Laser printing apparatus and method for colour dynamic image

Patent metadata

Field	Value
Publication number	US-10137717-B2
Application number	US-201515507737-A
Country	US
Kind code	B2
Filing date	Mar 30, 2015
Priority date	Sep 4, 2014
Publication date	Nov 27, 2018
Grant date	Nov 27, 2018

Abstract

A laser printing apparatus and method for a color dynamic image are provided. The laser printing apparatus includes an optical system and a recording material; the recording material includes a refraction layer formed by multiple microspheres or microlenses, and a shading layer formed on a focal plane of the multiple microshperes or microlenses; the optical system includes a laser and an graph generator, a laser light emitted by the laser irradiates onto the recording material after being processed by the image generator, the laser light irradiating onto the recording material is focused on the shading layer via the refraction layer, and a focus point is formed on the shading layer when energy of the focused laser light is greater than an evaporation threshold value of the shading layer.

First claim

The invention claimed is:

1. A laser printing apparatus for a color dynamic image, comprising:
an optical system
a recording material;
a pigment box: and
a pigment box moving assembly, wherein:
the recording material comprises: a refraction layer formed by a plurality of microspheres or microlenses, and a shading layer formed on a focal plane of the plurality of microspheres or microlenses;
the optical system comprises a laser and an image generator, a laser light emitted by the laser irradiates onto the recording material after being processed by the image generator, the laser light irradiating onto the recording material is focused on the shading layer via the refraction layer, and a focus point is formed on the shading layer when energy of the focused laser light is greater than an evaporation threshold value of the shading layer; and
the pigment box is arranged opposite to the shading layer of the recording material, and the pigment box moving assembly is configured to drive the pigment box to move.

2. The laser printing apparatus for a color dynamic image according to claim 1 , wherein a size of each of the plurality of microspheres or microlenses is in a range of 20 um to 300 um, and a size of the shading layer is in a range of 20 nm to 60 nm.

3. The laser printing apparatus for a color dynamic image according to claim 1 , further comprising an imaging lens group arranged on a light path between a diffuser sheet and the recording material.

4. The laser printing apparatus for a color dynamic image according to claim 1 , wherein the image generator comprises a mask having a light-transmission region forming a corresponding printing graph.

5. A laser printing apparatus for a color dynamic image, comprising:
an optical system; and
a recording material, wherein
the recording material comprises: a refraction layer formed by a plurality of microspheres or microlenses, and a shading layer formed on a focal plane of the plurality of microspheres or microlenses;
the optical system comprises a laser, an image generator, and a prism unit;
a laser light emitted by the laser irradiates onto the recording material after being processed by the image generator, the laser light irradiating onto the recording material is focused on the shading layer via the refraction layer, and a focus point is formed on the shading layer when energy of the focused laser light is greater than an evaporation threshold value of the shading layer;
the image generator in the optical system comprises an oscillating mirror unit and a diffuser sheet, the oscillating mirror unit is arranged on a light path of the laser light emitted by the laser and is configured to receive the laser light emitted by the laser and transmit the received laser light to the diffuser sheet, and the refraction layer of the recording material is arranged opposite to a light-egress side of the diffuser sheet and is configured to receive an expanded laser beam emitted by the diffuser sheet; and
the prism unit is arranged on a light path between the oscillating mirror unit and the diffuser sheet.

6. The laser printing apparatus for a color dynamic image according to claim 5 , wherein a size of each of the plurality of microspheres or microlenses is in a range of 20 um to 300 um, and a size of the shading layer is in a range of 20 nm to 60 nm.

7. The laser printing apparatus for a color dynamic image according to claim 5 , further comprising an imaging lens group arranged on a light path between the diffuser sheet and the recording material.

8. The laser printing apparatus for a color dynamic image according to claim 5 , wherein the image generator comprises a mask having a light-transmission region forming a corresponding printing graph.

Assignees

• Svg Optronics Co Ltd
• Univ Soochow
• Svg Optronics Co Ltd

Inventors

• Wei Guojun
• Chen Linsen
• Zhu Pengfei
• Pu Donglin
• Zhu Zhifei
• Li Heng

Classifications

• G02B3/0056

  arranged along two different directions in a plane, e.g. honeycomb arrangement of lenses (G02B3/0043 takes precedence; miniaturised objectives for electronic devices employing wafer level optics G02B13/0085) · CPC title

• B41J2/442

  using lasers · CPC title

• B41M3/148 Primary

  Transitory images, i.e. images only visible from certain viewing angles · CPC title

• B41M5/267

  Marking of plastic artifacts, e.g. with laser · CPC title

• G02B5/128

  transparent spheres being embedded in matrix · CPC title