发明名称 OPTICAL PATH EQUALIZER
摘要 An optical system for adjusting the optical path between a detector and an object, such as an information-encoded label affixed to a package. The optical system comprises a pair of movable mirrors (60, 80) and an array of fixed mirrors (70). One of the movable mirrors is positionable to direct an image reflected from the object to any one of the array of fixed mirrors. The other of the movable mirrors is positionable to direct the image reflected by the fixed mirror to the detector (20). The positions of the movable minors are adjusted responsive to variations in the measured height of different objects.
申请公布号 CA2197193(C) 申请公布日期 2000.06.20
申请号 CA19952197193 申请日期 1995.08.14
申请人 UNITED PARCEL SERVICE OF AMERICA, INC. 发明人 BJORNER, JOHANNES ARNE SCHIONNING;SMITH, STEVEN LEW
分类号 G06K7/015;G06K7/10;(IPC1-7):G06K7/10 主分类号 G06K7/015
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