# US 10,442,032 B2 · Processing device and processing method

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 10,442,032 B2
- Document ID: US10442032B2
- Status: Granted
- Kind: B2
- Application number: 15/300,207
- Filed: 2015-01-26
- Published: 2017-06-29
- Granted: 2019-10-15
- Earliest claimed: 2014-03-31
- Assignees: Mitsubishi Heavy Industries, Ltd.
- Applicants: Mitsubishi Heavy Industries, Ltd.
- Inventors: Saneyuki Goya; Kenji Muta; Toshiya Watanabe; Takashi Ishide
- Web page: https://patentgrep.com/patent/US10442032B2

## CPC

- B23K 26/062: by direct control of the laser beam
- B23K 26/0622: by shaping pulses
- B23K 26/0624: {using ultrashort pulses, i.e. pulses of 1 ns or less}
- B23K 26/082: Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
- B23K 26/0884: {in at least three axial directions, e.g. manipulators, robots}
- B23K 26/21: by welding
- B23K 26/32: taking account of the properties of the material involved
- B23K 26/34: Laser welding for purposes other than joining
- B23K 26/342: Build-up welding
- B23K 26/38: by boring or cutting
- B23K 26/40: taking account of the properties of the material involved
- H01S 5/0071: {for beam steering, e.g. using a mirror outside the cavity to change the beam direction}
- H01S 5/02423: {Liquid cooling, e.g. a liquid cools a mount of the laser}
- H01S 5/02476: {Heat spreaders, i.e. improving heat flow between laser chip and heat dissipating elements}
- H01S 5/042: Electrical excitation {; Circuits therefor (monolithically integrated laser drive components H01S5/0261)}
- H01S 5/4012: {Beam combining, e.g. by the use of fibres, gratings, polarisers, prisms}
- H01S 5/423: {having a vertical cavity}
- B23K 2103/05: {Stainless steel}
- B23K: SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- H01S: DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL

## Abstract

Provided are a processing device and a processing method with which the device can be made more compact, and with which highly precise processing can be performed. The processing device, which processes a member to be processed by irradiating the member to be processed with a laser, has: a laser oscillator having a plurality of vertical cavity surface-emitting laser diode chips that output laser light having a wavelength of 1,070 nm or less, and a substrate on the surface of which the plurality of vertical cavity surface-emitting laser diode chips are arranged in a matrix; a guidance optical system that guides the laser light output from the laser oscillator; and a control device that controls the output of the laser oscillator.

## Claims

### Claim 1

A processing device that processes a member to be processed by irradiating the member to be processed with a laser, the device comprising:
a laser oscillator including a plurality of vertical cavity surface-emitting laser elements that output a laser having a wavelength of no greater than 1,070 nm, and a substrate on the surface of which the plurality of vertical cavity surface-emitting laser diode chips are arranged in a matrix;
a guidance optical system that guides the laser outputted from the laser oscillator; and
a control device that controls the output of the laser oscillator.

### Claim 2 (depends on 1)

The processing device according to claim 1, comprising
a plurality of the laser oscillators,
wherein the plurality of laser oscillators are arranged so that laser output surfaces thereof are adjacent to each other.

### Claim 3 (depends on 2)

The processing device according to claim 2, wherein the plurality of laser oscillators are arranged in a matrix.

### Claim 4 (depends on 2)

The processing device according to claim 2, wherein the plurality of laser oscillators are arranged in a single row.

### Claim 5

A processing device that processes a member to be processed, the device comprising:
a processing head that processes the member to be processed;
a heating head that heats the member to be processed, the heating head including a laser oscillator, which has a plurality of vertical cavity surface-emitting laser diode chips that output a laser and a substrate on the surface of which the plurality of vertical cavity surface-emitting laser diode chips are arranged in a matrix, and a guidance optical system that guides the laser outputted from the laser oscillator; and
a control device that controls the heating of the member to be processed by controlling the output of the laser oscillator.

### Claim 6 (depends on 5)

The processing device according to claim 5, wherein the processing head processes the member to be processed by irradiating the member to be processed with a laser.

### Claim 7 (depends on 5)

The processing device according to claim 5, wherein the heating head is fixed to the processing head.

### Claim 8 (depends on 1)

The processing device according to claim 1, wherein the guidance optical system focuses the laser outputted from the plurality of vertical cavity surface-emitting laser diode chips onto the member to be processed.

### Claim 9 (depends on 1)

The processing device according to claim 1, wherein the guidance optical system includes a focusing unit that focuses the laser outputted from the plurality of vertical cavity surface-emitting laser diode chips, and an optical fiber cable on which the laser focused by the focusing unit is incident and that transmits the laser.

### Claim 10 (depends on 1)

The processing device according to claim 1, wherein the laser oscillator includes a cooling mechanism that cools the substrate.

### Claim 11 (depends on 1)

The processing device according to claim 1, wherein the control device controls a laser power distribution of the vertical cavity surface-emitting laser diode chips of the laser oscillator.

### Claim 12 (depends on 1)

The processing device according to claim 1, wherein the processing is one of three-dimensional printing, cladding, welding, surface treatment, boring a hole, cutting, and engraving.

### Claim 13

A processing method for processing a member to be processed by irradiating the member to be processed with a laser, the method comprising:
outputting a laser having a wavelength of no greater than 1,070 nm from a plurality of vertical cavity surface-emitting laser diode chips arranged in a matrix on a surface; and
processing the member to be processed by guiding the outputted laser using a guidance optical system.

### Claim 14

A processing method for processing a member to be processed by irradiating the member to be processed with a laser, the method comprising:
heating the member to be processed by outputting a laser from a plurality of vertical cavity surface-emitting laser diode chips arranged in a matrix on a surface and guiding the outputted laser using a guidance optical system; and
processing the member to be processed using a processing head.

### Claim 15 (depends on 6)

The processing device according to claim 6, wherein the heating head is fixed to the processing head.

### Claim 16 (depends on 2)

The processing device according to claim 2, wherein the guidance optical system focuses the laser outputted from the plurality of vertical cavity surface-emitting laser diode chips onto the member to be processed.

### Claim 17 (depends on 3)

The processing device according to claim 3, wherein the guidance optical system focuses the laser outputted from the plurality of vertical cavity surface-emitting laser diode chips onto the member to be processed.

### Claim 18 (depends on 4)

The processing device according to claim 4, wherein the guidance optical system focuses the laser outputted from the plurality of vertical cavity surface-emitting laser diode chips onto the member to be processed.

### Claim 19 (depends on 5)

The processing device according to claim 5, wherein the guidance optical system focuses the laser outputted from the plurality of vertical cavity surface-emitting laser diode chips onto the member to be processed.

### Claim 20 (depends on 6)

The processing device according to claim 6, wherein the guidance optical system focuses the laser outputted from the plurality of vertical cavity surface-emitting laser diode chips onto the member to be processed.
