SOLDERING VISUAL INSPECTIONS APPARATUS,申请号JP19910265763-传众专利搜索

SOLDERING VISUAL INSPECTIONS APPARATUS

申请公布号：JPH05107040(A)

申请号：JP19910265763

申请日期：1991.10.15

申请公布日期：1993.04.27

申请人：

NEC CORP

发明人：SHOJI HIROYUKI

分类号：G01B11/24;G01N21/88;G01N21/956;H04N7/18;H05K3/34;H05K13/08

主分类号：G01B11/24

摘要：PURPOSE:To facilitate the judgement for the good or bad state of a soldered fillet part and to make it possible to decrease misjudgements. CONSTITUTION:A lighting device 4 emits illuminating light 3. An operating circuit 9 divides the inside of an inspecting window into a plurality of regions with respect to the data of the variable-density values of reflected light 5. The variable-density value is multiplied by a coefficient for every region, and acceptable-product index (d) is obtained. A quality judging circuit 11 judges the good or bad state based on the output data (e) of an adding circuit 10, which computes the total sum of the acceptable-product idexes. As a result, the improvement in defect detecting rate and the reduction in false defect rates can be achieved.