Switchable mirror system for reflecting laser input during printing

Patent metadata

Field	Value
Publication number	US-10067362-B2
Application number	US-201615354301-A
Country	US
Kind code	B2
Filing date	Nov 17, 2016
Priority date	Nov 17, 2016
Publication date	Sep 4, 2018
Grant date	Sep 4, 2018

Abstract

A switchable mirror system and method includes a laser imaging module including one or more lasers and one or more DMDs (Digital Micromirror Devices), and a switchable mirror component located in a path upstream from the DMD (or DMDs) to direct a laser from the DMD when there is pause in a printing operation facilitated by said laser imaging module. A non-mechanical and electronic switchable mirror is thus located in the laser path between an LDA (Laser Diode Array) and a DMD to divert energy out of the system and away from the DMD during periods of non-laser imaging without reducing or power down the laser system.

First claim

What is claimed is:

1. A switchable mirror system, comprising:
a laser imaging module including at least one laser and at least one DMD; and
a switchable mirror component located in a path upstream from said at least one DMD to direct a laser from said at least one DMD when there is pause in a printing operation facilitated by said laser imaging module.

2. The system of claim 1 further comprising a mirror mode and a transparent mode, wherein said switchable mirror system allows for both said mirror mode in which said laser is reflected to said at least one DMD as a part of said path and onto a thermo-chromatic ink and for said transparent mode, removes said at least one mirror from said path of said laser and allows said laser to pass-through directly to a laser dump or a trap hidden behind said at least one mirror.

3. The system of claim 1 wherein said switchable mirror comprises a non-mechanical switchable mirror that allows said laser to remain powered during said printing operation while allowing unwanted incident energy to pass through said at least one mirror and out of said path of said laser away from said at least one DMD to reduce an operating temperature of said laser imaging module without inducing mechanical vibration.

4. The system of claim 1 wherein said switchable mirror is integrated into a print data stream and is actuated based on print data associated with said print data stream.

5. The system of claim 1 wherein said switchable mirror is integrated into a print data stream and is actuated based on process speeds.

6. The system of claim 1 wherein said switchable mirror is integrated into a print data stream and is actuated based on a media/ink presence.

7. The system of claim 1 wherein said switchable mirror is integrated into a print data stream and is actuated based on print data associated with said print data stream, process speeds, and a media/ink presence.

8. The system of claim 1 wherein said switchable mirror comprises a TMSM (Transition-Metal Switchable Mirror).

9. The system of claim 1 wherein said switchable mirror comprises a plurality of glass panels with a coating for switching back and forth between a transparent state and a reflective state when electronically activated.

10. A switchable mirror system, comprising:
a laser imaging module including at least one laser and at least one DMD; and
a switchable mirror component having a mirror mode and a transparent model, said switchable mirror component located in a path upstream from said at least one DMD to direct a laser from said at least one DMD when there is pause in a printing operation facilitated by said laser imaging module.

11. The system of claim 10 wherein said switchable mirror system allows for both said mirror mode in which said laser is reflected to said at least one DMD as a part of said path and onto a thermo-chromatic ink and for said transparent mode, removes said at least one mirror from said path of said laser, and allows said laser to pass-through directly to a laser dump or a trap hidden behind said at least one mirror.

12. A switchable mirror method, comprising:
providing a laser imaging module including at least one laser and at least one DMD; and
locating a switchable mirror located in a path upstream from said at least one DMD to direct a laser associated with said imaging module when there is pause in a printing operation facilitated by said laser imaging module.

13. The method of claim 12 further comprising providing a mirror mode and a transparent mode, wherein said switchable mirror system allows for both said mirror mode in which said laser is reflected to said at least one DMD as a part of said path and onto a thermo-chromatic ink and for said transparent mode, removes said at least one mirror from said path of said laser, and allows said laser to pass-through directly to a laser dump or a trap hidden behind said at least one mirror.

14. The method of claim 12 wherein said switchable mirror comprises a non-mechanical switchable mirror that allows said laser to remain powered during said printing operation while allowing unwanted incident energy to pass through said at least one mirror and out of said path of said laser away from said at least one DMD to reduce an operating temperature of said laser imaging module without inducing mechanical vibration.

15. The method of claim 12 wherein said switchable mirror is integrated into a print data stream and is actuated based on print data associated with said print data stream.

16. The method of claim 12 wherein said switchable mirror is integrated into a print data stream and is actuated based on process speeds.

17. The method of claim 12 wherein said switchable mirror is integrated into a print data stream and is actuated based on a media/ink presence.

18. The method of claim 12 wherein said switchable mirror is integrated into a print data stream and is actuated based on print data associated with said print data stream, process speeds, and a media/ink presence.

19. The method of claim 12 wherein said switchable mirror comprises a TMSM (Transition-Metal Switchable Mirror).

20. The method of claim 12 wherein said switchable mirror comprises a plurality of glass panels with a coating for switching back and forth between a transparent state and a reflective state when electronically activated.

Assignees

• Xerox Corp

Inventors

• Herrmann Douglas K
• Moore Steven R
• Lefevre Jason M
• Mcconville Paul J

Classifications

• G02F1/0121 Primary

  Operation of devices; Circuit arrangements, not otherwise provided for in this subclass · CPC title

• B41J2/455

  using laser arrays {, the laser array being smaller than the medium to be recorded} · CPC title

• B41J2/447

  using arrays of radiation sources (B41J2/475 takes precedence) · CPC title

• G02F1/0009

  Materials therefor · CPC title

• G02B26/0833

  the reflecting element being a micromechanical device, e.g. a MEMS mirror, DMD (G02B26/0825 takes precedence; micromechanical devices in general B81B) · CPC title