发明名称 Illumination for use in electronic component mounting apparatus
摘要 An illuminator (51) includes: a first cylindrical member (52) with a mirror-like inner surface formed to facilitate light reflection; a flat plate member (53) having an aperture in its center; LEDs (54) with trimmed distal ends and arranged in a circle along the periphery of the aperture; LEDs (55) with trimmed distal ends and arranged in a circle along a circumferential direction of the first cylindrical member (52) so as to be located on a lengthwise middle part of the inner surface of the cylindrical member; a second cylindrical member having an engagement portion engaged with the cylindrical member (52); LEDs (57) with trimmed distal ends and arranged in a circle along a circumferential direction of the engagement portion; and a ring-shaped semitransparent diffusion plate (58). The illuminators (51) illuminate a to-be-mounted component with light having a directivity. <IMAGE>
申请公布号 EP0994646(A1) 申请公布日期 2000.04.19
申请号 EP19990119950 申请日期 1999.10.12
申请人 YAMAGATA CASIO CO., LTD. 发明人 WATANABE, MAHITO
分类号 F21S2/00;F21V7/00;G01N21/88;G01N21/956;H05K13/08 主分类号 F21S2/00
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