Laser type soldering apparatus
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United States of America Patent
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Dec 18, 2012
Issued Date -
N/A
app pub date -
Dec 21, 2007
filing date -
Jan 15, 2007
priority date (Note) -
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Abstract
Provided is a laser type soldering apparatus which performs soldering by projecting a laser beam on a to-be-soldered object, one of a plurality of optical lenses is a conical lens, wherein an incident surface or a emitting surface of the conical lens is a conical surface, and a central portion of the conical lens has a central hole having a diameter smaller than that of a circular laser beam that is incident to the conical lens, and the conical lens converts the circular laser beam to a double circular beam having a ring portion with a circular ring shape and a spot portion located at a center of the ring portion, so that the double circular beam is projected on the to-be-soldered object.
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