发明名称 RELATIVE BACK FOCUS MONITORING METHOD AND APPARATUS
摘要 The subject invention provides an improved method and apparatus for determining the relative back-focus of each of a plurality of lenticules or the like and, more particularly, provides a method and a means for sequentially determining the relative back-focus of each of a plurality of lenticules, comprising a lenticular film which is disposed along one surface of a supporting web.
申请公布号 US3652165(A) 申请公布日期 1972.03.28
申请号 USD3652165 申请日期 1970.05.01
申请人 POLAROID CORP. 发明人 EDWARD S. CANDIDUS JR.;THOMAS W. SNOW;JOHN F. ULLATHORNE
分类号 G01M11/00;G01N21/956;G03B21/32;G03C7/14;(IPC1-7):G01B9/00 主分类号 G01M11/00
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