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1. 发明授权

US5027418A Electro-optical inspection apparatus for printed-circuit boards with components mounted thereon 失效
标题翻译：具有安装在其上的部件的印刷电路板的电光检查装置
公开(公告)号：US5027418A
公开(公告)日：1991-06-25
申请号：US478339
申请日：1990-02-12
申请人： Kazutoshi Ikegaya , Yuji Maruyama , Kunjo Sannomiya , Yukifumi Tsuda , Hiroto Toba
发明人： Kazutoshi Ikegaya , Yuji Maruyama , Kunjo Sannomiya , Yukifumi Tsuda , Hiroto Toba
IPC分类号： G06T7/00
CPC分类号： G06T7/0006 , G06T2207/30141
摘要： A printed-circuit board inspection apparatus for checking the condition of each circuit component mounted by soldering on a printed-circuit board is disclosed in which a luminance signal obtained from the reflected light scattering from the printed-circuit board being illuminated is converted through a given threshold level to binary signals, then the binary signals and mask data are processed to calculate the ratio of an area represented by the number of binary "1" signals to an area represented by the number of binary "0" signals, and the soldering condition of the component is judged based on the area ratio. With this arrangement, the inspection is not negatively influenced by the misalignment of the component with a mating soldering land, is capable of judging the amount of solder, and can be performed automatically and efficiently. The binary signals may be converted into code data by assigning a code "1" or "0" to each of a plurality of split masks set on each soldering land, depending on the largeness of the area in which the number of binary "1" signals "1" is larger than the number of binary "0" signals or vice versa. In this case, the judgment of the soldering condition is made by comparing the code data with code patterns contained in a predetermined code table.

2. 发明授权

US5200799A System for optically inspecting conditions of parts packaged on substrate 失效
标题翻译：用于光学检查包装在基板上的部件的条件的系统
公开(公告)号：US5200799A
公开(公告)日：1993-04-06
申请号：US580547
申请日：1990-09-11
申请人： Yuji Maruyama , Yukifumi Tsuda , Kazutoshi Ikegaya , Kunio Sannomiya , Hiroto Toba , Takumi Seto
发明人： Yuji Maruyama , Yukifumi Tsuda , Kazutoshi Ikegaya , Kunio Sannomiya , Hiroto Toba , Takumi Seto
IPC分类号： G01R31/309
CPC分类号： G01R31/309
摘要： A system for inspecting a condition of parts packaged on a printed-circuit board. The inspection system includes a position detecting device to receive scattered light due to illumination of the printed-circuit board with a laser beam and convert the received scattered light into a position signal. This position signal is used for obtaining luminance data and at least two height data of the parts on the printed-circuit board. Proper height data of the parts is determined on the basis of the difference between the two height data. The inspection system determines the package condition by comparing the final height data with a predetermined reference data.

3. 发明授权

US4983827A Linescan apparatus for detecting salient pattern of a product 失效
标题翻译：用于检测产品突出图案的线条装置
公开(公告)号：US4983827A
公开(公告)日：1991-01-08
申请号：US427507
申请日：1989-10-25
申请人： Kazutoshi Ikegaya , Kunio Sannomiya , Yukifumi Tsuda , Yuji Maruyama , Nobuhiro Araki , Hiroto Toba
发明人： Kazutoshi Ikegaya , Kunio Sannomiya , Yukifumi Tsuda , Yuji Maruyama , Nobuhiro Araki , Hiroto Toba
IPC分类号： G01N21/88 , G01B11/24 , G01B11/245 , G01N21/93 , G01N21/956 , G01R31/309 , H05K3/34 , H05K13/08
CPC分类号： G01R31/309 , H05K13/08
摘要： A linescan apparatus for detecting salient pattern on a surface of a product comprises: a laser light source for continuously emitting a laser beam; a polygon mirror for reflecting the laser beam; a drive for rotating the polygon mirror to scan said laser beam; an f.theta. lens arranged such that the linescan laser beam strikes against the plane perpendicularly; a carrying device for moving the product in the direction substantially perpendicular to the plane; a mirror for reflecting the linescan laser beam reflected at a surface of the product to direct the linescan laser beam to the polygon mirror through the f.theta. lens, the mirror being positioned apart from the second plane; and a beam position detector for detecting unidimensional position of a spot mede by the linescan laser beam projected thereon from the mirror via the polygon mirror. This linescan apparatus provides three-dimensional data of a surface of the product. The detected position signal is compared by reference data for inspecting the product. An linescan apparatus further comprises second beam position detector and an averaging circuit for averaging outputs from first mentioned and second beam detectors.
摘要翻译：用于检测产品表面上的突出图案的线条扫描装置包括：用于连续发射激光束的激光源; 用于反射激光束的多面镜; 用于旋转多面镜以扫描所述激光束的驱动器; f theta透镜布置成使得线可激光束垂直于平面撞击平面; 用于沿着与该平面基本垂直的方向移动产品的承载装置; 用于反射在产品的表面处反射的线阵激光束的反射镜，以通过fθ透镜将线阵激光束引导到多面镜，反射镜被定位成离开第二平面; 以及光束位置检测器，用于通过经由多面镜从反射镜投射到其上的线扫描激光束来检测点中心的一维位置。该线扫描装置提供产品表面的三维数据。通过用于检查产品的参考数据来比较检测到的位置信号。线扫描装置还包括第二光束位置检测器和用于平均来自第一和第二光束检测器的输出的平均电路。

4. 发明授权

US5103105A Apparatus for inspecting solder portion of a circuit board 失效
标题翻译：检查电路板的焊接部分的装置
公开(公告)号：US5103105A
公开(公告)日：1992-04-07
申请号：US602573
申请日：1990-10-24
申请人： Kazutoshi Ikegaya , Yuji Maruyama , Yukifumi Tsuda , Kunio Sannomiya , Hiroto Toba
发明人： Kazutoshi Ikegaya , Yuji Maruyama , Yukifumi Tsuda , Kunio Sannomiya , Hiroto Toba
IPC分类号： G01R31/309
CPC分类号： G01R31/309
摘要： A beam of light is applied to a surface of a circuit board provided with at least one solder portion. The light beam scans the surface of the circuit board. Height data are derived from a portion of the light beam which is scattered at the surface of the circuit board. The height data represent a height of a currently-scanned point of the surface of the circuit board. The height data are accumulatively added for the solder portion. A variation in the height data is calculated. The accumulative addition of the height data is executed and suspended in response to the calculated variation in the height data. A decision is made as to whether the solder portion is acceptable or unacceptable on the basis of a result of the accumulative addition.

5. 发明授权

US4508632A Heat storage materials 失效
标题翻译：储热材料
公开(公告)号：US4508632A
公开(公告)日：1985-04-02
申请号：US504601
申请日：1983-06-15
申请人： Takeshi Takeda , Yasuhiko Machida , Yasuo Kudoh , Kazutoshi Ikegaya
发明人： Takeshi Takeda , Yasuhiko Machida , Yasuo Kudoh , Kazutoshi Ikegaya
IPC分类号： C09K5/06
CPC分类号： C09K5/063
摘要： A heat storage material is described which comprises a mixture of sodium sulfate decahydrate or sodium thiosulfate pentahydrate, and urea. The mixing ratio by mole of the sulfate decahydrate to urea is in the range of 1:1 to 1:3 and the mixing ratio by mole of the thiosulfate pentahydrate to urea is in the range of 1:2 to 1:8.
摘要翻译：描述了一种储热材料，其包括十水合硫酸钠或五水合硫代硫酸钠和尿素的混合物。硫酸十水合物与尿素的摩尔比的混合比在1:1至1:3的范围内，硫代硫酸五水合物与尿素的摩尔比的混合比在1:2至1:8的范围内。

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