Image analysis – Applications – Manufacturing or product inspection
Patent
1997-03-11
1999-12-07
Au, Amelia
Image analysis
Applications
Manufacturing or product inspection
356375, G06K 900, G01B 1114
Patent
active
059996404
ABSTRACT:
An apparatus for mounting an electronic part includes a reflector located in the rear of an electronic part held by a nozzle on a transferring head, and an image reading device for observing an electronic part held and moved by the transferring head. The image reading device picks up an image from the electronic part. The picked-up image is recognized so as to detect a position of the electronic part with which the motion of the transferring head is controlled. The image reading device includes a line sensor for observing from below the electronic part held by the nozzle of the transferring head, a transmissive illuminating unit for irradiating light onto the reflector so as to make the background of the electronic part bright; a direct illuminating unit for irradiating from below the lower surface of the electronic part passing above the line sensor. Light obtained by emitting a band-like beam from either the transmissive illuminating unit or the direct illuminating unit and then reflecting the same upon the reflector or upon the lower surface of the electronic part is introduced into the line sensor so as to pick up an image from the electronic part attracted by the nozzle.
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Hatase Takayuki
Ogata Kenichi
Au Amelia
Cooperrider F. E.
Matsushita Electric - Industrial Co., Ltd.
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