US4866238A
Expired / Lapsed
US
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Gas laser device
Assignee: Fanuc Corp
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Filing: 1987-08-26
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Granted: 1989-09-12
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Expires: 2007-08-26
Abstract
Abstract A gas laser device in which a laser medium gas is circulated in an airtight container and a laser beam is generated from the gas excited by an electric discharge, includes a main unit (10) including an air blower and a heat exchanger for circulating and cooling the gas, and a discharging power supply. A laser beam emitter includes a resonator (2). The main unit and the laser beam emitter are separate from each other, with the laser beam emitter being mounted on the tip end of a robot (1). The resonator (2) includes a lateral multimode resonator, and the discharging power supply includes a high-frequency power supply. A gas flow in the resonator (2) is produced by using a compressor having a high compression ratio.
Inventors
- 👤 Norio Karube
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:29
CPC Classifications
B; B23; B23K; B23K26/00; B23K26/08; B23K26/0869; B23K26/0876; B23K26/0884; B25; B25J; B25J19/00; B25J19/0025; H; H01; H01S; H01S3/00; H01S3/02; H01S3/03; H01S3/036
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
130 words
A gas laser device in which a laser medium gas is circulated in an airtight container and a laser beam is generated from the gas being excited by an electric discharge, the device comprising: a multi-articulation robot having an arm; a main unit including a laser oscillation controller having a discharging power supply, said main unit being disposed adjacent the multi-articulation robot; a laser beam emitter including a resonator and being spaced from the main unit on a distal end of the robot arm; and flexible pipes interconnecting the main unit to the laser beam emitter; said resonator being a lateral multimode resonator; said discharging power supply being a high-frequency power supply; and said resonator having a gas flow which is produced by a compressor having a high compression ratio.
Claim 2
Dependent Claim
130 words
A gas laser device in which a laser medium gas is circulated in an airtight container and a laser beam is generated from the gas being excited by an electric discharge, the device comprising: a multi-articulation robot having an arm; a main unit including a laser oscillation controller having a discharging power supply, said main unit being disposed adjacent the multi-articulation robot; a laser beam emitter including a resonator and being spaced from the main unit on a distal end of the robot arm; and flexible pipes interconnecting the main unit to the laser beam emitter; said resonator being a lateral multimode resonator; said discharging power supply being a high-frequency power supply; and said resonator having a gas flow which is produced by a compressor having a high compression ratio.
Claim 3
Dependent Claim
19 words
A gas laser device according to claim 1, wherein said laser beam emitter includes an aspherical, rotatable reflecting mirror.
Claim 4
Dependent Claim
17 words
A gas laser device according to claim 2, wherein said reflecting mirror has a parabolic curved surface.
Claim 5
Dependent Claim
29 words
A gas laser device according to claim 2, wherein said aspherical reflecting mirror is movable in a direction normal to the direction in which the reflecting mirror is rotatable.
Claim 6
Dependent Claim
26 words
A gas laser device according to claim 1, wherein said laser oscillation controller includes a laser gas controller, the high-frequency power supply, and an output controller.
Claim 7
Dependent Claim
42 words
A gas laser device according to claim 1, further comprising a robot having a movable arm, and said main unit further comprises a robot controller, said laser beam emitter being attached to a distal end of the movable arm of the robot.
Claim 8
Dependent Claim
20 words
A gas laser device according to claim 1, wherein the gas flow of the resonator is a lateral gas flow.
Claim 9
Dependent Claim
20 words
A gas laser device according to claim 1, wherein the gas flow of the resonator is a vertical gas flow.
Claim 10
Dependent Claim
22 words
A gas laser device according to claim 1, wherein the frequency of the high-frequency power supply is in the radio frequency range.
Claim 11
Dependent Claim
142 words
A gas laser device in which a laser medium gas is circulated in an airtight container and a laser beam is generated from the gas being excited by an electric discharge, the device comprising: a multi-articulation robot having a movable arm; a main unit including a robot controller and a laser oscillation controller having a high frequency discharging power supply, said main unit being disposed adjacent the multi-articulation robot; a resonator having a lateral gas flow for cooling the laser medium gas and being disposed on a distal end of the robot arm; flexible pipes interconnecting the main unit to the laser beam emitter; a high compression air blower in fluid communication with the resonator for circulating the laser medium gas in the resonator; and an aspherical reflecting mirror coupled to the resonator for emitting a laser beam in a controllable direction.
Claim 12
Dependent Claim
142 words
A gas laser device in which a laser medium gas is circulated in an airtight container and a laser beam is generated from the gas being excited by an electric discharge, the device comprising: a multi-articulation robot having a movable arm; a main unit including a robot controller and a laser oscillation controller having a high frequency discharging power supply, said main unit being disposed adjacent the multi-articulation robot; a resonator having a lateral gas flow for cooling the laser medium gas and being disposed on a distal end of the robot arm; flexible pipes interconnecting the main unit to the laser beam emitter; a high compression air blower in fluid communication with the resonator for circulating the laser medium gas in the resonator; and an aspherical reflecting mirror coupled to the resonator for emitting a laser beam in a controllable direction.
Claim 13
Dependent Claim
16 words
A gas laser device according to claim 9, wherein said resonator is a lateral multimode resonator.
Claim 14
Dependent Claim
21 words
A gas laser device according to claim 10, wherein said high-frequency power supply has a frequency in the radio frequency range.
Claim 15
Dependent Claim
20 words
A gas laser device according to claim 1, wherein the high-frequency discharging power supply is in the radio frequency range.
Claim 16
Dependent Claim
20 words
A gas laser device according to claim 10, wherein the high-frequency discharging power supply is in the radio frequency range.
Claim 17
Dependent Claim
192 words
A gas laser device coupled to a multi-articulation robot provided with an arm driven by a servo motor, comprising: a laser oscillation control means for controlling a laser oscillation state comprising laser gas control means for circulating a laser medium gas by a compressor having a high compression ratio, high-frequency power supply means for supplying high-frequency power to effect an electric discharge of the laser medium gas, and output control means for outputting a laser beam output control signal; laser beam emitting means attached to the distal end of the arm of said multi-articulation robot for circulating said laser medium gas to a laser resonator in an airtight container and generating a laser beam from said laser medium gas excited by the electric discharge; a gas piping disposed along the arm of said multi-articulation robot for supplying said laser medium gas of said laser oscillation control means to said laser beam emitting means; and an electric piping disposed along the arm of said multi-articulation robot for housing cables for supplying said high-frequency power and said laser beam output control signal of said laser oscillation control means to said laser beam emitting means.
Claim 18
Dependent Claim
192 words
A gas laser device coupled to a multi-articulation robot provided with an arm driven by a servo motor, comprising: a laser oscillation control means for controlling a laser oscillation state comprising laser gas control means for circulating a laser medium gas by a compressor having a high compression ratio, high-frequency power supply means for supplying high-frequency power to effect an electric discharge of the laser medium gas, and output control means for outputting a laser beam output control signal; laser beam emitting means attached to the distal end of the arm of said multi-articulation robot for circulating said laser medium gas to a laser resonator in an airtight container and generating a laser beam from said laser medium gas excited by the electric discharge; a gas piping disposed along the arm of said multi-articulation robot for supplying said laser medium gas of said laser oscillation control means to said laser beam emitting means; and an electric piping disposed along the arm of said multi-articulation robot for housing cables for supplying said high-frequency power and said laser beam output control signal of said laser oscillation control means to said laser beam emitting means.
Claim 19
Dependent Claim
22 words
A gas laser device according to claim 15, wherein said laser resonator has a volume ranging from 750 cc to 3000 cc.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-09-11 | 1993-03-13 | 1993-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-11 | 1997-03-13 | 1997-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-11 | 2001-03-13 | 2001-09-12 | $7700.00 | Window Closed / Lapsed |