| 摘要 |
PROBLEM TO BE SOLVED: To provide a joining device for the object to be detected capable of surely and rapidly detecting that an electrically conductive member is held in an object hold portion in a nozzle, to provide a joining method, and to provide a detection method of detecting a position of the object to be detected. SOLUTION: Provided is a detection method of detecting presence of an object to be detected in an object hold portion 5 that is used together with an irradiation portion 15 that irradiates the object with a heat ray, holds the object, and has an opening 3a, the detection method including: imaging an image signal in a predetermined region having the opening 3a by an imaging device 23; and making an irradiation optical path 33 of the irradiation portion 15 and an imaging optical path 31 of the imaging device substantially coincide with each other within the opening by an optical unit. COPYRIGHT: (C)2008,JPO&INPIT
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