Laser chamber

Patent metadata

Field	Value
Publication number	US-9742141-B2
Application number	US-201615245245-A
Country	US
Kind code	B2
Filing date	Aug 24, 2016
Priority date	Jun 5, 2014
Publication date	Aug 22, 2017
Grant date	Aug 22, 2017

Abstract

A laser chamber including a first space and a second space in communication with the first space may include: a first discharge electrode disposed in the first space; a second discharge electrode disposed in the first space to face the first discharge electrode; a fan disposed in the first space and configured to flow laser gas between the first discharge electrode and the second discharge electrode; a peaking condenser disposed in the second space; and an electrical insulating member configured to partition the first space and the second space from one another, and disposed to allow the laser gas to pass through between the first space and the second space.

First claim

The invention claimed is:

1. A laser chamber including a first space and a second space in communication with the first space, the laser chamber comprising:
a first discharge electrode disposed in the first space;
a second discharge electrode disposed in the first space to face the first discharge electrode;
a fan disposed in the first space and configured to flow laser gas between the first discharge electrode and the second discharge electrode;
a peaking condenser disposed in the second space; and
an electrical insulating member configured to partition the first space and the second space from one another, and disposed to allow the laser gas to pass through between the first space and the second space.

2. The laser chamber according to claim 1 , wherein:
a refrigerant flow path through which a refrigerant flows is provided in a wall of the laser chamber forming the second space; and
the peaking condenser is connected to the wall of the laser chamber in which the refrigerant flow path is provided.

3. The laser chamber according to claim 1 , further comprising a rectifying member disposed upstream and downstream of flow of the laser gas with respect to the first discharge electrode.

4. The laser chamber according to claim 1 , wherein a concave-convex part is formed on a surface of the electrical insulating member in the second space side.

5. The laser chamber according to claim 1 , further comprising:
a first container having the first space therein; and a second container having the second space therein, wherein:
the first space and the second space communicate with one another by bonding a periphery of an opening of the first container to a periphery of an opening of the second container; and
the electrical insulating member is disposed to abut on the periphery of the opening of the first container or the periphery of the opening of the second container.

6. The laser chamber according to claim 1 , further comprising:
a container having one internal space; and
a partition plate formed to extend inward from an inner wall of the container to partition the internal space into the first space and the second space,
wherein the electrical insulating member is disposed to abut on a top end of the partition plate.

Assignees

• Gigaphoton Inc

Inventors

• Tsushima Hiroaki
• Kakizaki Kouji
• Matsunaga Takashi
• Asayama Takeshi
• Katsuumi Hisakazu
• Umeda Hiroshi
• Ikeda Hiroyuki

Classifications

• H01S3/0407

  Liquid cooling, e.g. by water · CPC title

• H01S3/0384

  Auxiliary electrodes, e.g. for pre-ionisation or triggering, or particular adaptations therefor · CPC title

• H01S3/038

  Electrodes, e.g. special shape, configuration or composition · CPC title

• H01S3/08004

  incorporating a dispersive element, e.g. a prism for wavelength selection (H01S3/0811, H01S3/08022 take precedence) · CPC title

• H01S3/041

  for gas lasers {(H01S3/0401 takes precedence)} · CPC title