Cooling for galvo mirrors in laser material processing
AssigneeII-Vi Delaware, Inc.
InventorsJeroen Jonkers, Axel Heinrici, Patrick Kuehl
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Abstract
The present disclosure provides a system for cooling a mirror, comprising a rotatable mirror which is mounted on an axis of rotation and which has, behind a reflecting surface, at least one gas channel with an inlet and at least one outlet; and a static supply for a gas which has an outlet which is connected via a gap and thus contactlessly to the inlet of the gas channel of the rotatable mirror for supplying a gas. Furthermore, a method for cooling a mirror is disclosed, as well as the use of the system in a laser processing head.
Claims17
A system for cooling a mirror comprising
- a rotatable mirror which is attached to an axis of rotation and which has, behind a reflecting surface, at least one gas channel with an inlet and at least one outlet;
- and
- a static feed for a gas, which has an outlet connected via a gap and thus contactless with the inlet of the gas channel of the rotatable mirror for feeding a gas.
In a system comprising a static feed for a gas on a rotatable mirror, wherein at least one gas channel is arranged behind the reflecting surface of the mirror and the gas channel has an inlet which is connected via a gap and thus contactlessly to the inlet of the gas channel of the rotatable mirror for feeding a gas, a method of cooling a mirror, the method comprising:
- introducing a gas via the feed into the at least one gas channel of the mirror;
- and
- discharging the gas via at least one outlet of the at least one gas channel of the mirror.
A method for enabling the cooling of a galvo mirror in a laser processing head comprising:
- arranging a rotatable mirror which is attached to an axis of rotation, and which has, behind a reflecting surface, at least one gas channel with an inlet and at least one outlet in the path of a laser beam of the laser processing head;
- and
- arranging a static feed for a gas, which has an outlet connected via a gap and thus contactless with the inlet of the gas channel of the rotatable mirror for feeding a gas in the laser processing head.
Dependencies are inferred from the claim text.