发明名称
摘要 <p>An apparatus for inspecting a surface condition of an object having at least a first surface to be inspected and a second surface to be inspected with a higher detection resolution than the first surface includes a holding mechanism, and first and second inspection systems. The holding mechanism holds the object so as to dispose the second surface at a constant position irrespective of the distance between the first and second surfaces. The first and second inspection systems inspect the first and second surfaces of the object, respectively, and each includes an irradiator producing a condensed light beam to illuminate a surface of the object and a receiver for receiving light from a surface of the object. The first and second inspection systems set the angle subtended by the condensed light beam of the first inspection system to be smaller than the angle subtended by the condensed light beam of the second inspection system.</p>
申请公布号 JP2933736(B2) 申请公布日期 1999.08.16
申请号 JP19910055558 申请日期 1991.02.28
申请人 KYANON KK 发明人 KONO MICHIO
分类号 G01B11/30;G01N21/88;G01N21/94;G01N21/956;G03F1/84;(IPC1-7):G01B11/30;G03F1/08 主分类号 G01B11/30
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