Heat sink, laser apparatus provided with such heat sink, and...

Details Heat sink, laser apparatus provided with such heat sink, and... Heat sink, laser apparatus provided with such heat sink, and...

2011-05-17

2011-05-17

Harvey, Minsun (Department: 2828)

Coherent light generators

Particular temperature control

Liquid coolant

C372S036000, C372S050120

Reexamination Certificate

active

07944956

ABSTRACT:
A heat sink has a first flat plate, a partition plate, and a second flat plate. The first flat plate has an upper surface in which a first recess is formed. The second flat plate has a lower surface in which a second recess is formed, and an upper surface on which a semiconductor laser element is mounted. These recesses form a part of a refrigerant channel. The partition plate has a lower surface covering the first recess, an upper surface covering the second recess, and at least one through hole having the first recess communicated with the second recess. The first flat plate and the second flat plate both have a first coefficient of thermal expansion. The partition plate has a second coefficient of thermal expansion lower than the first coefficient of thermal expansion.

REFERENCES:
patent: 6097744 (2000-08-01), Takigawa et al.
patent: 6917638 (2005-07-01), Suzuki et al.
patent: 2005/0141575 (2005-06-01), Lorenzen
patent: 2003-273441 (2003-09-01), None
patent: 2004-186527 (2004-07-01), None
patent: 2004-207609 (2004-07-01), None
patent: 2004-207619 (2004-07-01), None

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