising, Ethington, Barnard
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