Electric heating – Metal heating – By arc
Reexamination Certificate
2007-01-02
2007-01-02
Evans, Geoffrey S. (Department: 1725)
Electric heating
Metal heating
By arc
Reexamination Certificate
active
11187027
ABSTRACT:
A laser-machining method is provided in which a laser beam is generated with an energy intensity distribution that is a Gaussian distribution. The laser beam is shaped by applying a phase modulation based on a phase distribution expressed by a first order function having a negative gradient, then by applying a phase modulation based on a phase distribution expressed by an n-th order function having a positive gradient (n is a natural number no less than 2), and the laser beam, whose energy intensity distribution has been made substantially flat through the above processes, is led to irradiate a machined body, thereby machining the machined body.
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Evans Geoffrey S.
Seiko Epson Corporation
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