Laser output unit
AssigneesMiyachi Technos Corporation, Mitsui Petrochemical Industries, Ltd.
InventorsHiroyuki Okuyama, Minoru Kojima, Mitsugu Terada, Seigoh Murakami, Takahiro Uchida
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Abstract
A laser output unit according to the present invention comprises a body having a laser output port at an extreme and thereof, lenses provided within said body to condense laser beam introduced to emit it from the laser output port, and a protective glass provided between said laser output port and said lens within said body. A gas jet port and a gas exhaust port opposed to said gas jet port are provided at said body portion between said protective glass and said laser output port. A gas crosses at a position between the protective glass and the laser output port. Flying matter is blown away by the gas and does not arrive at the protective glass.
Claims9
Laser output unit comprising:
- a body having a laser path therein and a laser output port at an extreme end thereof.
- a lens provided within said body to condense laser beam introduced to emit it from the laser output port,
- a transparent protective glass provided between said laser output port and said lens within said body, and
- a gas jet port to blow gas and a gas exhaust port opposed to said gas jet port provided in said body between said protective glass and said laser output port respectively.
Dependencies are inferred from the claim text.