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US 5,315,605 AGranted
Ion laser apparatus
AssigneeNEC Corporation
InventorYoshio Nakazawa
Life of this patent
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Abstract
An ion laser apparatus includes an ion laser tube, a pipe member, and air cooling heat radiating fins. The ion laser tube base a laser capillary having a discharge path between an anode and a hot cathode and a feedback path for an internal gas. The pipe member constitutes a cooling liquid channel for causing a cooling liquid to flow in an outer peripheral portion of the laser capillary. The air cooling heat radiation fins directly radiate heat, which is generated by the laser capillary, without being through the cooling liquid.
Claims4
An ion laser apparatus comprising:
- a laser tube including a laser capillary having a discharge path between an anode and a hot cathode and a feedback path for an internal gas inside of:
- a pipe member constituting a cooling liquid channel for enabling a cooling liquid to flow between an outer peripheral surface of said laser capillary and an inner peripheral surface thereof in order to cool a said laser tube, the inner peripheral surface of said pipe member being in partial contact with the outer peripheral portion of said laser capillary;
- and
- air cooling heat radiation fins, fixed on an outer peripheral surface of said pipe member in correspondence with a contact portion between the inner peripheral surface of said pipe member and the outer peripheral surface of said laser capillary, for directly radiating heat, which is generated by said laser capillary, without requiring a heat transfer through the cooling liquid.
1 more element
Dependencies are inferred from the claim text.