Light irradiation type thermal processing apparatus and method of adjusting light irradiation intensity
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United States of America Patent
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Jul 4, 2006
Grant Date -
Dec 30, 2004
app pub date -
May 20, 2004
filing date -
May 21, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A magnetic ring of ferromagnetic is attached to a wire for supplying electric power to a flash lamp. The magnetic ring is removable and is easily attachable to and detachable from the wire. When turning on the flash lamp, a high electrical current momentarily flows through the wire and intense magnetic fields occur around the wire, so that the magnetic ring attached around the wire is momentarily magnetized. As the result, induced electromotive force is generated and the current momentarily flowing through the wire is weakened, so that the irradiation intensity of the flash lamp is slightly lowered. In contrast, if desired to slightly increase the irradiation intensity of the flash lamp, the magnetic ring may be detached from the wire.
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