Drawing system and drawing method

Patent metadata

Field	Value
Publication number	US-12466196-B2
Application number	US-202218284391-A
Country	US
Kind code	B2
Filing date	Mar 30, 2022
Priority date	Mar 31, 2021
Publication date	Nov 11, 2025
Grant date	Nov 11, 2025

Abstract

A drawing system according to an embodiment of the present disclosure includes a light source section and a scanning section. The light source section generates a plurality of laser light beams having wavelengths that are different from each other and each correspond to an absorption wavelength of a photothermal conversion agent included in a recording medium. The scanning section scans a surface of the recording medium with the plurality of laser light beams in a state in which irradiation spots of the plurality of laser light beams are arranged side by side at predetermined intervals in a direction orthogonal to or obliquely intersecting with a scanning direction of the plurality of laser light beams.

First claim

The invention claimed is:

1 . A drawing system configured to perform drawing on a heat-sensitive recording medium, the drawing system comprising:
a light source section configured to generate a plurality of laser light beams having wavelengths that are different from each other and correspond to absorption wavelengths of photothermal conversion agents; and a scanning section configured to irradiate a surface of the recording medium with the plurality of laser light beams generated by the light source section at predetermined intervals, and configured to scan the surface of the recording medium with the plurality of laser light beams in synchronization in a same direction, wherein the scanning section is configured to scan the surface of the recording medium with the plurality of laser light beams in a state in which irradiation spots of the plurality of laser light beams are arranged side by side at the predetermined intervals in a linear direction orthogonal to or obliquely intersecting with a scanning direction of the plurality of laser light beams.

2 . The drawing system according to claim 1 , wherein the scanning section is configured to scan, with a second laser light beam of the plurality of laser light beams, a line scanned with a first laser light beam of the plurality of laser light beams in the recording medium, the second laser light beam being different from the first laser light beam.

3 . The drawing system according to claim 1 , wherein the scanning section includes an optical system and a stage, the optical system is configured to perform scanning with the plurality of laser light beams in a first direction, and the stage is configured to move the recording medium in a second direction orthogonal to the first direction.

4 . The drawing system according to claim 1 , wherein the scanning section includes an optical system is configured to perform scanning with the plurality of laser light beams in a first direction and configured to move scan lines of the plurality of laser light beams in a second direction orthogonal to the first direction with a predetermined step width.

5 . The drawing system according to claim 1 , wherein the light source section is configured to output the plurality of laser light beams to the scanning section in a state in which optical axes of the plurality of laser light beams are shifted from each other.

6 . The drawing system according to claim 5 , wherein the light source section is configured to output the plurality of laser light beams to the scanning section to cause the optical axes of the plurality of laser light beams to be parallel to each other at predetermined intervals.

7 . The drawing system according to claim 5 , wherein the light source section is configured to output the plurality of laser light beams to the scanning section to cause the optical axes of the plurality of laser light beams to intersect with each other at a predetermined angle.

8 . The drawing system according to claim 5 , wherein the light source section is configured to output the plurality of laser light beams to the scanning section via optical fibers provided separately for each of the laser light beams.

9 . A drawing method being a method of performing drawing on a heat-sensitive recording medium, the drawing method comprising:
generating a plurality of laser light beams having wavelengths that are different from each other and correspond to absorption wavelengths of photothermal conversion agents; irradiating a surface of the recording medium with the plurality of laser light beams generated at predetermined intervals, and scanning the surface of the recording medium with the plurality of laser light beams in synchronization in a same direction; and scanning the surface of the recording medium with the plurality of laser light beams in a state in which irradiation spots of the plurality of laser light beams are arranged side by side at the predetermined intervals in a linear direction orthogonal to or obliquely intersecting with a scanning direction of the plurality of laser light beams.

10 . The drawing method according to claim 9 , comprising scanning, with a second laser light beam of the plurality of laser light beams, a line scanned with a first laser light beam of the plurality of laser light beams in the recording medium, the second laser light beam being different from the first laser light beam.

11 . The drawing method according to claim 9 , comprising executing raster-scanning by scanning with the plurality of laser light beams in a first direction and moving the recording medium in a second direction orthogonal to the first direction.

12 . The drawing method according to claim 9 , comprising executing raster-scanning by scanning with the plurality of laser light beams in a first direction and moving scan lines of the plurality of laser light beams in a second direction orthogonal to the first direction with a predetermined step width in a state in which the recording medium stands still.

Assignees

• Sony Group Corp

Inventors

• Takahashi Isao
• Asaoka Satoko
• Hoshi Mitsunari
• Takada Masahiro
• Takeuchi Taichi
• Kurihara Kenichi
• Tejima Aya

Classifications

• B41J2002/4756

  Erasing by radiation · CPC title

• B41M5/284

  Organic thermochromic compounds · CPC title

• B41J2/442

  using lasers · CPC title

• B41M5/34

  Multicolour thermography · CPC title

• B41J2/475

  for heating selectively {by radiation or ultrasonic waves} · CPC title