IP Library Granted Patent US 10,164,396
Granted Patent B2
US 10,164,396 · App. 15/720,122 · Granted Dec 25, 2018

Laser unit and non-transitory computer-readable storage medium

Inventors: Akihiko Kurosu (Tochigi, JP); Takashi Matsunaga (Tochigi, JP); Hiroyuki Masuda (Tochigi, JP); Osamu Wakabayashi (Tochigi, JP); Hiroaki Tsushima (Tochigi, JP); Masanori Yashiro (Tochigi, JP); Takeshi Ohta (Tochigi, JP)
Assignee: Gigaphoton Inc.
H01S3/036H01S3/0404H01S3/0971H01S3/09702H01S3/104H01S3/03H01S3/041H01S3/0407H01S3/08009H01S3/08031H01S3/134H01S3/1306H01S3/2258
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Quick Facts
Patent No.
US 10,164,396
App. No.
15/720,122
Granted
Dec 25, 2018
Kind
B2
Abstract

There may be provided a laser unit including a display configured to display one or both of electric power consumed by the laser unit and electric energy consumed by the laser unit.

Claims (24)

1. A laser unit comprising:

a pair of electrodes;

a fan configured to make flow of gas fed to a clearance between the electrodes;

a motor configured to rotate the fan;

a display configured to display one or both of electric power consumed by the laser unit and electric energy consumed by the laser unit; and

a charger configured to apply a voltage between the electrodes,

the electric power consumed by the laser unit including one or more of electric power consumed by the charger, electric power consumed by the motor, and a sum of the electric power consumed by the charger and the electric power consumed by the motor,

the electric energy consumed by the laser unit including one or more of electric energy consumed by the charger, electric energy consumed by the motor, and a sum of the electric energy consumed by the charger and the electric energy consumed by the motor,

the electric power consumed by the motor being calculated based on pressure of the gas fed to the clearance between the electrodes, and

the electric energy consumed by the motor being calculated based on the pressure of the gas fed to the clearance between the electrodes.

2. The laser unit according to claim 1 , wherein the electric energy consumed by the charger is obtained by integrating the electric energy consumed through applying the voltage to the pair of electrodes.

3. The laser unit according to claim 1 , further comprising a standby-power supply configured to supply the laser unit with standby electric power, wherein

the electric power consumed by the laser unit includes a sum of electric power consumed by the charger, the electric power consumed by the motor, and electric power consumed by the standby-power supply, and

the electric energy consumed by the laser unit includes a sum of electric energy consumed by the charger, the electric energy consumed by the motor, and electric energy consumed by the standby-power supply.

4. The laser unit according to claim 1 , further comprising a controller configured to calculate one or both of the electric power consumed by the laser unit and the electric energy consumed by the laser unit.

5. The laser unit according to claim 4 , wherein the controller further controls a flow rate of water cooling at least the charger and the motor, based on one or both of the electric power consumed by the laser unit and the electric energy consumed by the laser unit.

6. The laser unit according to claim 4 , wherein the controller further controls a flow rate of air cooling at least the charger and the motor, based on one or both of the electric power consumed by the laser unit and the electric energy consumed by the laser unit.

7. The laser unit according to claim 4 , further comprising:

a laser resonator configured to amplify light resulting from applying the voltage to the pair of electrodes;

an optical system configured to guide the light amplified by the laser resonator; and

an oxygen concentration meter configured to measure concentration of oxygen in gas passing through the optical system, wherein

the controller further controls a flow rate of the gas passing through the optical system, based on the concentration of the oxygen in the gas passing through the optical system.

8. The laser unit according to claim 4 , further comprising an energy dispersion measurement device configured to measure energy dispersion of laser light emitted from the laser unit, wherein

the controller further controls, based on the energy dispersion, composition of the gas fed to the clearance between the electrodes.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 29, 2017
From: KUROSU, AKIHIKO; MATSUNAGA, TAKASHI; MASUDA, HIROYUKI; WAKABAYASHI, OSAMU; TSUSHIMA, HIROAKI; YASHIRO, MASANORI; OHTA, TAKESHI
To: GIGAPHOTON INC.
Reel/Frame 043740/0009 →
Continuity (3)
Division 15144081 · May 2, 2016
Continuation PCTJP2013079912 · Nov 5, 2013
Related Publication 20180026414A1 · Jan 25, 2018